Move renderer clear call from MapView to system loop

src/control/RPGEdit.cpp

@@ -71,6 +71,8 @@ void RPGEdit::systemLoop() {
 
 		lastFrameTicks = SDL_GetTicks();
 
+		SDL_RenderClear(window->getRenderer());
+
 		{
 			std::unique_lock<std::mutex> lock(modelMutex);
 

src/view/MapView.cpp

@@ -95,8 +95,6 @@ void MapView::clearEntities() {
 }
 
 void MapView::render(const Model::Map *map, Model::Position<float> center, uint64_t time) {
-	SDL_RenderClear(window->getRenderer());
-
 	std::pair<int, int> viewport = window->getViewport();
 
 	float pixels = std::max(viewport.first/20.0f, viewport.second/15.0f);