commit f4094724e84227a14b6c84f6b2ea6090fdb5798f
Author: typable <contact@typable.dev>
Date: Sun, 2 Jun 2024 22:44:29 +0200
Initial commit
Diffstat:
| A | Makefile | | | 5 | +++++ |
| A | README.md | | | 3 | +++ |
| A | assets/entities.png | | | 0 | |
| A | assets/font.png | | | 0 | |
| A | assets/images.png | | | 0 | |
| A | assets/tiles.png | | | 0 | |
| A | src/const.h | | | 14 | ++++++++++++++ |
| A | src/effect.c | | | 73 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| A | src/effect.h | | | 26 | ++++++++++++++++++++++++++ |
| A | src/enemy.c | | | 224 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| A | src/enemy.h | | | 31 | +++++++++++++++++++++++++++++++ |
| A | src/entity.c | | | 48 | ++++++++++++++++++++++++++++++++++++++++++++++++ |
| A | src/entity.h | | | 26 | ++++++++++++++++++++++++++ |
| A | src/game.c | | | 206 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| A | src/game.h | | | 48 | ++++++++++++++++++++++++++++++++++++++++++++++++ |
| A | src/gate.c | | | 99 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| A | src/gate.h | | | 19 | +++++++++++++++++++ |
| A | src/level.c | | | 208 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| A | src/level.h | | | 23 | +++++++++++++++++++++++ |
| A | src/libs/raylib.h | | | 1673 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| A | src/libs/raymath.h | | | 2191 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| A | src/main.c | | | 40 | ++++++++++++++++++++++++++++++++++++++++ |
| A | src/menu.c | | | 83 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| A | src/menu.h | | | 14 | ++++++++++++++ |
| A | src/player.c | | | 404 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| A | src/player.h | | | 32 | ++++++++++++++++++++++++++++++++ |
| A | src/tile.c | | | 110 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| A | src/tile.h | | | 31 | +++++++++++++++++++++++++++++++ |
| A | src/util.c | | | 124 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| A | src/util.h | | | 42 | ++++++++++++++++++++++++++++++++++++++++++ |
| A | todo.md | | | 17 | +++++++++++++++++ |
31 files changed, 5814 insertions(+), 0 deletions(-)
diff --git a/Makefile b/Makefile
@@ -0,0 +1,5 @@
+build:
+ cc -o freezo -I/opt/homebrew/Cellar/raylib/5.0/include -L/opt/homebrew/Cellar/raylib/5.0/lib -lraylib -rdynamic -Wall -Wextra -Werror -pedantic src/*.c
+
+run: build
+ ./freezo
diff --git a/README.md b/README.md
@@ -0,0 +1,3 @@
+# freezo
+
+A retro platform game
diff --git a/assets/entities.png b/assets/entities.png
Binary files differ.
diff --git a/assets/font.png b/assets/font.png
Binary files differ.
diff --git a/assets/images.png b/assets/images.png
Binary files differ.
diff --git a/assets/tiles.png b/assets/tiles.png
Binary files differ.
diff --git a/src/const.h b/src/const.h
@@ -0,0 +1,14 @@
+#define SCALE 3
+#define TILE_WIDTH 8 * SCALE
+#define TILE_HEIGHT 8 * SCALE
+#define WINDOW_WIDTH 24 * TILE_WIDTH
+#define WINDOW_HEIGHT 16 * TILE_HEIGHT
+#define PLAYER_WIDTH 8 * SCALE
+#define PLAYER_HEIGHT 12 *SCALE
+#define ENEMY_WIDTH 8 * SCALE
+#define ENEMY_HEIGHT 12 * SCALE
+#define PLAYER_HEALTH 6
+#define PLAYER_SHOOTING_RANGE 2 * TILE_WIDTH
+#define PLAYER_GRAVITY 10
+#define FONT_WIDTH 5 * (SCALE - 1)
+#define FONT_HEIGHT 7 * (SCALE - 1)
diff --git a/src/effect.c b/src/effect.c
@@ -0,0 +1,73 @@
+#include <stdlib.h>
+
+#include "effect.h"
+#include "util.h"
+#include "const.h"
+
+effect_t *effect_create(pos_t pos, effect_e type) {
+ effect_t *effect = malloc(sizeof(effect_t));
+ effect->type = type;
+ effect->pos = pos;
+ switch (type) {
+ case EFFECT_FALL:
+ effect->timer = timer_create(7, 3);
+ break;
+ case EFFECT_BREAK:
+ effect->timer = timer_create(10, 3);
+ break;
+ case EFFECT_PARTICLE:
+ effect->timer = timer_create(14, 4);
+ break;
+ }
+ effect->count = 0;
+ return effect;
+}
+
+void effect_update(effect_t *effect, game_t *game) {
+ timer_update(effect->timer);
+ if (timer_check(effect->timer)) {
+ effect->count++;
+ }
+ // remove effect after one iteration
+ if (effect->count > 0) {
+ for (int i = 0; i < game->effects_len; i++) {
+ if (game->effects[i] == effect) {
+ if (i + 1 < game->effects_len) {
+ for (int j = i; j < game->effects_len - 1; j++) {
+ game->effects[j] = game->effects[j + 1];
+ }
+ }
+ game->effects_len--;
+ game->effects = realloc(game->effects, sizeof(effect_t) * game->effects_len);
+ break;
+ }
+ }
+ }
+}
+
+void effect_draw(effect_t *effect, game_t *game) {
+ int x;
+ switch (effect->type) {
+ case EFFECT_FALL:
+ x = 1;
+ break;
+ case EFFECT_BREAK:
+ x = 0;
+ break;
+ case EFFECT_PARTICLE:
+ x = 3;
+ break;
+ }
+ int frame = timer_get(effect->timer);
+ DrawTextureRec(game->assets.entities, texture_rect(frame, x, PLAYER_WIDTH, PLAYER_HEIGHT), pos_snap(effect->pos), WHITE);
+}
+
+void effect_free(effect_t *effect) {
+ free(effect);
+}
+
+void effect_play(pos_t pos, effect_e type, game_t *game) {
+ game->effects = realloc(game->effects, sizeof(effect_t) * (game->effects_len + 1));
+ game->effects[game->effects_len] = effect_create(pos, type);
+ game->effects_len++;
+}
diff --git a/src/effect.h b/src/effect.h
@@ -0,0 +1,26 @@
+#pragma once
+
+typedef struct Effect effect_t;
+
+#include "game.h"
+#include "util.h"
+
+typedef enum {
+ EFFECT_FALL,
+ EFFECT_BREAK,
+ EFFECT_PARTICLE,
+} effect_e;
+
+struct Effect {
+ effect_e type;
+ pos_t pos;
+ timer_t *timer;
+ int count;
+};
+
+effect_t *effect_create(pos_t pos, effect_e type);
+void effect_update(effect_t *effect, game_t *game);
+void effect_draw(effect_t *effect, game_t *game);
+void effect_free(effect_t *effect);
+
+void effect_play(pos_t pos, effect_e type, game_t *game);
diff --git a/src/enemy.c b/src/enemy.c
@@ -0,0 +1,224 @@
+#include <stdlib.h>
+#include <math.h>
+
+#include "enemy.h"
+#include "const.h"
+#include "entity.h"
+#include "effect.h"
+
+enemy_t *enemy_create(pos_t pos, enemy_e type) {
+ enemy_t *enemy = malloc(sizeof(enemy_t));
+ enemy->pos = pos;
+ enemy->type = type;
+ enemy->on_ground = false;
+ enemy->velocity = 0.0;
+ enemy->gravity = 0.0;
+ enemy->dir = 1;
+ enemy->stunned = false;
+ enemy->frozen = false;
+ enemy->frozen_timer = 0;
+ enemy->fall_height = 0.0;
+ enemy->timer_walking = timer_create(9, 8);
+ enemy->timer_sneaking = timer_create(9, 16);
+ return enemy;
+}
+
+void enemy_update(enemy_t *enemy, game_t *game) {
+ enemy->stunned = false;
+ bool on_ground = false;
+ // not beeing held
+ if (game->player->held_enemy != enemy) {
+ // detect on ground
+ if (!(enemy->velocity > 0.0)) {
+ for (int i = 0; i < game->tiles_len; i++) {
+ tile_t *tile = game->tiles[i];
+ if (tile_ground(tile)) {
+ if (
+ enemy->pos.x + PLAYER_WIDTH > tile->pos.x &&
+ enemy->pos.x < tile->pos.x + TILE_WIDTH
+ ) {
+ float tolerance = 4.0;
+ if (enemy->gravity > tolerance) {
+ tolerance = enemy->gravity;
+ }
+ if (fabs(enemy->pos.y + PLAYER_HEIGHT - tile->pos.y) < tolerance) {
+ enemy->pos.y = tile->pos.y - PLAYER_HEIGHT;
+ on_ground = true;
+ if (enemy->fall_height >= 2 * TILE_HEIGHT) {
+ effect_play(enemy->pos, EFFECT_BREAK, game);
+ effect_play(enemy->pos, EFFECT_PARTICLE, game);
+ enemy_kill(enemy, game);
+ }
+ }
+ }
+ }
+ }
+ }
+ enemy->on_ground = on_ground;
+ if (enemy->on_ground) {
+ enemy->gravity = 0.0;
+ enemy->fall_height = 0.0;
+ }
+ else {
+ enemy->pos.y += enemy->gravity;
+ enemy->fall_height += enemy->gravity;
+ if (enemy->gravity < PLAYER_GRAVITY) {
+ enemy->gravity += 0.2;
+ }
+ else {
+ enemy->gravity = PLAYER_GRAVITY;
+ }
+ }
+ // handle shooting
+ if (
+ game->player->shooting &&
+ game->player->target_entity != NULL &&
+ game->player->target_entity->type == ENTITY_ENEMY &&
+ game->player->target_entity->enemy == enemy
+ ) {
+ if (enemy->frozen) {
+ if (game->player->dir > 0) {
+ enemy->pos.x += 2.0;
+ }
+ else {
+ enemy->pos.x -= 2.0;
+ }
+ }
+ else {
+ enemy->stunned = true;
+ }
+ }
+ }
+ // handle freezing
+ if (!enemy->frozen) {
+ if (enemy->stunned) {
+ if (enemy->frozen_timer >= 100) {
+ enemy->frozen = true;
+ enemy->frozen_timer = 0;
+ }
+ enemy->frozen_timer++;
+ }
+ else if (enemy->frozen_timer > 0) {
+ enemy->frozen_timer--;
+ }
+ }
+ else {
+ if (enemy->frozen_timer >= 1500) {
+ enemy->frozen = false;
+ enemy->frozen_timer = 0;
+ if (game->player->held_enemy == enemy) {
+ game->player->held_enemy = NULL;
+ }
+ }
+ enemy->frozen_timer++;
+ }
+ // handle movement
+ tile_t *next_ground_tile = tile_get(game, enemy->pos.x + ENEMY_WIDTH / 2.0 + enemy->dir * ENEMY_WIDTH / 2.0, enemy->pos.y + ENEMY_HEIGHT + 1);
+ if (!enemy->frozen) {
+ if (enemy->on_ground && (next_ground_tile == NULL || next_ground_tile->type == TILE_AIR)) {
+ enemy->dir = -enemy->dir;
+ }
+ if (enemy->stunned) {
+ enemy->pos.x += enemy->dir * 0.1;
+ }
+ else {
+ enemy->pos.x += enemy->dir * 0.5;
+ }
+ }
+ // detect wall
+ for (int i = 0; i < game->tiles_len; i++) {
+ tile_t *tile = game->tiles[i];
+ if (tile_wall(tile)) {
+ if (
+ enemy->pos.y + ENEMY_HEIGHT > tile->pos.y &&
+ enemy->pos.y < tile->pos.y + TILE_HEIGHT
+ ) {
+ float tolerance = 4.0;
+ if (enemy->dir > 0) {
+ if (fabs((enemy->pos.x + ENEMY_WIDTH - 0.4 * TILE_WIDTH) - tile->pos.x) < tolerance) {
+ enemy->dir = -enemy->dir;
+ }
+ }
+ else {
+ if (fabs((enemy->pos.x + 0.4 * TILE_WIDTH) - (tile->pos.x + TILE_WIDTH)) < tolerance) {
+ enemy->dir = -enemy->dir;
+ }
+ }
+ }
+ }
+ }
+ // fall out of map
+ if (enemy->pos.y > TILE_HEIGHT * game->level->height) {
+ pos_t pos = { enemy->pos.x, enemy->pos.y - ENEMY_HEIGHT + ENEMY_HEIGHT / 3.0 };
+ effect_play(pos, EFFECT_PARTICLE, game);
+ enemy_kill(enemy, game);
+ }
+ // update timer
+ if (enemy->on_ground && !enemy->frozen) {
+ timer_update(enemy->timer_walking);
+ timer_update(enemy->timer_sneaking);
+ }
+ else {
+ timer_reset(enemy->timer_walking);
+ timer_reset(enemy->timer_sneaking);
+ }
+}
+
+void enemy_draw(enemy_t *enemy, game_t *game) {
+ pos_t pos = pos_snap(enemy->pos);
+ int frame_walking = timer_get(enemy->timer_walking);
+ int frame_sneaking = timer_get(enemy->timer_sneaking);
+ if (enemy->dir > 0) {
+ DrawTextureRec(game->assets.entities, texture_rect(enemy->stunned ? frame_sneaking : frame_walking, 8, PLAYER_WIDTH, PLAYER_HEIGHT), pos, WHITE);
+ }
+ else {
+ DrawTextureRec(game->assets.entities, texture_rect(enemy->stunned ? frame_sneaking : frame_walking, 9, PLAYER_WIDTH, PLAYER_HEIGHT), pos, WHITE);
+ }
+ if (enemy->frozen) {
+ if (enemy->frozen_timer <= 1200) {
+ DrawTextureRec(game->assets.entities, texture_rect(3, 2, PLAYER_WIDTH, PLAYER_HEIGHT), pos, WHITE);
+ }
+ else if (enemy->frozen_timer <= 1350) {
+ DrawTextureRec(game->assets.entities, texture_rect(4, 2, PLAYER_WIDTH, PLAYER_HEIGHT), pos, WHITE);
+ }
+ else if (enemy->frozen_timer <= 1450) {
+ DrawTextureRec(game->assets.entities, texture_rect(5, 2, PLAYER_WIDTH, PLAYER_HEIGHT), pos, WHITE);
+ }
+ else {
+ DrawTextureRec(game->assets.entities, texture_rect(6, 2, PLAYER_WIDTH, PLAYER_HEIGHT), pos, WHITE);
+ }
+ }
+ else if (enemy->stunned) {
+ if (enemy->frozen_timer <= 33) {
+ DrawTextureRec(game->assets.entities, texture_rect(0, 2, PLAYER_WIDTH, PLAYER_HEIGHT), pos, WHITE);
+ }
+ else if (enemy->frozen_timer <= 66) {
+ DrawTextureRec(game->assets.entities, texture_rect(1, 2, PLAYER_WIDTH, PLAYER_HEIGHT), pos, WHITE);
+ }
+ else {
+ DrawTextureRec(game->assets.entities, texture_rect(2, 2, PLAYER_WIDTH, PLAYER_HEIGHT), pos, WHITE);
+ }
+ }
+}
+
+void enemy_kill(enemy_t *enemy, game_t *game) {
+ for (int i = 0; i < game->entities_len; i++) {
+ if (game->entities[i].type == ENTITY_ENEMY && game->entities[i].enemy == enemy) {
+ if (i + 1 < game->entities_len) {
+ for (int j = i; j < game->entities_len - 1; j++) {
+ game->entities[j] = game->entities[j + 1];
+ }
+ }
+ game->entities_len--;
+ game->entities = realloc(game->entities, sizeof(entity_t) * game->entities_len);
+ game->xp += 10;
+ break;
+ }
+ }
+}
+
+void enemy_free(enemy_t *enemy) {
+ timer_free(enemy->timer_walking);
+ timer_free(enemy->timer_sneaking);
+ free(enemy);
+}
diff --git a/src/enemy.h b/src/enemy.h
@@ -0,0 +1,31 @@
+#pragma once
+
+typedef struct Enemy enemy_t;
+
+#include "game.h"
+#include "util.h"
+
+typedef enum {
+ ENEMY_TEST,
+} enemy_e;
+
+struct Enemy {
+ pos_t pos;
+ enemy_e type;
+ bool on_ground;
+ float velocity;
+ float gravity;
+ int dir;
+ bool stunned;
+ bool frozen;
+ int frozen_timer;
+ float fall_height;
+ timer_t *timer_walking;
+ timer_t *timer_sneaking;
+};
+
+enemy_t *enemy_create(pos_t pos, enemy_e type);
+void enemy_update(enemy_t *enemy, game_t *game);
+void enemy_draw(enemy_t *enemy, game_t *game);
+void enemy_kill(enemy_t *enemy, game_t *game);
+void enemy_free(enemy_t *enemy);
diff --git a/src/entity.c b/src/entity.c
@@ -0,0 +1,48 @@
+#include <stdlib.h>
+
+#include "entity.h"
+#include "enemy.h"
+#include "gate.h"
+
+entity_t *entity_create(entity_e type) {
+ entity_t *entity = malloc(sizeof(entity_t));
+ entity->type = type;
+ return entity;
+}
+
+void entity_update(entity_t *entity, game_t *game) {
+ switch (entity->type) {
+ case ENTITY_ENEMY:
+ enemy_update(entity->enemy, game);
+ break;
+ case ENTITY_GATE:
+ gate_update(entity->gate, game);
+ break;
+ }
+}
+
+void entity_draw(entity_t *entity, game_t *game) {
+ switch (entity->type) {
+ case ENTITY_ENEMY:
+ enemy_draw(entity->enemy, game);
+ break;
+ case ENTITY_GATE:
+ gate_draw(entity->gate, game);
+ break;
+ }
+}
+
+void entity_detach(entity_t *entity) {
+ switch (entity->type) {
+ case ENTITY_ENEMY:
+ enemy_free(entity->enemy);
+ break;
+ case ENTITY_GATE:
+ gate_free(entity->gate);
+ break;
+ }
+}
+
+void entity_free(entity_t *entity) {
+ free(entity);
+}
diff --git a/src/entity.h b/src/entity.h
@@ -0,0 +1,26 @@
+#pragma once
+
+typedef struct Entity entity_t;
+
+#include "enemy.h"
+#include "gate.h"
+#include "game.h"
+
+typedef enum {
+ ENTITY_ENEMY,
+ ENTITY_GATE,
+} entity_e;
+
+struct Entity {
+ entity_e type;
+ union {
+ enemy_t *enemy;
+ gate_t *gate;
+ };
+};
+
+entity_t *entity_create(entity_e type);
+void entity_update(entity_t *entity, game_t *game);
+void entity_draw(entity_t *entity, game_t *game);
+void entity_detach(entity_t *entity);
+void entity_free(entity_t *entity);
diff --git a/src/game.c b/src/game.c
@@ -0,0 +1,206 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "libs/raylib.h"
+#include "entity.h"
+#include "game.h"
+#include "tile.h"
+#include "util.h"
+#include "player.h"
+#include "const.h"
+#include "level.h"
+
+game_t *game_create(void) {
+ game_t *game = malloc(sizeof(game_t));
+ game->state = STATE_GAME;
+ game->level = NULL,
+ game->quit = false;
+ game->defeat = false;
+ game->victory = false;
+ game->menu = menu_create();
+ game->player = NULL;
+ game->tiles = NULL;
+ game->tiles_len = 0;
+ game->entities = NULL;
+ game->entities_len = 0;
+ game->effects = NULL;
+ game->effects_len = 0;
+ game->assets.tiles = texture_load("assets/tiles.png", SCALE);
+ game->assets.entities = texture_load("assets/entities.png", SCALE);
+ game->assets.font = texture_load("assets/font.png", SCALE - 1);
+ game->assets.images = texture_load("assets/images.png", SCALE);
+ game->camera = (Camera2D) {
+ .offset = (pos_t) { 0.0, 0.0 },
+ .zoom = 1,
+ };
+ game->xp = 0;
+ game->sceen_timer = 0;
+ level_load(game, LEVEL_1);
+ return game;
+}
+
+void game_update(game_t *game) {
+ switch (game->state) {
+ case STATE_MENU: {
+ menu_update(game->menu, game);
+ break;
+ }
+ case STATE_GAME: {
+ if (IsKeyPressed(KEY_ESCAPE)) {
+ game->state = STATE_MENU;
+ game->menu->idx = 0;
+ }
+ if (game->level != NULL) {
+ // defeat
+ if (game->defeat) {
+ if (game->sceen_timer == 100) {
+ level_unload(game);
+ level_load(game, LEVEL_1);
+ game->defeat = false;
+ game->xp = 0;
+ game->sceen_timer = 0;
+ }
+ else {
+ game->sceen_timer++;
+ }
+ }
+ // victory
+ int enemies_len = 0;
+ bool gates_frozen = true;
+ for (int i = 0; i < game->entities_len; i++) {
+ if(game->entities[i].type == ENTITY_ENEMY) {
+ enemies_len++;
+ }
+ if(game->entities[i].type == ENTITY_GATE) {
+ if (!game->entities[i].gate->frozen) {
+ gates_frozen = false;
+ }
+ }
+ }
+ if (enemies_len == 0 && gates_frozen) {
+ game->victory = true;
+ if (game->victory) {
+ if (game->sceen_timer == 100) {
+ if (game->level->type < LEVELS) {
+ level_e level = game->level->type;
+ level++;
+ level_unload(game);
+ level_load(game, level);
+ }
+ game->victory = false;
+ game->sceen_timer = 0;
+ }
+ else {
+ game->sceen_timer++;
+ }
+ }
+ }
+ if (!game->victory && !game->defeat) {
+ player_update(game->player, game);
+ }
+ for (int i = 0; i < game->tiles_len; i++) {
+ tile_update(game->tiles[i], game);
+ }
+ for (int i = 0; i < game->entities_len; i++) {
+ int len = game->entities_len;
+ entity_update(&game->entities[i], game);
+ // check if entity was removed
+ if (game->entities_len < len) {
+ i--;
+ }
+ }
+ for (int i = 0; i < game->effects_len; i++) {
+ int len = game->effects_len;
+ effect_update(game->effects[i], game);
+ // check if enemy was removed
+ if (game->effects_len < len) {
+ i--;
+ }
+ }
+ pos_t camera_pos = (pos_t) {
+ .x = WINDOW_WIDTH / 2.0 - game->player->pos.x - PLAYER_WIDTH / 2.0,
+ .y = WINDOW_HEIGHT / 2.0 - game->player->pos.y,
+ };
+ if (camera_pos.x > 0.0) {
+ camera_pos.x = 0.0;
+ }
+ if (camera_pos.x + TILE_WIDTH * game->level->width < WINDOW_WIDTH) {
+ camera_pos.x = WINDOW_WIDTH - TILE_WIDTH * game->level->width;
+ }
+ if (camera_pos.y > 0.0) {
+ camera_pos.y = 0.0;
+ }
+ if (camera_pos.y + TILE_HEIGHT * game->level->height < WINDOW_HEIGHT) {
+ camera_pos.y = WINDOW_HEIGHT - TILE_HEIGHT * game->level->height;
+ }
+ game->camera.offset = pos_snap(camera_pos);
+ }
+ break;
+ }
+ }
+}
+
+void game_draw(game_t *game) {
+ BeginDrawing();
+ ClearBackground(BLACK);
+ if (game->level != LEVEL_NULL) {
+ BeginMode2D(game->camera);
+ for (int i = 0; i < game->tiles_len; i++) {
+ tile_draw(game->tiles[i], game);
+ }
+ for (int i = 0; i < game->entities_len; i++) {
+ entity_draw(&game->entities[i], game);
+ }
+ player_draw(game->player, game);
+ for (int i = 0; i < game->effects_len; i++) {
+ effect_draw(game->effects[i], game);
+ }
+ EndMode2D();
+ // draw interface
+ int i = 0;
+ for (i = 0; i < game->player->health / 2; i++) {
+ DrawTextureRec(game->assets.tiles, texture_rect(0, 1, TILE_WIDTH, TILE_HEIGHT), (pos_t) { TILE_WIDTH / 2.0 + i * (TILE_WIDTH + TILE_WIDTH / 4.0), TILE_WIDTH / 2.0 }, WHITE);
+ }
+ if (game->player->health % 2 != 0) {
+ DrawTextureRec(game->assets.tiles, texture_rect(1, 1, TILE_WIDTH, TILE_HEIGHT), (pos_t) { TILE_WIDTH / 2.0 + i * (TILE_WIDTH + TILE_WIDTH / 4.0), TILE_WIDTH / 2.0 }, WHITE);
+ i++;
+ }
+ for (; i < PLAYER_HEALTH / 2; i++) {
+ DrawTextureRec(game->assets.tiles, texture_rect(2, 1, TILE_WIDTH, TILE_HEIGHT), (pos_t) { TILE_WIDTH / 2.0 + i * (TILE_WIDTH + TILE_WIDTH / 4.0), TILE_WIDTH / 2.0 }, WHITE);
+ }
+ char xp_text[10];
+ snprintf(xp_text, 10, "%dXP", game->xp);
+ pos_t xp_pos = (pos_t) {
+ .x = WINDOW_WIDTH - TILE_WIDTH / 2.0,
+ .y = TILE_WIDTH / 1.5,
+ };
+ text_draw(xp_pos, xp_text, TEXT_ALIGNMENT_RIGHT, game);
+ char level_text[10];
+ snprintf(level_text, 10, "L%d", game->level->type);
+ pos_t level_pos = (pos_t) {
+ .x = WINDOW_WIDTH - TILE_WIDTH / 2.0,
+ .y = TILE_WIDTH / 1.5 + 25,
+ };
+ text_draw(level_pos, level_text, TEXT_ALIGNMENT_RIGHT, game);
+ if (game->defeat || game->victory) {
+ DrawRectangle(0, 0, WINDOW_WIDTH, WINDOW_HEIGHT, (Color) { 0, 0, 0, 255 / 100 * game->sceen_timer });
+ }
+ }
+ if (game->state == STATE_MENU) {
+ menu_draw(game->menu, game);
+ }
+ EndDrawing();
+}
+
+void game_free(game_t *game) {
+ menu_free(game->menu);
+ if (game->level != LEVEL_NULL) {
+ level_unload(game);
+ }
+ UnloadTexture(game->assets.tiles);
+ UnloadTexture(game->assets.entities);
+ UnloadTexture(game->assets.font);
+ UnloadTexture(game->assets.images);
+ free(game);
+}
diff --git a/src/game.h b/src/game.h
@@ -0,0 +1,48 @@
+#pragma once
+
+typedef struct Assets assets_t;
+typedef struct Game game_t;
+
+#include "entity.h"
+#include "player.h"
+#include "tile.h"
+#include "menu.h"
+#include "level.h"
+#include "effect.h"
+
+typedef enum {
+ STATE_MENU,
+ STATE_GAME,
+} state_e;
+
+struct Assets {
+ Texture2D tiles;
+ Texture2D entities;
+ Texture2D font;
+ Texture2D images;
+};
+
+struct Game {
+ state_e state;
+ level_t *level;
+ bool quit;
+ bool defeat;
+ bool victory;
+ menu_t *menu;
+ player_t *player;
+ tile_t **tiles;
+ int tiles_len;
+ entity_t *entities;
+ int entities_len;
+ effect_t **effects;
+ int effects_len;
+ assets_t assets;
+ Camera2D camera;
+ int xp;
+ int sceen_timer;
+};
+
+game_t *game_create(void);
+void game_update(game_t *game);
+void game_draw(game_t *game);
+void game_free(game_t *game);
diff --git a/src/gate.c b/src/gate.c
@@ -0,0 +1,99 @@
+#include <stdlib.h>
+
+#include "entity.h"
+#include "gate.h"
+#include "const.h"
+
+gate_t *gate_create(pos_t pos, int enemy_max, int time) {
+ gate_t *gate = malloc(sizeof(gate_t));
+ gate->pos = pos;
+ gate->enemy_max = enemy_max;
+ gate->timer_spawn = timer_create(1, time);
+ gate->frozen = false;
+ gate->frozen_timer = 0;
+ return gate;
+}
+
+void gate_update(gate_t *gate, game_t *game) {
+ if (!gate->frozen) {
+ bool stunned = false;
+ if (
+ game->player->shooting &&
+ game->player->target_entity != NULL &&
+ game->player->target_entity->type == ENTITY_GATE &&
+ game->player->target_entity->gate == gate
+ ) {
+ if (gate->frozen) {
+ if (game->player->dir > 0) {
+ gate->pos.x += 2.0;
+ }
+ else {
+ gate->pos.x -= 2.0;
+ }
+ }
+ else {
+ stunned = true;
+ }
+ }
+ // handle freezing
+ if (stunned) {
+ if (gate->frozen_timer >= 300) {
+ gate->frozen = true;
+ gate->frozen_timer = 0;
+ }
+ gate->frozen_timer++;
+ }
+ else if (gate->frozen_timer > 0) {
+ gate->frozen_timer--;
+ }
+ // handle spawning
+ timer_update(gate->timer_spawn);
+ int enemies_len = 0;
+ for (int i = 0; i < game->entities_len; i++) {
+ if(game->entities[i].type == ENTITY_ENEMY) {
+ enemies_len++;
+ }
+ }
+ if (timer_check(gate->timer_spawn) && enemies_len < gate->enemy_max) {
+ game->entities = realloc(game->entities, sizeof(entity_t) * (game->entities_len + 1));
+ enemy_t *enemy = enemy_create((pos_t) {
+ .x = gate->pos.x + (TILE_WIDTH - ENEMY_WIDTH) / 2.0,
+ .y = gate->pos.y + TILE_HEIGHT - ENEMY_HEIGHT,
+ }, ENEMY_TEST);
+ enemy->dir = (rand() & 1) ? 1 : -1;
+ game->entities[game->entities_len] = (entity_t) {
+ .type = ENTITY_ENEMY,
+ .enemy = enemy,
+ };
+ game->entities_len++;
+ }
+ }
+}
+
+void gate_draw(gate_t *gate, game_t *game) {
+ DrawTextureRec(game->assets.tiles, texture_rect(0, 2, TILE_WIDTH, TILE_HEIGHT), (pos_t) { gate->pos.x, gate->pos.y - TILE_HEIGHT }, WHITE);
+ DrawTextureRec(game->assets.tiles, texture_rect(0, 3, TILE_WIDTH, TILE_HEIGHT), gate->pos, WHITE);
+ pos_t pos = pos_snap((pos_t) {
+ .x = gate->pos.x,
+ .y = gate->pos.y - (ENEMY_HEIGHT - TILE_HEIGHT),
+ });
+ if (gate->frozen) {
+ DrawTextureRec(game->assets.entities, texture_rect(3, 2, PLAYER_WIDTH, PLAYER_HEIGHT), pos, WHITE);
+ }
+ if (!gate->frozen && gate->frozen_timer > 0) {
+ if (gate->frozen_timer <= 100) {
+ DrawTextureRec(game->assets.entities, texture_rect(0, 2, PLAYER_WIDTH, PLAYER_HEIGHT), pos, WHITE);
+ }
+ else if (gate->frozen_timer <= 200) {
+ DrawTextureRec(game->assets.entities, texture_rect(1, 2, PLAYER_WIDTH, PLAYER_HEIGHT), pos, WHITE);
+ }
+ else {
+ DrawTextureRec(game->assets.entities, texture_rect(2, 2, PLAYER_WIDTH, PLAYER_HEIGHT), pos, WHITE);
+ }
+ }
+}
+
+void gate_free(gate_t *gate) {
+ free(gate->timer_spawn);
+ free(gate);
+}
diff --git a/src/gate.h b/src/gate.h
@@ -0,0 +1,19 @@
+#pragma once
+
+typedef struct Gate gate_t;
+
+#include "game.h"
+#include "util.h"
+
+struct Gate {
+ pos_t pos;
+ int enemy_max;
+ timer_t *timer_spawn;
+ bool frozen;
+ int frozen_timer;
+};
+
+gate_t *gate_create(pos_t pos, int enemy_max, int time);
+void gate_update(gate_t *gate, game_t *game);
+void gate_draw(gate_t *gate, game_t *game);
+void gate_free(gate_t *gate);
diff --git a/src/level.c b/src/level.c
@@ -0,0 +1,208 @@
+#include <stdlib.h>
+
+#include "enemy.h"
+#include "level.h"
+#include "const.h"
+#include "tile.h"
+#include "entity.h"
+
+const char *LEVEL_MAP_1 = {
+ "........................"
+ "........................"
+ "........................"
+ "........................"
+ "........................"
+ "........................"
+ "......e................."
+ "....xxxx................"
+ "........................"
+ "...........--...xxx....."
+ "................e......."
+ "...............--xxxxx.."
+ "....p..................."
+ "..ggggggggg---xxxxxxxx.."
+ "........................"
+ "........................"
+};
+
+const char *LEVEL_MAP_2 = {
+ "........................"
+ "........................"
+ "........................"
+ "........................"
+ "........................"
+ "..............xxxx......"
+ "........s.e............."
+ "....xxxxxxxxxtxxx--x...."
+ ".............w.........."
+ ".............w...--....."
+ ".............w.........."
+ ".........----x...--....."
+ "....p...............e..."
+ "..ggggg....xxxxxxxxxxx.."
+ "........................"
+ "........................"
+};
+
+const char *LEVEL_MAP_3 = {
+ "........................................"
+ "........................................"
+ "........................................"
+ "........................................"
+ "........................................"
+ "........................................"
+ "........................................"
+ "........................................"
+ "........................................"
+ "........................................"
+ "......e..................e...s.........."
+ "....ggggg...--...xxxxxxxxxxxxxxxxx......"
+ "........................................"
+ "............--.........................."
+ "....................e..................."
+ "............--...xxxxxxxxt-............."
+ ".........................w.............."
+ "............--...........w-............."
+ "..............e.......s..w..e..........."
+ "..........xxxxxxxxxxxxxxxxxxxxxxxt--x..."
+ ".................................w......"
+ ".................................w--...."
+ ".................................w......"
+ ".................................w--...."
+ "........................e........w......"
+ "....................xxtxxxtxx----x--...."
+ "....p.......e.........w...w............."
+ "..ggggg..-----...xxxxxxxxxxxxxxxxxxxxx.."
