Consume input events when switching between renderers

src/demo/menu.cc

@@ -201,6 +201,7 @@ bool Menu::Initialize() {
                                          : RendererType::kOpenGL);
         renderer_type_.SetEnabled(
             (Engine::Get().GetRendererType() == RendererType::kVulkan));
+        Engine::Get().ConsumeInputEvents();
       },
       true, Engine::Get().GetRendererType() == RendererType::kVulkan,
       kColorFadeOut, {Vector4f{1, 1, 1, 1}, Vector4f{1, 1, 1, 1}});

src/engine/engine.cc

@@ -396,6 +396,10 @@ std::unique_ptr<InputEvent> Engine::GetNextInputEvent() {
   return event;
 }
 
+void Engine::ConsumeInputEvents() {
+  input_queue_.clear();
+}
+
 void Engine::StartRecording(const Json::Value& payload) {
   if (!replaying_ && !recording_) {
     recording_ = true;

src/engine/engine.h

@@ -84,6 +84,7 @@ class Engine : public PlatformObserver {
   void RemoveCustomShader(const std::string& asset_name);
 
   std::unique_ptr<InputEvent> GetNextInputEvent();
+  void ConsumeInputEvents();
 
   void StartRecording(const Json::Value& payload);
   void EndRecording(const std::string file_name);