Add global keybind for configuration later

Changelog:
- There is a action to key map in the engine. Each scene can use this
  keybind to figure out its own action map.
- This is to build up configurable key binds later

engine/engine.c

@@ -6,6 +6,7 @@
 void init_engine(GameEngine_t* engine, Vector2 starting_win_size)
 {
     InitAudioDevice();
+    sc_map_init_64(&engine->keybinds, 16, 0);
     sc_queue_init(&engine->key_buffer);
     sc_queue_init(&engine->scene_stack);
     sc_heap_init(&engine->scenes_render_order, 0);
@@ -25,11 +26,27 @@ void deinit_engine(GameEngine_t* engine)
     sc_queue_term(&engine->key_buffer);
     sc_queue_term(&engine->scene_stack);
     sc_heap_term(&engine->scenes_render_order);
+    sc_map_term_64(&engine->keybinds);
     UnloadRenderTexture(engine->base_canvas);
     CloseAudioDevice();
     CloseWindow(); 
 }
 
+void register_keybind(GameEngine_t* engine, int key, ActionType_t action)
+{
+    sc_map_put_64(&engine->keybinds, action, key);
+}
+
+int get_keybind_or_default(GameEngine_t* engine, ActionType_t action, int default_key)
+{
+    int key = sc_map_get_64(&engine->keybinds, action);
+    if (!sc_map_found(&engine->keybinds))
+    {
+        key = default_key;
+    };
+    return key;
+}
+
 void process_inputs(GameEngine_t* engine, Scene_t* scene)
 {
     Vector2 raw_mouse_pos = GetMousePosition();

engine/engine.h

@@ -31,6 +31,7 @@ typedef struct GameEngine {
     SFXList_t sfx_list;
     // Maintain own queue to handle key presses
     Scene_t* focused_scene; // The one scene to receive key inputs
+    struct sc_map_64 keybinds; // Global action -> key mapping
     struct sc_queue_32 key_buffer;
     struct sc_queue_ptr scene_stack;
     struct sc_heap scenes_render_order;
@@ -85,6 +86,11 @@ void init_engine(GameEngine_t* engine, Vector2 starting_win_size);
 void deinit_engine(GameEngine_t* engine);
 void process_inputs(GameEngine_t* engine, Scene_t* scene);
 
+// Register a key bind. If already exists, will override.
+// Does not support multi key to an action
+void register_keybind(GameEngine_t* engine, int key, ActionType_t action);
+int get_keybind_or_default(GameEngine_t* engine, ActionType_t action, int default_key);
+
 void process_active_scene_inputs(GameEngine_t* engine);
 void update_curr_scene(GameEngine_t* engine);
 void render_curr_scene(GameEngine_t* engine);

level_test.c

@@ -57,6 +57,10 @@ int main(int argc, char** argv)
     LevelScene_t level_scene;
     level_scene.scene.engine = &engine;
     init_game_scene(&level_scene);
+
+    sc_map_put_64(&level_scene.scene.action_map, KEY_RIGHT_BRACKET, ACTION_NEXTLEVEL);
+    sc_map_put_64(&level_scene.scene.action_map, KEY_LEFT_BRACKET, ACTION_PREVLEVEL);
+
     level_scene.data.tile_sprites[ONEWAY_TILE] = get_sprite(&engine.assets, "tl_owp");
     level_scene.data.tile_sprites[LADDER] = get_sprite(&engine.assets, "tl_ldr");
     level_scene.data.tile_sprites[SPIKES] = get_sprite(&engine.assets, "d_spikes");

main.c

@@ -37,6 +37,13 @@ int main(void)
     init_player_creation_rres("res/assets.rres", "player_spr.info", &engine.assets);
 #endif
     init_item_creation(&engine.assets);
+    register_keybind(&engine, KEY_UP, ACTION_UP);
+    register_keybind(&engine, KEY_DOWN, ACTION_DOWN);
+    register_keybind(&engine, KEY_LEFT, ACTION_LEFT);
+    register_keybind(&engine, KEY_RIGHT, ACTION_RIGHT);
+    register_keybind(&engine, KEY_SPACE, ACTION_JUMP);
+    register_keybind(&engine, KEY_Q, ACTION_EXIT);
+    register_keybind(&engine, KEY_Z, ACTION_LOOKAHEAD);
 
     load_sfx(&engine, "snd_jump", PLAYER_JMP_SFX);
     load_sfx(&engine, "snd_land", PLAYER_LAND_SFX);

scenes/game_scene.c

@@ -600,17 +600,15 @@ void init_game_scene(LevelScene_t* scene)
     // This avoid graphical glitch, not essential
     //sc_array_add(&scene->scene.systems, &update_tilemap_system);
 