+ "........................................"
+ "........................................"
+};
+
+void level_generate(game_t *game, const char *map, int width, int height) {
+ game->player = NULL;
+ game->tiles = malloc(sizeof(tile_t) * width * height);
+ game->tiles_len = width * height;
+ game->entities = NULL;
+ game->entities_len = 0;
+ game->effects = NULL;
+ game->effects_len = 0;
+ for (int y = 0; y < height; y++) {
+ for (int x = 0; x < width; x++) {
+ int idx = y * width + x;
+ char c = map[idx];
+ game->tiles[idx] = tile_create((pos_t) {
+ .x = x * TILE_WIDTH,
+ .y = y * TILE_HEIGHT,
+ }, TILE_AIR);
+ tile_t *tile = game->tiles[idx];
+ // generate tile types
+ switch (c) {
+ case 'x':
+ tile->type = TILE_STONE;
+ break;
+ case 'g':
+ tile->type = TILE_GRASS;
+ break;
+ case '-':
+ tile->type = TILE_WOOD_PLATFORM;
+ break;
+ case 't':
+ tile->type = TILE_STONE_JOINT;
+ break;
+ case 'w':
+ tile->type = TILE_STONE_WALL;
+ break;
+ case 'i':
+ tile->type = TILE_SNOW;
+ break;
+ case 'n':
+ tile->type = TILE_SAND;
+ break;
+ default:
+ break;
+ }
+ // spawn entities
+ switch (c) {
+ case 'p': {
+ game->player = player_create((pos_t) {
+ .x = x * TILE_WIDTH + (TILE_WIDTH - PLAYER_WIDTH) / 2.0,
+ .y = y * TILE_HEIGHT + TILE_HEIGHT - PLAYER_HEIGHT,
+ });
+ break;
+ }
+ case 'e': {
+ game->entities = realloc(game->entities, sizeof(enemy_t) * (game->entities_len + 1));
+ enemy_t *enemy = enemy_create((pos_t) {
+ .x = x * TILE_WIDTH + (TILE_WIDTH - ENEMY_WIDTH) / 2.0,
+ .y = y * TILE_HEIGHT + TILE_HEIGHT - ENEMY_HEIGHT,
+ }, ENEMY_TEST);
+ game->entities[game->entities_len] = (entity_t) {
+ .type = ENTITY_ENEMY,
+ .enemy = enemy,
+ };
+ game->entities_len++;
+ break;
+ }
+ case 's': {
+ game->entities = realloc(game->entities, sizeof(enemy_t) * (game->entities_len + 1));
+ gate_t *gate = gate_create((pos_t) {
+ .x = x * TILE_WIDTH + (TILE_WIDTH - ENEMY_WIDTH) / 2.0,
+ .y = y * TILE_HEIGHT,
+ }, 5, 500);
+ game->entities[game->entities_len] = (entity_t) {
+ .type = ENTITY_GATE,
+ .gate = gate,
+ };
+ game->entities_len++;
+ break;
+ }
+ default:
+ break;
+ }
+ }
+ }
+}
+
+void level_load(game_t *game, level_e type) {
+ level_t *level = malloc(sizeof(level_t));
+ level->type = type;
+ switch (type) {
+ case LEVEL_NULL:
+ break;
+ case LEVEL_1: {
+ level_generate(game, LEVEL_MAP_1, 24, 16);
+ level->width = 24;
+ level->height = 16;
+ break;
+ }
+ case LEVEL_2: {
+ level_generate(game, LEVEL_MAP_2, 24, 16);
+ level->width = 24;
+ level->height = 16;
+ break;
+ }
+ case LEVEL_3: {
+ level_generate(game, LEVEL_MAP_3, 40, 30);
+ level->width = 40;
+ level->height = 30;
+ break;
+ }
+ }
+ game->level = level;
+}
+
+void level_unload(game_t *game) {
+ player_free(game->player);
+ for (int i = 0; i < game->tiles_len; i++) {
+ tile_free(game->tiles[i]);
+ }
+ free(game->tiles);
+ for (int i = 0; i < game->entities_len; i++) {
+ entity_detach(&game->entities[i]);
+ }
+ free(game->entities);
+ for (int i = 0; i < game->effects_len; i++) {
+ effect_free(game->effects[i]);
+ }
+ free(game->effects);
+ free(game->level);
+}
diff --git a/src/level.h b/src/level.h
@@ -0,0 +1,23 @@
+#pragma once
+
+#define LEVELS 3
+
+typedef struct Level level_t;
+
+typedef enum {
+ LEVEL_NULL,
+ LEVEL_1,
+ LEVEL_2,
+ LEVEL_3,
+} level_e;
+
+#include "game.h"
+
+struct Level {
+ level_e type;
+ int width;
+ int height;
+};
+
+void level_load(game_t *game, level_e type);
+void level_unload(game_t *game);
diff --git a/src/libs/raylib.h b/src/libs/raylib.h
@@ -0,0 +1,1673 @@
+/**********************************************************************************************
+*
+* raylib v5.1-dev - A simple and easy-to-use library to enjoy videogames programming (www.raylib.com)
+*
+* FEATURES:
+* - NO external dependencies, all required libraries included with raylib
+* - Multiplatform: Windows, Linux, FreeBSD, OpenBSD, NetBSD, DragonFly,
+* MacOS, Haiku, Android, Raspberry Pi, DRM native, HTML5.
+* - Written in plain C code (C99) in PascalCase/camelCase notation
+* - Hardware accelerated with OpenGL (1.1, 2.1, 3.3, 4.3 or ES2 - choose at compile)
+* - Unique OpenGL abstraction layer (usable as standalone module): [rlgl]
+* - Multiple Fonts formats supported (TTF, XNA fonts, AngelCode fonts)
+* - Outstanding texture formats support, including compressed formats (DXT, ETC, ASTC)
+* - Full 3d support for 3d Shapes, Models, Billboards, Heightmaps and more!
+* - Flexible Materials system, supporting classic maps and PBR maps
+* - Animated 3D models supported (skeletal bones animation) (IQM)
+* - Shaders support, including Model shaders and Postprocessing shaders
+* - Powerful math module for Vector, Matrix and Quaternion operations: [raymath]
+* - Audio loading and playing with streaming support (WAV, OGG, MP3, FLAC, XM, MOD)
+* - VR stereo rendering with configurable HMD device parameters
+* - Bindings to multiple programming languages available!
+*
+* NOTES:
+* - One default Font is loaded on InitWindow()->LoadFontDefault() [core, text]
+* - One default Texture2D is loaded on rlglInit(), 1x1 white pixel R8G8B8A8 [rlgl] (OpenGL 3.3 or ES2)
+* - One default Shader is loaded on rlglInit()->rlLoadShaderDefault() [rlgl] (OpenGL 3.3 or ES2)
+* - One default RenderBatch is loaded on rlglInit()->rlLoadRenderBatch() [rlgl] (OpenGL 3.3 or ES2)
+*
+* DEPENDENCIES (included):
+* [rcore] rglfw (Camilla Löwy - github.com/glfw/glfw) for window/context management and input (PLATFORM_DESKTOP)
+* [rlgl] glad (David Herberth - github.com/Dav1dde/glad) for OpenGL 3.3 extensions loading (PLATFORM_DESKTOP)
+* [raudio] miniaudio (David Reid - github.com/mackron/miniaudio) for audio device/context management
+*
+* OPTIONAL DEPENDENCIES (included):
+* [rcore] msf_gif (Miles Fogle) for GIF recording
+* [rcore] sinfl (Micha Mettke) for DEFLATE decompression algorithm
+* [rcore] sdefl (Micha Mettke) for DEFLATE compression algorithm
+* [rtextures] stb_image (Sean Barret) for images loading (BMP, TGA, PNG, JPEG, HDR...)
+* [rtextures] stb_image_write (Sean Barret) for image writing (BMP, TGA, PNG, JPG)
+* [rtextures] stb_image_resize (Sean Barret) for image resizing algorithms
+* [rtext] stb_truetype (Sean Barret) for ttf fonts loading
+* [rtext] stb_rect_pack (Sean Barret) for rectangles packing
+* [rmodels] par_shapes (Philip Rideout) for parametric 3d shapes generation
+* [rmodels] tinyobj_loader_c (Syoyo Fujita) for models loading (OBJ, MTL)
+* [rmodels] cgltf (Johannes Kuhlmann) for models loading (glTF)
+* [rmodels] Model3D (bzt) for models loading (M3D, https://bztsrc.gitlab.io/model3d)
+* [raudio] dr_wav (David Reid) for WAV audio file loading
+* [raudio] dr_flac (David Reid) for FLAC audio file loading
+* [raudio] dr_mp3 (David Reid) for MP3 audio file loading
+* [raudio] stb_vorbis (Sean Barret) for OGG audio loading
+* [raudio] jar_xm (Joshua Reisenauer) for XM audio module loading
+* [raudio] jar_mod (Joshua Reisenauer) for MOD audio module loading
+*
+*
+* LICENSE: zlib/libpng
+*
+* raylib is licensed under an unmodified zlib/libpng license, which is an OSI-certified,
+* BSD-like license that allows static linking with closed source software:
+*
+* Copyright (c) 2013-2024 Ramon Santamaria (@raysan5)
+*
+* This software is provided "as-is", without any express or implied warranty. In no event
+* will the authors be held liable for any damages arising from the use of this software.
+*
+* Permission is granted to anyone to use this software for any purpose, including commercial
+* applications, and to alter it and redistribute it freely, subject to the following restrictions:
+*
+* 1. The origin of this software must not be misrepresented; you must not claim that you
+* wrote the original software. If you use this software in a product, an acknowledgment
+* in the product documentation would be appreciated but is not required.
+*
+* 2. Altered source versions must be plainly marked as such, and must not be misrepresented
+* as being the original software.
+*
+* 3. This notice may not be removed or altered from any source distribution.
+*
+**********************************************************************************************/
+
+#ifndef RAYLIB_H
+#define RAYLIB_H
+
+#include <stdarg.h> // Required for: va_list - Only used by TraceLogCallback
+
+#define RAYLIB_VERSION_MAJOR 5
+#define RAYLIB_VERSION_MINOR 1
+#define RAYLIB_VERSION_PATCH 0
+#define RAYLIB_VERSION "5.1-dev"
+
+// Function specifiers in case library is build/used as a shared library
+// NOTE: Microsoft specifiers to tell compiler that symbols are imported/exported from a .dll
+// NOTE: visibility("default") attribute makes symbols "visible" when compiled with -fvisibility=hidden
+#if defined(_WIN32)
+ #if defined(__TINYC__)
+ #define __declspec(x) __attribute__((x))
+ #endif
+ #if defined(BUILD_LIBTYPE_SHARED)
+ #define RLAPI __declspec(dllexport) // We are building the library as a Win32 shared library (.dll)
+ #elif defined(USE_LIBTYPE_SHARED)
+ #define RLAPI __declspec(dllimport) // We are using the library as a Win32 shared library (.dll)
+ #endif
+#else
+ #if defined(BUILD_LIBTYPE_SHARED)
+ #define RLAPI __attribute__((visibility("default"))) // We are building as a Unix shared library (.so/.dylib)
+ #endif
+#endif
+
+#ifndef RLAPI
+ #define RLAPI // Functions defined as 'extern' by default (implicit specifiers)
+#endif
+
+//----------------------------------------------------------------------------------
+// Some basic Defines
+//----------------------------------------------------------------------------------
+#ifndef PI
+ #define PI 3.14159265358979323846f
+#endif
+#ifndef DEG2RAD
+ #define DEG2RAD (PI/180.0f)
+#endif
+#ifndef RAD2DEG
+ #define RAD2DEG (180.0f/PI)
+#endif
+
+// Allow custom memory allocators
+// NOTE: Require recompiling raylib sources
+#ifndef RL_MALLOC
+ #define RL_MALLOC(sz) malloc(sz)
+#endif
+#ifndef RL_CALLOC
+ #define RL_CALLOC(n,sz) calloc(n,sz)
+#endif
+#ifndef RL_REALLOC
+ #define RL_REALLOC(ptr,sz) realloc(ptr,sz)
+#endif
+#ifndef RL_FREE
+ #define RL_FREE(ptr) free(ptr)
+#endif
+
+// NOTE: MSVC C++ compiler does not support compound literals (C99 feature)
+// Plain structures in C++ (without constructors) can be initialized with { }
+// This is called aggregate initialization (C++11 feature)
+#if defined(__cplusplus)
+ #define CLITERAL(type) type
+#else
+ #define CLITERAL(type) (type)
+#endif
+
+// Some compilers (mostly macos clang) default to C++98,
+// where aggregate initialization can't be used
+// So, give a more clear error stating how to fix this
+// #if !defined(_MSC_VER) && (defined(__cplusplus) && __cplusplus < 201103L)
+// #error "C++11 or later is required. Add -std=c++11"
+// #endif
+
+// NOTE: We set some defines with some data types declared by raylib
+// Other modules (raymath, rlgl) also require some of those types, so,
+// to be able to use those other modules as standalone (not depending on raylib)
+// this defines are very useful for internal check and avoid type (re)definitions
+#define RL_COLOR_TYPE
+#define RL_RECTANGLE_TYPE
+#define RL_VECTOR2_TYPE
+#define RL_VECTOR3_TYPE
+#define RL_VECTOR4_TYPE
+#define RL_QUATERNION_TYPE
+#define RL_MATRIX_TYPE
+
+// Some Basic Colors
+// NOTE: Custom raylib color palette for amazing visuals on WHITE background
+#define LIGHTGRAY CLITERAL(Color){ 200, 200, 200, 255 } // Light Gray
+#define GRAY CLITERAL(Color){ 130, 130, 130, 255 } // Gray
+#define DARKGRAY CLITERAL(Color){ 80, 80, 80, 255 } // Dark Gray
+#define YELLOW CLITERAL(Color){ 253, 249, 0, 255 } // Yellow
+#define GOLD CLITERAL(Color){ 255, 203, 0, 255 } // Gold
+#define ORANGE CLITERAL(Color){ 255, 161, 0, 255 } // Orange
+#define PINK CLITERAL(Color){ 255, 109, 194, 255 } // Pink
+#define RED CLITERAL(Color){ 230, 41, 55, 255 } // Red
+#define MAROON CLITERAL(Color){ 190, 33, 55, 255 } // Maroon
+#define GREEN CLITERAL(Color){ 0, 228, 48, 255 } // Green
+#define LIME CLITERAL(Color){ 0, 158, 47, 255 } // Lime
+#define DARKGREEN CLITERAL(Color){ 0, 117, 44, 255 } // Dark Green
+#define SKYBLUE CLITERAL(Color){ 102, 191, 255, 255 } // Sky Blue
+#define BLUE CLITERAL(Color){ 0, 121, 241, 255 } // Blue
+#define DARKBLUE CLITERAL(Color){ 0, 82, 172, 255 } // Dark Blue
+#define PURPLE CLITERAL(Color){ 200, 122, 255, 255 } // Purple
+#define VIOLET CLITERAL(Color){ 135, 60, 190, 255 } // Violet
+#define DARKPURPLE CLITERAL(Color){ 112, 31, 126, 255 } // Dark Purple
+#define BEIGE CLITERAL(Color){ 211, 176, 131, 255 } // Beige
+#define BROWN CLITERAL(Color){ 127, 106, 79, 255 } // Brown
+#define DARKBROWN CLITERAL(Color){ 76, 63, 47, 255 } // Dark Brown
+
+#define WHITE CLITERAL(Color){ 255, 255, 255, 255 } // White
+#define BLACK CLITERAL(Color){ 0, 0, 0, 255 } // Black
+#define BLANK CLITERAL(Color){ 0, 0, 0, 0 } // Blank (Transparent)
+#define MAGENTA CLITERAL(Color){ 255, 0, 255, 255 } // Magenta
+#define RAYWHITE CLITERAL(Color){ 245, 245, 245, 255 } // My own White (raylib logo)
+
+//----------------------------------------------------------------------------------
+// Structures Definition
+//----------------------------------------------------------------------------------
+// Boolean type
+#if (defined(__STDC__) && __STDC_VERSION__ >= 199901L) || (defined(_MSC_VER) && _MSC_VER >= 1800)
+ #include <stdbool.h>
+#elif !defined(__cplusplus) && !defined(bool)
+ typedef enum bool { false = 0, true = !false } bool;
+ #define RL_BOOL_TYPE
+#endif
+
+// Vector2, 2 components
+typedef struct Vector2 {
+ float x; // Vector x component
+ float y; // Vector y component
+} Vector2;
+
+// Vector3, 3 components
+typedef struct Vector3 {
+ float x; // Vector x component
+ float y; // Vector y component
+ float z; // Vector z component
+} Vector3;
+
+// Vector4, 4 components
+typedef struct Vector4 {
+ float x; // Vector x component
+ float y; // Vector y component
+ float z; // Vector z component
+ float w; // Vector w component
+} Vector4;
+
+// Quaternion, 4 components (Vector4 alias)
+typedef Vector4 Quaternion;
+
+// Matrix, 4x4 components, column major, OpenGL style, right-handed
+typedef struct Matrix {
+ float m0, m4, m8, m12; // Matrix first row (4 components)
+ float m1, m5, m9, m13; // Matrix second row (4 components)
+ float m2, m6, m10, m14; // Matrix third row (4 components)
+ float m3, m7, m11, m15; // Matrix fourth row (4 components)
+} Matrix;
+
+// Color, 4 components, R8G8B8A8 (32bit)
+typedef struct Color {
+ unsigned char r; // Color red value
+ unsigned char g; // Color green value
+ unsigned char b; // Color blue value
+ unsigned char a; // Color alpha value
+} Color;
+
+// Rectangle, 4 components
+typedef struct Rectangle {
+ float x; // Rectangle top-left corner position x
+ float y; // Rectangle top-left corner position y
+ float width; // Rectangle width
+ float height; // Rectangle height
+} Rectangle;
+
+// Image, pixel data stored in CPU memory (RAM)
+typedef struct Image {
+ void *data; // Image raw data
+ int width; // Image base width
+ int height; // Image base height
+ int mipmaps; // Mipmap levels, 1 by default
+ int format; // Data format (PixelFormat type)
+} Image;
+
+// Texture, tex data stored in GPU memory (VRAM)
+typedef struct Texture {
+ unsigned int id; // OpenGL texture id
+ int width; // Texture base width
+ int height; // Texture base height
+ int mipmaps; // Mipmap levels, 1 by default
+ int format; // Data format (PixelFormat type)
+} Texture;
+
+// Texture2D, same as Texture
+typedef Texture Texture2D;
+
+// TextureCubemap, same as Texture
+typedef Texture TextureCubemap;
+
+// RenderTexture, fbo for texture rendering
+typedef struct RenderTexture {
+ unsigned int id; // OpenGL framebuffer object id
+ Texture texture; // Color buffer attachment texture
+ Texture depth; // Depth buffer attachment texture
+} RenderTexture;
+
+// RenderTexture2D, same as RenderTexture
+typedef RenderTexture RenderTexture2D;
+
+// NPatchInfo, n-patch layout info
+typedef struct NPatchInfo {
+ Rectangle source; // Texture source rectangle
+ int left; // Left border offset
+ int top; // Top border offset
+ int right; // Right border offset
+ int bottom; // Bottom border offset
+ int layout; // Layout of the n-patch: 3x3, 1x3 or 3x1
+} NPatchInfo;
+
+// GlyphInfo, font characters glyphs info
+typedef struct GlyphInfo {
+ int value; // Character value (Unicode)
+ int offsetX; // Character offset X when drawing
+ int offsetY; // Character offset Y when drawing
+ int advanceX; // Character advance position X
+ Image image; // Character image data
+} GlyphInfo;
+
+// Font, font texture and GlyphInfo array data
+typedef struct Font {
+ int baseSize; // Base size (default chars height)
+ int glyphCount; // Number of glyph characters
+ int glyphPadding; // Padding around the glyph characters
+ Texture2D texture; // Texture atlas containing the glyphs
+ Rectangle *recs; // Rectangles in texture for the glyphs
+ GlyphInfo *glyphs; // Glyphs info data
+} Font;
+
+// Camera, defines position/orientation in 3d space
+typedef struct Camera3D {
+ Vector3 position; // Camera position
+ Vector3 target; // Camera target it looks-at
+ Vector3 up; // Camera up vector (rotation over its axis)
+ float fovy; // Camera field-of-view aperture in Y (degrees) in perspective, used as near plane width in orthographic
+ int projection; // Camera projection: CAMERA_PERSPECTIVE or CAMERA_ORTHOGRAPHIC
+} Camera3D;
+
+typedef Camera3D Camera; // Camera type fallback, defaults to Camera3D
+
+// Camera2D, defines position/orientation in 2d space
+typedef struct Camera2D {
+ Vector2 offset; // Camera offset (displacement from target)
+ Vector2 target; // Camera target (rotation and zoom origin)
+ float rotation; // Camera rotation in degrees
+ float zoom; // Camera zoom (scaling), should be 1.0f by default
+} Camera2D;
+
+// Mesh, vertex data and vao/vbo
+typedef struct Mesh {
+ int vertexCount; // Number of vertices stored in arrays
+ int triangleCount; // Number of triangles stored (indexed or not)
+
+ // Vertex attributes data
+ float *vertices; // Vertex position (XYZ - 3 components per vertex) (shader-location = 0)
+ float *texcoords; // Vertex texture coordinates (UV - 2 components per vertex) (shader-location = 1)
+ float *texcoords2; // Vertex texture second coordinates (UV - 2 components per vertex) (shader-location = 5)
+ float *normals; // Vertex normals (XYZ - 3 components per vertex) (shader-location = 2)
+ float *tangents; // Vertex tangents (XYZW - 4 components per vertex) (shader-location = 4)
+ unsigned char *colors; // Vertex colors (RGBA - 4 components per vertex) (shader-location = 3)
+ unsigned short *indices; // Vertex indices (in case vertex data comes indexed)
+
+ // Animation vertex data
+ float *animVertices; // Animated vertex positions (after bones transformations)
+ float *animNormals; // Animated normals (after bones transformations)
+ unsigned char *boneIds; // Vertex bone ids, max 255 bone ids, up to 4 bones influence by vertex (skinning)
+ float *boneWeights; // Vertex bone weight, up to 4 bones influence by vertex (skinning)
+
+ // OpenGL identifiers
+ unsigned int vaoId; // OpenGL Vertex Array Object id
+ unsigned int *vboId; // OpenGL Vertex Buffer Objects id (default vertex data)
+} Mesh;
+
+// Shader
+typedef struct Shader {
+ unsigned int id; // Shader program id
+ int *locs; // Shader locations array (RL_MAX_SHADER_LOCATIONS)
+} Shader;
+
+// MaterialMap
+typedef struct MaterialMap {
+ Texture2D texture; // Material map texture
+ Color color; // Material map color
+ float value; // Material map value
+} MaterialMap;
+
+// Material, includes shader and maps
+typedef struct Material {
+ Shader shader; // Material shader
+ MaterialMap *maps; // Material maps array (MAX_MATERIAL_MAPS)
+ float params[4]; // Material generic parameters (if required)
+} Material;
+
+// Transform, vertex transformation data
+typedef struct Transform {
+ Vector3 translation; // Translation
+ Quaternion rotation; // Rotation
+ Vector3 scale; // Scale
+} Transform;
+
+// Bone, skeletal animation bone
+typedef struct BoneInfo {
+ char name[32]; // Bone name
+ int parent; // Bone parent
+} BoneInfo;
+
+// Model, meshes, materials and animation data
+typedef struct Model {
+ Matrix transform; // Local transform matrix
+
+ int meshCount; // Number of meshes
+ int materialCount; // Number of materials
+ Mesh *meshes; // Meshes array
+ Material *materials; // Materials array
+ int *meshMaterial; // Mesh material number
+
+ // Animation data
+ int boneCount; // Number of bones
+ BoneInfo *bones; // Bones information (skeleton)
+ Transform *bindPose; // Bones base transformation (pose)
+} Model;
+
+// ModelAnimation
+typedef struct ModelAnimation {
+ int boneCount; // Number of bones
+ int frameCount; // Number of animation frames
+ BoneInfo *bones; // Bones information (skeleton)
+ Transform **framePoses; // Poses array by frame
+ char name[32]; // Animation name
+} ModelAnimation;
+
+// Ray, ray for raycasting
+typedef struct Ray {
+ Vector3 position; // Ray position (origin)
+ Vector3 direction; // Ray direction
+} Ray;
+
+// RayCollision, ray hit information
+typedef struct RayCollision {
+ bool hit; // Did the ray hit something?
+ float distance; // Distance to the nearest hit
+ Vector3 point; // Point of the nearest hit
+ Vector3 normal; // Surface normal of hit
+} RayCollision;
+
+// BoundingBox
+typedef struct BoundingBox {
+ Vector3 min; // Minimum vertex box-corner
+ Vector3 max; // Maximum vertex box-corner
+} BoundingBox;
+
+// Wave, audio wave data
+typedef struct Wave {
+ unsigned int frameCount; // Total number of frames (considering channels)
+ unsigned int sampleRate; // Frequency (samples per second)
+ unsigned int sampleSize; // Bit depth (bits per sample): 8, 16, 32 (24 not supported)
+ unsigned int channels; // Number of channels (1-mono, 2-stereo, ...)
+ void *data; // Buffer data pointer
+} Wave;
+
+// Opaque structs declaration
+// NOTE: Actual structs are defined internally in raudio module
+typedef struct rAudioBuffer rAudioBuffer;
+typedef struct rAudioProcessor rAudioProcessor;
+
+// AudioStream, custom audio stream
+typedef struct AudioStream {
+ rAudioBuffer *buffer; // Pointer to internal data used by the audio system
+ rAudioProcessor *processor; // Pointer to internal data processor, useful for audio effects
+
+ unsigned int sampleRate; // Frequency (samples per second)
+ unsigned int sampleSize; // Bit depth (bits per sample): 8, 16, 32 (24 not supported)
+ unsigned int channels; // Number of channels (1-mono, 2-stereo, ...)
+} AudioStream;
+
+// Sound
+typedef struct Sound {
+ AudioStream stream; // Audio stream
+ unsigned int frameCount; // Total number of frames (considering channels)
+} Sound;
+
+// Music, audio stream, anything longer than ~10 seconds should be streamed
+typedef struct Music {
+ AudioStream stream; // Audio stream
+ unsigned int frameCount; // Total number of frames (considering channels)
+ bool looping; // Music looping enable
+
+ int ctxType; // Type of music context (audio filetype)
+ void *ctxData; // Audio context data, depends on type
+} Music;
+
+// VrDeviceInfo, Head-Mounted-Display device parameters
+typedef struct VrDeviceInfo {
+ int hResolution; // Horizontal resolution in pixels
+ int vResolution; // Vertical resolution in pixels
+ float hScreenSize; // Horizontal size in meters
+ float vScreenSize; // Vertical size in meters
+ float eyeToScreenDistance; // Distance between eye and display in meters
+ float lensSeparationDistance; // Lens separation distance in meters
+ float interpupillaryDistance; // IPD (distance between pupils) in meters
+ float lensDistortionValues[4]; // Lens distortion constant parameters
+ float chromaAbCorrection[4]; // Chromatic aberration correction parameters
+} VrDeviceInfo;
+
+// VrStereoConfig, VR stereo rendering configuration for simulator
+typedef struct VrStereoConfig {
+ Matrix projection[2]; // VR projection matrices (per eye)
+ Matrix viewOffset[2]; // VR view offset matrices (per eye)
+ float leftLensCenter[2]; // VR left lens center
+ float rightLensCenter[2]; // VR right lens center
+ float leftScreenCenter[2]; // VR left screen center
+ float rightScreenCenter[2]; // VR right screen center
+ float scale[2]; // VR distortion scale
+ float scaleIn[2]; // VR distortion scale in
+} VrStereoConfig;
+
+// File path list
+typedef struct FilePathList {
+ unsigned int capacity; // Filepaths max entries
+ unsigned int count; // Filepaths entries count
+ char **paths; // Filepaths entries
+} FilePathList;
+
+// Automation event
+typedef struct AutomationEvent {
+ unsigned int frame; // Event frame
+ unsigned int type; // Event type (AutomationEventType)
+ int params[4]; // Event parameters (if required)
+} AutomationEvent;
+
+// Automation event list
+typedef struct AutomationEventList {
+ unsigned int capacity; // Events max entries (MAX_AUTOMATION_EVENTS)
+ unsigned int count; // Events entries count
+ AutomationEvent *events; // Events entries
+} AutomationEventList;
+
+//----------------------------------------------------------------------------------
+// Enumerators Definition
+//----------------------------------------------------------------------------------
+// System/Window config flags
+// NOTE: Every bit registers one state (use it with bit masks)
+// By default all flags are set to 0
+typedef enum {
+ FLAG_VSYNC_HINT = 0x00000040, // Set to try enabling V-Sync on GPU
+ FLAG_FULLSCREEN_MODE = 0x00000002, // Set to run program in fullscreen
+ FLAG_WINDOW_RESIZABLE = 0x00000004, // Set to allow resizable window
+ FLAG_WINDOW_UNDECORATED = 0x00000008, // Set to disable window decoration (frame and buttons)
+ FLAG_WINDOW_HIDDEN = 0x00000080, // Set to hide window
+ FLAG_WINDOW_MINIMIZED = 0x00000200, // Set to minimize window (iconify)
+ FLAG_WINDOW_MAXIMIZED = 0x00000400, // Set to maximize window (expanded to monitor)
+ FLAG_WINDOW_UNFOCUSED = 0x00000800, // Set to window non focused
+ FLAG_WINDOW_TOPMOST = 0x00001000, // Set to window always on top
+ FLAG_WINDOW_ALWAYS_RUN = 0x00000100, // Set to allow windows running while minimized
+ FLAG_WINDOW_TRANSPARENT = 0x00000010, // Set to allow transparent framebuffer
+ FLAG_WINDOW_HIGHDPI = 0x00002000, // Set to support HighDPI
+ FLAG_WINDOW_MOUSE_PASSTHROUGH = 0x00004000, // Set to support mouse passthrough, only supported when FLAG_WINDOW_UNDECORATED
+ FLAG_BORDERLESS_WINDOWED_MODE = 0x00008000, // Set to run program in borderless windowed mode
+ FLAG_MSAA_4X_HINT = 0x00000020, // Set to try enabling MSAA 4X
+ FLAG_INTERLACED_HINT = 0x00010000 // Set to try enabling interlaced video format (for V3D)
+} ConfigFlags;
+
+// Trace log level
+// NOTE: Organized by priority level
+typedef enum {
+ LOG_ALL = 0, // Display all logs
+ LOG_TRACE, // Trace logging, intended for internal use only
+ LOG_DEBUG, // Debug logging, used for internal debugging, it should be disabled on release builds
+ LOG_INFO, // Info logging, used for program execution info
+ LOG_WARNING, // Warning logging, used on recoverable failures
+ LOG_ERROR, // Error logging, used on unrecoverable failures
+ LOG_FATAL, // Fatal logging, used to abort program: exit(EXIT_FAILURE)
+ LOG_NONE // Disable logging
+} TraceLogLevel;
+
+// Keyboard keys (US keyboard layout)
+// NOTE: Use GetKeyPressed() to allow redefining
+// required keys for alternative layouts
+typedef enum {
+ KEY_NULL = 0, // Key: NULL, used for no key pressed
+ // Alphanumeric keys
+ KEY_APOSTROPHE = 39, // Key: '
+ KEY_COMMA = 44, // Key: ,
+ KEY_MINUS = 45, // Key: -
+ KEY_PERIOD = 46, // Key: .
+ KEY_SLASH = 47, // Key: /
+ KEY_ZERO = 48, // Key: 0
+ KEY_ONE = 49, // Key: 1
+ KEY_TWO = 50, // Key: 2
+ KEY_THREE = 51, // Key: 3
+ KEY_FOUR = 52, // Key: 4
+ KEY_FIVE = 53, // Key: 5
+ KEY_SIX = 54, // Key: 6
+ KEY_SEVEN = 55, // Key: 7
+ KEY_EIGHT = 56, // Key: 8
+ KEY_NINE = 57, // Key: 9
+ KEY_SEMICOLON = 59, // Key: ;
+ KEY_EQUAL = 61, // Key: =
+ KEY_A = 65, // Key: A | a
+ KEY_B = 66, // Key: B | b
+ KEY_C = 67, // Key: C | c
+ KEY_D = 68, // Key: D | d
+ KEY_E = 69, // Key: E | e
+ KEY_F = 70, // Key: F | f
+ KEY_G = 71, // Key: G | g
+ KEY_H = 72, // Key: H | h
+ KEY_I = 73, // Key: I | i
+ KEY_J = 74, // Key: J | j
+ KEY_K = 75, // Key: K | k
+ KEY_L = 76, // Key: L | l
+ KEY_M = 77, // Key: M | m
+ KEY_N = 78, // Key: N | n
+ KEY_O = 79, // Key: O | o
+ KEY_P = 80, // Key: P | p
+ KEY_Q = 81, // Key: Q | q
+ KEY_R = 82, // Key: R | r
+ KEY_S = 83, // Key: S | s
+ KEY_T = 84, // Key: T | t
+ KEY_U = 85, // Key: U | u
+ KEY_V = 86, // Key: V | v
+ KEY_W = 87, // Key: W | w
+ KEY_X = 88, // Key: X | x
+ KEY_Y = 89, // Key: Y | y
+ KEY_Z = 90, // Key: Z | z
+ KEY_LEFT_BRACKET = 91, // Key: [
+ KEY_BACKSLASH = 92, // Key: '\'
+ KEY_RIGHT_BRACKET = 93, // Key: ]
+ KEY_GRAVE = 96, // Key: `
+ // Function keys
+ KEY_SPACE = 32, // Key: Space
+ KEY_ESCAPE = 256, // Key: Esc
+ KEY_ENTER = 257, // Key: Enter
+ KEY_TAB = 258, // Key: Tab
+ KEY_BACKSPACE = 259, // Key: Backspace
+ KEY_INSERT = 260, // Key: Ins
+ KEY_DELETE = 261, // Key: Del
+ KEY_RIGHT = 262, // Key: Cursor right
+ KEY_LEFT = 263, // Key: Cursor left
+ KEY_DOWN = 264, // Key: Cursor down
+ KEY_UP = 265, // Key: Cursor up
+ KEY_PAGE_UP = 266, // Key: Page up
+ KEY_PAGE_DOWN = 267, // Key: Page down
+ KEY_HOME = 268, // Key: Home
+ KEY_END = 269, // Key: End
+ KEY_CAPS_LOCK = 280, // Key: Caps lock
+ KEY_SCROLL_LOCK = 281, // Key: Scroll down
+ KEY_NUM_LOCK = 282, // Key: Num lock
+ KEY_PRINT_SCREEN = 283, // Key: Print screen
+ KEY_PAUSE = 284, // Key: Pause
+ KEY_F1 = 290, // Key: F1
+ KEY_F2 = 291, // Key: F2
+ KEY_F3 = 292, // Key: F3
+ KEY_F4 = 293, // Key: F4
+ KEY_F5 = 294, // Key: F5
+ KEY_F6 = 295, // Key: F6
+ KEY_F7 = 296, // Key: F7
+ KEY_F8 = 297, // Key: F8
+ KEY_F9 = 298, // Key: F9
+ KEY_F10 = 299, // Key: F10
+ KEY_F11 = 300, // Key: F11
+ KEY_F12 = 301, // Key: F12
+ KEY_LEFT_SHIFT = 340, // Key: Shift left
+ KEY_LEFT_CONTROL = 341, // Key: Control left
+ KEY_LEFT_ALT = 342, // Key: Alt left
+ KEY_LEFT_SUPER = 343, // Key: Super left
+ KEY_RIGHT_SHIFT = 344, // Key: Shift right
+ KEY_RIGHT_CONTROL = 345, // Key: Control right
+ KEY_RIGHT_ALT = 346, // Key: Alt right
+ KEY_RIGHT_SUPER = 347, // Key: Super right
+ KEY_KB_MENU = 348, // Key: KB menu
+ // Keypad keys
+ KEY_KP_0 = 320, // Key: Keypad 0
+ KEY_KP_1 = 321, // Key: Keypad 1
+ KEY_KP_2 = 322, // Key: Keypad 2
+ KEY_KP_3 = 323, // Key: Keypad 3
+ KEY_KP_4 = 324, // Key: Keypad 4
+ KEY_KP_5 = 325, // Key: Keypad 5
+ KEY_KP_6 = 326, // Key: Keypad 6
+ KEY_KP_7 = 327, // Key: Keypad 7
+ KEY_KP_8 = 328, // Key: Keypad 8
+ KEY_KP_9 = 329, // Key: Keypad 9
+ KEY_KP_DECIMAL = 330, // Key: Keypad .
