Removed some agame things; Added VSYNC

src/renderer/renderer.cpp

@@ -21,12 +21,20 @@ namespace Game::Renderer {
     }
 
     bool Renderer::init(SDL_Window* window) {
+        // Request VSync before/at renderer setup; some backends honor this hint.
+        SDL_SetHint(SDL_HINT_RENDER_VSYNC, "1");
+
         mRenderer = SDL_CreateRenderer(window, nullptr);
         if (!mRenderer) {
             std::string errorMsg = "Failed to create renderer: " + std::string(SDL_GetError());
             ERROR(errorMsg.c_str());
             return false;
         }
+
+        mVSyncEnabled = SDL_SetRenderVSync(mRenderer, 1);
+        if (!mVSyncEnabled) {
+            WARN("VSync could not be enabled, using software frame pacing fallback: " << SDL_GetError());
+        }
         
         if (!SDL_SetRenderDrawColor(mRenderer, 0, 0, 255, 255)) {
             ERROR("Failed to set renderer draw color: " << SDL_GetError());