Added API functions for modulating the colour and alpha of a texture

src/GameEngine.c

@@ -326,6 +326,34 @@ void render_texture_asset(AssetID id, RenderRect *src, RenderRect *dest) {
   render_texture(GameEngine.window.renderer, texture, src, dest);
 }
 
+void modulate_texture_color(AssetID id, SDL_Color color) {
+  if (id < 0) {
+    return;
+  }
+
+  SDL_Texture *texture = get_texture(GameEngine.asset_manager, id);
+
+  if (!texture) {
+    return;
+  }
+
+  set_texture_color_modulation(texture, color);
+}
+
+void modulate_texture_alpha(AssetID id, u8 alpha) {
+  if (id < 0) {
+    return;
+  }
+
+  SDL_Texture *texture = get_texture(GameEngine.asset_manager, id);
+
+  if (!texture) {
+    return;
+  }
+
+  set_texture_alpha_modulation(texture, alpha);
+}
+
 TextSize get_text_size_from_font_asset(AssetID id, const char *text) {
   TextSize output = {};