+ KEY_KP_DIVIDE = 331, // Key: Keypad /
+ KEY_KP_MULTIPLY = 332, // Key: Keypad *
+ KEY_KP_SUBTRACT = 333, // Key: Keypad -
+ KEY_KP_ADD = 334, // Key: Keypad +
+ KEY_KP_ENTER = 335, // Key: Keypad Enter
+ KEY_KP_EQUAL = 336, // Key: Keypad =
+ // Android key buttons
+ KEY_BACK = 4, // Key: Android back button
+ KEY_MENU = 5, // Key: Android menu button
+ KEY_VOLUME_UP = 24, // Key: Android volume up button
+ KEY_VOLUME_DOWN = 25 // Key: Android volume down button
+} KeyboardKey;
+
+// Add backwards compatibility support for deprecated names
+#define MOUSE_LEFT_BUTTON MOUSE_BUTTON_LEFT
+#define MOUSE_RIGHT_BUTTON MOUSE_BUTTON_RIGHT
+#define MOUSE_MIDDLE_BUTTON MOUSE_BUTTON_MIDDLE
+
+// Mouse buttons
+typedef enum {
+ MOUSE_BUTTON_LEFT = 0, // Mouse button left
+ MOUSE_BUTTON_RIGHT = 1, // Mouse button right
+ MOUSE_BUTTON_MIDDLE = 2, // Mouse button middle (pressed wheel)
+ MOUSE_BUTTON_SIDE = 3, // Mouse button side (advanced mouse device)
+ MOUSE_BUTTON_EXTRA = 4, // Mouse button extra (advanced mouse device)
+ MOUSE_BUTTON_FORWARD = 5, // Mouse button forward (advanced mouse device)
+ MOUSE_BUTTON_BACK = 6, // Mouse button back (advanced mouse device)
+} MouseButton;
+
+// Mouse cursor
+typedef enum {
+ MOUSE_CURSOR_DEFAULT = 0, // Default pointer shape
+ MOUSE_CURSOR_ARROW = 1, // Arrow shape
+ MOUSE_CURSOR_IBEAM = 2, // Text writing cursor shape
+ MOUSE_CURSOR_CROSSHAIR = 3, // Cross shape
+ MOUSE_CURSOR_POINTING_HAND = 4, // Pointing hand cursor
+ MOUSE_CURSOR_RESIZE_EW = 5, // Horizontal resize/move arrow shape
+ MOUSE_CURSOR_RESIZE_NS = 6, // Vertical resize/move arrow shape
+ MOUSE_CURSOR_RESIZE_NWSE = 7, // Top-left to bottom-right diagonal resize/move arrow shape
+ MOUSE_CURSOR_RESIZE_NESW = 8, // The top-right to bottom-left diagonal resize/move arrow shape
+ MOUSE_CURSOR_RESIZE_ALL = 9, // The omnidirectional resize/move cursor shape
+ MOUSE_CURSOR_NOT_ALLOWED = 10 // The operation-not-allowed shape
+} MouseCursor;
+
+// Gamepad buttons
+typedef enum {
+ GAMEPAD_BUTTON_UNKNOWN = 0, // Unknown button, just for error checking
+ GAMEPAD_BUTTON_LEFT_FACE_UP, // Gamepad left DPAD up button
+ GAMEPAD_BUTTON_LEFT_FACE_RIGHT, // Gamepad left DPAD right button
+ GAMEPAD_BUTTON_LEFT_FACE_DOWN, // Gamepad left DPAD down button
+ GAMEPAD_BUTTON_LEFT_FACE_LEFT, // Gamepad left DPAD left button
+ GAMEPAD_BUTTON_RIGHT_FACE_UP, // Gamepad right button up (i.e. PS3: Triangle, Xbox: Y)
+ GAMEPAD_BUTTON_RIGHT_FACE_RIGHT, // Gamepad right button right (i.e. PS3: Square, Xbox: X)
+ GAMEPAD_BUTTON_RIGHT_FACE_DOWN, // Gamepad right button down (i.e. PS3: Cross, Xbox: A)
+ GAMEPAD_BUTTON_RIGHT_FACE_LEFT, // Gamepad right button left (i.e. PS3: Circle, Xbox: B)
+ GAMEPAD_BUTTON_LEFT_TRIGGER_1, // Gamepad top/back trigger left (first), it could be a trailing button
+ GAMEPAD_BUTTON_LEFT_TRIGGER_2, // Gamepad top/back trigger left (second), it could be a trailing button
+ GAMEPAD_BUTTON_RIGHT_TRIGGER_1, // Gamepad top/back trigger right (one), it could be a trailing button
+ GAMEPAD_BUTTON_RIGHT_TRIGGER_2, // Gamepad top/back trigger right (second), it could be a trailing button
+ GAMEPAD_BUTTON_MIDDLE_LEFT, // Gamepad center buttons, left one (i.e. PS3: Select)
+ GAMEPAD_BUTTON_MIDDLE, // Gamepad center buttons, middle one (i.e. PS3: PS, Xbox: XBOX)
+ GAMEPAD_BUTTON_MIDDLE_RIGHT, // Gamepad center buttons, right one (i.e. PS3: Start)
+ GAMEPAD_BUTTON_LEFT_THUMB, // Gamepad joystick pressed button left
+ GAMEPAD_BUTTON_RIGHT_THUMB // Gamepad joystick pressed button right
+} GamepadButton;
+
+// Gamepad axis
+typedef enum {
+ GAMEPAD_AXIS_LEFT_X = 0, // Gamepad left stick X axis
+ GAMEPAD_AXIS_LEFT_Y = 1, // Gamepad left stick Y axis
+ GAMEPAD_AXIS_RIGHT_X = 2, // Gamepad right stick X axis
+ GAMEPAD_AXIS_RIGHT_Y = 3, // Gamepad right stick Y axis
+ GAMEPAD_AXIS_LEFT_TRIGGER = 4, // Gamepad back trigger left, pressure level: [1..-1]
+ GAMEPAD_AXIS_RIGHT_TRIGGER = 5 // Gamepad back trigger right, pressure level: [1..-1]
+} GamepadAxis;
+
+// Material map index
+typedef enum {
+ MATERIAL_MAP_ALBEDO = 0, // Albedo material (same as: MATERIAL_MAP_DIFFUSE)
+ MATERIAL_MAP_METALNESS, // Metalness material (same as: MATERIAL_MAP_SPECULAR)
+ MATERIAL_MAP_NORMAL, // Normal material
+ MATERIAL_MAP_ROUGHNESS, // Roughness material
+ MATERIAL_MAP_OCCLUSION, // Ambient occlusion material
+ MATERIAL_MAP_EMISSION, // Emission material
+ MATERIAL_MAP_HEIGHT, // Heightmap material
+ MATERIAL_MAP_CUBEMAP, // Cubemap material (NOTE: Uses GL_TEXTURE_CUBE_MAP)
+ MATERIAL_MAP_IRRADIANCE, // Irradiance material (NOTE: Uses GL_TEXTURE_CUBE_MAP)
+ MATERIAL_MAP_PREFILTER, // Prefilter material (NOTE: Uses GL_TEXTURE_CUBE_MAP)
+ MATERIAL_MAP_BRDF // Brdf material
+} MaterialMapIndex;
+
+#define MATERIAL_MAP_DIFFUSE MATERIAL_MAP_ALBEDO
+#define MATERIAL_MAP_SPECULAR MATERIAL_MAP_METALNESS
+
+// Shader location index
+typedef enum {
+ SHADER_LOC_VERTEX_POSITION = 0, // Shader location: vertex attribute: position
+ SHADER_LOC_VERTEX_TEXCOORD01, // Shader location: vertex attribute: texcoord01
+ SHADER_LOC_VERTEX_TEXCOORD02, // Shader location: vertex attribute: texcoord02
+ SHADER_LOC_VERTEX_NORMAL, // Shader location: vertex attribute: normal
+ SHADER_LOC_VERTEX_TANGENT, // Shader location: vertex attribute: tangent
+ SHADER_LOC_VERTEX_COLOR, // Shader location: vertex attribute: color
+ SHADER_LOC_MATRIX_MVP, // Shader location: matrix uniform: model-view-projection
+ SHADER_LOC_MATRIX_VIEW, // Shader location: matrix uniform: view (camera transform)
+ SHADER_LOC_MATRIX_PROJECTION, // Shader location: matrix uniform: projection
+ SHADER_LOC_MATRIX_MODEL, // Shader location: matrix uniform: model (transform)
+ SHADER_LOC_MATRIX_NORMAL, // Shader location: matrix uniform: normal
+ SHADER_LOC_VECTOR_VIEW, // Shader location: vector uniform: view
+ SHADER_LOC_COLOR_DIFFUSE, // Shader location: vector uniform: diffuse color
+ SHADER_LOC_COLOR_SPECULAR, // Shader location: vector uniform: specular color
+ SHADER_LOC_COLOR_AMBIENT, // Shader location: vector uniform: ambient color
+ SHADER_LOC_MAP_ALBEDO, // Shader location: sampler2d texture: albedo (same as: SHADER_LOC_MAP_DIFFUSE)
+ SHADER_LOC_MAP_METALNESS, // Shader location: sampler2d texture: metalness (same as: SHADER_LOC_MAP_SPECULAR)
+ SHADER_LOC_MAP_NORMAL, // Shader location: sampler2d texture: normal
+ SHADER_LOC_MAP_ROUGHNESS, // Shader location: sampler2d texture: roughness
+ SHADER_LOC_MAP_OCCLUSION, // Shader location: sampler2d texture: occlusion
+ SHADER_LOC_MAP_EMISSION, // Shader location: sampler2d texture: emission
+ SHADER_LOC_MAP_HEIGHT, // Shader location: sampler2d texture: height
+ SHADER_LOC_MAP_CUBEMAP, // Shader location: samplerCube texture: cubemap
+ SHADER_LOC_MAP_IRRADIANCE, // Shader location: samplerCube texture: irradiance
+ SHADER_LOC_MAP_PREFILTER, // Shader location: samplerCube texture: prefilter
+ SHADER_LOC_MAP_BRDF // Shader location: sampler2d texture: brdf
+} ShaderLocationIndex;
+
+#define SHADER_LOC_MAP_DIFFUSE SHADER_LOC_MAP_ALBEDO
+#define SHADER_LOC_MAP_SPECULAR SHADER_LOC_MAP_METALNESS
+
+// Shader uniform data type
+typedef enum {
+ SHADER_UNIFORM_FLOAT = 0, // Shader uniform type: float
+ SHADER_UNIFORM_VEC2, // Shader uniform type: vec2 (2 float)
+ SHADER_UNIFORM_VEC3, // Shader uniform type: vec3 (3 float)
+ SHADER_UNIFORM_VEC4, // Shader uniform type: vec4 (4 float)
+ SHADER_UNIFORM_INT, // Shader uniform type: int
+ SHADER_UNIFORM_IVEC2, // Shader uniform type: ivec2 (2 int)
+ SHADER_UNIFORM_IVEC3, // Shader uniform type: ivec3 (3 int)
+ SHADER_UNIFORM_IVEC4, // Shader uniform type: ivec4 (4 int)
+ SHADER_UNIFORM_SAMPLER2D // Shader uniform type: sampler2d
+} ShaderUniformDataType;
+
+// Shader attribute data types
+typedef enum {
+ SHADER_ATTRIB_FLOAT = 0, // Shader attribute type: float
+ SHADER_ATTRIB_VEC2, // Shader attribute type: vec2 (2 float)
+ SHADER_ATTRIB_VEC3, // Shader attribute type: vec3 (3 float)
+ SHADER_ATTRIB_VEC4 // Shader attribute type: vec4 (4 float)
+} ShaderAttributeDataType;
+
+// Pixel formats
+// NOTE: Support depends on OpenGL version and platform
+typedef enum {
+ PIXELFORMAT_UNCOMPRESSED_GRAYSCALE = 1, // 8 bit per pixel (no alpha)
+ PIXELFORMAT_UNCOMPRESSED_GRAY_ALPHA, // 8*2 bpp (2 channels)
+ PIXELFORMAT_UNCOMPRESSED_R5G6B5, // 16 bpp
+ PIXELFORMAT_UNCOMPRESSED_R8G8B8, // 24 bpp
+ PIXELFORMAT_UNCOMPRESSED_R5G5B5A1, // 16 bpp (1 bit alpha)
+ PIXELFORMAT_UNCOMPRESSED_R4G4B4A4, // 16 bpp (4 bit alpha)
+ PIXELFORMAT_UNCOMPRESSED_R8G8B8A8, // 32 bpp
+ PIXELFORMAT_UNCOMPRESSED_R32, // 32 bpp (1 channel - float)
+ PIXELFORMAT_UNCOMPRESSED_R32G32B32, // 32*3 bpp (3 channels - float)
+ PIXELFORMAT_UNCOMPRESSED_R32G32B32A32, // 32*4 bpp (4 channels - float)
+ PIXELFORMAT_UNCOMPRESSED_R16, // 16 bpp (1 channel - half float)
+ PIXELFORMAT_UNCOMPRESSED_R16G16B16, // 16*3 bpp (3 channels - half float)
+ PIXELFORMAT_UNCOMPRESSED_R16G16B16A16, // 16*4 bpp (4 channels - half float)
+ PIXELFORMAT_COMPRESSED_DXT1_RGB, // 4 bpp (no alpha)
+ PIXELFORMAT_COMPRESSED_DXT1_RGBA, // 4 bpp (1 bit alpha)
+ PIXELFORMAT_COMPRESSED_DXT3_RGBA, // 8 bpp
+ PIXELFORMAT_COMPRESSED_DXT5_RGBA, // 8 bpp
+ PIXELFORMAT_COMPRESSED_ETC1_RGB, // 4 bpp
+ PIXELFORMAT_COMPRESSED_ETC2_RGB, // 4 bpp
+ PIXELFORMAT_COMPRESSED_ETC2_EAC_RGBA, // 8 bpp
+ PIXELFORMAT_COMPRESSED_PVRT_RGB, // 4 bpp
+ PIXELFORMAT_COMPRESSED_PVRT_RGBA, // 4 bpp
+ PIXELFORMAT_COMPRESSED_ASTC_4x4_RGBA, // 8 bpp
+ PIXELFORMAT_COMPRESSED_ASTC_8x8_RGBA // 2 bpp
+} PixelFormat;
+
+// Texture parameters: filter mode
+// NOTE 1: Filtering considers mipmaps if available in the texture
+// NOTE 2: Filter is accordingly set for minification and magnification
+typedef enum {
+ TEXTURE_FILTER_POINT = 0, // No filter, just pixel approximation
+ TEXTURE_FILTER_BILINEAR, // Linear filtering
+ TEXTURE_FILTER_TRILINEAR, // Trilinear filtering (linear with mipmaps)
+ TEXTURE_FILTER_ANISOTROPIC_4X, // Anisotropic filtering 4x
+ TEXTURE_FILTER_ANISOTROPIC_8X, // Anisotropic filtering 8x
+ TEXTURE_FILTER_ANISOTROPIC_16X, // Anisotropic filtering 16x
+} TextureFilter;
+
+// Texture parameters: wrap mode
+typedef enum {
+ TEXTURE_WRAP_REPEAT = 0, // Repeats texture in tiled mode
+ TEXTURE_WRAP_CLAMP, // Clamps texture to edge pixel in tiled mode
+ TEXTURE_WRAP_MIRROR_REPEAT, // Mirrors and repeats the texture in tiled mode
+ TEXTURE_WRAP_MIRROR_CLAMP // Mirrors and clamps to border the texture in tiled mode
+} TextureWrap;
+
+// Cubemap layouts
+typedef enum {
+ CUBEMAP_LAYOUT_AUTO_DETECT = 0, // Automatically detect layout type
+ CUBEMAP_LAYOUT_LINE_VERTICAL, // Layout is defined by a vertical line with faces
+ CUBEMAP_LAYOUT_LINE_HORIZONTAL, // Layout is defined by a horizontal line with faces
+ CUBEMAP_LAYOUT_CROSS_THREE_BY_FOUR, // Layout is defined by a 3x4 cross with cubemap faces
+ CUBEMAP_LAYOUT_CROSS_FOUR_BY_THREE, // Layout is defined by a 4x3 cross with cubemap faces
+ CUBEMAP_LAYOUT_PANORAMA // Layout is defined by a panorama image (equirrectangular map)
+} CubemapLayout;
+
+// Font type, defines generation method
+typedef enum {
+ FONT_DEFAULT = 0, // Default font generation, anti-aliased
+ FONT_BITMAP, // Bitmap font generation, no anti-aliasing
+ FONT_SDF // SDF font generation, requires external shader
+} FontType;
+
+// Color blending modes (pre-defined)
+typedef enum {
+ BLEND_ALPHA = 0, // Blend textures considering alpha (default)
+ BLEND_ADDITIVE, // Blend textures adding colors
+ BLEND_MULTIPLIED, // Blend textures multiplying colors
+ BLEND_ADD_COLORS, // Blend textures adding colors (alternative)
+ BLEND_SUBTRACT_COLORS, // Blend textures subtracting colors (alternative)
+ BLEND_ALPHA_PREMULTIPLY, // Blend premultiplied textures considering alpha
+ BLEND_CUSTOM, // Blend textures using custom src/dst factors (use rlSetBlendFactors())
+ BLEND_CUSTOM_SEPARATE // Blend textures using custom rgb/alpha separate src/dst factors (use rlSetBlendFactorsSeparate())
+} BlendMode;
+
+// Gesture
+// NOTE: Provided as bit-wise flags to enable only desired gestures
+typedef enum {
+ GESTURE_NONE = 0, // No gesture
+ GESTURE_TAP = 1, // Tap gesture
+ GESTURE_DOUBLETAP = 2, // Double tap gesture
+ GESTURE_HOLD = 4, // Hold gesture
+ GESTURE_DRAG = 8, // Drag gesture
+ GESTURE_SWIPE_RIGHT = 16, // Swipe right gesture
+ GESTURE_SWIPE_LEFT = 32, // Swipe left gesture
+ GESTURE_SWIPE_UP = 64, // Swipe up gesture
+ GESTURE_SWIPE_DOWN = 128, // Swipe down gesture
+ GESTURE_PINCH_IN = 256, // Pinch in gesture
+ GESTURE_PINCH_OUT = 512 // Pinch out gesture
+} Gesture;
+
+// Camera system modes
+typedef enum {
+ CAMERA_CUSTOM = 0, // Custom camera
+ CAMERA_FREE, // Free camera
+ CAMERA_ORBITAL, // Orbital camera
+ CAMERA_FIRST_PERSON, // First person camera
+ CAMERA_THIRD_PERSON // Third person camera
+} CameraMode;
+
+// Camera projection
+typedef enum {
+ CAMERA_PERSPECTIVE = 0, // Perspective projection
+ CAMERA_ORTHOGRAPHIC // Orthographic projection
+} CameraProjection;
+
+// N-patch layout
+typedef enum {
+ NPATCH_NINE_PATCH = 0, // Npatch layout: 3x3 tiles
+ NPATCH_THREE_PATCH_VERTICAL, // Npatch layout: 1x3 tiles
+ NPATCH_THREE_PATCH_HORIZONTAL // Npatch layout: 3x1 tiles
+} NPatchLayout;
+
+// Callbacks to hook some internal functions
+// WARNING: These callbacks are intended for advance users
+typedef void (*TraceLogCallback)(int logLevel, const char *text, va_list args); // Logging: Redirect trace log messages
+typedef unsigned char *(*LoadFileDataCallback)(const char *fileName, int *dataSize); // FileIO: Load binary data
+typedef bool (*SaveFileDataCallback)(const char *fileName, void *data, int dataSize); // FileIO: Save binary data
+typedef char *(*LoadFileTextCallback)(const char *fileName); // FileIO: Load text data
+typedef bool (*SaveFileTextCallback)(const char *fileName, char *text); // FileIO: Save text data
+
+//------------------------------------------------------------------------------------
+// Global Variables Definition
+//------------------------------------------------------------------------------------
+// It's lonely here...
+
+//------------------------------------------------------------------------------------
+// Window and Graphics Device Functions (Module: core)
+//------------------------------------------------------------------------------------
+
+#if defined(__cplusplus)
+extern "C" { // Prevents name mangling of functions
+#endif
+
+// Window-related functions
+RLAPI void InitWindow(int width, int height, const char *title); // Initialize window and OpenGL context
+RLAPI void CloseWindow(void); // Close window and unload OpenGL context
+RLAPI bool WindowShouldClose(void); // Check if application should close (KEY_ESCAPE pressed or windows close icon clicked)
+RLAPI bool IsWindowReady(void); // Check if window has been initialized successfully
+RLAPI bool IsWindowFullscreen(void); // Check if window is currently fullscreen
+RLAPI bool IsWindowHidden(void); // Check if window is currently hidden (only PLATFORM_DESKTOP)
+RLAPI bool IsWindowMinimized(void); // Check if window is currently minimized (only PLATFORM_DESKTOP)
+RLAPI bool IsWindowMaximized(void); // Check if window is currently maximized (only PLATFORM_DESKTOP)
+RLAPI bool IsWindowFocused(void); // Check if window is currently focused (only PLATFORM_DESKTOP)
+RLAPI bool IsWindowResized(void); // Check if window has been resized last frame
+RLAPI bool IsWindowState(unsigned int flag); // Check if one specific window flag is enabled
+RLAPI void SetWindowState(unsigned int flags); // Set window configuration state using flags (only PLATFORM_DESKTOP)
+RLAPI void ClearWindowState(unsigned int flags); // Clear window configuration state flags
+RLAPI void ToggleFullscreen(void); // Toggle window state: fullscreen/windowed (only PLATFORM_DESKTOP)
+RLAPI void ToggleBorderlessWindowed(void); // Toggle window state: borderless windowed (only PLATFORM_DESKTOP)
+RLAPI void MaximizeWindow(void); // Set window state: maximized, if resizable (only PLATFORM_DESKTOP)
+RLAPI void MinimizeWindow(void); // Set window state: minimized, if resizable (only PLATFORM_DESKTOP)
+RLAPI void RestoreWindow(void); // Set window state: not minimized/maximized (only PLATFORM_DESKTOP)
+RLAPI void SetWindowIcon(Image image); // Set icon for window (single image, RGBA 32bit, only PLATFORM_DESKTOP)
+RLAPI void SetWindowIcons(Image *images, int count); // Set icon for window (multiple images, RGBA 32bit, only PLATFORM_DESKTOP)
+RLAPI void SetWindowTitle(const char *title); // Set title for window (only PLATFORM_DESKTOP and PLATFORM_WEB)
+RLAPI void SetWindowPosition(int x, int y); // Set window position on screen (only PLATFORM_DESKTOP)
+RLAPI void SetWindowMonitor(int monitor); // Set monitor for the current window
+RLAPI void SetWindowMinSize(int width, int height); // Set window minimum dimensions (for FLAG_WINDOW_RESIZABLE)
+RLAPI void SetWindowMaxSize(int width, int height); // Set window maximum dimensions (for FLAG_WINDOW_RESIZABLE)
+RLAPI void SetWindowSize(int width, int height); // Set window dimensions
+RLAPI void SetWindowOpacity(float opacity); // Set window opacity [0.0f..1.0f] (only PLATFORM_DESKTOP)
+RLAPI void SetWindowFocused(void); // Set window focused (only PLATFORM_DESKTOP)
+RLAPI void *GetWindowHandle(void); // Get native window handle
+RLAPI int GetScreenWidth(void); // Get current screen width
+RLAPI int GetScreenHeight(void); // Get current screen height
+RLAPI int GetRenderWidth(void); // Get current render width (it considers HiDPI)
+RLAPI int GetRenderHeight(void); // Get current render height (it considers HiDPI)
+RLAPI int GetMonitorCount(void); // Get number of connected monitors
+RLAPI int GetCurrentMonitor(void); // Get current connected monitor
+RLAPI Vector2 GetMonitorPosition(int monitor); // Get specified monitor position
+RLAPI int GetMonitorWidth(int monitor); // Get specified monitor width (current video mode used by monitor)
+RLAPI int GetMonitorHeight(int monitor); // Get specified monitor height (current video mode used by monitor)
+RLAPI int GetMonitorPhysicalWidth(int monitor); // Get specified monitor physical width in millimetres
+RLAPI int GetMonitorPhysicalHeight(int monitor); // Get specified monitor physical height in millimetres
+RLAPI int GetMonitorRefreshRate(int monitor); // Get specified monitor refresh rate
+RLAPI Vector2 GetWindowPosition(void); // Get window position XY on monitor
+RLAPI Vector2 GetWindowScaleDPI(void); // Get window scale DPI factor
+RLAPI const char *GetMonitorName(int monitor); // Get the human-readable, UTF-8 encoded name of the specified monitor
+RLAPI void SetClipboardText(const char *text); // Set clipboard text content
+RLAPI const char *GetClipboardText(void); // Get clipboard text content
+RLAPI void EnableEventWaiting(void); // Enable waiting for events on EndDrawing(), no automatic event polling
+RLAPI void DisableEventWaiting(void); // Disable waiting for events on EndDrawing(), automatic events polling
+
+// Cursor-related functions
+RLAPI void ShowCursor(void); // Shows cursor
+RLAPI void HideCursor(void); // Hides cursor
+RLAPI bool IsCursorHidden(void); // Check if cursor is not visible
+RLAPI void EnableCursor(void); // Enables cursor (unlock cursor)
+RLAPI void DisableCursor(void); // Disables cursor (lock cursor)
+RLAPI bool IsCursorOnScreen(void); // Check if cursor is on the screen
+
+// Drawing-related functions
+RLAPI void ClearBackground(Color color); // Set background color (framebuffer clear color)
+RLAPI void BeginDrawing(void); // Setup canvas (framebuffer) to start drawing
+RLAPI void EndDrawing(void); // End canvas drawing and swap buffers (double buffering)
+RLAPI void BeginMode2D(Camera2D camera); // Begin 2D mode with custom camera (2D)
+RLAPI void EndMode2D(void); // Ends 2D mode with custom camera
+RLAPI void BeginMode3D(Camera3D camera); // Begin 3D mode with custom camera (3D)
+RLAPI void EndMode3D(void); // Ends 3D mode and returns to default 2D orthographic mode
+RLAPI void BeginTextureMode(RenderTexture2D target); // Begin drawing to render texture
+RLAPI void EndTextureMode(void); // Ends drawing to render texture
+RLAPI void BeginShaderMode(Shader shader); // Begin custom shader drawing
+RLAPI void EndShaderMode(void); // End custom shader drawing (use default shader)
+RLAPI void BeginBlendMode(int mode); // Begin blending mode (alpha, additive, multiplied, subtract, custom)
+RLAPI void EndBlendMode(void); // End blending mode (reset to default: alpha blending)
+RLAPI void BeginScissorMode(int x, int y, int width, int height); // Begin scissor mode (define screen area for following drawing)
+RLAPI void EndScissorMode(void); // End scissor mode
+RLAPI void BeginVrStereoMode(VrStereoConfig config); // Begin stereo rendering (requires VR simulator)
+RLAPI void EndVrStereoMode(void); // End stereo rendering (requires VR simulator)
+
+// VR stereo config functions for VR simulator
+RLAPI VrStereoConfig LoadVrStereoConfig(VrDeviceInfo device); // Load VR stereo config for VR simulator device parameters
+RLAPI void UnloadVrStereoConfig(VrStereoConfig config); // Unload VR stereo config
+
+// Shader management functions
+// NOTE: Shader functionality is not available on OpenGL 1.1
+RLAPI Shader LoadShader(const char *vsFileName, const char *fsFileName); // Load shader from files and bind default locations
+RLAPI Shader LoadShaderFromMemory(const char *vsCode, const char *fsCode); // Load shader from code strings and bind default locations
+RLAPI bool IsShaderReady(Shader shader); // Check if a shader is ready
+RLAPI int GetShaderLocation(Shader shader, const char *uniformName); // Get shader uniform location
+RLAPI int GetShaderLocationAttrib(Shader shader, const char *attribName); // Get shader attribute location
+RLAPI void SetShaderValue(Shader shader, int locIndex, const void *value, int uniformType); // Set shader uniform value
+RLAPI void SetShaderValueV(Shader shader, int locIndex, const void *value, int uniformType, int count); // Set shader uniform value vector
+RLAPI void SetShaderValueMatrix(Shader shader, int locIndex, Matrix mat); // Set shader uniform value (matrix 4x4)
+RLAPI void SetShaderValueTexture(Shader shader, int locIndex, Texture2D texture); // Set shader uniform value for texture (sampler2d)
+RLAPI void UnloadShader(Shader shader); // Unload shader from GPU memory (VRAM)
+
+// Screen-space-related functions
+RLAPI Ray GetMouseRay(Vector2 mousePosition, Camera camera); // Get a ray trace from mouse position
+RLAPI Ray GetViewRay(Vector2 mousePosition, Camera camera, float width, float height); // Get a ray trace from mouse position in a viewport
+RLAPI Vector2 GetWorldToScreen(Vector3 position, Camera camera); // Get the screen space position for a 3d world space position
+RLAPI Vector2 GetWorldToScreenEx(Vector3 position, Camera camera, int width, int height); // Get size position for a 3d world space position
+RLAPI Vector2 GetWorldToScreen2D(Vector2 position, Camera2D camera); // Get the screen space position for a 2d camera world space position
+RLAPI Vector2 GetScreenToWorld2D(Vector2 position, Camera2D camera); // Get the world space position for a 2d camera screen space position
+RLAPI Matrix GetCameraMatrix(Camera camera); // Get camera transform matrix (view matrix)
+RLAPI Matrix GetCameraMatrix2D(Camera2D camera); // Get camera 2d transform matrix
+
+// Timing-related functions
+RLAPI void SetTargetFPS(int fps); // Set target FPS (maximum)
+RLAPI float GetFrameTime(void); // Get time in seconds for last frame drawn (delta time)
+RLAPI double GetTime(void); // Get elapsed time in seconds since InitWindow()
+RLAPI int GetFPS(void); // Get current FPS
+
+// Custom frame control functions
+// NOTE: Those functions are intended for advance users that want full control over the frame processing
+// By default EndDrawing() does this job: draws everything + SwapScreenBuffer() + manage frame timing + PollInputEvents()
+// To avoid that behaviour and control frame processes manually, enable in config.h: SUPPORT_CUSTOM_FRAME_CONTROL
+RLAPI void SwapScreenBuffer(void); // Swap back buffer with front buffer (screen drawing)
+RLAPI void PollInputEvents(void); // Register all input events
+RLAPI void WaitTime(double seconds); // Wait for some time (halt program execution)
+
+// Random values generation functions
+RLAPI void SetRandomSeed(unsigned int seed); // Set the seed for the random number generator
+RLAPI int GetRandomValue(int min, int max); // Get a random value between min and max (both included)
+RLAPI int *LoadRandomSequence(unsigned int count, int min, int max); // Load random values sequence, no values repeated
+RLAPI void UnloadRandomSequence(int *sequence); // Unload random values sequence
+
+// Misc. functions
+RLAPI void TakeScreenshot(const char *fileName); // Takes a screenshot of current screen (filename extension defines format)
+RLAPI void SetConfigFlags(unsigned int flags); // Setup init configuration flags (view FLAGS)
+RLAPI void OpenURL(const char *url); // Open URL with default system browser (if available)
+
+// NOTE: Following functions implemented in module [utils]
+//------------------------------------------------------------------
+RLAPI void TraceLog(int logLevel, const char *text, ...); // Show trace log messages (LOG_DEBUG, LOG_INFO, LOG_WARNING, LOG_ERROR...)