-    sc_map_put_64(&scene->scene.action_map, KEY_UP, ACTION_UP);
+    sc_map_put_64(&scene->scene.action_map, get_keybind_or_default(scene->scene.engine, ACTION_UP, KEY_UP), ACTION_UP);
-    sc_map_put_64(&scene->scene.action_map, KEY_DOWN, ACTION_DOWN);
+    sc_map_put_64(&scene->scene.action_map, get_keybind_or_default(scene->scene.engine, ACTION_DOWN, KEY_DOWN), ACTION_DOWN);
-    sc_map_put_64(&scene->scene.action_map, KEY_LEFT, ACTION_LEFT);
+    sc_map_put_64(&scene->scene.action_map, get_keybind_or_default(scene->scene.engine, ACTION_LEFT, KEY_LEFT), ACTION_LEFT);
-    sc_map_put_64(&scene->scene.action_map, KEY_RIGHT, ACTION_RIGHT);
+    sc_map_put_64(&scene->scene.action_map, get_keybind_or_default(scene->scene.engine, ACTION_RIGHT, KEY_RIGHT), ACTION_RIGHT);
-    sc_map_put_64(&scene->scene.action_map, KEY_SPACE, ACTION_JUMP);
+    sc_map_put_64(&scene->scene.action_map, get_keybind_or_default(scene->scene.engine, ACTION_JUMP, KEY_ENTER), ACTION_JUMP);
-    sc_map_put_64(&scene->scene.action_map, KEY_Q, ACTION_EXIT);
+    sc_map_put_64(&scene->scene.action_map, get_keybind_or_default(scene->scene.engine, ACTION_EXIT, KEY_Q), ACTION_EXIT);
-    sc_map_put_64(&scene->scene.action_map, KEY_R, ACTION_RESTART);
+    sc_map_put_64(&scene->scene.action_map, get_keybind_or_default(scene->scene.engine, ACTION_LOOKAHEAD, KEY_Z), ACTION_LOOKAHEAD);
-    sc_map_put_64(&scene->scene.action_map, KEY_RIGHT_BRACKET, ACTION_NEXTLEVEL);
-    sc_map_put_64(&scene->scene.action_map, KEY_LEFT_BRACKET, ACTION_PREVLEVEL);
-    sc_map_put_64(&scene->scene.action_map, KEY_Z, ACTION_LOOKAHEAD);
 
+    sc_map_put_64(&scene->scene.action_map, KEY_R, ACTION_RESTART);
 }
 
 void free_game_scene(LevelScene_t* scene)

scenes/level_select_scene.c

@@ -297,11 +297,14 @@ void init_level_select_scene(LevelSelectScene_t* scene)
 
     sc_array_add(&scene->scene.systems, &level_preview_render_func);
     sc_array_add(&scene->scene.systems, &level_select_render_func);
-    sc_map_put_64(&scene->scene.action_map, KEY_UP, ACTION_UP);
+
-    sc_map_put_64(&scene->scene.action_map, KEY_DOWN, ACTION_DOWN);
+    sc_map_put_64(&scene->scene.action_map, get_keybind_or_default(scene->scene.engine, ACTION_UP, KEY_UP), ACTION_UP);
-    sc_map_put_64(&scene->scene.action_map, KEY_Q, ACTION_EXIT);
+    sc_map_put_64(&scene->scene.action_map, get_keybind_or_default(scene->scene.engine, ACTION_DOWN, KEY_DOWN), ACTION_DOWN);
+    sc_map_put_64(&scene->scene.action_map, get_keybind_or_default(scene->scene.engine, ACTION_JUMP, KEY_ENTER), ACTION_CONFIRM);
+    sc_map_put_64(&scene->scene.action_map, get_keybind_or_default(scene->scene.engine, ACTION_EXIT, KEY_Q), ACTION_EXIT);
+
+    sc_map_put_64(&scene->scene.action_map, KEY_BACKSPACE, ACTION_EXIT);
     sc_map_put_64(&scene->scene.action_map, KEY_ENTER, ACTION_CONFIRM);
-    sc_map_put_64(&scene->scene.action_map, MOUSE_LEFT_BUTTON, ACTION_NEXT_SPAWN); // Abuse an unused action
 }
 void free_level_select_scene(LevelSelectScene_t* scene)
 {

scenes/menu_scene.c

@@ -202,10 +202,13 @@ void init_menu_scene(MenuScene_t* scene)
         }
     );
 
-    sc_map_put_64(&scene->scene.action_map, KEY_UP, ACTION_UP);
+    
-    sc_map_put_64(&scene->scene.action_map, KEY_DOWN, ACTION_DOWN);
+    sc_map_put_64(&scene->scene.action_map, get_keybind_or_default(scene->scene.engine, ACTION_UP, KEY_UP), ACTION_UP);
-    sc_map_put_64(&scene->scene.action_map, KEY_LEFT, ACTION_LEFT);
+    sc_map_put_64(&scene->scene.action_map, get_keybind_or_default(scene->scene.engine, ACTION_DOWN, KEY_DOWN), ACTION_DOWN);
-    sc_map_put_64(&scene->scene.action_map, KEY_RIGHT, ACTION_RIGHT);
+    sc_map_put_64(&scene->scene.action_map, get_keybind_or_default(scene->scene.engine, ACTION_LEFT, KEY_LEFT), ACTION_LEFT);
+    sc_map_put_64(&scene->scene.action_map, get_keybind_or_default(scene->scene.engine, ACTION_RIGHT, KEY_RIGHT), ACTION_RIGHT);
+    sc_map_put_64(&scene->scene.action_map, get_keybind_or_default(scene->scene.engine, ACTION_JUMP, KEY_ENTER), ACTION_CONFIRM);
+    // Guarantee a enter key for selection
     sc_map_put_64(&scene->scene.action_map, KEY_ENTER, ACTION_CONFIRM);
 }