Fix framerate issue

src/game.cpp

@@ -20,16 +20,16 @@ Game::Game()
 
     main_window.create(sf::VideoMode(window_side * 3, window_side * 3), "SFML-Test Application", sf::Style::Default);
     main_window.setActive();
-
+    main_window.setFramerateLimit(60);
-    level->mapArray()[0][0]->setHeightShift(15);
-    level->mapArray()[0][1]->setHeightShift(10);
 
     current_level = 1;
-    //loadLevel(current_level);
 }
 
 int Game::run()
 {
+    // Initial level rendering
+    renderMap();
+
     // On the game loop
     while (main_window.isOpen())
     {
@@ -44,11 +44,11 @@ int Game::run()
             {
                 // Move
                 onMoving(event.key.code);
-            }
-        }
 
-        // Draw level
+                // Probably something changed! Re-render
                 renderMap();
+            }
+        }
 
         main_window.display();
     }
@@ -118,6 +118,11 @@ void Game::renderMap()
     float painter_x = 60, painter_y = 60;
     float horizontal_shift = 0, vertical_shift = 0;
 
+    sf::RectangleShape background_brush({static_cast<float>(main_window.getSize().x), static_cast<float>(main_window.getSize().y)});
+    background_brush.setFillColor(palette::Black);
+    background_brush.setPosition(0.f, 0.f);
+    main_window.draw(background_brush);
+
     // Brush for cell sprites
     sf::ConvexShape convex_brush;
     convex_brush.setPointCount(4);