+RLAPI void SetTraceLogLevel(int logLevel); // Set the current threshold (minimum) log level
+RLAPI void *MemAlloc(unsigned int size); // Internal memory allocator
+RLAPI void *MemRealloc(void *ptr, unsigned int size); // Internal memory reallocator
+RLAPI void MemFree(void *ptr); // Internal memory free
+
+// Set custom callbacks
+// WARNING: Callbacks setup is intended for advance users
+RLAPI void SetTraceLogCallback(TraceLogCallback callback); // Set custom trace log
+RLAPI void SetLoadFileDataCallback(LoadFileDataCallback callback); // Set custom file binary data loader
+RLAPI void SetSaveFileDataCallback(SaveFileDataCallback callback); // Set custom file binary data saver
+RLAPI void SetLoadFileTextCallback(LoadFileTextCallback callback); // Set custom file text data loader
+RLAPI void SetSaveFileTextCallback(SaveFileTextCallback callback); // Set custom file text data saver
+
+// Files management functions
+RLAPI unsigned char *LoadFileData(const char *fileName, int *dataSize); // Load file data as byte array (read)
+RLAPI void UnloadFileData(unsigned char *data); // Unload file data allocated by LoadFileData()
+RLAPI bool SaveFileData(const char *fileName, void *data, int dataSize); // Save data to file from byte array (write), returns true on success
+RLAPI bool ExportDataAsCode(const unsigned char *data, int dataSize, const char *fileName); // Export data to code (.h), returns true on success
+RLAPI char *LoadFileText(const char *fileName); // Load text data from file (read), returns a '\0' terminated string
+RLAPI void UnloadFileText(char *text); // Unload file text data allocated by LoadFileText()
+RLAPI bool SaveFileText(const char *fileName, char *text); // Save text data to file (write), string must be '\0' terminated, returns true on success
+//------------------------------------------------------------------
+
+// File system functions
+RLAPI bool FileExists(const char *fileName); // Check if file exists
+RLAPI bool DirectoryExists(const char *dirPath); // Check if a directory path exists
+RLAPI bool IsFileExtension(const char *fileName, const char *ext); // Check file extension (including point: .png, .wav)
+RLAPI int GetFileLength(const char *fileName); // Get file length in bytes (NOTE: GetFileSize() conflicts with windows.h)
+RLAPI const char *GetFileExtension(const char *fileName); // Get pointer to extension for a filename string (includes dot: '.png')
+RLAPI const char *GetFileName(const char *filePath); // Get pointer to filename for a path string
+RLAPI const char *GetFileNameWithoutExt(const char *filePath); // Get filename string without extension (uses static string)
+RLAPI const char *GetDirectoryPath(const char *filePath); // Get full path for a given fileName with path (uses static string)
+RLAPI const char *GetPrevDirectoryPath(const char *dirPath); // Get previous directory path for a given path (uses static string)
+RLAPI const char *GetWorkingDirectory(void); // Get current working directory (uses static string)
+RLAPI const char *GetApplicationDirectory(void); // Get the directory of the running application (uses static string)
+RLAPI bool ChangeDirectory(const char *dir); // Change working directory, return true on success
+RLAPI bool IsPathFile(const char *path); // Check if a given path is a file or a directory
+RLAPI FilePathList LoadDirectoryFiles(const char *dirPath); // Load directory filepaths
+RLAPI FilePathList LoadDirectoryFilesEx(const char *basePath, const char *filter, bool scanSubdirs); // Load directory filepaths with extension filtering and recursive directory scan
+RLAPI void UnloadDirectoryFiles(FilePathList files); // Unload filepaths
+RLAPI bool IsFileDropped(void); // Check if a file has been dropped into window
+RLAPI FilePathList LoadDroppedFiles(void); // Load dropped filepaths
+RLAPI void UnloadDroppedFiles(FilePathList files); // Unload dropped filepaths
+RLAPI long GetFileModTime(const char *fileName); // Get file modification time (last write time)
+
+// Compression/Encoding functionality
+RLAPI unsigned char *CompressData(const unsigned char *data, int dataSize, int *compDataSize); // Compress data (DEFLATE algorithm), memory must be MemFree()
+RLAPI unsigned char *DecompressData(const unsigned char *compData, int compDataSize, int *dataSize); // Decompress data (DEFLATE algorithm), memory must be MemFree()
+RLAPI char *EncodeDataBase64(const unsigned char *data, int dataSize, int *outputSize); // Encode data to Base64 string, memory must be MemFree()
+RLAPI unsigned char *DecodeDataBase64(const unsigned char *data, int *outputSize); // Decode Base64 string data, memory must be MemFree()
+
+// Automation events functionality
+RLAPI AutomationEventList LoadAutomationEventList(const char *fileName); // Load automation events list from file, NULL for empty list, capacity = MAX_AUTOMATION_EVENTS
+RLAPI void UnloadAutomationEventList(AutomationEventList list); // Unload automation events list from file
+RLAPI bool ExportAutomationEventList(AutomationEventList list, const char *fileName); // Export automation events list as text file
+RLAPI void SetAutomationEventList(AutomationEventList *list); // Set automation event list to record to
+RLAPI void SetAutomationEventBaseFrame(int frame); // Set automation event internal base frame to start recording
+RLAPI void StartAutomationEventRecording(void); // Start recording automation events (AutomationEventList must be set)
+RLAPI void StopAutomationEventRecording(void); // Stop recording automation events
+RLAPI void PlayAutomationEvent(AutomationEvent event); // Play a recorded automation event
+
+//------------------------------------------------------------------------------------
+// Input Handling Functions (Module: core)
+//------------------------------------------------------------------------------------
+
+// Input-related functions: keyboard
+RLAPI bool IsKeyPressed(int key); // Check if a key has been pressed once
+RLAPI bool IsKeyPressedRepeat(int key); // Check if a key has been pressed again (Only PLATFORM_DESKTOP)
+RLAPI bool IsKeyDown(int key); // Check if a key is being pressed
+RLAPI bool IsKeyReleased(int key); // Check if a key has been released once
+RLAPI bool IsKeyUp(int key); // Check if a key is NOT being pressed
+RLAPI int GetKeyPressed(void); // Get key pressed (keycode), call it multiple times for keys queued, returns 0 when the queue is empty
+RLAPI int GetCharPressed(void); // Get char pressed (unicode), call it multiple times for chars queued, returns 0 when the queue is empty
+RLAPI void SetExitKey(int key); // Set a custom key to exit program (default is ESC)
+
+// Input-related functions: gamepads
+RLAPI bool IsGamepadAvailable(int gamepad); // Check if a gamepad is available
+RLAPI const char *GetGamepadName(int gamepad); // Get gamepad internal name id
+RLAPI bool IsGamepadButtonPressed(int gamepad, int button); // Check if a gamepad button has been pressed once
+RLAPI bool IsGamepadButtonDown(int gamepad, int button); // Check if a gamepad button is being pressed
+RLAPI bool IsGamepadButtonReleased(int gamepad, int button); // Check if a gamepad button has been released once
+RLAPI bool IsGamepadButtonUp(int gamepad, int button); // Check if a gamepad button is NOT being pressed
+RLAPI int GetGamepadButtonPressed(void); // Get the last gamepad button pressed
+RLAPI int GetGamepadAxisCount(int gamepad); // Get gamepad axis count for a gamepad
+RLAPI float GetGamepadAxisMovement(int gamepad, int axis); // Get axis movement value for a gamepad axis
+RLAPI int SetGamepadMappings(const char *mappings); // Set internal gamepad mappings (SDL_GameControllerDB)
+
+// Input-related functions: mouse
+RLAPI bool IsMouseButtonPressed(int button); // Check if a mouse button has been pressed once
+RLAPI bool IsMouseButtonDown(int button); // Check if a mouse button is being pressed
+RLAPI bool IsMouseButtonReleased(int button); // Check if a mouse button has been released once
+RLAPI bool IsMouseButtonUp(int button); // Check if a mouse button is NOT being pressed
+RLAPI int GetMouseX(void); // Get mouse position X
+RLAPI int GetMouseY(void); // Get mouse position Y
+RLAPI Vector2 GetMousePosition(void); // Get mouse position XY
+RLAPI Vector2 GetMouseDelta(void); // Get mouse delta between frames
+RLAPI void SetMousePosition(int x, int y); // Set mouse position XY
+RLAPI void SetMouseOffset(int offsetX, int offsetY); // Set mouse offset
+RLAPI void SetMouseScale(float scaleX, float scaleY); // Set mouse scaling
+RLAPI float GetMouseWheelMove(void); // Get mouse wheel movement for X or Y, whichever is larger
+RLAPI Vector2 GetMouseWheelMoveV(void); // Get mouse wheel movement for both X and Y
+RLAPI void SetMouseCursor(int cursor); // Set mouse cursor
+
+// Input-related functions: touch
+RLAPI int GetTouchX(void); // Get touch position X for touch point 0 (relative to screen size)
+RLAPI int GetTouchY(void); // Get touch position Y for touch point 0 (relative to screen size)
+RLAPI Vector2 GetTouchPosition(int index); // Get touch position XY for a touch point index (relative to screen size)
+RLAPI int GetTouchPointId(int index); // Get touch point identifier for given index
+RLAPI int GetTouchPointCount(void); // Get number of touch points
+
+//------------------------------------------------------------------------------------
+// Gestures and Touch Handling Functions (Module: rgestures)
+//------------------------------------------------------------------------------------
+RLAPI void SetGesturesEnabled(unsigned int flags); // Enable a set of gestures using flags
+RLAPI bool IsGestureDetected(unsigned int gesture); // Check if a gesture have been detected
+RLAPI int GetGestureDetected(void); // Get latest detected gesture
+RLAPI float GetGestureHoldDuration(void); // Get gesture hold time in milliseconds
+RLAPI Vector2 GetGestureDragVector(void); // Get gesture drag vector
+RLAPI float GetGestureDragAngle(void); // Get gesture drag angle
+RLAPI Vector2 GetGesturePinchVector(void); // Get gesture pinch delta
+RLAPI float GetGesturePinchAngle(void); // Get gesture pinch angle
+
+//------------------------------------------------------------------------------------
+// Camera System Functions (Module: rcamera)
+//------------------------------------------------------------------------------------
+RLAPI void UpdateCamera(Camera *camera, int mode); // Update camera position for selected mode
+RLAPI void UpdateCameraPro(Camera *camera, Vector3 movement, Vector3 rotation, float zoom); // Update camera movement/rotation
+
+//------------------------------------------------------------------------------------
+// Basic Shapes Drawing Functions (Module: shapes)
+//------------------------------------------------------------------------------------
+// Set texture and rectangle to be used on shapes drawing
+// NOTE: It can be useful when using basic shapes and one single font,
+// defining a font char white rectangle would allow drawing everything in a single draw call
+RLAPI void SetShapesTexture(Texture2D texture, Rectangle source); // Set texture and rectangle to be used on shapes drawing
+RLAPI Texture2D GetShapesTexture(void); // Get texture that is used for shapes drawing
+RLAPI Rectangle GetShapesTextureRectangle(void); // Get texture source rectangle that is used for shapes drawing
+
+// Basic shapes drawing functions
+RLAPI void DrawPixel(int posX, int posY, Color color); // Draw a pixel
+RLAPI void DrawPixelV(Vector2 position, Color color); // Draw a pixel (Vector version)
+RLAPI void DrawLine(int startPosX, int startPosY, int endPosX, int endPosY, Color color); // Draw a line
+RLAPI void DrawLineV(Vector2 startPos, Vector2 endPos, Color color); // Draw a line (using gl lines)
+RLAPI void DrawLineEx(Vector2 startPos, Vector2 endPos, float thick, Color color); // Draw a line (using triangles/quads)
+RLAPI void DrawLineStrip(Vector2 *points, int pointCount, Color color); // Draw lines sequence (using gl lines)
+RLAPI void DrawLineBezier(Vector2 startPos, Vector2 endPos, float thick, Color color); // Draw line segment cubic-bezier in-out interpolation
+RLAPI void DrawCircle(int centerX, int centerY, float radius, Color color); // Draw a color-filled circle
+RLAPI void DrawCircleSector(Vector2 center, float radius, float startAngle, float endAngle, int segments, Color color); // Draw a piece of a circle
+RLAPI void DrawCircleSectorLines(Vector2 center, float radius, float startAngle, float endAngle, int segments, Color color); // Draw circle sector outline
+RLAPI void DrawCircleGradient(int centerX, int centerY, float radius, Color color1, Color color2); // Draw a gradient-filled circle
+RLAPI void DrawCircleV(Vector2 center, float radius, Color color); // Draw a color-filled circle (Vector version)
+RLAPI void DrawCircleLines(int centerX, int centerY, float radius, Color color); // Draw circle outline
+RLAPI void DrawCircleLinesV(Vector2 center, float radius, Color color); // Draw circle outline (Vector version)
+RLAPI void DrawEllipse(int centerX, int centerY, float radiusH, float radiusV, Color color); // Draw ellipse
+RLAPI void DrawEllipseLines(int centerX, int centerY, float radiusH, float radiusV, Color color); // Draw ellipse outline
+RLAPI void DrawRing(Vector2 center, float innerRadius, float outerRadius, float startAngle, float endAngle, int segments, Color color); // Draw ring
+RLAPI void DrawRingLines(Vector2 center, float innerRadius, float outerRadius, float startAngle, float endAngle, int segments, Color color); // Draw ring outline
+RLAPI void DrawRectangle(int posX, int posY, int width, int height, Color color); // Draw a color-filled rectangle
+RLAPI void DrawRectangleV(Vector2 position, Vector2 size, Color color); // Draw a color-filled rectangle (Vector version)
+RLAPI void DrawRectangleRec(Rectangle rec, Color color); // Draw a color-filled rectangle
+RLAPI void DrawRectanglePro(Rectangle rec, Vector2 origin, float rotation, Color color); // Draw a color-filled rectangle with pro parameters
+RLAPI void DrawRectangleGradientV(int posX, int posY, int width, int height, Color color1, Color color2);// Draw a vertical-gradient-filled rectangle
+RLAPI void DrawRectangleGradientH(int posX, int posY, int width, int height, Color color1, Color color2);// Draw a horizontal-gradient-filled rectangle
+RLAPI void DrawRectangleGradientEx(Rectangle rec, Color col1, Color col2, Color col3, Color col4); // Draw a gradient-filled rectangle with custom vertex colors
+RLAPI void DrawRectangleLines(int posX, int posY, int width, int height, Color color); // Draw rectangle outline
+RLAPI void DrawRectangleLinesEx(Rectangle rec, float lineThick, Color color); // Draw rectangle outline with extended parameters
+RLAPI void DrawRectangleRounded(Rectangle rec, float roundness, int segments, Color color); // Draw rectangle with rounded edges
+RLAPI void DrawRectangleRoundedLines(Rectangle rec, float roundness, int segments, float lineThick, Color color); // Draw rectangle with rounded edges outline
+RLAPI void DrawTriangle(Vector2 v1, Vector2 v2, Vector2 v3, Color color); // Draw a color-filled triangle (vertex in counter-clockwise order!)
+RLAPI void DrawTriangleLines(Vector2 v1, Vector2 v2, Vector2 v3, Color color); // Draw triangle outline (vertex in counter-clockwise order!)
+RLAPI void DrawTriangleFan(Vector2 *points, int pointCount, Color color); // Draw a triangle fan defined by points (first vertex is the center)
+RLAPI void DrawTriangleStrip(Vector2 *points, int pointCount, Color color); // Draw a triangle strip defined by points
+RLAPI void DrawPoly(Vector2 center, int sides, float radius, float rotation, Color color); // Draw a regular polygon (Vector version)
+RLAPI void DrawPolyLines(Vector2 center, int sides, float radius, float rotation, Color color); // Draw a polygon outline of n sides
+RLAPI void DrawPolyLinesEx(Vector2 center, int sides, float radius, float rotation, float lineThick, Color color); // Draw a polygon outline of n sides with extended parameters
+
+// Splines drawing functions
+RLAPI void DrawSplineLinear(Vector2 *points, int pointCount, float thick, Color color); // Draw spline: Linear, minimum 2 points
+RLAPI void DrawSplineBasis(Vector2 *points, int pointCount, float thick, Color color); // Draw spline: B-Spline, minimum 4 points
+RLAPI void DrawSplineCatmullRom(Vector2 *points, int pointCount, float thick, Color color); // Draw spline: Catmull-Rom, minimum 4 points
+RLAPI void DrawSplineBezierQuadratic(Vector2 *points, int pointCount, float thick, Color color); // Draw spline: Quadratic Bezier, minimum 3 points (1 control point): [p1, c2, p3, c4...]
+RLAPI void DrawSplineBezierCubic(Vector2 *points, int pointCount, float thick, Color color); // Draw spline: Cubic Bezier, minimum 4 points (2 control points): [p1, c2, c3, p4, c5, c6...]
+RLAPI void DrawSplineSegmentLinear(Vector2 p1, Vector2 p2, float thick, Color color); // Draw spline segment: Linear, 2 points
+RLAPI void DrawSplineSegmentBasis(Vector2 p1, Vector2 p2, Vector2 p3, Vector2 p4, float thick, Color color); // Draw spline segment: B-Spline, 4 points
+RLAPI void DrawSplineSegmentCatmullRom(Vector2 p1, Vector2 p2, Vector2 p3, Vector2 p4, float thick, Color color); // Draw spline segment: Catmull-Rom, 4 points
+RLAPI void DrawSplineSegmentBezierQuadratic(Vector2 p1, Vector2 c2, Vector2 p3, float thick, Color color); // Draw spline segment: Quadratic Bezier, 2 points, 1 control point
+RLAPI void DrawSplineSegmentBezierCubic(Vector2 p1, Vector2 c2, Vector2 c3, Vector2 p4, float thick, Color color); // Draw spline segment: Cubic Bezier, 2 points, 2 control points
+
+// Spline segment point evaluation functions, for a given t [0.0f .. 1.0f]
+RLAPI Vector2 GetSplinePointLinear(Vector2 startPos, Vector2 endPos, float t); // Get (evaluate) spline point: Linear
+RLAPI Vector2 GetSplinePointBasis(Vector2 p1, Vector2 p2, Vector2 p3, Vector2 p4, float t); // Get (evaluate) spline point: B-Spline
+RLAPI Vector2 GetSplinePointCatmullRom(Vector2 p1, Vector2 p2, Vector2 p3, Vector2 p4, float t); // Get (evaluate) spline point: Catmull-Rom
+RLAPI Vector2 GetSplinePointBezierQuad(Vector2 p1, Vector2 c2, Vector2 p3, float t); // Get (evaluate) spline point: Quadratic Bezier
+RLAPI Vector2 GetSplinePointBezierCubic(Vector2 p1, Vector2 c2, Vector2 c3, Vector2 p4, float t); // Get (evaluate) spline point: Cubic Bezier
+
+// Basic shapes collision detection functions
+RLAPI bool CheckCollisionRecs(Rectangle rec1, Rectangle rec2); // Check collision between two rectangles
+RLAPI bool CheckCollisionCircles(Vector2 center1, float radius1, Vector2 center2, float radius2); // Check collision between two circles
+RLAPI bool CheckCollisionCircleRec(Vector2 center, float radius, Rectangle rec); // Check collision between circle and rectangle
+RLAPI bool CheckCollisionPointRec(Vector2 point, Rectangle rec); // Check if point is inside rectangle
+RLAPI bool CheckCollisionPointCircle(Vector2 point, Vector2 center, float radius); // Check if point is inside circle
+RLAPI bool CheckCollisionPointTriangle(Vector2 point, Vector2 p1, Vector2 p2, Vector2 p3); // Check if point is inside a triangle
+RLAPI bool CheckCollisionPointPoly(Vector2 point, Vector2 *points, int pointCount); // Check if point is within a polygon described by array of vertices
+RLAPI bool CheckCollisionLines(Vector2 startPos1, Vector2 endPos1, Vector2 startPos2, Vector2 endPos2, Vector2 *collisionPoint); // Check the collision between two lines defined by two points each, returns collision point by reference
+RLAPI bool CheckCollisionPointLine(Vector2 point, Vector2 p1, Vector2 p2, int threshold); // Check if point belongs to line created between two points [p1] and [p2] with defined margin in pixels [threshold]
+RLAPI Rectangle GetCollisionRec(Rectangle rec1, Rectangle rec2); // Get collision rectangle for two rectangles collision
+
+//------------------------------------------------------------------------------------
+// Texture Loading and Drawing Functions (Module: textures)
+//------------------------------------------------------------------------------------
+
+// Image loading functions
+// NOTE: These functions do not require GPU access
+RLAPI Image LoadImage(const char *fileName); // Load image from file into CPU memory (RAM)
+RLAPI Image LoadImageRaw(const char *fileName, int width, int height, int format, int headerSize); // Load image from RAW file data
+RLAPI Image LoadImageSvg(const char *fileNameOrString, int width, int height); // Load image from SVG file data or string with specified size
+RLAPI Image LoadImageAnim(const char *fileName, int *frames); // Load image sequence from file (frames appended to image.data)
+RLAPI Image LoadImageAnimFromMemory(const char *fileType, const unsigned char *fileData, int dataSize, int *frames); // Load image sequence from memory buffer
+RLAPI Image LoadImageFromMemory(const char *fileType, const unsigned char *fileData, int dataSize); // Load image from memory buffer, fileType refers to extension: i.e. '.png'
+RLAPI Image LoadImageFromTexture(Texture2D texture); // Load image from GPU texture data
+RLAPI Image LoadImageFromScreen(void); // Load image from screen buffer and (screenshot)
+RLAPI bool IsImageReady(Image image); // Check if an image is ready
+RLAPI void UnloadImage(Image image); // Unload image from CPU memory (RAM)
+RLAPI bool ExportImage(Image image, const char *fileName); // Export image data to file, returns true on success
+RLAPI unsigned char *ExportImageToMemory(Image image, const char *fileType, int *fileSize); // Export image to memory buffer
+RLAPI bool ExportImageAsCode(Image image, const char *fileName); // Export image as code file defining an array of bytes, returns true on success
+
+// Image generation functions
+RLAPI Image GenImageColor(int width, int height, Color color); // Generate image: plain color
+RLAPI Image GenImageGradientLinear(int width, int height, int direction, Color start, Color end); // Generate image: linear gradient, direction in degrees [0..360], 0=Vertical gradient
+RLAPI Image GenImageGradientRadial(int width, int height, float density, Color inner, Color outer); // Generate image: radial gradient
+RLAPI Image GenImageGradientSquare(int width, int height, float density, Color inner, Color outer); // Generate image: square gradient
+RLAPI Image GenImageChecked(int width, int height, int checksX, int checksY, Color col1, Color col2); // Generate image: checked
+RLAPI Image GenImageWhiteNoise(int width, int height, float factor); // Generate image: white noise
+RLAPI Image GenImagePerlinNoise(int width, int height, int offsetX, int offsetY, float scale); // Generate image: perlin noise
+RLAPI Image GenImageCellular(int width, int height, int tileSize); // Generate image: cellular algorithm, bigger tileSize means bigger cells
+RLAPI Image GenImageText(int width, int height, const char *text); // Generate image: grayscale image from text data
+
+// Image manipulation functions
+RLAPI Image ImageCopy(Image image); // Create an image duplicate (useful for transformations)
+RLAPI Image ImageFromImage(Image image, Rectangle rec); // Create an image from another image piece
+RLAPI Image ImageText(const char *text, int fontSize, Color color); // Create an image from text (default font)
+RLAPI Image ImageTextEx(Font font, const char *text, float fontSize, float spacing, Color tint); // Create an image from text (custom sprite font)
+RLAPI void ImageFormat(Image *image, int newFormat); // Convert image data to desired format
+RLAPI void ImageToPOT(Image *image, Color fill); // Convert image to POT (power-of-two)
+RLAPI void ImageCrop(Image *image, Rectangle crop); // Crop an image to a defined rectangle
+RLAPI void ImageAlphaCrop(Image *image, float threshold); // Crop image depending on alpha value
+RLAPI void ImageAlphaClear(Image *image, Color color, float threshold); // Clear alpha channel to desired color
+RLAPI void ImageAlphaMask(Image *image, Image alphaMask); // Apply alpha mask to image
+RLAPI void ImageAlphaPremultiply(Image *image); // Premultiply alpha channel
+RLAPI void ImageBlurGaussian(Image *image, int blurSize); // Apply Gaussian blur using a box blur approximation
+RLAPI void ImageKernelConvolution(Image *image, float* kernel, int kernelSize); // Apply Custom Square image convolution kernel
+RLAPI void ImageResize(Image *image, int newWidth, int newHeight); // Resize image (Bicubic scaling algorithm)
+RLAPI void ImageResizeNN(Image *image, int newWidth,int newHeight); // Resize image (Nearest-Neighbor scaling algorithm)
+RLAPI void ImageResizeCanvas(Image *image, int newWidth, int newHeight, int offsetX, int offsetY, Color fill); // Resize canvas and fill with color
+RLAPI void ImageMipmaps(Image *image); // Compute all mipmap levels for a provided image
+RLAPI void ImageDither(Image *image, int rBpp, int gBpp, int bBpp, int aBpp); // Dither image data to 16bpp or lower (Floyd-Steinberg dithering)
+RLAPI void ImageFlipVertical(Image *image); // Flip image vertically
+RLAPI void ImageFlipHorizontal(Image *image); // Flip image horizontally
+RLAPI void ImageRotate(Image *image, int degrees); // Rotate image by input angle in degrees (-359 to 359)
+RLAPI void ImageRotateCW(Image *image); // Rotate image clockwise 90deg
+RLAPI void ImageRotateCCW(Image *image); // Rotate image counter-clockwise 90deg
+RLAPI void ImageColorTint(Image *image, Color color); // Modify image color: tint
+RLAPI void ImageColorInvert(Image *image); // Modify image color: invert
+RLAPI void ImageColorGrayscale(Image *image); // Modify image color: grayscale
+RLAPI void ImageColorContrast(Image *image, float contrast); // Modify image color: contrast (-100 to 100)
+RLAPI void ImageColorBrightness(Image *image, int brightness); // Modify image color: brightness (-255 to 255)
+RLAPI void ImageColorReplace(Image *image, Color color, Color replace); // Modify image color: replace color
+RLAPI Color *LoadImageColors(Image image); // Load color data from image as a Color array (RGBA - 32bit)
+RLAPI Color *LoadImagePalette(Image image, int maxPaletteSize, int *colorCount); // Load colors palette from image as a Color array (RGBA - 32bit)
+RLAPI void UnloadImageColors(Color *colors); // Unload color data loaded with LoadImageColors()
+RLAPI void UnloadImagePalette(Color *colors); // Unload colors palette loaded with LoadImagePalette()
+RLAPI Rectangle GetImageAlphaBorder(Image image, float threshold); // Get image alpha border rectangle
+RLAPI Color GetImageColor(Image image, int x, int y); // Get image pixel color at (x, y) position
+
+// Image drawing functions
+// NOTE: Image software-rendering functions (CPU)
+RLAPI void ImageClearBackground(Image *dst, Color color); // Clear image background with given color
+RLAPI void ImageDrawPixel(Image *dst, int posX, int posY, Color color); // Draw pixel within an image
+RLAPI void ImageDrawPixelV(Image *dst, Vector2 position, Color color); // Draw pixel within an image (Vector version)
+RLAPI void ImageDrawLine(Image *dst, int startPosX, int startPosY, int endPosX, int endPosY, Color color); // Draw line within an image
+RLAPI void ImageDrawLineV(Image *dst, Vector2 start, Vector2 end, Color color); // Draw line within an image (Vector version)
+RLAPI void ImageDrawCircle(Image *dst, int centerX, int centerY, int radius, Color color); // Draw a filled circle within an image
+RLAPI void ImageDrawCircleV(Image *dst, Vector2 center, int radius, Color color); // Draw a filled circle within an image (Vector version)
+RLAPI void ImageDrawCircleLines(Image *dst, int centerX, int centerY, int radius, Color color); // Draw circle outline within an image
+RLAPI void ImageDrawCircleLinesV(Image *dst, Vector2 center, int radius, Color color); // Draw circle outline within an image (Vector version)
+RLAPI void ImageDrawRectangle(Image *dst, int posX, int posY, int width, int height, Color color); // Draw rectangle within an image
+RLAPI void ImageDrawRectangleV(Image *dst, Vector2 position, Vector2 size, Color color); // Draw rectangle within an image (Vector version)
+RLAPI void ImageDrawRectangleRec(Image *dst, Rectangle rec, Color color); // Draw rectangle within an image
+RLAPI void ImageDrawRectangleLines(Image *dst, Rectangle rec, int thick, Color color); // Draw rectangle lines within an image
+RLAPI void ImageDraw(Image *dst, Image src, Rectangle srcRec, Rectangle dstRec, Color tint); // Draw a source image within a destination image (tint applied to source)
+RLAPI void ImageDrawText(Image *dst, const char *text, int posX, int posY, int fontSize, Color color); // Draw text (using default font) within an image (destination)
+RLAPI void ImageDrawTextEx(Image *dst, Font font, const char *text, Vector2 position, float fontSize, float spacing, Color tint); // Draw text (custom sprite font) within an image (destination)
+
+// Texture loading functions
+// NOTE: These functions require GPU access
+RLAPI Texture2D LoadTexture(const char *fileName); // Load texture from file into GPU memory (VRAM)
+RLAPI Texture2D LoadTextureFromImage(Image image); // Load texture from image data
+RLAPI TextureCubemap LoadTextureCubemap(Image image, int layout); // Load cubemap from image, multiple image cubemap layouts supported
+RLAPI RenderTexture2D LoadRenderTexture(int width, int height); // Load texture for rendering (framebuffer)
+RLAPI bool IsTextureReady(Texture2D texture); // Check if a texture is ready
+RLAPI void UnloadTexture(Texture2D texture); // Unload texture from GPU memory (VRAM)
+RLAPI bool IsRenderTextureReady(RenderTexture2D target); // Check if a render texture is ready
+RLAPI void UnloadRenderTexture(RenderTexture2D target); // Unload render texture from GPU memory (VRAM)
+RLAPI void UpdateTexture(Texture2D texture, const void *pixels); // Update GPU texture with new data
+RLAPI void UpdateTextureRec(Texture2D texture, Rectangle rec, const void *pixels); // Update GPU texture rectangle with new data
+
+// Texture configuration functions
+RLAPI void GenTextureMipmaps(Texture2D *texture); // Generate GPU mipmaps for a texture
+RLAPI void SetTextureFilter(Texture2D texture, int filter); // Set texture scaling filter mode
+RLAPI void SetTextureWrap(Texture2D texture, int wrap); // Set texture wrapping mode
+
+// Texture drawing functions
+RLAPI void DrawTexture(Texture2D texture, int posX, int posY, Color tint); // Draw a Texture2D
+RLAPI void DrawTextureV(Texture2D texture, Vector2 position, Color tint); // Draw a Texture2D with position defined as Vector2
+RLAPI void DrawTextureEx(Texture2D texture, Vector2 position, float rotation, float scale, Color tint); // Draw a Texture2D with extended parameters
+RLAPI void DrawTextureRec(Texture2D texture, Rectangle source, Vector2 position, Color tint); // Draw a part of a texture defined by a rectangle
+RLAPI void DrawTexturePro(Texture2D texture, Rectangle source, Rectangle dest, Vector2 origin, float rotation, Color tint); // Draw a part of a texture defined by a rectangle with 'pro' parameters
+RLAPI void DrawTextureNPatch(Texture2D texture, NPatchInfo nPatchInfo, Rectangle dest, Vector2 origin, float rotation, Color tint); // Draws a texture (or part of it) that stretches or shrinks nicely
+
+// Color/pixel related functions
+RLAPI Color Fade(Color color, float alpha); // Get color with alpha applied, alpha goes from 0.0f to 1.0f
+RLAPI int ColorToInt(Color color); // Get hexadecimal value for a Color
+RLAPI Vector4 ColorNormalize(Color color); // Get Color normalized as float [0..1]
+RLAPI Color ColorFromNormalized(Vector4 normalized); // Get Color from normalized values [0..1]
+RLAPI Vector3 ColorToHSV(Color color); // Get HSV values for a Color, hue [0..360], saturation/value [0..1]
+RLAPI Color ColorFromHSV(float hue, float saturation, float value); // Get a Color from HSV values, hue [0..360], saturation/value [0..1]
+RLAPI Color ColorTint(Color color, Color tint); // Get color multiplied with another color
+RLAPI Color ColorBrightness(Color color, float factor); // Get color with brightness correction, brightness factor goes from -1.0f to 1.0f
+RLAPI Color ColorContrast(Color color, float contrast); // Get color with contrast correction, contrast values between -1.0f and 1.0f
+RLAPI Color ColorAlpha(Color color, float alpha); // Get color with alpha applied, alpha goes from 0.0f to 1.0f
+RLAPI Color ColorAlphaBlend(Color dst, Color src, Color tint); // Get src alpha-blended into dst color with tint
+RLAPI Color GetColor(unsigned int hexValue); // Get Color structure from hexadecimal value
+RLAPI Color GetPixelColor(void *srcPtr, int format); // Get Color from a source pixel pointer of certain format
+RLAPI void SetPixelColor(void *dstPtr, Color color, int format); // Set color formatted into destination pixel pointer
+RLAPI int GetPixelDataSize(int width, int height, int format); // Get pixel data size in bytes for certain format
+
+//------------------------------------------------------------------------------------
+// Font Loading and Text Drawing Functions (Module: text)
+//------------------------------------------------------------------------------------
+
+// Font loading/unloading functions
+RLAPI Font GetFontDefault(void); // Get the default Font
+RLAPI Font LoadFont(const char *fileName); // Load font from file into GPU memory (VRAM)
+RLAPI Font LoadFontEx(const char *fileName, int fontSize, int *codepoints, int codepointCount); // Load font from file with extended parameters, use NULL for codepoints and 0 for codepointCount to load the default character set
+RLAPI Font LoadFontFromImage(Image image, Color key, int firstChar); // Load font from Image (XNA style)
+RLAPI Font LoadFontFromMemory(const char *fileType, const unsigned char *fileData, int dataSize, int fontSize, int *codepoints, int codepointCount); // Load font from memory buffer, fileType refers to extension: i.e. '.ttf'
+RLAPI bool IsFontReady(Font font); // Check if a font is ready
+RLAPI GlyphInfo *LoadFontData(const unsigned char *fileData, int dataSize, int fontSize, int *codepoints, int codepointCount, int type); // Load font data for further use
+RLAPI Image GenImageFontAtlas(const GlyphInfo *glyphs, Rectangle **glyphRecs, int glyphCount, int fontSize, int padding, int packMethod); // Generate image font atlas using chars info
+RLAPI void UnloadFontData(GlyphInfo *glyphs, int glyphCount); // Unload font chars info data (RAM)
+RLAPI void UnloadFont(Font font); // Unload font from GPU memory (VRAM)
+RLAPI bool ExportFontAsCode(Font font, const char *fileName); // Export font as code file, returns true on success
+
+// Text drawing functions
+RLAPI void DrawFPS(int posX, int posY); // Draw current FPS
+RLAPI void DrawText(const char *text, int posX, int posY, int fontSize, Color color); // Draw text (using default font)
+RLAPI void DrawTextEx(Font font, const char *text, Vector2 position, float fontSize, float spacing, Color tint); // Draw text using font and additional parameters
+RLAPI void DrawTextPro(Font font, const char *text, Vector2 position, Vector2 origin, float rotation, float fontSize, float spacing, Color tint); // Draw text using Font and pro parameters (rotation)
+RLAPI void DrawTextCodepoint(Font font, int codepoint, Vector2 position, float fontSize, Color tint); // Draw one character (codepoint)
+RLAPI void DrawTextCodepoints(Font font, const int *codepoints, int codepointCount, Vector2 position, float fontSize, float spacing, Color tint); // Draw multiple character (codepoint)
+
+// Text font info functions
+RLAPI void SetTextLineSpacing(int spacing); // Set vertical line spacing when drawing with line-breaks
+RLAPI int MeasureText(const char *text, int fontSize); // Measure string width for default font
+RLAPI Vector2 MeasureTextEx(Font font, const char *text, float fontSize, float spacing); // Measure string size for Font
+RLAPI int GetGlyphIndex(Font font, int codepoint); // Get glyph index position in font for a codepoint (unicode character), fallback to '?' if not found
+RLAPI GlyphInfo GetGlyphInfo(Font font, int codepoint); // Get glyph font info data for a codepoint (unicode character), fallback to '?' if not found
+RLAPI Rectangle GetGlyphAtlasRec(Font font, int codepoint); // Get glyph rectangle in font atlas for a codepoint (unicode character), fallback to '?' if not found
+
+// Text codepoints management functions (unicode characters)
+RLAPI char *LoadUTF8(const int *codepoints, int length); // Load UTF-8 text encoded from codepoints array
+RLAPI void UnloadUTF8(char *text); // Unload UTF-8 text encoded from codepoints array
+RLAPI int *LoadCodepoints(const char *text, int *count); // Load all codepoints from a UTF-8 text string, codepoints count returned by parameter
+RLAPI void UnloadCodepoints(int *codepoints); // Unload codepoints data from memory
+RLAPI int GetCodepointCount(const char *text); // Get total number of codepoints in a UTF-8 encoded string
+RLAPI int GetCodepoint(const char *text, int *codepointSize); // Get next codepoint in a UTF-8 encoded string, 0x3f('?') is returned on failure
+RLAPI int GetCodepointNext(const char *text, int *codepointSize); // Get next codepoint in a UTF-8 encoded string, 0x3f('?') is returned on failure
+RLAPI int GetCodepointPrevious(const char *text, int *codepointSize); // Get previous codepoint in a UTF-8 encoded string, 0x3f('?') is returned on failure
+RLAPI const char *CodepointToUTF8(int codepoint, int *utf8Size); // Encode one codepoint into UTF-8 byte array (array length returned as parameter)
+
+// Text strings management functions (no UTF-8 strings, only byte chars)
+// NOTE: Some strings allocate memory internally for returned strings, just be careful!
