Expose bitmap font rendering in the GameEngine API

include/GameEngine.h

@@ -2,6 +2,7 @@
 #define GAME_H
 
 #include "AssetManager.h"
+#include "BitmapFont.h"
 #include "ObjectStore.h"
 #include "Renderer.h"
 #include "SDL_pixels.h"
@@ -42,6 +43,9 @@ void remove_object(ObjectID *id);
 // ASSET MANAGEMENT API
 AssetID load_asset(const char *path, AssetType type);
 void unload_asset(AssetID *id);
+BitmapFont *load_bitmap_font(const char *filepath, u64 tile_width,
+                             u64 tile_height);
+void unload_bitmap_font(BitmapFont **font);
 // END ASSET MANAGEMENT API
 
 // RENDERING API
@@ -80,12 +84,15 @@ void render_texture_asset(AssetID id, const RenderRect *src,
 void modulate_texture_color(AssetID id, SDL_Color color);
 void modulate_texture_alpha(AssetID id, u8 alpha);
 TextSize get_text_size_from_font_asset(AssetID id, const char *text);
-void render_text_with_font_asset(AssetID id, const char *text,
-                                 const RenderRect *src, RenderRect dest,
-                                 SDL_Color color);
 void set_font_asset_size(AssetID id, u32 size);
 i32 set_font_direction(AssetID id, FontDirection direction);
 i32 set_font_script_name(AssetID id, const char *script);
+void render_text_with_font_asset(AssetID id, const char *text,
+                                 const RenderRect *src, RenderRect dest,
+                                 SDL_Color color);
+void render_text_with_bitmap_font(BitmapFont *font, const char *text,
+                                  u64 font_size, u64 start_index,
+                                  RenderRect dest, SDL_Color color);
 // END RENDERING API
 
 // AUDIO API