+RLAPI int TextCopy(char *dst, const char *src); // Copy one string to another, returns bytes copied
+RLAPI bool TextIsEqual(const char *text1, const char *text2); // Check if two text string are equal
+RLAPI unsigned int TextLength(const char *text); // Get text length, checks for '\0' ending
+RLAPI const char *TextFormat(const char *text, ...); // Text formatting with variables (sprintf() style)
+RLAPI const char *TextSubtext(const char *text, int position, int length); // Get a piece of a text string
+RLAPI char *TextReplace(const char *text, const char *replace, const char *by); // Replace text string (WARNING: memory must be freed!)
+RLAPI char *TextInsert(const char *text, const char *insert, int position); // Insert text in a position (WARNING: memory must be freed!)
+RLAPI const char *TextJoin(const char **textList, int count, const char *delimiter); // Join text strings with delimiter
+RLAPI const char **TextSplit(const char *text, char delimiter, int *count); // Split text into multiple strings
+RLAPI void TextAppend(char *text, const char *append, int *position); // Append text at specific position and move cursor!
+RLAPI int TextFindIndex(const char *text, const char *find); // Find first text occurrence within a string
+RLAPI const char *TextToUpper(const char *text); // Get upper case version of provided string
+RLAPI const char *TextToLower(const char *text); // Get lower case version of provided string
+RLAPI const char *TextToPascal(const char *text); // Get Pascal case notation version of provided string
+RLAPI int TextToInteger(const char *text); // Get integer value from text (negative values not supported)
+RLAPI float TextToFloat(const char *text); // Get float value from text (negative values not supported)
+
+//------------------------------------------------------------------------------------
+// Basic 3d Shapes Drawing Functions (Module: models)
+//------------------------------------------------------------------------------------
+
+// Basic geometric 3D shapes drawing functions
+RLAPI void DrawLine3D(Vector3 startPos, Vector3 endPos, Color color); // Draw a line in 3D world space
+RLAPI void DrawPoint3D(Vector3 position, Color color); // Draw a point in 3D space, actually a small line
+RLAPI void DrawCircle3D(Vector3 center, float radius, Vector3 rotationAxis, float rotationAngle, Color color); // Draw a circle in 3D world space
+RLAPI void DrawTriangle3D(Vector3 v1, Vector3 v2, Vector3 v3, Color color); // Draw a color-filled triangle (vertex in counter-clockwise order!)
+RLAPI void DrawTriangleStrip3D(Vector3 *points, int pointCount, Color color); // Draw a triangle strip defined by points
+RLAPI void DrawCube(Vector3 position, float width, float height, float length, Color color); // Draw cube
+RLAPI void DrawCubeV(Vector3 position, Vector3 size, Color color); // Draw cube (Vector version)
+RLAPI void DrawCubeWires(Vector3 position, float width, float height, float length, Color color); // Draw cube wires
+RLAPI void DrawCubeWiresV(Vector3 position, Vector3 size, Color color); // Draw cube wires (Vector version)
+RLAPI void DrawSphere(Vector3 centerPos, float radius, Color color); // Draw sphere
+RLAPI void DrawSphereEx(Vector3 centerPos, float radius, int rings, int slices, Color color); // Draw sphere with extended parameters
+RLAPI void DrawSphereWires(Vector3 centerPos, float radius, int rings, int slices, Color color); // Draw sphere wires
+RLAPI void DrawCylinder(Vector3 position, float radiusTop, float radiusBottom, float height, int slices, Color color); // Draw a cylinder/cone
+RLAPI void DrawCylinderEx(Vector3 startPos, Vector3 endPos, float startRadius, float endRadius, int sides, Color color); // Draw a cylinder with base at startPos and top at endPos
+RLAPI void DrawCylinderWires(Vector3 position, float radiusTop, float radiusBottom, float height, int slices, Color color); // Draw a cylinder/cone wires
+RLAPI void DrawCylinderWiresEx(Vector3 startPos, Vector3 endPos, float startRadius, float endRadius, int sides, Color color); // Draw a cylinder wires with base at startPos and top at endPos
+RLAPI void DrawCapsule(Vector3 startPos, Vector3 endPos, float radius, int slices, int rings, Color color); // Draw a capsule with the center of its sphere caps at startPos and endPos
+RLAPI void DrawCapsuleWires(Vector3 startPos, Vector3 endPos, float radius, int slices, int rings, Color color); // Draw capsule wireframe with the center of its sphere caps at startPos and endPos
+RLAPI void DrawPlane(Vector3 centerPos, Vector2 size, Color color); // Draw a plane XZ
+RLAPI void DrawRay(Ray ray, Color color); // Draw a ray line
+RLAPI void DrawGrid(int slices, float spacing); // Draw a grid (centered at (0, 0, 0))
+
+//------------------------------------------------------------------------------------
+// Model 3d Loading and Drawing Functions (Module: models)
+//------------------------------------------------------------------------------------
+
+// Model management functions
+RLAPI Model LoadModel(const char *fileName); // Load model from files (meshes and materials)
+RLAPI Model LoadModelFromMesh(Mesh mesh); // Load model from generated mesh (default material)
+RLAPI bool IsModelReady(Model model); // Check if a model is ready
+RLAPI void UnloadModel(Model model); // Unload model (including meshes) from memory (RAM and/or VRAM)
+RLAPI BoundingBox GetModelBoundingBox(Model model); // Compute model bounding box limits (considers all meshes)
+
+// Model drawing functions
+RLAPI void DrawModel(Model model, Vector3 position, float scale, Color tint); // Draw a model (with texture if set)
+RLAPI void DrawModelEx(Model model, Vector3 position, Vector3 rotationAxis, float rotationAngle, Vector3 scale, Color tint); // Draw a model with extended parameters
+RLAPI void DrawModelWires(Model model, Vector3 position, float scale, Color tint); // Draw a model wires (with texture if set)
+RLAPI void DrawModelWiresEx(Model model, Vector3 position, Vector3 rotationAxis, float rotationAngle, Vector3 scale, Color tint); // Draw a model wires (with texture if set) with extended parameters
+RLAPI void DrawBoundingBox(BoundingBox box, Color color); // Draw bounding box (wires)
+RLAPI void DrawBillboard(Camera camera, Texture2D texture, Vector3 position, float size, Color tint); // Draw a billboard texture
+RLAPI void DrawBillboardRec(Camera camera, Texture2D texture, Rectangle source, Vector3 position, Vector2 size, Color tint); // Draw a billboard texture defined by source
+RLAPI void DrawBillboardPro(Camera camera, Texture2D texture, Rectangle source, Vector3 position, Vector3 up, Vector2 size, Vector2 origin, float rotation, Color tint); // Draw a billboard texture defined by source and rotation
+
+// Mesh management functions
+RLAPI void UploadMesh(Mesh *mesh, bool dynamic); // Upload mesh vertex data in GPU and provide VAO/VBO ids
+RLAPI void UpdateMeshBuffer(Mesh mesh, int index, const void *data, int dataSize, int offset); // Update mesh vertex data in GPU for a specific buffer index
+RLAPI void UnloadMesh(Mesh mesh); // Unload mesh data from CPU and GPU
+RLAPI void DrawMesh(Mesh mesh, Material material, Matrix transform); // Draw a 3d mesh with material and transform
+RLAPI void DrawMeshInstanced(Mesh mesh, Material material, const Matrix *transforms, int instances); // Draw multiple mesh instances with material and different transforms
+RLAPI BoundingBox GetMeshBoundingBox(Mesh mesh); // Compute mesh bounding box limits
+RLAPI void GenMeshTangents(Mesh *mesh); // Compute mesh tangents
+RLAPI bool ExportMesh(Mesh mesh, const char *fileName); // Export mesh data to file, returns true on success
+RLAPI bool ExportMeshAsCode(Mesh mesh, const char *fileName); // Export mesh as code file (.h) defining multiple arrays of vertex attributes
+
+// Mesh generation functions
+RLAPI Mesh GenMeshPoly(int sides, float radius); // Generate polygonal mesh
+RLAPI Mesh GenMeshPlane(float width, float length, int resX, int resZ); // Generate plane mesh (with subdivisions)
+RLAPI Mesh GenMeshCube(float width, float height, float length); // Generate cuboid mesh
+RLAPI Mesh GenMeshSphere(float radius, int rings, int slices); // Generate sphere mesh (standard sphere)
+RLAPI Mesh GenMeshHemiSphere(float radius, int rings, int slices); // Generate half-sphere mesh (no bottom cap)
+RLAPI Mesh GenMeshCylinder(float radius, float height, int slices); // Generate cylinder mesh
+RLAPI Mesh GenMeshCone(float radius, float height, int slices); // Generate cone/pyramid mesh
+RLAPI Mesh GenMeshTorus(float radius, float size, int radSeg, int sides); // Generate torus mesh
+RLAPI Mesh GenMeshKnot(float radius, float size, int radSeg, int sides); // Generate trefoil knot mesh
+RLAPI Mesh GenMeshHeightmap(Image heightmap, Vector3 size); // Generate heightmap mesh from image data
+RLAPI Mesh GenMeshCubicmap(Image cubicmap, Vector3 cubeSize); // Generate cubes-based map mesh from image data
+
+// Material loading/unloading functions
+RLAPI Material *LoadMaterials(const char *fileName, int *materialCount); // Load materials from model file
+RLAPI Material LoadMaterialDefault(void); // Load default material (Supports: DIFFUSE, SPECULAR, NORMAL maps)
+RLAPI bool IsMaterialReady(Material material); // Check if a material is ready
+RLAPI void UnloadMaterial(Material material); // Unload material from GPU memory (VRAM)
+RLAPI void SetMaterialTexture(Material *material, int mapType, Texture2D texture); // Set texture for a material map type (MATERIAL_MAP_DIFFUSE, MATERIAL_MAP_SPECULAR...)
+RLAPI void SetModelMeshMaterial(Model *model, int meshId, int materialId); // Set material for a mesh
+
+// Model animations loading/unloading functions
+RLAPI ModelAnimation *LoadModelAnimations(const char *fileName, int *animCount); // Load model animations from file
+RLAPI void UpdateModelAnimation(Model model, ModelAnimation anim, int frame); // Update model animation pose
+RLAPI void UnloadModelAnimation(ModelAnimation anim); // Unload animation data
+RLAPI void UnloadModelAnimations(ModelAnimation *animations, int animCount); // Unload animation array data
+RLAPI bool IsModelAnimationValid(Model model, ModelAnimation anim); // Check model animation skeleton match
+
+// Collision detection functions
+RLAPI bool CheckCollisionSpheres(Vector3 center1, float radius1, Vector3 center2, float radius2); // Check collision between two spheres
+RLAPI bool CheckCollisionBoxes(BoundingBox box1, BoundingBox box2); // Check collision between two bounding boxes
+RLAPI bool CheckCollisionBoxSphere(BoundingBox box, Vector3 center, float radius); // Check collision between box and sphere
+RLAPI RayCollision GetRayCollisionSphere(Ray ray, Vector3 center, float radius); // Get collision info between ray and sphere
+RLAPI RayCollision GetRayCollisionBox(Ray ray, BoundingBox box); // Get collision info between ray and box
+RLAPI RayCollision GetRayCollisionMesh(Ray ray, Mesh mesh, Matrix transform); // Get collision info between ray and mesh
+RLAPI RayCollision GetRayCollisionTriangle(Ray ray, Vector3 p1, Vector3 p2, Vector3 p3); // Get collision info between ray and triangle
+RLAPI RayCollision GetRayCollisionQuad(Ray ray, Vector3 p1, Vector3 p2, Vector3 p3, Vector3 p4); // Get collision info between ray and quad
+
+//------------------------------------------------------------------------------------
+// Audio Loading and Playing Functions (Module: audio)
+//------------------------------------------------------------------------------------
+typedef void (*AudioCallback)(void *bufferData, unsigned int frames);
+
+// Audio device management functions
+RLAPI void InitAudioDevice(void); // Initialize audio device and context
+RLAPI void CloseAudioDevice(void); // Close the audio device and context
+RLAPI bool IsAudioDeviceReady(void); // Check if audio device has been initialized successfully
+RLAPI void SetMasterVolume(float volume); // Set master volume (listener)
+RLAPI float GetMasterVolume(void); // Get master volume (listener)
+
+// Wave/Sound loading/unloading functions
+RLAPI Wave LoadWave(const char *fileName); // Load wave data from file
+RLAPI Wave LoadWaveFromMemory(const char *fileType, const unsigned char *fileData, int dataSize); // Load wave from memory buffer, fileType refers to extension: i.e. '.wav'
+RLAPI bool IsWaveReady(Wave wave); // Checks if wave data is ready
+RLAPI Sound LoadSound(const char *fileName); // Load sound from file
+RLAPI Sound LoadSoundFromWave(Wave wave); // Load sound from wave data
+RLAPI Sound LoadSoundAlias(Sound source); // Create a new sound that shares the same sample data as the source sound, does not own the sound data
+RLAPI bool IsSoundReady(Sound sound); // Checks if a sound is ready
+RLAPI void UpdateSound(Sound sound, const void *data, int sampleCount); // Update sound buffer with new data
+RLAPI void UnloadWave(Wave wave); // Unload wave data
+RLAPI void UnloadSound(Sound sound); // Unload sound
+RLAPI void UnloadSoundAlias(Sound alias); // Unload a sound alias (does not deallocate sample data)
+RLAPI bool ExportWave(Wave wave, const char *fileName); // Export wave data to file, returns true on success
+RLAPI bool ExportWaveAsCode(Wave wave, const char *fileName); // Export wave sample data to code (.h), returns true on success
+
+// Wave/Sound management functions
+RLAPI void PlaySound(Sound sound); // Play a sound
+RLAPI void StopSound(Sound sound); // Stop playing a sound
+RLAPI void PauseSound(Sound sound); // Pause a sound
+RLAPI void ResumeSound(Sound sound); // Resume a paused sound
+RLAPI bool IsSoundPlaying(Sound sound); // Check if a sound is currently playing
+RLAPI void SetSoundVolume(Sound sound, float volume); // Set volume for a sound (1.0 is max level)
+RLAPI void SetSoundPitch(Sound sound, float pitch); // Set pitch for a sound (1.0 is base level)
+RLAPI void SetSoundPan(Sound sound, float pan); // Set pan for a sound (0.5 is center)
+RLAPI Wave WaveCopy(Wave wave); // Copy a wave to a new wave
+RLAPI void WaveCrop(Wave *wave, int initSample, int finalSample); // Crop a wave to defined samples range
+RLAPI void WaveFormat(Wave *wave, int sampleRate, int sampleSize, int channels); // Convert wave data to desired format
+RLAPI float *LoadWaveSamples(Wave wave); // Load samples data from wave as a 32bit float data array
+RLAPI void UnloadWaveSamples(float *samples); // Unload samples data loaded with LoadWaveSamples()
+
+// Music management functions
+RLAPI Music LoadMusicStream(const char *fileName); // Load music stream from file
+RLAPI Music LoadMusicStreamFromMemory(const char *fileType, const unsigned char *data, int dataSize); // Load music stream from data
+RLAPI bool IsMusicReady(Music music); // Checks if a music stream is ready
+RLAPI void UnloadMusicStream(Music music); // Unload music stream
+RLAPI void PlayMusicStream(Music music); // Start music playing
+RLAPI bool IsMusicStreamPlaying(Music music); // Check if music is playing
+RLAPI void UpdateMusicStream(Music music); // Updates buffers for music streaming
+RLAPI void StopMusicStream(Music music); // Stop music playing
+RLAPI void PauseMusicStream(Music music); // Pause music playing
+RLAPI void ResumeMusicStream(Music music); // Resume playing paused music
+RLAPI void SeekMusicStream(Music music, float position); // Seek music to a position (in seconds)
+RLAPI void SetMusicVolume(Music music, float volume); // Set volume for music (1.0 is max level)
+RLAPI void SetMusicPitch(Music music, float pitch); // Set pitch for a music (1.0 is base level)
+RLAPI void SetMusicPan(Music music, float pan); // Set pan for a music (0.5 is center)
+RLAPI float GetMusicTimeLength(Music music); // Get music time length (in seconds)
+RLAPI float GetMusicTimePlayed(Music music); // Get current music time played (in seconds)
+
+// AudioStream management functions
+RLAPI AudioStream LoadAudioStream(unsigned int sampleRate, unsigned int sampleSize, unsigned int channels); // Load audio stream (to stream raw audio pcm data)
+RLAPI bool IsAudioStreamReady(AudioStream stream); // Checks if an audio stream is ready
+RLAPI void UnloadAudioStream(AudioStream stream); // Unload audio stream and free memory
+RLAPI void UpdateAudioStream(AudioStream stream, const void *data, int frameCount); // Update audio stream buffers with data
+RLAPI bool IsAudioStreamProcessed(AudioStream stream); // Check if any audio stream buffers requires refill
+RLAPI void PlayAudioStream(AudioStream stream); // Play audio stream
+RLAPI void PauseAudioStream(AudioStream stream); // Pause audio stream
+RLAPI void ResumeAudioStream(AudioStream stream); // Resume audio stream
+RLAPI bool IsAudioStreamPlaying(AudioStream stream); // Check if audio stream is playing
+RLAPI void StopAudioStream(AudioStream stream); // Stop audio stream
+RLAPI void SetAudioStreamVolume(AudioStream stream, float volume); // Set volume for audio stream (1.0 is max level)
+RLAPI void SetAudioStreamPitch(AudioStream stream, float pitch); // Set pitch for audio stream (1.0 is base level)
+RLAPI void SetAudioStreamPan(AudioStream stream, float pan); // Set pan for audio stream (0.5 is centered)
+RLAPI void SetAudioStreamBufferSizeDefault(int size); // Default size for new audio streams
+RLAPI void SetAudioStreamCallback(AudioStream stream, AudioCallback callback); // Audio thread callback to request new data
+
+RLAPI void AttachAudioStreamProcessor(AudioStream stream, AudioCallback processor); // Attach audio stream processor to stream, receives the samples as <float>s
+RLAPI void DetachAudioStreamProcessor(AudioStream stream, AudioCallback processor); // Detach audio stream processor from stream
+
+RLAPI void AttachAudioMixedProcessor(AudioCallback processor); // Attach audio stream processor to the entire audio pipeline, receives the samples as <float>s
+RLAPI void DetachAudioMixedProcessor(AudioCallback processor); // Detach audio stream processor from the entire audio pipeline
+
+#if defined(__cplusplus)
+}
+#endif
+
+#endif // RAYLIB_H
diff --git a/src/libs/raymath.h b/src/libs/raymath.h
@@ -0,0 +1,2191 @@
+/**********************************************************************************************
+*
+* raymath v1.5 - Math functions to work with Vector2, Vector3, Matrix and Quaternions
+*
+* CONVENTIONS:
+* - Matrix structure is defined as row-major (memory layout) but parameters naming AND all
+* math operations performed by the library consider the structure as it was column-major
+* It is like transposed versions of the matrices are used for all the maths
+* It benefits some functions making them cache-friendly and also avoids matrix
+* transpositions sometimes required by OpenGL
+* Example: In memory order, row0 is [m0 m4 m8 m12] but in semantic math row0 is [m0 m1 m2 m3]
+* - Functions are always self-contained, no function use another raymath function inside,
+* required code is directly re-implemented inside
+* - Functions input parameters are always received by value (2 unavoidable exceptions)
+* - Functions use always a "result" variable for return
+* - Functions are always defined inline
+* - Angles are always in radians (DEG2RAD/RAD2DEG macros provided for convenience)
+* - No compound literals used to make sure libray is compatible with C++
+*
+* CONFIGURATION:
+* #define RAYMATH_IMPLEMENTATION
+* Generates the implementation of the library into the included file.
+* If not defined, the library is in header only mode and can be included in other headers
+* or source files without problems. But only ONE file should hold the implementation.
+*
+* #define RAYMATH_STATIC_INLINE
+* Define static inline functions code, so #include header suffices for use.
+* This may use up lots of memory.
+*
+*
+* LICENSE: zlib/libpng
+*
+* Copyright (c) 2015-2024 Ramon Santamaria (@raysan5)
+*
+* This software is provided "as-is", without any express or implied warranty. In no event
+* will the authors be held liable for any damages arising from the use of this software.
+*
+* Permission is granted to anyone to use this software for any purpose, including commercial
+* applications, and to alter it and redistribute it freely, subject to the following restrictions:
+*
+* 1. The origin of this software must not be misrepresented; you must not claim that you
+* wrote the original software. If you use this software in a product, an acknowledgment
+* in the product documentation would be appreciated but is not required.
+*
+* 2. Altered source versions must be plainly marked as such, and must not be misrepresented
+* as being the original software.
+*
+* 3. This notice may not be removed or altered from any source distribution.
+*
+**********************************************************************************************/
+
+#ifndef RAYMATH_H
+#define RAYMATH_H
+
+#if defined(RAYMATH_IMPLEMENTATION) && defined(RAYMATH_STATIC_INLINE)
+ #error "Specifying both RAYMATH_IMPLEMENTATION and RAYMATH_STATIC_INLINE is contradictory"
+#endif
+
+// Function specifiers definition
+#if defined(RAYMATH_IMPLEMENTATION)
+ #if defined(_WIN32) && defined(BUILD_LIBTYPE_SHARED)
+ #define RMAPI __declspec(dllexport) extern inline // We are building raylib as a Win32 shared library (.dll)
+ #elif defined(BUILD_LIBTYPE_SHARED)
+ #define RMAPI __attribute__((visibility("default"))) // We are building raylib as a Unix shared library (.so/.dylib)
+ #elif defined(_WIN32) && defined(USE_LIBTYPE_SHARED)
+ #define RMAPI __declspec(dllimport) // We are using raylib as a Win32 shared library (.dll)
+ #else
+ #define RMAPI extern inline // Provide external definition
+ #endif
+#elif defined(RAYMATH_STATIC_INLINE)
+ #define RMAPI static inline // Functions may be inlined, no external out-of-line definition
+#else
+ #if defined(__TINYC__)
+ #define RMAPI static inline // plain inline not supported by tinycc (See issue #435)
+ #else
+ #define RMAPI inline // Functions may be inlined or external definition used
+ #endif
+#endif
+
+//----------------------------------------------------------------------------------
+// Defines and Macros
+//----------------------------------------------------------------------------------
+#ifndef PI
+ #define PI 3.14159265358979323846f
+#endif
+
+#ifndef EPSILON
+ #define EPSILON 0.000001f
+#endif
+
+#ifndef DEG2RAD
+ #define DEG2RAD (PI/180.0f)
+#endif
+
+#ifndef RAD2DEG
+ #define RAD2DEG (180.0f/PI)
+#endif
+
+// Get float vector for Matrix
+#ifndef MatrixToFloat
+ #define MatrixToFloat(mat) (MatrixToFloatV(mat).v)
+#endif
+
+// Get float vector for Vector3
+#ifndef Vector3ToFloat
+ #define Vector3ToFloat(vec) (Vector3ToFloatV(vec).v)
+#endif
+
+//----------------------------------------------------------------------------------
+// Types and Structures Definition
+//----------------------------------------------------------------------------------
+#if !defined(RL_VECTOR2_TYPE)
+// Vector2 type
+typedef struct Vector2 {
+ float x;
+ float y;
+} Vector2;
+#define RL_VECTOR2_TYPE
+#endif
+
+#if !defined(RL_VECTOR3_TYPE)
+// Vector3 type
+typedef struct Vector3 {
+ float x;
+ float y;
+ float z;
+} Vector3;
+#define RL_VECTOR3_TYPE
+#endif
+
+#if !defined(RL_VECTOR4_TYPE)
+// Vector4 type
+typedef struct Vector4 {
+ float x;
+ float y;
+ float z;
+ float w;
+} Vector4;
+#define RL_VECTOR4_TYPE
+#endif
+
+#if !defined(RL_QUATERNION_TYPE)
+// Quaternion type
+typedef Vector4 Quaternion;
+#define RL_QUATERNION_TYPE
+#endif
+
+#if !defined(RL_MATRIX_TYPE)
+// Matrix type (OpenGL style 4x4 - right handed, column major)
+typedef struct Matrix {
+ float m0, m4, m8, m12; // Matrix first row (4 components)
+ float m1, m5, m9, m13; // Matrix second row (4 components)
+ float m2, m6, m10, m14; // Matrix third row (4 components)
+ float m3, m7, m11, m15; // Matrix fourth row (4 components)
+} Matrix;
+#define RL_MATRIX_TYPE
+#endif
+
+// NOTE: Helper types to be used instead of array return types for *ToFloat functions
+typedef struct float3 {
+ float v[3];
+} float3;
+
+typedef struct float16 {
+ float v[16];
+} float16;
+
+#include <math.h> // Required for: sinf(), cosf(), tan(), atan2f(), sqrtf(), floor(), fminf(), fmaxf(), fabsf()
+
+//----------------------------------------------------------------------------------
+// Module Functions Definition - Utils math
+//----------------------------------------------------------------------------------
+
+// Clamp float value
+RMAPI float Clamp(float value, float min, float max)
+{
+ float result = (value < min) ? min : value;
+
+ if (result > max) result = max;
+
+ return result;
+}
+
+// Calculate linear interpolation between two floats
+RMAPI float Lerp(float start, float end, float amount)
+{
+ float result = start + amount*(end - start);
+
+ return result;
+}
+
+// Normalize input value within input range
+RMAPI float Normalize(float value, float start, float end)
+{
+ float result = (value - start)/(end - start);
+
+ return result;
+}
+
+// Remap input value within input range to output range
+RMAPI float Remap(float value, float inputStart, float inputEnd, float outputStart, float outputEnd)
+{
+ float result = (value - inputStart)/(inputEnd - inputStart)*(outputEnd - outputStart) + outputStart;
+
+ return result;
+}
+
+// Wrap input value from min to max
+RMAPI float Wrap(float value, float min, float max)
+{
+ float result = value - (max - min)*floorf((value - min)/(max - min));
+
+ return result;
+}
+
+// Check whether two given floats are almost equal
+RMAPI int FloatEquals(float x, float y)
+{
+#if !defined(EPSILON)
+ #define EPSILON 0.000001f
+#endif
+
+ int result = (fabsf(x - y)) <= (EPSILON*fmaxf(1.0f, fmaxf(fabsf(x), fabsf(y))));
+
+ return result;
+}
+
+//----------------------------------------------------------------------------------
+// Module Functions Definition - Vector2 math
+//----------------------------------------------------------------------------------
+
+// Vector with components value 0.0f
+RMAPI Vector2 Vector2Zero(void)
+{
+ Vector2 result = { 0.0f, 0.0f };
+
+ return result;
+}
+
+// Vector with components value 1.0f
+RMAPI Vector2 Vector2One(void)
+{
+ Vector2 result = { 1.0f, 1.0f };
+
+ return result;
+}
+
+// Add two vectors (v1 + v2)
+RMAPI Vector2 Vector2Add(Vector2 v1, Vector2 v2)
+{
+ Vector2 result = { v1.x + v2.x, v1.y + v2.y };
+
+ return result;
+}
+
+// Add vector and float value
+RMAPI Vector2 Vector2AddValue(Vector2 v, float add)
+{
+ Vector2 result = { v.x + add, v.y + add };
+
+ return result;
+}
+
+// Subtract two vectors (v1 - v2)
+RMAPI Vector2 Vector2Subtract(Vector2 v1, Vector2 v2)
+{
+ Vector2 result = { v1.x - v2.x, v1.y - v2.y };
+
+ return result;
+}
+
+// Subtract vector by float value
+RMAPI Vector2 Vector2SubtractValue(Vector2 v, float sub)
+{
+ Vector2 result = { v.x - sub, v.y - sub };
+
+ return result;
+}
+
+// Calculate vector length
+RMAPI float Vector2Length(Vector2 v)
+{
+ float result = sqrtf((v.x*v.x) + (v.y*v.y));
+
+ return result;
+}
+
+// Calculate vector square length
+RMAPI float Vector2LengthSqr(Vector2 v)
+{
+ float result = (v.x*v.x) + (v.y*v.y);
+
+ return result;
+}
+
+// Calculate two vectors dot product
+RMAPI float Vector2DotProduct(Vector2 v1, Vector2 v2)
+{
+ float result = (v1.x*v2.x + v1.y*v2.y);
+
+ return result;
+}
+
+// Calculate distance between two vectors
+RMAPI float Vector2Distance(Vector2 v1, Vector2 v2)
+{
+ float result = sqrtf((v1.x - v2.x)*(v1.x - v2.x) + (v1.y - v2.y)*(v1.y - v2.y));
+
+ return result;
+}
+
+// Calculate square distance between two vectors
+RMAPI float Vector2DistanceSqr(Vector2 v1, Vector2 v2)
+{
+ float result = ((v1.x - v2.x)*(v1.x - v2.x) + (v1.y - v2.y)*(v1.y - v2.y));
+
+ return result;
+}
+
+// Calculate angle between two vectors
+// NOTE: Angle is calculated from origin point (0, 0)
+RMAPI float Vector2Angle(Vector2 v1, Vector2 v2)
+{
+ float result = 0.0f;
+
+ float dot = v1.x*v2.x + v1.y*v2.y;
+ float det = v1.x*v2.y - v1.y*v2.x;
+
+ result = atan2f(det, dot);
+
+ return result;
+}
+
+// Calculate angle defined by a two vectors line
+// NOTE: Parameters need to be normalized
+// Current implementation should be aligned with glm::angle
+RMAPI float Vector2LineAngle(Vector2 start, Vector2 end)
+{
+ float result = 0.0f;
+
+ // TODO(10/9/2023): Currently angles move clockwise, determine if this is wanted behavior
+ result = -atan2f(end.y - start.y, end.x - start.x);
+
+ return result;
+}
+
+// Scale vector (multiply by value)
+RMAPI Vector2 Vector2Scale(Vector2 v, float scale)
+{
+ Vector2 result = { v.x*scale, v.y*scale };
+
+ return result;
+}
+
+// Multiply vector by vector
+RMAPI Vector2 Vector2Multiply(Vector2 v1, Vector2 v2)
+{
+ Vector2 result = { v1.x*v2.x, v1.y*v2.y };
+
+ return result;
+}
+
+// Negate vector
+RMAPI Vector2 Vector2Negate(Vector2 v)
+{
+ Vector2 result = { -v.x, -v.y };
+
+ return result;
+}
+
+// Divide vector by vector
+RMAPI Vector2 Vector2Divide(Vector2 v1, Vector2 v2)
+{
+ Vector2 result = { v1.x/v2.x, v1.y/v2.y };
+
+ return result;
+}
+
+// Normalize provided vector
+RMAPI Vector2 Vector2Normalize(Vector2 v)
+{
+ Vector2 result = { 0 };
+ float length = sqrtf((v.x*v.x) + (v.y*v.y));
+
+ if (length > 0)
+ {
+ float ilength = 1.0f/length;
+ result.x = v.x*ilength;
+ result.y = v.y*ilength;
+ }
+
+ return result;
+}
+
+// Transforms a Vector2 by a given Matrix
+RMAPI Vector2 Vector2Transform(Vector2 v, Matrix mat)
+{
+ Vector2 result = { 0 };
+
+ float x = v.x;
+ float y = v.y;
+ float z = 0;
+
+ result.x = mat.m0*x + mat.m4*y + mat.m8*z + mat.m12;
+ result.y = mat.m1*x + mat.m5*y + mat.m9*z + mat.m13;
+
+ return result;
+}
+
+// Calculate linear interpolation between two vectors
+RMAPI Vector2 Vector2Lerp(Vector2 v1, Vector2 v2, float amount)
+{
+ Vector2 result = { 0 };
+
+ result.x = v1.x + amount*(v2.x - v1.x);
+ result.y = v1.y + amount*(v2.y - v1.y);
+
+ return result;
+}
+
+// Calculate reflected vector to normal
+RMAPI Vector2 Vector2Reflect(Vector2 v, Vector2 normal)
+{
+ Vector2 result = { 0 };
+
+ float dotProduct = (v.x*normal.x + v.y*normal.y); // Dot product
+
+ result.x = v.x - (2.0f*normal.x)*dotProduct;
+ result.y = v.y - (2.0f*normal.y)*dotProduct;
+
+ return result;
+}
+
+// Rotate vector by angle
+RMAPI Vector2 Vector2Rotate(Vector2 v, float angle)
+{
+ Vector2 result = { 0 };
+
+ float cosres = cosf(angle);
+ float sinres = sinf(angle);
+
+ result.x = v.x*cosres - v.y*sinres;
+ result.y = v.x*sinres + v.y*cosres;
+
+ return result;
+}
+
+// Move Vector towards target
+RMAPI Vector2 Vector2MoveTowards(Vector2 v, Vector2 target, float maxDistance)
+{
+ Vector2 result = { 0 };
+
+ float dx = target.x - v.x;
+ float dy = target.y - v.y;
+ float value = (dx*dx) + (dy*dy);
+
+ if ((value == 0) || ((maxDistance >= 0) && (value <= maxDistance*maxDistance))) return target;
+
+ float dist = sqrtf(value);
+
+ result.x = v.x + dx/dist*maxDistance;
+ result.y = v.y + dy/dist*maxDistance;
+
+ return result;
+}
+
+// Invert the given vector
+RMAPI Vector2 Vector2Invert(Vector2 v)
+{
+ Vector2 result = { 1.0f/v.x, 1.0f/v.y };
+
+ return result;
+}
+
+// Clamp the components of the vector between
+// min and max values specified by the given vectors
+RMAPI Vector2 Vector2Clamp(Vector2 v, Vector2 min, Vector2 max)
+{
+ Vector2 result = { 0 };
+
+ result.x = fminf(max.x, fmaxf(min.x, v.x));
+ result.y = fminf(max.y, fmaxf(min.y, v.y));
+
+ return result;
+}
+
+// Clamp the magnitude of the vector between two min and max values
+RMAPI Vector2 Vector2ClampValue(Vector2 v, float min, float max)
+{
+ Vector2 result = v;
+
+ float length = (v.x*v.x) + (v.y*v.y);
+ if (length > 0.0f)
+ {
+ length = sqrtf(length);
+
+ float scale = 1; // By default, 1 as the neutral element.
+ if (length < min)
+ {
+ scale = min/length;
+ }
+ else if (length > max)
+ {
+ scale = max/length;
+ }
+
+ result.x = v.x*scale;
+ result.y = v.y*scale;
+ }
+
+ return result;
+}
+
+// Check whether two given vectors are almost equal
+RMAPI int Vector2Equals(Vector2 p, Vector2 q)
+{
+#if !defined(EPSILON)
+ #define EPSILON 0.000001f
+#endif
+
+ int result = ((fabsf(p.x - q.x)) <= (EPSILON*fmaxf(1.0f, fmaxf(fabsf(p.x), fabsf(q.x))))) &&
+ ((fabsf(p.y - q.y)) <= (EPSILON*fmaxf(1.0f, fmaxf(fabsf(p.y), fabsf(q.y)))));
+
+ return result;
+}
+
+//----------------------------------------------------------------------------------
+// Module Functions Definition - Vector3 math
+//----------------------------------------------------------------------------------
+
+// Vector with components value 0.0f
+RMAPI Vector3 Vector3Zero(void)
+{
+ Vector3 result = { 0.0f, 0.0f, 0.0f };
+
+ return result;
+}
+
+// Vector with components value 1.0f
+RMAPI Vector3 Vector3One(void)
+{
+ Vector3 result = { 1.0f, 1.0f, 1.0f };
+
+ return result;
+}
+
+// Add two vectors
+RMAPI Vector3 Vector3Add(Vector3 v1, Vector3 v2)
+{
+ Vector3 result = { v1.x + v2.x, v1.y + v2.y, v1.z + v2.z };
+
+ return result;
+}
+
+// Add vector and float value
+RMAPI Vector3 Vector3AddValue(Vector3 v, float add)
+{
+ Vector3 result = { v.x + add, v.y + add, v.z + add };
+
+ return result;
+}
+
+// Subtract two vectors
+RMAPI Vector3 Vector3Subtract(Vector3 v1, Vector3 v2)
+{
+ Vector3 result = { v1.x - v2.x, v1.y - v2.y, v1.z - v2.z };
+
+ return result;
+}
+
+// Subtract vector by float value
+RMAPI Vector3 Vector3SubtractValue(Vector3 v, float sub)
+{
+ Vector3 result = { v.x - sub, v.y - sub, v.z - sub };
+
+ return result;
+}
+
+// Multiply vector by scalar
+RMAPI Vector3 Vector3Scale(Vector3 v, float scalar)
+{
+ Vector3 result = { v.x*scalar, v.y*scalar, v.z*scalar };
+
+ return result;
+}
+
+// Multiply vector by vector
+RMAPI Vector3 Vector3Multiply(Vector3 v1, Vector3 v2)
+{
+ Vector3 result = { v1.x*v2.x, v1.y*v2.y, v1.z*v2.z };
+
+ return result;
+}
+
+// Calculate two vectors cross product
+RMAPI Vector3 Vector3CrossProduct(Vector3 v1, Vector3 v2)
+{
+ Vector3 result = { v1.y*v2.z - v1.z*v2.y, v1.z*v2.x - v1.x*v2.z, v1.x*v2.y - v1.y*v2.x };
+
+ return result;
+}
+
+// Calculate one vector perpendicular vector
+RMAPI Vector3 Vector3Perpendicular(Vector3 v)
+{
+ Vector3 result = { 0 };
+
+ float min = fabsf(v.x);
+ Vector3 cardinalAxis = {1.0f, 0.0f, 0.0f};
+
+ if (fabsf(v.y) < min)
+ {
+ min = fabsf(v.y);
+ Vector3 tmp = {0.0f, 1.0f, 0.0f};
+ cardinalAxis = tmp;
+ }
+
+ if (fabsf(v.z) < min)
+ {
+ Vector3 tmp = {0.0f, 0.0f, 1.0f};
+ cardinalAxis = tmp;
+ }
+
+ // Cross product between vectors
+ result.x = v.y*cardinalAxis.z - v.z*cardinalAxis.y;
+ result.y = v.z*cardinalAxis.x - v.x*cardinalAxis.z;
+ result.z = v.x*cardinalAxis.y - v.y*cardinalAxis.x;
+
+ return result;
+}
+
+// Calculate vector length
+RMAPI float Vector3Length(const Vector3 v)
+{
+ float result = sqrtf(v.x*v.x + v.y*v.y + v.z*v.z);
+
+ return result;
+}
+
+// Calculate vector square length
+RMAPI float Vector3LengthSqr(const Vector3 v)
+{
+ float result = v.x*v.x + v.y*v.y + v.z*v.z;
+
+ return result;
+}
+
+// Calculate two vectors dot product
+RMAPI float Vector3DotProduct(Vector3 v1, Vector3 v2)
+{
+ float result = (v1.x*v2.x + v1.y*v2.y + v1.z*v2.z);
+
+ return result;
+}
+
+// Calculate distance between two vectors
+RMAPI float Vector3Distance(Vector3 v1, Vector3 v2)
+{
+ float result = 0.0f;
+
+ float dx = v2.x - v1.x;
+ float dy = v2.y - v1.y;
+ float dz = v2.z - v1.z;
+ result = sqrtf(dx*dx + dy*dy + dz*dz);
+
+ return result;
+}
+
+// Calculate square distance between two vectors
+RMAPI float Vector3DistanceSqr(Vector3 v1, Vector3 v2)
+{
+ float result = 0.0f;
+
+ float dx = v2.x - v1.x;
+ float dy = v2.y - v1.y;
+ float dz = v2.z - v1.z;
+ result = dx*dx + dy*dy + dz*dz;
+
+ return result;
+}
+
+// Calculate angle between two vectors
+RMAPI float Vector3Angle(Vector3 v1, Vector3 v2)
+{
+ float result = 0.0f;
+
+ Vector3 cross = { v1.y*v2.z - v1.z*v2.y, v1.z*v2.x - v1.x*v2.z, v1.x*v2.y - v1.y*v2.x };
+ float len = sqrtf(cross.x*cross.x + cross.y*cross.y + cross.z*cross.z);
+ float dot = (v1.x*v2.x + v1.y*v2.y + v1.z*v2.z);
+ result = atan2f(len, dot);
+
+ return result;
+}
+
+// Negate provided vector (invert direction)
+RMAPI Vector3 Vector3Negate(Vector3 v)
+{
+ Vector3 result = { -v.x, -v.y, -v.z };
+
+ return result;
+}
+
+// Divide vector by vector
+RMAPI Vector3 Vector3Divide(Vector3 v1, Vector3 v2)
+{
+ Vector3 result = { v1.x/v2.x, v1.y/v2.y, v1.z/v2.z };
+
+ return result;
+}
+
+// Normalize provided vector
+RMAPI Vector3 Vector3Normalize(Vector3 v)
+{
+ Vector3 result = v;
+
+ float length = sqrtf(v.x*v.x + v.y*v.y + v.z*v.z);
+ if (length != 0.0f)
+ {
+ float ilength = 1.0f/length;
+
+ result.x *= ilength;
+ result.y *= ilength;
+ result.z *= ilength;
+ }
+
+ return result;
+}
+
+//Calculate the projection of the vector v1 on to v2
+RMAPI Vector3 Vector3Project(Vector3 v1, Vector3 v2)
+{
+ Vector3 result = { 0 };
+
+ float v1dv2 = (v1.x*v2.x + v1.y*v2.y + v1.z*v2.z);
+ float v2dv2 = (v2.x*v2.x + v2.y*v2.y + v2.z*v2.z);
+
+ float mag = v1dv2/v2dv2;
+
+ result.x = v2.x*mag;
+ result.y = v2.y*mag;
+ result.z = v2.z*mag;
+
+ return result;
+}
+
+//Calculate the rejection of the vector v1 on to v2
+RMAPI Vector3 Vector3Reject(Vector3 v1, Vector3 v2)
+{
+ Vector3 result = { 0 };
+
+ float v1dv2 = (v1.x*v2.x + v1.y*v2.y + v1.z*v2.z);
+ float v2dv2 = (v2.x*v2.x + v2.y*v2.y + v2.z*v2.z);
+
+ float mag = v1dv2/v2dv2;
+
+ result.x = v1.x - (v2.x*mag);
+ result.y = v1.y - (v2.y*mag);
+ result.z = v1.z - (v2.z*mag);
+
+ return result;
+}
+
+// Orthonormalize provided vectors
+// Makes vectors normalized and orthogonal to each other
+// Gram-Schmidt function implementation
+RMAPI void Vector3OrthoNormalize(Vector3 *v1, Vector3 *v2)
+{
+ float length = 0.0f;
+ float ilength = 0.0f;
+
+ // Vector3Normalize(*v1);
+ Vector3 v = *v1;
+ length = sqrtf(v.x*v.x + v.y*v.y + v.z*v.z);
+ if (length == 0.0f) length = 1.0f;
+ ilength = 1.0f/length;
+ v1->x *= ilength;
+ v1->y *= ilength;
+ v1->z *= ilength;
+
+ // Vector3CrossProduct(*v1, *v2)
+ Vector3 vn1 = { v1->y*v2->z - v1->z*v2->y, v1->z*v2->x - v1->x*v2->z, v1->x*v2->y - v1->y*v2->x };
+
+ // Vector3Normalize(vn1);
+ v = vn1;
+ length = sqrtf(v.x*v.x + v.y*v.y + v.z*v.z);
+ if (length == 0.0f) length = 1.0f;
+ ilength = 1.0f/length;
+ vn1.x *= ilength;
+ vn1.y *= ilength;
+ vn1.z *= ilength;
+
+ // Vector3CrossProduct(vn1, *v1)
+ Vector3 vn2 = { vn1.y*v1->z - vn1.z*v1->y, vn1.z*v1->x - vn1.x*v1->z, vn1.x*v1->y - vn1.y*v1->x };
+
+ *v2 = vn2;
+}
+
+// Transforms a Vector3 by a given Matrix
+RMAPI Vector3 Vector3Transform(Vector3 v, Matrix mat)
+{
+ Vector3 result = { 0 };
+
+ float x = v.x;
+ float y = v.y;
+ float z = v.z;
+
+ result.x = mat.m0*x + mat.m4*y + mat.m8*z + mat.m12;
+ result.y = mat.m1*x + mat.m5*y + mat.m9*z + mat.m13;
+ result.z = mat.m2*x + mat.m6*y + mat.m10*z + mat.m14;
+
+ return result;
+}
+
+// Transform a vector by quaternion rotation
+RMAPI Vector3 Vector3RotateByQuaternion(Vector3 v, Quaternion q)
+{
+ Vector3 result = { 0 };
+
+ result.x = v.x*(q.x*q.x + q.w*q.w - q.y*q.y - q.z*q.z) + v.y*(2*q.x*q.y - 2*q.w*q.z) + v.z*(2*q.x*q.z + 2*q.w*q.y);
+ result.y = v.x*(2*q.w*q.z + 2*q.x*q.y) + v.y*(q.w*q.w - q.x*q.x + q.y*q.y - q.z*q.z) + v.z*(-2*q.w*q.x + 2*q.y*q.z);
+ result.z = v.x*(-2*q.w*q.y + 2*q.x*q.z) + v.y*(2*q.w*q.x + 2*q.y*q.z)+ v.z*(q.w*q.w - q.x*q.x - q.y*q.y + q.z*q.z);
+
+ return result;
+}
+
+// Rotates a vector around an axis
+RMAPI Vector3 Vector3RotateByAxisAngle(Vector3 v, Vector3 axis, float angle)
+{
+ // Using Euler-Rodrigues Formula
+ // Ref.: https://en.wikipedia.org/w/index.php?title=Euler%E2%80%93Rodrigues_formula
+
+ Vector3 result = v;
+
+ // Vector3Normalize(axis);
+ float length = sqrtf(axis.x*axis.x + axis.y*axis.y + axis.z*axis.z);
+ if (length == 0.0f) length = 1.0f;
+ float ilength = 1.0f/length;
+ axis.x *= ilength;
+ axis.y *= ilength;
+ axis.z *= ilength;
+
+ angle /= 2.0f;
+ float a = sinf(angle);
+ float b = axis.x*a;
+ float c = axis.y*a;
+ float d = axis.z*a;
+ a = cosf(angle);
+ Vector3 w = { b, c, d };
+
+ // Vector3CrossProduct(w, v)
+ Vector3 wv = { w.y*v.z - w.z*v.y, w.z*v.x - w.x*v.z, w.x*v.y - w.y*v.x };
+
+ // Vector3CrossProduct(w, wv)
+ Vector3 wwv = { w.y*wv.z - w.z*wv.y, w.z*wv.x - w.x*wv.z, w.x*wv.y - w.y*wv.x };
+
+ // Vector3Scale(wv, 2*a)
+ a *= 2;
+ wv.x *= a;
+ wv.y *= a;
+ wv.z *= a;
+
+ // Vector3Scale(wwv, 2)
+ wwv.x *= 2;
+ wwv.y *= 2;
+ wwv.z *= 2;
+
+ result.x += wv.x;
+ result.y += wv.y;
+ result.z += wv.z;
+
+ result.x += wwv.x;
+ result.y += wwv.y;
+ result.z += wwv.z;
+
+ return result;
+}
+
+// Calculate linear interpolation between two vectors
+RMAPI Vector3 Vector3Lerp(Vector3 v1, Vector3 v2, float amount)
+{
+ Vector3 result = { 0 };
+
+ result.x = v1.x + amount*(v2.x - v1.x);
+ result.y = v1.y + amount*(v2.y - v1.y);
+ result.z = v1.z + amount*(v2.z - v1.z);
+
+ return result;
+}
+
+// Calculate reflected vector to normal
+RMAPI Vector3 Vector3Reflect(Vector3 v, Vector3 normal)
+{
+ Vector3 result = { 0 };
+
+ // I is the original vector
+ // N is the normal of the incident plane
+ // R = I - (2*N*(DotProduct[I, N]))
+
+ float dotProduct = (v.x*normal.x + v.y*normal.y + v.z*normal.z);
+
+ result.x = v.x - (2.0f*normal.x)*dotProduct;
+ result.y = v.y - (2.0f*normal.y)*dotProduct;
+ result.z = v.z - (2.0f*normal.z)*dotProduct;
+
+ return result;
+}
+
+// Get min value for each pair of components
+RMAPI Vector3 Vector3Min(Vector3 v1, Vector3 v2)
+{
+ Vector3 result = { 0 };
+
+ result.x = fminf(v1.x, v2.x);
+ result.y = fminf(v1.y, v2.y);
+ result.z = fminf(v1.z, v2.z);
+
+ return result;
+}
+
+// Get max value for each pair of components
+RMAPI Vector3 Vector3Max(Vector3 v1, Vector3 v2)
+{
+ Vector3 result = { 0 };
+
+ result.x = fmaxf(v1.x, v2.x);
+ result.y = fmaxf(v1.y, v2.y);
+ result.z = fmaxf(v1.z, v2.z);
+
+ return result;
+}
+
+// Compute barycenter coordinates (u, v, w) for point p with respect to triangle (a, b, c)
+// NOTE: Assumes P is on the plane of the triangle
+RMAPI Vector3 Vector3Barycenter(Vector3 p, Vector3 a, Vector3 b, Vector3 c)
+{
+ Vector3 result = { 0 };
+
+ Vector3 v0 = { b.x - a.x, b.y - a.y, b.z - a.z }; // Vector3Subtract(b, a)
+ Vector3 v1 = { c.x - a.x, c.y - a.y, c.z - a.z }; // Vector3Subtract(c, a)
+ Vector3 v2 = { p.x - a.x, p.y - a.y, p.z - a.z }; // Vector3Subtract(p, a)
+ float d00 = (v0.x*v0.x + v0.y*v0.y + v0.z*v0.z); // Vector3DotProduct(v0, v0)
+ float d01 = (v0.x*v1.x + v0.y*v1.y + v0.z*v1.z); // Vector3DotProduct(v0, v1)
+ float d11 = (v1.x*v1.x + v1.y*v1.y + v1.z*v1.z); // Vector3DotProduct(v1, v1)
+ float d20 = (v2.x*v0.x + v2.y*v0.y + v2.z*v0.z); // Vector3DotProduct(v2, v0)
+ float d21 = (v2.x*v1.x + v2.y*v1.y + v2.z*v1.z); // Vector3DotProduct(v2, v1)
+
+ float denom = d00*d11 - d01*d01;
+
+ result.y = (d11*d20 - d01*d21)/denom;
+ result.z = (d00*d21 - d01*d20)/denom;
+ result.x = 1.0f - (result.z + result.y);
+
+ return result;
+}
+
+// Projects a Vector3 from screen space into object space
+// NOTE: We are avoiding calling other raymath functions despite available
+RMAPI Vector3 Vector3Unproject(Vector3 source, Matrix projection, Matrix view)
+{
+ Vector3 result = { 0 };
+
+ // Calculate unprojected matrix (multiply view matrix by projection matrix) and invert it
+ Matrix matViewProj = { // MatrixMultiply(view, projection);
+ view.m0*projection.m0 + view.m1*projection.m4 + view.m2*projection.m8 + view.m3*projection.m12,
+ view.m0*projection.m1 + view.m1*projection.m5 + view.m2*projection.m9 + view.m3*projection.m13,
+ view.m0*projection.m2 + view.m1*projection.m6 + view.m2*projection.m10 + view.m3*projection.m14,
+ view.m0*projection.m3 + view.m1*projection.m7 + view.m2*projection.m11 + view.m3*projection.m15,
+ view.m4*projection.m0 + view.m5*projection.m4 + view.m6*projection.m8 + view.m7*projection.m12,
+ view.m4*projection.m1 + view.m5*projection.m5 + view.m6*projection.m9 + view.m7*projection.m13,
+ view.m4*projection.m2 + view.m5*projection.m6 + view.m6*projection.m10 + view.m7*projection.m14,
+ view.m4*projection.m3 + view.m5*projection.m7 + view.m6*projection.m11 + view.m7*projection.m15,
+ view.m8*projection.m0 + view.m9*projection.m4 + view.m10*projection.m8 + view.m11*projection.m12,
+ view.m8*projection.m1 + view.m9*projection.m5 + view.m10*projection.m9 + view.m11*projection.m13,
+ view.m8*projection.m2 + view.m9*projection.m6 + view.m10*projection.m10 + view.m11*projection.m14,
+ view.m8*projection.m3 + view.m9*projection.m7 + view.m10*projection.m11 + view.m11*projection.m15,
+ view.m12*projection.m0 + view.m13*projection.m4 + view.m14*projection.m8 + view.m15*projection.m12,
+ view.m12*projection.m1 + view.m13*projection.m5 + view.m14*projection.m9 + view.m15*projection.m13,
+ view.m12*projection.m2 + view.m13*projection.m6 + view.m14*projection.m10 + view.m15*projection.m14,
+ view.m12*projection.m3 + view.m13*projection.m7 + view.m14*projection.m11 + view.m15*projection.m15 };
+
+ // Calculate inverted matrix -> MatrixInvert(matViewProj);
+ // Cache the matrix values (speed optimization)
+ float a00 = matViewProj.m0, a01 = matViewProj.m1, a02 = matViewProj.m2, a03 = matViewProj.m3;
+ float a10 = matViewProj.m4, a11 = matViewProj.m5, a12 = matViewProj.m6, a13 = matViewProj.m7;
+ float a20 = matViewProj.m8, a21 = matViewProj.m9, a22 = matViewProj.m10, a23 = matViewProj.m11;
+ float a30 = matViewProj.m12, a31 = matViewProj.m13, a32 = matViewProj.m14, a33 = matViewProj.m15;
+
+ float b00 = a00*a11 - a01*a10;
+ float b01 = a00*a12 - a02*a10;
+ float b02 = a00*a13 - a03*a10;
+ float b03 = a01*a12 - a02*a11;
+ float b04 = a01*a13 - a03*a11;
+ float b05 = a02*a13 - a03*a12;
+ float b06 = a20*a31 - a21*a30;
+ float b07 = a20*a32 - a22*a30;
+ float b08 = a20*a33 - a23*a30;
+ float b09 = a21*a32 - a22*a31;
+ float b10 = a21*a33 - a23*a31;
+ float b11 = a22*a33 - a23*a32;
+
+ // Calculate the invert determinant (inlined to avoid double-caching)
+ float invDet = 1.0f/(b00*b11 - b01*b10 + b02*b09 + b03*b08 - b04*b07 + b05*b06);
+
+ Matrix matViewProjInv = {
+ (a11*b11 - a12*b10 + a13*b09)*invDet,
+ (-a01*b11 + a02*b10 - a03*b09)*invDet,
+ (a31*b05 - a32*b04 + a33*b03)*invDet,
+ (-a21*b05 + a22*b04 - a23*b03)*invDet,
+ (-a10*b11 + a12*b08 - a13*b07)*invDet,
+ (a00*b11 - a02*b08 + a03*b07)*invDet,
+ (-a30*b05 + a32*b02 - a33*b01)*invDet,
+ (a20*b05 - a22*b02 + a23*b01)*invDet,
+ (a10*b10 - a11*b08 + a13*b06)*invDet,
+ (-a00*b10 + a01*b08 - a03*b06)*invDet,
+ (a30*b04 - a31*b02 + a33*b00)*invDet,
+ (-a20*b04 + a21*b02 - a23*b00)*invDet,
+ (-a10*b09 + a11*b07 - a12*b06)*invDet,
+ (a00*b09 - a01*b07 + a02*b06)*invDet,
+ (-a30*b03 + a31*b01 - a32*b00)*invDet,
+ (a20*b03 - a21*b01 + a22*b00)*invDet };
+
+ // Create quaternion from source point
+ Quaternion quat = { source.x, source.y, source.z, 1.0f };
+
+ // Multiply quat point by unprojecte matrix
+ Quaternion qtransformed = { // QuaternionTransform(quat, matViewProjInv)
+ matViewProjInv.m0*quat.x + matViewProjInv.m4*quat.y + matViewProjInv.m8*quat.z + matViewProjInv.m12*quat.w,
+ matViewProjInv.m1*quat.x + matViewProjInv.m5*quat.y + matViewProjInv.m9*quat.z + matViewProjInv.m13*quat.w,
+ matViewProjInv.m2*quat.x + matViewProjInv.m6*quat.y + matViewProjInv.m10*quat.z + matViewProjInv.m14*quat.w,
+ matViewProjInv.m3*quat.x + matViewProjInv.m7*quat.y + matViewProjInv.m11*quat.z + matViewProjInv.m15*quat.w };
+
+ // Normalized world points in vectors
+ result.x = qtransformed.x/qtransformed.w;
+ result.y = qtransformed.y/qtransformed.w;
+ result.z = qtransformed.z/qtransformed.w;
+
+ return result;
+}
+
+// Get Vector3 as float array
+RMAPI float3 Vector3ToFloatV(Vector3 v)
+{
+ float3 buffer = { 0 };
+
+ buffer.v[0] = v.x;
+ buffer.v[1] = v.y;
+ buffer.v[2] = v.z;
+
+ return buffer;
+}
+
+// Invert the given vector
+RMAPI Vector3 Vector3Invert(Vector3 v)
+{
+ Vector3 result = { 1.0f/v.x, 1.0f/v.y, 1.0f/v.z };
+
+ return result;
+}
+
+// Clamp the components of the vector between
+// min and max values specified by the given vectors
+RMAPI Vector3 Vector3Clamp(Vector3 v, Vector3 min, Vector3 max)
+{
+ Vector3 result = { 0 };
+
+ result.x = fminf(max.x, fmaxf(min.x, v.x));
+ result.y = fminf(max.y, fmaxf(min.y, v.y));
+ result.z = fminf(max.z, fmaxf(min.z, v.z));
+
+ return result;
+}
+
+// Clamp the magnitude of the vector between two values
+RMAPI Vector3 Vector3ClampValue(Vector3 v, float min, float max)
+{
+ Vector3 result = v;
+
+ float length = (v.x*v.x) + (v.y*v.y) + (v.z*v.z);
+ if (length > 0.0f)
+ {
+ length = sqrtf(length);
+
+ float scale = 1; // By default, 1 as the neutral element.
+ if (length < min)
+ {
+ scale = min/length;
+ }
+ else if (length > max)
+ {
+ scale = max/length;
+ }
+
+ result.x = v.x*scale;
+ result.y = v.y*scale;
+ result.z = v.z*scale;
+ }
+
+ return result;
+}
+
+// Check whether two given vectors are almost equal
+RMAPI int Vector3Equals(Vector3 p, Vector3 q)
+{
+#if !defined(EPSILON)
+ #define EPSILON 0.000001f
+#endif
+
+ int result = ((fabsf(p.x - q.x)) <= (EPSILON*fmaxf(1.0f, fmaxf(fabsf(p.x), fabsf(q.x))))) &&
+ ((fabsf(p.y - q.y)) <= (EPSILON*fmaxf(1.0f, fmaxf(fabsf(p.y), fabsf(q.y))))) &&
+ ((fabsf(p.z - q.z)) <= (EPSILON*fmaxf(1.0f, fmaxf(fabsf(p.z), fabsf(q.z)))));
+
+ return result;
+}
+
+// Compute the direction of a refracted ray
+// v: normalized direction of the incoming ray
+// n: normalized normal vector of the interface of two optical media
+// r: ratio of the refractive index of the medium from where the ray comes
+// to the refractive index of the medium on the other side of the surface
+RMAPI Vector3 Vector3Refract(Vector3 v, Vector3 n, float r)
+{
+ Vector3 result = { 0 };
+
+ float dot = v.x*n.x + v.y*n.y + v.z*n.z;
+ float d = 1.0f - r*r*(1.0f - dot*dot);
+
+ if (d >= 0.0f)
+ {
+ d = sqrtf(d);
+ v.x = r*v.x - (r*dot + d)*n.x;
+ v.y = r*v.y - (r*dot + d)*n.y;
+ v.z = r*v.z - (r*dot + d)*n.z;
+
+ result = v;
+ }
+
+ return result;
+}
+
+//----------------------------------------------------------------------------------
+// Module Functions Definition - Matrix math
+//----------------------------------------------------------------------------------
+
+// Compute matrix determinant
+RMAPI float MatrixDeterminant(Matrix mat)
+{
+ float result = 0.0f;
+
+ // Cache the matrix values (speed optimization)
+ float a00 = mat.m0, a01 = mat.m1, a02 = mat.m2, a03 = mat.m3;
+ float a10 = mat.m4, a11 = mat.m5, a12 = mat.m6, a13 = mat.m7;
+ float a20 = mat.m8, a21 = mat.m9, a22 = mat.m10, a23 = mat.m11;
+ float a30 = mat.m12, a31 = mat.m13, a32 = mat.m14, a33 = mat.m15;
+
+ result = a30*a21*a12*a03 - a20*a31*a12*a03 - a30*a11*a22*a03 + a10*a31*a22*a03 +
+ a20*a11*a32*a03 - a10*a21*a32*a03 - a30*a21*a02*a13 + a20*a31*a02*a13 +
+ a30*a01*a22*a13 - a00*a31*a22*a13 - a20*a01*a32*a13 + a00*a21*a32*a13 +
+ a30*a11*a02*a23 - a10*a31*a02*a23 - a30*a01*a12*a23 + a00*a31*a12*a23 +
+ a10*a01*a32*a23 - a00*a11*a32*a23 - a20*a11*a02*a33 + a10*a21*a02*a33 +
+ a20*a01*a12*a33 - a00*a21*a12*a33 - a10*a01*a22*a33 + a00*a11*a22*a33;
+
+ return result;
+}
+
+// Get the trace of the matrix (sum of the values along the diagonal)
+RMAPI float MatrixTrace(Matrix mat)
+{
+ float result = (mat.m0 + mat.m5 + mat.m10 + mat.m15);
+
+ return result;
+}
+
+// Transposes provided matrix
+RMAPI Matrix MatrixTranspose(Matrix mat)
+{
+ Matrix result = { 0 };
+
+ result.m0 = mat.m0;
+ result.m1 = mat.m4;
+ result.m2 = mat.m8;
+ result.m3 = mat.m12;
+ result.m4 = mat.m1;
+ result.m5 = mat.m5;
+ result.m6 = mat.m9;
+ result.m7 = mat.m13;
+ result.m8 = mat.m2;
+ result.m9 = mat.m6;
+ result.m10 = mat.m10;
+ result.m11 = mat.m14;
+ result.m12 = mat.m3;
+ result.m13 = mat.m7;
+ result.m14 = mat.m11;
+ result.m15 = mat.m15;
+
+ return result;
+}
+
+// Invert provided matrix
+RMAPI Matrix MatrixInvert(Matrix mat)
+{
+ Matrix result = { 0 };
+
+ // Cache the matrix values (speed optimization)
+ float a00 = mat.m0, a01 = mat.m1, a02 = mat.m2, a03 = mat.m3;
+ float a10 = mat.m4, a11 = mat.m5, a12 = mat.m6, a13 = mat.m7;
+ float a20 = mat.m8, a21 = mat.m9, a22 = mat.m10, a23 = mat.m11;
+ float a30 = mat.m12, a31 = mat.m13, a32 = mat.m14, a33 = mat.m15;
+
+ float b00 = a00*a11 - a01*a10;
+ float b01 = a00*a12 - a02*a10;
+ float b02 = a00*a13 - a03*a10;
+ float b03 = a01*a12 - a02*a11;
+ float b04 = a01*a13 - a03*a11;
+ float b05 = a02*a13 - a03*a12;
+ float b06 = a20*a31 - a21*a30;
+ float b07 = a20*a32 - a22*a30;
+ float b08 = a20*a33 - a23*a30;
+ float b09 = a21*a32 - a22*a31;
+ float b10 = a21*a33 - a23*a31;
+ float b11 = a22*a33 - a23*a32;
+
+ // Calculate the invert determinant (inlined to avoid double-caching)
+ float invDet = 1.0f/(b00*b11 - b01*b10 + b02*b09 + b03*b08 - b04*b07 + b05*b06);
+
+ result.m0 = (a11*b11 - a12*b10 + a13*b09)*invDet;
+ result.m1 = (-a01*b11 + a02*b10 - a03*b09)*invDet;
+ result.m2 = (a31*b05 - a32*b04 + a33*b03)*invDet;
+ result.m3 = (-a21*b05 + a22*b04 - a23*b03)*invDet;
+ result.m4 = (-a10*b11 + a12*b08 - a13*b07)*invDet;
+ result.m5 = (a00*b11 - a02*b08 + a03*b07)*invDet;
+ result.m6 = (-a30*b05 + a32*b02 - a33*b01)*invDet;
+ result.m7 = (a20*b05 - a22*b02 + a23*b01)*invDet;
+ result.m8 = (a10*b10 - a11*b08 + a13*b06)*invDet;
+ result.m9 = (-a00*b10 + a01*b08 - a03*b06)*invDet;
+ result.m10 = (a30*b04 - a31*b02 + a33*b00)*invDet;
+ result.m11 = (-a20*b04 + a21*b02 - a23*b00)*invDet;
+ result.m12 = (-a10*b09 + a11*b07 - a12*b06)*invDet;
+ result.m13 = (a00*b09 - a01*b07 + a02*b06)*invDet;
+ result.m14 = (-a30*b03 + a31*b01 - a32*b00)*invDet;
+ result.m15 = (a20*b03 - a21*b01 + a22*b00)*invDet;
+
+ return result;
+}
+
+// Get identity matrix
+RMAPI Matrix MatrixIdentity(void)
+{
+ Matrix result = { 1.0f, 0.0f, 0.0f, 0.0f,
+ 0.0f, 1.0f, 0.0f, 0.0f,
+ 0.0f, 0.0f, 1.0f, 0.0f,
+ 0.0f, 0.0f, 0.0f, 1.0f };
+
+ return result;
+}
+
+// Add two matrices
+RMAPI Matrix MatrixAdd(Matrix left, Matrix right)
+{
+ Matrix result = { 0 };
+
+ result.m0 = left.m0 + right.m0;
+ result.m1 = left.m1 + right.m1;
+ result.m2 = left.m2 + right.m2;
+ result.m3 = left.m3 + right.m3;
+ result.m4 = left.m4 + right.m4;
+ result.m5 = left.m5 + right.m5;
+ result.m6 = left.m6 + right.m6;
+ result.m7 = left.m7 + right.m7;
+ result.m8 = left.m8 + right.m8;
+ result.m9 = left.m9 + right.m9;
+ result.m10 = left.m10 + right.m10;
+ result.m11 = left.m11 + right.m11;
+ result.m12 = left.m12 + right.m12;
+ result.m13 = left.m13 + right.m13;
+ result.m14 = left.m14 + right.m14;
+ result.m15 = left.m15 + right.m15;
+
+ return result;
+}
+
+// Subtract two matrices (left - right)
+RMAPI Matrix MatrixSubtract(Matrix left, Matrix right)
+{
+ Matrix result = { 0 };
+
+ result.m0 = left.m0 - right.m0;
+ result.m1 = left.m1 - right.m1;
+ result.m2 = left.m2 - right.m2;
+ result.m3 = left.m3 - right.m3;
+ result.m4 = left.m4 - right.m4;
+ result.m5 = left.m5 - right.m5;
+ result.m6 = left.m6 - right.m6;
+ result.m7 = left.m7 - right.m7;
+ result.m8 = left.m8 - right.m8;
+ result.m9 = left.m9 - right.m9;
+ result.m10 = left.m10 - right.m10;
+ result.m11 = left.m11 - right.m11;
+ result.m12 = left.m12 - right.m12;
+ result.m13 = left.m13 - right.m13;
+ result.m14 = left.m14 - right.m14;
+ result.m15 = left.m15 - right.m15;
+
+ return result;
+}
+
+// Get two matrix multiplication
+// NOTE: When multiplying matrices... the order matters!
+RMAPI Matrix MatrixMultiply(Matrix left, Matrix right)
+{
+ Matrix result = { 0 };
+
+ result.m0 = left.m0*right.m0 + left.m1*right.m4 + left.m2*right.m8 + left.m3*right.m12;
+ result.m1 = left.m0*right.m1 + left.m1*right.m5 + left.m2*right.m9 + left.m3*right.m13;
+ result.m2 = left.m0*right.m2 + left.m1*right.m6 + left.m2*right.m10 + left.m3*right.m14;
+ result.m3 = left.m0*right.m3 + left.m1*right.m7 + left.m2*right.m11 + left.m3*right.m15;
+ result.m4 = left.m4*right.m0 + left.m5*right.m4 + left.m6*right.m8 + left.m7*right.m12;
+ result.m5 = left.m4*right.m1 + left.m5*right.m5 + left.m6*right.m9 + left.m7*right.m13;
+ result.m6 = left.m4*right.m2 + left.m5*right.m6 + left.m6*right.m10 + left.m7*right.m14;
+ result.m7 = left.m4*right.m3 + left.m5*right.m7 + left.m6*right.m11 + left.m7*right.m15;
+ result.m8 = left.m8*right.m0 + left.m9*right.m4 + left.m10*right.m8 + left.m11*right.m12;
+ result.m9 = left.m8*right.m1 + left.m9*right.m5 + left.m10*right.m9 + left.m11*right.m13;
+ result.m10 = left.m8*right.m2 + left.m9*right.m6 + left.m10*right.m10 + left.m11*right.m14;
+ result.m11 = left.m8*right.m3 + left.m9*right.m7 + left.m10*right.m11 + left.m11*right.m15;
+ result.m12 = left.m12*right.m0 + left.m13*right.m4 + left.m14*right.m8 + left.m15*right.m12;
+ result.m13 = left.m12*right.m1 + left.m13*right.m5 + left.m14*right.m9 + left.m15*right.m13;
+ result.m14 = left.m12*right.m2 + left.m13*right.m6 + left.m14*right.m10 + left.m15*right.m14;
+ result.m15 = left.m12*right.m3 + left.m13*right.m7 + left.m14*right.m11 + left.m15*right.m15;
+
+ return result;
+}
+
+// Get translation matrix
+RMAPI Matrix MatrixTranslate(float x, float y, float z)
+{
+ Matrix result = { 1.0f, 0.0f, 0.0f, x,
+ 0.0f, 1.0f, 0.0f, y,
+ 0.0f, 0.0f, 1.0f, z,
+ 0.0f, 0.0f, 0.0f, 1.0f };
+
+ return result;
+}
+
+// Create rotation matrix from axis and angle
+// NOTE: Angle should be provided in radians
+RMAPI Matrix MatrixRotate(Vector3 axis, float angle)
+{
+ Matrix result = { 0 };
+
+ float x = axis.x, y = axis.y, z = axis.z;
+
+ float lengthSquared = x*x + y*y + z*z;
+
+ if ((lengthSquared != 1.0f) && (lengthSquared != 0.0f))
+ {
+ float ilength = 1.0f/sqrtf(lengthSquared);
+ x *= ilength;
+ y *= ilength;
+ z *= ilength;
+ }
+
+ float sinres = sinf(angle);
+ float cosres = cosf(angle);
+ float t = 1.0f - cosres;
+
+ result.m0 = x*x*t + cosres;
+ result.m1 = y*x*t + z*sinres;
+ result.m2 = z*x*t - y*sinres;
+ result.m3 = 0.0f;
+
+ result.m4 = x*y*t - z*sinres;
+ result.m5 = y*y*t + cosres;
+ result.m6 = z*y*t + x*sinres;
+ result.m7 = 0.0f;
+
+ result.m8 = x*z*t + y*sinres;
+ result.m9 = y*z*t - x*sinres;
+ result.m10 = z*z*t + cosres;
+ result.m11 = 0.0f;
+
+ result.m12 = 0.0f;
+ result.m13 = 0.0f;
+ result.m14 = 0.0f;
+ result.m15 = 1.0f;
+
+ return result;
+}
+
+// Get x-rotation matrix
+// NOTE: Angle must be provided in radians
+RMAPI Matrix MatrixRotateX(float angle)
+{
+ Matrix result = { 1.0f, 0.0f, 0.0f, 0.0f,
+ 0.0f, 1.0f, 0.0f, 0.0f,
+ 0.0f, 0.0f, 1.0f, 0.0f,
+ 0.0f, 0.0f, 0.0f, 1.0f }; // MatrixIdentity()
+
+ float cosres = cosf(angle);
+ float sinres = sinf(angle);
+
+ result.m5 = cosres;
+ result.m6 = sinres;
+ result.m9 = -sinres;
+ result.m10 = cosres;
+
+ return result;
+}
+
+// Get y-rotation matrix
+// NOTE: Angle must be provided in radians
+RMAPI Matrix MatrixRotateY(float angle)
+{
+ Matrix result = { 1.0f, 0.0f, 0.0f, 0.0f,
+ 0.0f, 1.0f, 0.0f, 0.0f,
+ 0.0f, 0.0f, 1.0f, 0.0f,
+ 0.0f, 0.0f, 0.0f, 1.0f }; // MatrixIdentity()
+
+ float cosres = cosf(angle);
+ float sinres = sinf(angle);
+
+ result.m0 = cosres;
+ result.m2 = -sinres;
+ result.m8 = sinres;
+ result.m10 = cosres;
+
+ return result;
+}
+
+// Get z-rotation matrix
+// NOTE: Angle must be provided in radians
+RMAPI Matrix MatrixRotateZ(float angle)
+{
+ Matrix result = { 1.0f, 0.0f, 0.0f, 0.0f,
+ 0.0f, 1.0f, 0.0f, 0.0f,
+ 0.0f, 0.0f, 1.0f, 0.0f,
+ 0.0f, 0.0f, 0.0f, 1.0f }; // MatrixIdentity()
+
+ float cosres = cosf(angle);
+ float sinres = sinf(angle);
+
+ result.m0 = cosres;
+ result.m1 = sinres;
+ result.m4 = -sinres;
+ result.m5 = cosres;
+
+ return result;
+}
+
+
+// Get xyz-rotation matrix
+// NOTE: Angle must be provided in radians
+RMAPI Matrix MatrixRotateXYZ(Vector3 angle)
+{
+ Matrix result = { 1.0f, 0.0f, 0.0f, 0.0f,
+ 0.0f, 1.0f, 0.0f, 0.0f,
+ 0.0f, 0.0f, 1.0f, 0.0f,
+ 0.0f, 0.0f, 0.0f, 1.0f }; // MatrixIdentity()
+
+ float cosz = cosf(-angle.z);
+ float sinz = sinf(-angle.z);
+ float cosy = cosf(-angle.y);
+ float siny = sinf(-angle.y);
+ float cosx = cosf(-angle.x);
+ float sinx = sinf(-angle.x);
+
+ result.m0 = cosz*cosy;
+ result.m1 = (cosz*siny*sinx) - (sinz*cosx);
+ result.m2 = (cosz*siny*cosx) + (sinz*sinx);
+
+ result.m4 = sinz*cosy;
+ result.m5 = (sinz*siny*sinx) + (cosz*cosx);
+ result.m6 = (sinz*siny*cosx) - (cosz*sinx);
+
+ result.m8 = -siny;
+ result.m9 = cosy*sinx;
+ result.m10= cosy*cosx;
+
+ return result;
+}
+
+// Get zyx-rotation matrix
+// NOTE: Angle must be provided in radians
+RMAPI Matrix MatrixRotateZYX(Vector3 angle)
+{
+ Matrix result = { 0 };
+
+ float cz = cosf(angle.z);
+ float sz = sinf(angle.z);
+ float cy = cosf(angle.y);
+ float sy = sinf(angle.y);
+ float cx = cosf(angle.x);
+ float sx = sinf(angle.x);
+
+ result.m0 = cz*cy;
+ result.m4 = cz*sy*sx - cx*sz;
+ result.m8 = sz*sx + cz*cx*sy;
+ result.m12 = 0;
+
+ result.m1 = cy*sz;
+ result.m5 = cz*cx + sz*sy*sx;
+ result.m9 = cx*sz*sy - cz*sx;
+ result.m13 = 0;
+
+ result.m2 = -sy;
+ result.m6 = cy*sx;
+ result.m10 = cy*cx;
+ result.m14 = 0;
+
+ result.m3 = 0;
+ result.m7 = 0;
+ result.m11 = 0;
+ result.m15 = 1;
+
+ return result;
+}
+
+// Get scaling matrix
+RMAPI Matrix MatrixScale(float x, float y, float z)
+{
+ Matrix result = { x, 0.0f, 0.0f, 0.0f,
+ 0.0f, y, 0.0f, 0.0f,
+ 0.0f, 0.0f, z, 0.0f,
+ 0.0f, 0.0f, 0.0f, 1.0f };
+
+ return result;
+}
+
+// Get perspective projection matrix
+RMAPI Matrix MatrixFrustum(double left, double right, double bottom, double top, double near, double far)
+{
+ Matrix result = { 0 };
+
+ float rl = (float)(right - left);
+ float tb = (float)(top - bottom);
+ float fn = (float)(far - near);
+
+ result.m0 = ((float)near*2.0f)/rl;
+ result.m1 = 0.0f;
+ result.m2 = 0.0f;
+ result.m3 = 0.0f;
+
+ result.m4 = 0.0f;
+ result.m5 = ((float)near*2.0f)/tb;
+ result.m6 = 0.0f;
+ result.m7 = 0.0f;
+
+ result.m8 = ((float)right + (float)left)/rl;
+ result.m9 = ((float)top + (float)bottom)/tb;
+ result.m10 = -((float)far + (float)near)/fn;
+ result.m11 = -1.0f;
+
+ result.m12 = 0.0f;
+ result.m13 = 0.0f;
+ result.m14 = -((float)far*(float)near*2.0f)/fn;
+ result.m15 = 0.0f;
+
+ return result;
+}
+
+// Get perspective projection matrix
+// NOTE: Fovy angle must be provided in radians
+RMAPI Matrix MatrixPerspective(double fovY, double aspect, double nearPlane, double farPlane)
+{
+ Matrix result = { 0 };
+
+ double top = nearPlane*tan(fovY*0.5);
+ double bottom = -top;
+ double right = top*aspect;
+ double left = -right;
+
+ // MatrixFrustum(-right, right, -top, top, near, far);
+ float rl = (float)(right - left);
+ float tb = (float)(top - bottom);
+ float fn = (float)(farPlane - nearPlane);
+
+ result.m0 = ((float)nearPlane*2.0f)/rl;
+ result.m5 = ((float)nearPlane*2.0f)/tb;
+ result.m8 = ((float)right + (float)left)/rl;
+ result.m9 = ((float)top + (float)bottom)/tb;
+ result.m10 = -((float)farPlane + (float)nearPlane)/fn;
+ result.m11 = -1.0f;
+ result.m14 = -((float)farPlane*(float)nearPlane*2.0f)/fn;
+
+ return result;
+}
+
+// Get orthographic projection matrix
+RMAPI Matrix MatrixOrtho(double left, double right, double bottom, double top, double nearPlane, double farPlane)
+{
+ Matrix result = { 0 };
+
+ float rl = (float)(right - left);
+ float tb = (float)(top - bottom);
+ float fn = (float)(farPlane - nearPlane);
+
+ result.m0 = 2.0f/rl;
+ result.m1 = 0.0f;
+ result.m2 = 0.0f;
+ result.m3 = 0.0f;
+ result.m4 = 0.0f;
+ result.m5 = 2.0f/tb;
+ result.m6 = 0.0f;
+ result.m7 = 0.0f;
+ result.m8 = 0.0f;
+ result.m9 = 0.0f;
+ result.m10 = -2.0f/fn;
+ result.m11 = 0.0f;
+ result.m12 = -((float)left + (float)right)/rl;
+ result.m13 = -((float)top + (float)bottom)/tb;
+ result.m14 = -((float)farPlane + (float)nearPlane)/fn;
+ result.m15 = 1.0f;
+
+ return result;
+}
+
+// Get camera look-at matrix (view matrix)
+RMAPI Matrix MatrixLookAt(Vector3 eye, Vector3 target, Vector3 up)
+{
+ Matrix result = { 0 };
+
+ float length = 0.0f;
+ float ilength = 0.0f;
+
+ // Vector3Subtract(eye, target)
+ Vector3 vz = { eye.x - target.x, eye.y - target.y, eye.z - target.z };
+
+ // Vector3Normalize(vz)
+ Vector3 v = vz;
+ length = sqrtf(v.x*v.x + v.y*v.y + v.z*v.z);
+ if (length == 0.0f) length = 1.0f;
+ ilength = 1.0f/length;
+ vz.x *= ilength;
+ vz.y *= ilength;
+ vz.z *= ilength;
+
+ // Vector3CrossProduct(up, vz)
+ Vector3 vx = { up.y*vz.z - up.z*vz.y, up.z*vz.x - up.x*vz.z, up.x*vz.y - up.y*vz.x };
+
+ // Vector3Normalize(x)
+ v = vx;
+ length = sqrtf(v.x*v.x + v.y*v.y + v.z*v.z);
+ if (length == 0.0f) length = 1.0f;
+ ilength = 1.0f/length;
+ vx.x *= ilength;
+ vx.y *= ilength;
+ vx.z *= ilength;
+
+ // Vector3CrossProduct(vz, vx)
+ Vector3 vy = { vz.y*vx.z - vz.z*vx.y, vz.z*vx.x - vz.x*vx.z, vz.x*vx.y - vz.y*vx.x };
+
+ result.m0 = vx.x;
+ result.m1 = vy.x;
+ result.m2 = vz.x;
+ result.m3 = 0.0f;
+ result.m4 = vx.y;
+ result.m5 = vy.y;
+ result.m6 = vz.y;
+ result.m7 = 0.0f;
+ result.m8 = vx.z;
+ result.m9 = vy.z;
+ result.m10 = vz.z;
+ result.m11 = 0.0f;
+ result.m12 = -(vx.x*eye.x + vx.y*eye.y + vx.z*eye.z); // Vector3DotProduct(vx, eye)
+ result.m13 = -(vy.x*eye.x + vy.y*eye.y + vy.z*eye.z); // Vector3DotProduct(vy, eye)
+ result.m14 = -(vz.x*eye.x + vz.y*eye.y + vz.z*eye.z); // Vector3DotProduct(vz, eye)
+ result.m15 = 1.0f;
+
+ return result;
+}
+
+// Get float array of matrix data
+RMAPI float16 MatrixToFloatV(Matrix mat)
+{
+ float16 result = { 0 };
+
+ result.v[0] = mat.m0;
+ result.v[1] = mat.m1;
+ result.v[2] = mat.m2;
+ result.v[3] = mat.m3;
+ result.v[4] = mat.m4;
+ result.v[5] = mat.m5;
+ result.v[6] = mat.m6;
+ result.v[7] = mat.m7;
+ result.v[8] = mat.m8;
+ result.v[9] = mat.m9;
+ result.v[10] = mat.m10;
+ result.v[11] = mat.m11;
+ result.v[12] = mat.m12;
+ result.v[13] = mat.m13;
+ result.v[14] = mat.m14;
+ result.v[15] = mat.m15;
+
+ return result;
+}
+
+//----------------------------------------------------------------------------------
+// Module Functions Definition - Quaternion math
+//----------------------------------------------------------------------------------
+
+// Add two quaternions
+RMAPI Quaternion QuaternionAdd(Quaternion q1, Quaternion q2)
+{
+ Quaternion result = {q1.x + q2.x, q1.y + q2.y, q1.z + q2.z, q1.w + q2.w};
+
+ return result;
+}
+
+// Add quaternion and float value
+RMAPI Quaternion QuaternionAddValue(Quaternion q, float add)
+{
+ Quaternion result = {q.x + add, q.y + add, q.z + add, q.w + add};
+
+ return result;
+}
+
+// Subtract two quaternions
+RMAPI Quaternion QuaternionSubtract(Quaternion q1, Quaternion q2)
+{
+ Quaternion result = {q1.x - q2.x, q1.y - q2.y, q1.z - q2.z, q1.w - q2.w};
+
+ return result;
+}
+
+// Subtract quaternion and float value
+RMAPI Quaternion QuaternionSubtractValue(Quaternion q, float sub)
+{
+ Quaternion result = {q.x - sub, q.y - sub, q.z - sub, q.w - sub};
+
+ return result;
+}
+
+// Get identity quaternion
+RMAPI Quaternion QuaternionIdentity(void)
+{
+ Quaternion result = { 0.0f, 0.0f, 0.0f, 1.0f };
+
+ return result;
+}
+
+// Computes the length of a quaternion
+RMAPI float QuaternionLength(Quaternion q)
+{
+ float result = sqrtf(q.x*q.x + q.y*q.y + q.z*q.z + q.w*q.w);
+
+ return result;
+}
+
+// Normalize provided quaternion
+RMAPI Quaternion QuaternionNormalize(Quaternion q)
+{
+ Quaternion result = { 0 };
+
+ float length = sqrtf(q.x*q.x + q.y*q.y + q.z*q.z + q.w*q.w);
+ if (length == 0.0f) length = 1.0f;
+ float ilength = 1.0f/length;
+
+ result.x = q.x*ilength;
+ result.y = q.y*ilength;
+ result.z = q.z*ilength;
+ result.w = q.w*ilength;
+
+ return result;
+}
+
+// Invert provided quaternion
+RMAPI Quaternion QuaternionInvert(Quaternion q)
+{
+ Quaternion result = q;
+
+ float lengthSq = q.x*q.x + q.y*q.y + q.z*q.z + q.w*q.w;
+
+ if (lengthSq != 0.0f)
+ {
+ float invLength = 1.0f/lengthSq;
+
+ result.x *= -invLength;
+ result.y *= -invLength;
+ result.z *= -invLength;
+ result.w *= invLength;
+ }
+
+ return result;
+}
+
+// Calculate two quaternion multiplication
+RMAPI Quaternion QuaternionMultiply(Quaternion q1, Quaternion q2)
+{
+ Quaternion result = { 0 };
+
+ float qax = q1.x, qay = q1.y, qaz = q1.z, qaw = q1.w;
+ float qbx = q2.x, qby = q2.y, qbz = q2.z, qbw = q2.w;
+
+ result.x = qax*qbw + qaw*qbx + qay*qbz - qaz*qby;
+ result.y = qay*qbw + qaw*qby + qaz*qbx - qax*qbz;
+ result.z = qaz*qbw + qaw*qbz + qax*qby - qay*qbx;
+ result.w = qaw*qbw - qax*qbx - qay*qby - qaz*qbz;
+
+ return result;
+}
+
+// Scale quaternion by float value
+RMAPI Quaternion QuaternionScale(Quaternion q, float mul)
+{
+ Quaternion result = { 0 };
+
+ result.x = q.x*mul;
+ result.y = q.y*mul;
+ result.z = q.z*mul;
+ result.w = q.w*mul;
+
+ return result;
+}
+
+// Divide two quaternions
+RMAPI Quaternion QuaternionDivide(Quaternion q1, Quaternion q2)
+{
+ Quaternion result = { q1.x/q2.x, q1.y/q2.y, q1.z/q2.z, q1.w/q2.w };
+
+ return result;
+}
+
+// Calculate linear interpolation between two quaternions
+RMAPI Quaternion QuaternionLerp(Quaternion q1, Quaternion q2, float amount)
+{
+ Quaternion result = { 0 };
+
+ result.x = q1.x + amount*(q2.x - q1.x);
+ result.y = q1.y + amount*(q2.y - q1.y);
+ result.z = q1.z + amount*(q2.z - q1.z);
+ result.w = q1.w + amount*(q2.w - q1.w);
+
+ return result;
+}
+
+// Calculate slerp-optimized interpolation between two quaternions
+RMAPI Quaternion QuaternionNlerp(Quaternion q1, Quaternion q2, float amount)
+{
+ Quaternion result = { 0 };
+
+ // QuaternionLerp(q1, q2, amount)
+ result.x = q1.x + amount*(q2.x - q1.x);
+ result.y = q1.y + amount*(q2.y - q1.y);
+ result.z = q1.z + amount*(q2.z - q1.z);
+ result.w = q1.w + amount*(q2.w - q1.w);
+
+ // QuaternionNormalize(q);
+ Quaternion q = result;
+ float length = sqrtf(q.x*q.x + q.y*q.y + q.z*q.z + q.w*q.w);
+ if (length == 0.0f) length = 1.0f;
+ float ilength = 1.0f/length;
+
+ result.x = q.x*ilength;
+ result.y = q.y*ilength;
+ result.z = q.z*ilength;
+ result.w = q.w*ilength;
+
+ return result;
+}
+
+// Calculates spherical linear interpolation between two quaternions
+RMAPI Quaternion QuaternionSlerp(Quaternion q1, Quaternion q2, float amount)
+{
+ Quaternion result = { 0 };
+
+#if !defined(EPSILON)
+ #define EPSILON 0.000001f
+#endif
+
+ float cosHalfTheta = q1.x*q2.x + q1.y*q2.y + q1.z*q2.z + q1.w*q2.w;
+
+ if (cosHalfTheta < 0)
+ {
+ q2.x = -q2.x; q2.y = -q2.y; q2.z = -q2.z; q2.w = -q2.w;
+ cosHalfTheta = -cosHalfTheta;
+ }
+
+ if (fabsf(cosHalfTheta) >= 1.0f) result = q1;
+ else if (cosHalfTheta > 0.95f) result = QuaternionNlerp(q1, q2, amount);
+ else
+ {
+ float halfTheta = acosf(cosHalfTheta);
+ float sinHalfTheta = sqrtf(1.0f - cosHalfTheta*cosHalfTheta);
+
+ if (fabsf(sinHalfTheta) < EPSILON)
+ {
+ result.x = (q1.x*0.5f + q2.x*0.5f);
+ result.y = (q1.y*0.5f + q2.y*0.5f);
+ result.z = (q1.z*0.5f + q2.z*0.5f);
+ result.w = (q1.w*0.5f + q2.w*0.5f);
+ }
+ else
+ {
+ float ratioA = sinf((1 - amount)*halfTheta)/sinHalfTheta;
+ float ratioB = sinf(amount*halfTheta)/sinHalfTheta;
+
+ result.x = (q1.x*ratioA + q2.x*ratioB);
+ result.y = (q1.y*ratioA + q2.y*ratioB);
+ result.z = (q1.z*ratioA + q2.z*ratioB);
+ result.w = (q1.w*ratioA + q2.w*ratioB);
+ }
+ }
+
+ return result;
+}
+
+// Calculate quaternion based on the rotation from one vector to another
+RMAPI Quaternion QuaternionFromVector3ToVector3(Vector3 from, Vector3 to)
+{
+ Quaternion result = { 0 };
+
+ float cos2Theta = (from.x*to.x + from.y*to.y + from.z*to.z); // Vector3DotProduct(from, to)
+ Vector3 cross = { from.y*to.z - from.z*to.y, from.z*to.x - from.x*to.z, from.x*to.y - from.y*to.x }; // Vector3CrossProduct(from, to)
+
+ result.x = cross.x;
+ result.y = cross.y;
+ result.z = cross.z;
+ result.w = 1.0f + cos2Theta;
+
+ // QuaternionNormalize(q);
+ // NOTE: Normalize to essentially nlerp the original and identity to 0.5
+ Quaternion q = result;
+ float length = sqrtf(q.x*q.x + q.y*q.y + q.z*q.z + q.w*q.w);
+ if (length == 0.0f) length = 1.0f;
+ float ilength = 1.0f/length;
+
+ result.x = q.x*ilength;
+ result.y = q.y*ilength;
+ result.z = q.z*ilength;
+ result.w = q.w*ilength;
+
+ return result;
+}
+
+// Get a quaternion for a given rotation matrix
+RMAPI Quaternion QuaternionFromMatrix(Matrix mat)
+{
+ Quaternion result = { 0 };
+
+ float fourWSquaredMinus1 = mat.m0 + mat.m5 + mat.m10;
+ float fourXSquaredMinus1 = mat.m0 - mat.m5 - mat.m10;
+ float fourYSquaredMinus1 = mat.m5 - mat.m0 - mat.m10;
+ float fourZSquaredMinus1 = mat.m10 - mat.m0 - mat.m5;
+
+ int biggestIndex = 0;
+ float fourBiggestSquaredMinus1 = fourWSquaredMinus1;
+ if (fourXSquaredMinus1 > fourBiggestSquaredMinus1)
+ {
+ fourBiggestSquaredMinus1 = fourXSquaredMinus1;
+ biggestIndex = 1;
+ }
+
+ if (fourYSquaredMinus1 > fourBiggestSquaredMinus1)
+ {
+ fourBiggestSquaredMinus1 = fourYSquaredMinus1;
+ biggestIndex = 2;
+ }
+
+ if (fourZSquaredMinus1 > fourBiggestSquaredMinus1)
+ {
+ fourBiggestSquaredMinus1 = fourZSquaredMinus1;
+ biggestIndex = 3;
+ }
+
+ float biggestVal = sqrtf(fourBiggestSquaredMinus1 + 1.0f)*0.5f;
+ float mult = 0.25f/biggestVal;
+
+ switch (biggestIndex)
+ {
+ case 0:
+ result.w = biggestVal;
+ result.x = (mat.m6 - mat.m9)*mult;
+ result.y = (mat.m8 - mat.m2)*mult;
+ result.z = (mat.m1 - mat.m4)*mult;
+ break;
+ case 1:
+ result.x = biggestVal;
+ result.w = (mat.m6 - mat.m9)*mult;
+ result.y = (mat.m1 + mat.m4)*mult;
+ result.z = (mat.m8 + mat.m2)*mult;
+ break;
+ case 2:
+ result.y = biggestVal;
+ result.w = (mat.m8 - mat.m2)*mult;
+ result.x = (mat.m1 + mat.m4)*mult;
+ result.z = (mat.m6 + mat.m9)*mult;
+ break;
+ case 3:
+ result.z = biggestVal;
+ result.w = (mat.m1 - mat.m4)*mult;
+ result.x = (mat.m8 + mat.m2)*mult;
+ result.y = (mat.m6 + mat.m9)*mult;
+ break;
+ }
+
+ return result;
+}
+
+// Get a matrix for a given quaternion
+RMAPI Matrix QuaternionToMatrix(Quaternion q)
+{
+ Matrix result = { 1.0f, 0.0f, 0.0f, 0.0f,
+ 0.0f, 1.0f, 0.0f, 0.0f,
+ 0.0f, 0.0f, 1.0f, 0.0f,
+ 0.0f, 0.0f, 0.0f, 1.0f }; // MatrixIdentity()
+
+ float a2 = q.x*q.x;
+ float b2 = q.y*q.y;
+ float c2 = q.z*q.z;
+ float ac = q.x*q.z;
+ float ab = q.x*q.y;
+ float bc = q.y*q.z;
+ float ad = q.w*q.x;
+ float bd = q.w*q.y;
+ float cd = q.w*q.z;
+
+ result.m0 = 1 - 2*(b2 + c2);
+ result.m1 = 2*(ab + cd);
+ result.m2 = 2*(ac - bd);
+
+ result.m4 = 2*(ab - cd);
+ result.m5 = 1 - 2*(a2 + c2);
+ result.m6 = 2*(bc + ad);
+
+ result.m8 = 2*(ac + bd);
+ result.m9 = 2*(bc - ad);
+ result.m10 = 1 - 2*(a2 + b2);
+
+ return result;
+}
+
+// Get rotation quaternion for an angle and axis
+// NOTE: Angle must be provided in radians
+RMAPI Quaternion QuaternionFromAxisAngle(Vector3 axis, float angle)
+{
+ Quaternion result = { 0.0f, 0.0f, 0.0f, 1.0f };
+
+ float axisLength = sqrtf(axis.x*axis.x + axis.y*axis.y + axis.z*axis.z);
+
+ if (axisLength != 0.0f)
+ {
+ angle *= 0.5f;
+
+ float length = 0.0f;
+ float ilength = 0.0f;
+
+ // Vector3Normalize(axis)
+ Vector3 v = axis;
+ length = sqrtf(v.x*v.x + v.y*v.y + v.z*v.z);
+ if (length == 0.0f) length = 1.0f;
+ ilength = 1.0f/length;
+ axis.x *= ilength;
+ axis.y *= ilength;
+ axis.z *= ilength;
+
+ float sinres = sinf(angle);
+ float cosres = cosf(angle);
+
+ result.x = axis.x*sinres;
+ result.y = axis.y*sinres;
+ result.z = axis.z*sinres;
+ result.w = cosres;
+
+ // QuaternionNormalize(q);
+ Quaternion q = result;
+ length = sqrtf(q.x*q.x + q.y*q.y + q.z*q.z + q.w*q.w);
+ if (length == 0.0f) length = 1.0f;
+ ilength = 1.0f/length;
+ result.x = q.x*ilength;
+ result.y = q.y*ilength;
+ result.z = q.z*ilength;
+ result.w = q.w*ilength;
+ }
+
+ return result;
+}
+
+// Get the rotation angle and axis for a given quaternion
+RMAPI void QuaternionToAxisAngle(Quaternion q, Vector3 *outAxis, float *outAngle)
+{
+ if (fabsf(q.w) > 1.0f)
+ {
+ // QuaternionNormalize(q);
+ float length = sqrtf(q.x*q.x + q.y*q.y + q.z*q.z + q.w*q.w);
+ if (length == 0.0f) length = 1.0f;
+ float ilength = 1.0f/length;
+
+ q.x = q.x*ilength;
+ q.y = q.y*ilength;
+ q.z = q.z*ilength;
+ q.w = q.w*ilength;
+ }
+
+ Vector3 resAxis = { 0.0f, 0.0f, 0.0f };
+ float resAngle = 2.0f*acosf(q.w);
+ float den = sqrtf(1.0f - q.w*q.w);
+
+ if (den > EPSILON)
+ {
+ resAxis.x = q.x/den;
+ resAxis.y = q.y/den;
+ resAxis.z = q.z/den;
+ }
+ else
+ {
+ // This occurs when the angle is zero.
+ // Not a problem: just set an arbitrary normalized axis.
+ resAxis.x = 1.0f;
+ }
+
+ *outAxis = resAxis;
+ *outAngle = resAngle;
+}
+
+// Get the quaternion equivalent to Euler angles
+// NOTE: Rotation order is ZYX
+RMAPI Quaternion QuaternionFromEuler(float pitch, float yaw, float roll)
+{
+ Quaternion result = { 0 };
+
+ float x0 = cosf(pitch*0.5f);
+ float x1 = sinf(pitch*0.5f);
+ float y0 = cosf(yaw*0.5f);
+ float y1 = sinf(yaw*0.5f);
+ float z0 = cosf(roll*0.5f);
+ float z1 = sinf(roll*0.5f);
+
+ result.x = x1*y0*z0 - x0*y1*z1;
+ result.y = x0*y1*z0 + x1*y0*z1;
+ result.z = x0*y0*z1 - x1*y1*z0;
+ result.w = x0*y0*z0 + x1*y1*z1;
+
+ return result;
+}
+
+// Get the Euler angles equivalent to quaternion (roll, pitch, yaw)
+// NOTE: Angles are returned in a Vector3 struct in radians
+RMAPI Vector3 QuaternionToEuler(Quaternion q)
+{
+ Vector3 result = { 0 };
+
+ // Roll (x-axis rotation)
+ float x0 = 2.0f*(q.w*q.x + q.y*q.z);
+ float x1 = 1.0f - 2.0f*(q.x*q.x + q.y*q.y);
+ result.x = atan2f(x0, x1);
+
+ // Pitch (y-axis rotation)
+ float y0 = 2.0f*(q.w*q.y - q.z*q.x);
+ y0 = y0 > 1.0f ? 1.0f : y0;
+ y0 = y0 < -1.0f ? -1.0f : y0;
+ result.y = asinf(y0);
+
+ // Yaw (z-axis rotation)
+ float z0 = 2.0f*(q.w*q.z + q.x*q.y);
+ float z1 = 1.0f - 2.0f*(q.y*q.y + q.z*q.z);
+ result.z = atan2f(z0, z1);
+
+ return result;
+}
+
+// Transform a quaternion given a transformation matrix
+RMAPI Quaternion QuaternionTransform(Quaternion q, Matrix mat)
+{
+ Quaternion result = { 0 };
+
+ result.x = mat.m0*q.x + mat.m4*q.y + mat.m8*q.z + mat.m12*q.w;
+ result.y = mat.m1*q.x + mat.m5*q.y + mat.m9*q.z + mat.m13*q.w;
+ result.z = mat.m2*q.x + mat.m6*q.y + mat.m10*q.z + mat.m14*q.w;
+ result.w = mat.m3*q.x + mat.m7*q.y + mat.m11*q.z + mat.m15*q.w;
+
+ return result;
+}
+
+// Check whether two given quaternions are almost equal
+RMAPI int QuaternionEquals(Quaternion p, Quaternion q)
+{
+#if !defined(EPSILON)
+ #define EPSILON 0.000001f
+#endif
+
+ int result = (((fabsf(p.x - q.x)) <= (EPSILON*fmaxf(1.0f, fmaxf(fabsf(p.x), fabsf(q.x))))) &&
+ ((fabsf(p.y - q.y)) <= (EPSILON*fmaxf(1.0f, fmaxf(fabsf(p.y), fabsf(q.y))))) &&
+ ((fabsf(p.z - q.z)) <= (EPSILON*fmaxf(1.0f, fmaxf(fabsf(p.z), fabsf(q.z))))) &&
+ ((fabsf(p.w - q.w)) <= (EPSILON*fmaxf(1.0f, fmaxf(fabsf(p.w), fabsf(q.w)))))) ||
+ (((fabsf(p.x + q.x)) <= (EPSILON*fmaxf(1.0f, fmaxf(fabsf(p.x), fabsf(q.x))))) &&
+ ((fabsf(p.y + q.y)) <= (EPSILON*fmaxf(1.0f, fmaxf(fabsf(p.y), fabsf(q.y))))) &&
+ ((fabsf(p.z + q.z)) <= (EPSILON*fmaxf(1.0f, fmaxf(fabsf(p.z), fabsf(q.z))))) &&
+ ((fabsf(p.w + q.w)) <= (EPSILON*fmaxf(1.0f, fmaxf(fabsf(p.w), fabsf(q.w))))));
+
+ return result;
+}
+
+#endif // RAYMATH_H
diff --git a/src/main.c b/src/main.c
@@ -0,0 +1,40 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <signal.h>
+#include <execinfo.h>
+#include <unistd.h>
+#include <time.h>
+
+#include "game.h"
+#include "const.h"
+#include "libs/raylib.h"
+
+void handle_segfault(int signal) {
+ void *list[10];
+ size_t size = backtrace(list, 10);
+ fprintf(stderr, "ERROR: signal %d:\n", signal);
+ backtrace_symbols_fd(list, size, STDERR_FILENO);
+ exit(1);
+}
+
+int main(void) {
+ printf("PID: %d\n", getpid());
+ time_t t;
+ srand((unsigned) time(&t));
+ struct sigaction sigint_action;
+ sigint_action.sa_handler = handle_segfault;
+ sigint_action.sa_flags = 0;
+ sigemptyset(&sigint_action.sa_mask);
+ sigaction(SIGSEGV, &sigint_action, NULL);
+ InitWindow(WINDOW_WIDTH, WINDOW_HEIGHT, "Freezo");
+ game_t *game = game_create();
+ SetTargetFPS(60);
+ SetExitKey(0);
+ while (!game->quit && !WindowShouldClose()) {
+ game_update(game);
+ game_draw(game);
+ }
+ CloseWindow();
+ game_free(game);
+ return 0;
+}
diff --git a/src/menu.c b/src/menu.c
@@ -0,0 +1,83 @@
+#include <stdlib.h>
+
+#include "libs/raylib.h"
+#include "menu.h"
+#include "util.h"
+#include "const.h"
+#include "game.h"
+#include "level.h"
+
+menu_t *menu_create(void) {
+ menu_t *menu = malloc(sizeof(menu_t));
+ menu->idx = 0;
+ return menu;
+}
+
+void menu_update(menu_t *menu, game_t *game) {
+ UNUSED(menu);
+ UNUSED(game);
+ if (IsKeyPressed(KEY_W)) {
+ if (menu->idx > 0) {
+ menu->idx--;
+ }
+ }
+ if (IsKeyPressed(KEY_S)) {
+ if (menu->idx < 2) {
+ menu->idx++;
+ }
+ }
+ if (IsKeyPressed(KEY_ENTER)) {
+ switch (menu->idx) {
+ case 0:
+ game->state = STATE_GAME;
+ break;
+ case 1: {
+ if (game->level != LEVEL_NULL) {
+ level_e level = game->level->type;
+ level_unload(game);
+ level_load(game, level);
+ game->victory = false;
+ game->defeat = false;
+ }
+ game->state = STATE_GAME;
+ break;
+ }
+ case 2:
+ game->quit = true;
+ break;
+ default:
+ break;
+ }
+ }
+}
+
+void menu_draw(menu_t *menu, game_t *game) {
+ UNUSED(menu);
+ UNUSED(game);
+ int shift = 20;
+ DrawRectangle(0, 0, WINDOW_WIDTH, WINDOW_HEIGHT, (Color) { 0, 0, 0, 125 });
+ DrawRectangle(WINDOW_WIDTH / 2.0 - 100, WINDOW_HEIGHT / 2.0 - 75 + shift - 10, 200, 150, (Color) { 50, 50, 50, 255 });
+ DrawTextureRec(
+ game->assets.images,
+ (rect_t) { 0, 0, 56 * SCALE, 28 * SCALE },
+ pos_snap((pos_t) { WINDOW_WIDTH / 2.0 - 3.5 * TILE_WIDTH, WINDOW_HEIGHT / 2.0 - 115 }),
+ WHITE
+ );
+ text_draw((pos_t) { WINDOW_WIDTH / 2.0, WINDOW_HEIGHT / 2.0 - FONT_HEIGHT / 2.0 - 30 + shift }, "RESUME", TEXT_ALIGNMENT_CENTER, game);
+ text_draw((pos_t) { WINDOW_WIDTH / 2.0, WINDOW_HEIGHT / 2.0 - FONT_HEIGHT / 2.0 + shift }, "RESTART", TEXT_ALIGNMENT_CENTER, game);
+ text_draw((pos_t) { WINDOW_WIDTH / 2.0, WINDOW_HEIGHT / 2.0 - FONT_HEIGHT / 2.0 + 30 + shift }, "QUIT", TEXT_ALIGNMENT_CENTER, game);
+ pos_t cursor_pos = (pos_t) {
+ .x = WINDOW_WIDTH / 2.0 - 70,
+ .y = WINDOW_HEIGHT / 2.0 - FONT_HEIGHT / 2.0 - 30 + menu->idx * 30 + shift,
+ };
+ DrawTextureRec(
+ game->assets.font,
+ texture_rect(0, 4, FONT_WIDTH, FONT_HEIGHT),
+ pos_snap(cursor_pos),
+ WHITE
+ );
+}
+
+void menu_free(menu_t *menu) {
+ free(menu);
+}
diff --git a/src/menu.h b/src/menu.h
@@ -0,0 +1,14 @@
+#pragma once
+
+typedef struct Menu menu_t;
+
+#include "game.h"
+
+struct Menu {
+ int idx;
+};
+
+menu_t *menu_create(void);
+void menu_update(menu_t *menu, game_t *game);
+void menu_draw(menu_t *menu, game_t *game);
+void menu_free(menu_t *menu);
diff --git a/src/player.c b/src/player.c
@@ -0,0 +1,404 @@
+#include <stdlib.h>
+#include <math.h>
+
+#include "player.h"
+#include "const.h"
+#include "tile.h"
+#include "util.h"
+#include "entity.h"
+#include "effect.h"
+
+player_t *player_create(pos_t pos) {
+ player_t *player = malloc(sizeof(player_t));
+ player->pos = pos;
+ player->health = 6;
+ player->on_ground = false;
+ player->velocity = 0.0;
+ player->gravity = 0.0;
+ player->dir = 1;
+ player->sneaking = false;
+ player->shooting = false;
+ player->damage_timer = 0;
+ player->fall_height = 0.0;
+ player->held_enemy = NULL;
+ player->moving = false;
+ player->timer_walking = timer_create(9, 4);
+ player->timer_sneaking = timer_create(9, 8);
+ player->target_entity = NULL;
+ player->shooting_distance = PLAYER_SHOOTING_RANGE;
+ return player;
+}
+
+void player_update(player_t *player, game_t *game) {
+ float move = 0.0;
+ bool go_down = false;
+ bool sneaking = false;
+ bool holding = false;
+ player->shooting = false;
+ player->moving = false;
+ tile_t *left_ground_tile = tile_get(game, player->pos.x + 0.2 * TILE_WIDTH, player->pos.y + PLAYER_HEIGHT + 1);
+ tile_t *right_ground_tile = tile_get(game, player->pos.x + PLAYER_WIDTH - 0.2 * TILE_WIDTH, player->pos.y + PLAYER_HEIGHT + 1);
+ // game over
+ if (player->health <= 0) {
+ game->defeat = true;
+ }
+ if (IsKeyDown(KEY_A) && !IsKeyDown(KEY_D)) {
+ move = -3.0;
+ player->dir = -1;
+ player->moving = true;
+ }
+ if (IsKeyDown(KEY_D) && !IsKeyDown(KEY_A)) {
+ move = 3.0;
+ player->dir = 1;
+ player->moving = true;
+ }
+ if (IsKeyDown(KEY_S)) {
+ sneaking = true;
+ }
+ if (IsKeyDown(KEY_S) && IsKeyDown(KEY_SPACE)) {
+ if (
+ (left_ground_tile == NULL || !tile_solid(left_ground_tile)) &&
+ (right_ground_tile == NULL || !tile_solid(right_ground_tile))
+ ) {
+ go_down = true;
+ }
+ }
+ if (IsKeyPressed(KEY_SPACE)) {
+ if (player->on_ground && !player->sneaking && !go_down) {
+ player->velocity = 13.0;
+ }
+ }
+ if (IsKeyDown(KEY_ENTER)) {
+ player->shooting = true;
+ }
+ if (IsKeyPressed(KEY_W)) {
+ holding = true;
+ }
+ // detect on ground
+ bool on_ground = false;
+ if (!(player->velocity > 0.0)) {
+ if (!go_down) {
+ for (int i = 0; i < game->tiles_len; i++) {
+ tile_t *tile = game->tiles[i];
+ if (tile_ground(tile)) {
+ if (
+ player->pos.x + PLAYER_WIDTH > tile->pos.x &&
+ player->pos.x < tile->pos.x + TILE_WIDTH
+ ) {
+ float tolerance = 4.0;
+ if (player->gravity > tolerance) {
+ tolerance = player->gravity;
+ }
+ if (fabs(player->pos.y + PLAYER_HEIGHT - tile->pos.y) < tolerance) {
+ player->pos.y = tile->pos.y - PLAYER_HEIGHT;
+ on_ground = true;
+ if (player->fall_height >= 1.5 * TILE_HEIGHT) {
+ effect_play(player->pos, EFFECT_FALL, game);
+ }
+ // fall damage
+ if (player->fall_height >= 6 * TILE_HEIGHT) {
+ if (player->damage_timer == 0) {
+ if (player->health > 0) {
+ player->health--;
+ player->damage_timer = 80;
+ player->velocity = 6.0;
+ if (player->held_enemy != NULL) {
+ player->held_enemy = NULL;
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ for (int i = 0; i < game->entities_len; i++) {
+ if (game->entities[i].type == ENTITY_ENEMY) {
+ enemy_t *enemy = game->entities[i].enemy;
+ if (enemy->frozen) {
+ if (
+ player->pos.x + PLAYER_WIDTH > enemy->pos.x &&
+ player->pos.x < enemy->pos.x + ENEMY_WIDTH
+ ) {
+ if (fabs(player->pos.y + PLAYER_HEIGHT - enemy->pos.y) < 4.0) {
+ player->pos.y = enemy->pos.y - PLAYER_HEIGHT;
+ on_ground = true;
+ if (player->sneaking && player->fall_height >= 2 * TILE_HEIGHT) {
+ effect_play(enemy->pos, EFFECT_BREAK, game);
+ effect_play(enemy->pos, EFFECT_PARTICLE, game);
+ enemy_kill(enemy, game);
+ i--;
+ player->velocity = 6.0;
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ // detect ceiling
+ if (player->velocity > 0.0) {
+ for (int i = 0; i < game->tiles_len; i++) {
+ tile_t *tile = game->tiles[i];
+ if (tile_solid(tile)) {
+ if (
+ player->pos.x + PLAYER_WIDTH - 0.2 * TILE_WIDTH > tile->pos.x &&
+ player->pos.x + 0.2 * TILE_WIDTH < tile->pos.x + TILE_WIDTH
+ ) {
+ float tolerance = 4.0;
+ if (player->velocity > tolerance) {
+ tolerance = player->velocity;
+ }
+ if (fabs(player->pos.y - (tile->pos.y + 0.2 * TILE_HEIGHT)) < tolerance) {
+ player->pos.y = tile->pos.y + 0.2 * TILE_HEIGHT;
+ player->velocity = 0.0;
+ }
+ }
+ }
+ }
+ }
+ // detect wall
+ if (fabs(move) > 0.0) {
+ for (int i = 0; i < game->tiles_len; i++) {
+ tile_t *tile = game->tiles[i];
+ if (tile_wall(tile)) {
+ if (
+ player->pos.y + PLAYER_HEIGHT > tile->pos.y &&
+ player->pos.y < tile->pos.y + TILE_HEIGHT
+ ) {
+ float tolerance = 4.0;
+ if (move > tolerance) {
+ tolerance = player->velocity;
+ }
+ if (player->dir > 0) {
+ if (fabs((player->pos.x + PLAYER_WIDTH - 0.2 * TILE_WIDTH) - tile->pos.x) < tolerance) {
+ player->pos.x = tile->pos.x - (PLAYER_WIDTH - 0.2 * TILE_WIDTH);
+ }
+ }
+ else {
+ if (fabs((player->pos.x + 0.2 * TILE_WIDTH) - (tile->pos.x + TILE_WIDTH)) < tolerance) {
+ player->pos.x = tile->pos.x + TILE_WIDTH - 0.2 * TILE_WIDTH;
+ }
+ }
+ }
+ }
+ }
+ }
+ player->on_ground = on_ground;
+ player->sneaking = sneaking;
+ // handle move
+ if (player->sneaking || player->shooting) {
+ player->pos.x += 0.5 * move;
+ }
+ else {
+ player->pos.x += move;
+ }
+ // handle map border
+ if (player->pos.x < 0.0) {
+ player->pos.x = 0.0;
+ }
+ if (player->pos.x + PLAYER_WIDTH > TILE_WIDTH * game->level->width) {
+ player->pos.x = TILE_WIDTH * game->level->width - PLAYER_WIDTH;
+ }
+ // handle jump
+ if (player->velocity > 0.0) {
+ player->pos.y -= player->velocity;
+ player->velocity -= 1.1;
+ }
+ if (player->on_ground) {
+ player->gravity = 0.0;
+ player->fall_height = 0.0;
+ }
+ else {
+ player->pos.y += player->gravity;
+ player->fall_height += player->gravity;
+ if (player->gravity < PLAYER_GRAVITY) {
+ player->gravity += 0.2;
+ }
+ else {
+ player->gravity = PLAYER_GRAVITY;
+ }
+ }
+ if (player->damage_timer > 0) {
+ player->damage_timer--;
+ }
+ // detect shooting
+ if (player->shooting) {
+ // determine target
+ float shooting_range = 2 * TILE_WIDTH;
+ rect_t shooting_rect = {
+ .x = player->dir > 0 ? player->pos.x + PLAYER_WIDTH : player->pos.x - shooting_range,
+ .y = player->sneaking ? player->pos.y + 8 * SCALE : player->pos.y + 7 * SCALE,
+ .width = shooting_range,
+ .height = SCALE,
+ };
+ float closest_distance = shooting_range;
+ entity_t *closest_entity = NULL;
+ bool target_in_range = false;
+ for (int i = 0; i < game->entities_len; i++) {
+ entity_t *entity = &game->entities[i];
+ // ignore held enemies
+ if (entity->type == ENTITY_ENEMY && player->held_enemy == entity->enemy) {
+ continue;
+ }
+ // ignore frozen gates
+ if (entity->type == ENTITY_GATE && entity->gate->frozen) {
+ continue;
+ }
+ rect_t entity_rect;
+ switch (entity->type) {
+ case ENTITY_ENEMY:
+ entity_rect = rect_from_pos(entity->enemy->pos, ENEMY_WIDTH, ENEMY_HEIGHT);
+ break;
+ case ENTITY_GATE:
+ entity_rect = rect_from_pos((pos_t) { entity->gate->pos.x, entity->gate->pos.y - TILE_HEIGHT }, ENEMY_WIDTH, ENEMY_HEIGHT);
+ break;
+ }
+ if (rect_collide(shooting_rect, entity_rect)) {
+ float entity_x = entity_rect.x + entity_rect.width / 2.0;
+ float entity_distance = fabs(entity_x - (player->dir > 0 ? player->pos.x + PLAYER_WIDTH : player->pos.x));
+ if (player->target_entity != NULL && player->target_entity == entity) {
+ target_in_range = true;
+ }
+ if (entity_distance < closest_distance) {
+ closest_distance = entity_distance;
+ closest_entity = entity;
+ }
+ }
+ }
+ if (closest_entity != NULL) {
+ player->shooting_distance = closest_distance;
+ if (!target_in_range) {
+ player->target_entity = closest_entity;
+ }
+ }
+ else {
+ player->target_entity = NULL;
+ player->shooting_distance = PLAYER_SHOOTING_RANGE;
+ }
+ }
+ else {
+ player->target_entity = NULL;
+ player->shooting_distance = PLAYER_SHOOTING_RANGE;
+ }
+ // detect holding
+ if (holding) {
+ bool picked_up = false;
+ for (int i = 0; i < game->entities_len; i++) {
+ if (game->entities[i].type == ENTITY_ENEMY) {
+ enemy_t *enemy = game->entities[i].enemy;
+ if (enemy->frozen) {
+ float tolerance = 0.0;
+ if (
+ player->pos.x <= enemy->pos.x + ENEMY_WIDTH - tolerance &&
+ player->pos.x + PLAYER_WIDTH >= enemy->pos.x + tolerance &&
+ player->pos.y <= enemy->pos.y + ENEMY_HEIGHT - tolerance &&
+ player->pos.y + PLAYER_HEIGHT >= enemy->pos.y + tolerance
+ ) {
+ if (player->held_enemy == NULL) {
+ player->held_enemy = enemy;
+ picked_up = true;
+ }
+ }
+ }
+ }
+ }
+ if (!picked_up && player->held_enemy != NULL) {
+ player->held_enemy = NULL;
+ }
+ }
+ if (player->held_enemy != NULL) {
+ player->held_enemy->pos = (pos_t) {
+ .x = player->pos.x,
+ .y = player->pos.y - (player->sneaking ? 0.3 : 0.5) * TILE_HEIGHT,
+ };
+ }
+ // detect damage
+ for (int i = 0; i < game->entities_len; i++) {
+ if (game->entities[i].type == ENTITY_ENEMY) {
+ enemy_t *enemy = game->entities[i].enemy;
+ if (!enemy->frozen) {
+ float tolerance = TILE_WIDTH / 5.0;
+ if (
+ player->pos.x <= enemy->pos.x + ENEMY_WIDTH - tolerance &&
+ player->pos.x + PLAYER_WIDTH >= enemy->pos.x + tolerance &&
+ player->pos.y <= enemy->pos.y + ENEMY_HEIGHT - tolerance &&
+ player->pos.y + PLAYER_HEIGHT >= enemy->pos.y + tolerance
+ ) {
+ if (player->damage_timer == 0) {
+ if (player->health > 0) {
+ player->health--;
+ player->damage_timer = 80;
+ player->velocity = 8.0;
+ if (player->pos.x + PLAYER_WIDTH / 2.0 > enemy->pos.x + ENEMY_WIDTH / 2.0) {
+ player->pos.x += 20.0;
+ }
+ else {
+ player->pos.x -= 20.0;
+ }
+ if (player->held_enemy != NULL) {
+ player->held_enemy = NULL;
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ // fall out of map
+ if (player->pos.y > TILE_HEIGHT * game->level->height) {
+ if (player->health > 0) {
+ player->health = 0;
+ }
+ }
+ // update timer
+ if (player->on_ground && player->moving) {
+ timer_update(player->timer_walking);
+ timer_update(player->timer_sneaking);
+ }
+ else {
+ timer_reset(player->timer_walking);
+ timer_reset(player->timer_sneaking);
+ }
+}
+
+void player_draw(player_t *player, game_t *game) {
+ pos_t pos = pos_snap(player->pos);
+ int frame = (player->sneaking || player->shooting)
+ ? timer_get(player->timer_sneaking)
+ : timer_get(player->timer_walking);
+ if (player->damage_timer / 4 % 2 == 0) {
+ if (player->sneaking) {
+ if (player->dir > 0) {
+ DrawTextureRec(game->assets.entities, texture_rect(frame, 6, PLAYER_WIDTH, PLAYER_HEIGHT), pos, WHITE);
+ }
+ else {
+ DrawTextureRec(game->assets.entities, texture_rect(frame, 7, PLAYER_WIDTH, PLAYER_HEIGHT), pos, WHITE);
+ }
+ }
+ else {
+ if (player->dir > 0) {
+ DrawTextureRec(game->assets.entities, texture_rect(frame, 4, PLAYER_WIDTH, PLAYER_HEIGHT), pos, WHITE);
+ }
+ else {
+ DrawTextureRec(game->assets.entities, texture_rect(frame, 5, PLAYER_WIDTH, PLAYER_HEIGHT), pos, WHITE);
+ }
+ }
+ if (player->shooting) {
+ float y = player->sneaking ? pos.y + 8 * SCALE : pos.y + 7 * SCALE;
+ if (player->dir > 0) {
+ DrawRectangle(pos.x + PLAYER_WIDTH, y, player->shooting_distance, 1 * SCALE, BLUE);
+ }
+ else {
+ DrawRectangle(pos.x - player->shooting_distance, y, player->shooting_distance, 1 * SCALE, BLUE);
+ }
+ }
+ }
+}
+
+void player_free(player_t *player) {
+ timer_free(player->timer_walking);
+ timer_free(player->timer_sneaking);
+ free(player);
+}
diff --git a/src/player.h b/src/player.h
@@ -0,0 +1,32 @@
+#pragma once
+
+typedef struct Player player_t;
+
+#include "util.h"
+#include "enemy.h"
+#include "game.h"
+#include "entity.h"
+
+struct Player {
+ pos_t pos;
+ int health;
+ bool on_ground;
+ float velocity;
+ float gravity;
+ int dir;
+ bool sneaking;
+ bool shooting;
+ int damage_timer;
+ float fall_height;
+ enemy_t *held_enemy;
+ bool moving;
+ timer_t *timer_walking;
+ timer_t *timer_sneaking;
+ entity_t *target_entity;
+ float shooting_distance;
+};
+
+player_t *player_create(pos_t pos);
+void player_update(player_t *player, game_t *game);
+void player_draw(player_t *player, game_t *game);
+void player_free(player_t *player);
diff --git a/src/tile.c b/src/tile.c
@@ -0,0 +1,110 @@
+#include <stdlib.h>
+
+#include "entity.h"
+#include "tile.h"
+#include "const.h"
+#include "util.h"
+
+/* ########################################################################## */
+/* # Tile # */
+/* ########################################################################## */
+
+tile_t *tile_create(pos_t pos, tile_e type) {
+ tile_t *tile = malloc(sizeof(tile_t));
+ tile->pos = pos;
+ tile->type = type;
+ return tile;
+}
+
+void tile_update(tile_t *tile, game_t *game) {
+ UNUSED(tile);
+ UNUSED(game);
+}
+
+void tile_draw(tile_t *tile, game_t *game) {
+ switch (tile->type) {
+ case TILE_AIR: {
+ break;
+ }
+ case TILE_STONE: {
+ DrawTextureRec(game->assets.tiles, texture_rect(0, 0, TILE_WIDTH, TILE_HEIGHT), tile->pos, WHITE);
+ break;
+ }
+ case TILE_STONE_JOINT: {
+ DrawTextureRec(game->assets.tiles, texture_rect(1, 0, TILE_WIDTH, TILE_HEIGHT), tile->pos, WHITE);
+ break;
+ }
+ case TILE_STONE_WALL: {
+ DrawTextureRec(game->assets.tiles, texture_rect(2, 0, TILE_WIDTH, TILE_HEIGHT), tile->pos, WHITE);
+ break;
+ }
+ case TILE_GRASS: {
+ DrawTextureRec(game->assets.tiles, texture_rect(3, 0, TILE_WIDTH, TILE_HEIGHT), tile->pos, WHITE);
+ break;
+ }
+ case TILE_WOOD_PLATFORM: {
+ DrawTextureRec(game->assets.tiles, texture_rect(4, 0, TILE_WIDTH, TILE_HEIGHT), tile->pos, WHITE);
+ break;
+ }
+ case TILE_SNOW: {
+ DrawTextureRec(game->assets.tiles, texture_rect(5, 0, TILE_WIDTH, TILE_HEIGHT), tile->pos, WHITE);
+ break;
+ }
+ case TILE_SAND: {
+ DrawTextureRec(game->assets.tiles, texture_rect(6, 0, TILE_WIDTH, TILE_HEIGHT), tile->pos, WHITE);
+ break;
+ }
+ }
+}
+
+tile_t *tile_get(game_t *game, int x, int y) {
+ for (int i = 0; i < game->tiles_len; i++) {
+ tile_t *tile = game->tiles[i];
+ if (x >= tile->pos.x && x <= tile->pos.x + TILE_WIDTH) {
+ if (y >= tile->pos.y && y <= tile->pos.y + TILE_HEIGHT) {
+ return tile;
+ }
+ }
+ }
+ return NULL;
+}
+
+bool tile_ground(tile_t *tile) {
+ switch (tile->type) {
+ case TILE_STONE:
+ case TILE_GRASS:
+ case TILE_WOOD_PLATFORM:
+ case TILE_STONE_JOINT:
+ case TILE_SNOW:
+ case TILE_SAND:
+ return true;
+ default:
+ return false;
+ }
+}
+
+bool tile_solid(tile_t *tile) {
+ switch (tile->type) {
+ case TILE_STONE:
+ case TILE_GRASS:
+ case TILE_STONE_JOINT:
+ case TILE_SNOW:
+ case TILE_SAND:
+ return true;
+ default:
+ return false;
+ }
+}
+
+bool tile_wall(tile_t *tile) {
+ switch (tile->type) {
+ case TILE_STONE_WALL:
+ return true;
+ default:
+ return false;
+ }
+}
+
+void tile_free(tile_t *tile) {
+ free(tile);
+}
diff --git a/src/tile.h b/src/tile.h
@@ -0,0 +1,31 @@
+#pragma once
+
+typedef struct Tile tile_t;
+
+#include "util.h"
+#include "game.h"
+
+typedef enum {
+ TILE_AIR,
+ TILE_WOOD_PLATFORM,
+ TILE_STONE_JOINT,
+ TILE_STONE_WALL,
+ TILE_GRASS,
+ TILE_STONE,
+ TILE_SNOW,
+ TILE_SAND,
+} tile_e;
+
+struct Tile {
+ pos_t pos;
+ tile_e type;
+};
+
+tile_t *tile_create(pos_t pos, tile_e type);
+void tile_update(tile_t *tile, game_t *game);
+void tile_draw(tile_t *tile, game_t *game);
+tile_t *tile_get(game_t *game, int x, int y);
+bool tile_ground(tile_t *tile);
+bool tile_solid(tile_t *tile);
+bool tile_wall(tile_t *tile);
+void tile_free(tile_t *tile);
diff --git a/src/util.c b/src/util.c
@@ -0,0 +1,124 @@
+#include <stdlib.h>
+#include <string.h>
+
+#include "util.h"
+#include "const.h"
+
+timer_t *timer_create(int frames, int step) {
+ timer_t *timer = malloc(sizeof(timer_t));
+ timer->frames = step * frames;
+ timer->count = 0;
+ timer->step = step;
+ return timer;
+}
+
+bool timer_check(timer_t *timer) {
+ return timer->count == 0;
+}
+
+void timer_update(timer_t *timer) {
+ if (timer->count >= timer->frames) {
+ timer->count = 0;
+ }
+ else {
+ timer->count++;
+ }
+}
+
+void timer_reset(timer_t *timer) {
+ timer->count = 0;
+}
+
+int timer_get(timer_t *timer) {
+ return timer->count / timer->step;
+}
+
+void timer_free(timer_t *timer) {
+ free(timer);
+}
+
+pos_t pos_snap(pos_t vec) {
+ return (pos_t) { (int) vec.x, (int) vec.y };
+}
+
+rect_t rect_from_pos(pos_t pos, int width, int height) {
+ return (rect_t) { pos.x, pos.y, width, height };
+}
+
+bool rect_collide(rect_t a, rect_t b) {
+ return !(
+ a.x > b.x + b.width ||
+ a.x + a.width < b.x ||
+ a.y + a.height < b.y ||
+ a.y > b.y + b.height
+ );
+}
+
+Texture2D texture_load(char *filename, int scale) {
+ Image image = LoadImage(filename);
+ ImageResizeNN(&image, scale * image.width, scale * image.height);
+ Texture2D texture = LoadTextureFromImage(image);
+ UnloadImage(image);
+ return texture;
+}
+
+Rectangle texture_rect(int x, int y, int width, int height) {
+ return (Rectangle) { x * width, y * height, width, height };
+}
+
+
+void text_draw(pos_t pos, char *text, text_alignment_e alignment, game_t *game) {
+ pos_t text_pos = pos;
+ int text_len = strlen(text);
+ float text_width = text_len * (FONT_WIDTH + FONT_WIDTH / 3.0);
+ switch (alignment) {
+ case TEXT_ALIGNMENT_LEFT:
+ break;
+ case TEXT_ALIGNMENT_RIGHT:
+ text_pos.x -= text_width;
+ break;
+ case TEXT_ALIGNMENT_CENTER: {
+ text_pos.x -= text_width / 2.0;
+ break;
+ }
+ }
+ for (int i = 0; i < text_len; i++) {
+ char c = text[i];
+ int x = 0;
+ int y = 0;
+ if (c >= 48 && c <= 58) {
+ x = text[i] - 48;
+ y = 0;
+ }
+ else if (c >= 65 && c <= 90) {
+ x = (text[i] - 65) % 10;
+ y = (text[i] - 65) / 10 + 1;
+ }
+ else if (c >= 97 && c <= 122) {
+ x = (text[i] - 97) % 10;
+ y = (text[i] - 97) / 10 + 1;
+ }
+ else if (c == ' ') {
+ x = 9;
+ y = 3;
+ }
+ else if (c == '+') {
+ x = 7;
+ y = 3;
+ }
+ else if (c == '-') {
+ x = 8;
+ y = 3;
+ }
+ else {
+ x = 6;
+ y = 3;
+ }
+ DrawTextureRec(
+ game->assets.font,
+ texture_rect(x, y, FONT_WIDTH, FONT_HEIGHT),
+ pos_snap((pos_t) { text_pos.x + i * (FONT_WIDTH + FONT_WIDTH / 3.0), text_pos.y }),
+ WHITE
+ );
+ }
+}
diff --git a/src/util.h b/src/util.h
@@ -0,0 +1,42 @@
+#pragma once
+
+#include <stdbool.h>
+
+#include "libs/raylib.h"
+
+#define UNUSED(x) (void)(x)
+
+typedef Vector2 pos_t;
+typedef Rectangle rect_t;
+typedef struct Timer timer_t;
+
+#include "game.h"
+
+struct Timer {
+ int frames;
+ int count;
+ int step;
+};
+
+timer_t *timer_create(int frames, int step);
+bool timer_check(timer_t *timer);
+void timer_update(timer_t *timer);
+void timer_reset(timer_t *timer);
+int timer_get(timer_t *timer);
+void timer_free(timer_t *timer);
+
+pos_t pos_snap(pos_t vec);
+
+rect_t rect_from_pos(pos_t pos, int width, int height);
+bool rect_collide(rect_t a, rect_t b);
+
+Texture texture_load(char *filename, int scale);
+Rectangle texture_rect(int x, int y, int width, int height);
+
+typedef enum {
+ TEXT_ALIGNMENT_LEFT,
+ TEXT_ALIGNMENT_RIGHT,
+ TEXT_ALIGNMENT_CENTER,
+} text_alignment_e;
+
+void text_draw(pos_t pos, char *text, text_alignment_e alignment, game_t *game);
diff --git a/todo.md b/todo.md
@@ -0,0 +1,17 @@
+Todos
+=====
+
+- [x] Improve freeze target detection
+- [x] Adjust win conditions (check if all gates are frozen)
+- [x] Add ceiling collision
+- [x] Victory/Defeat screen (delay)
+- [x] Add title screen
+- [ ] Create a file format for designing levels (also entity/tile state)
+- [ ] Add wall collision
+- [ ] Add move velocity (for damage and maybe icy surfaces)
+- [x] Stop enemy movement on walls
+- [ ] Stop freeze laser on walls
+- [ ] Add hitboxes (make them visible in debug mode)
+- [ ] Add countdown
+- [ ] Add new enemies
+- [ ] Add boss
