Add physics and level module

src/definitions.hpp

@@ -0,0 +1,17 @@
+#pragma once
+
+#include <SDL3/SDL.h>
+
+static constexpr int WINDOW_WIDTH = 400;
+static constexpr int WINDOW_HEIGHT = 240;
+
+struct SdlHandles
+{
+    SDL_Window* window;
+    SDL_Renderer* renderer;
+};
+
+struct Game
+{
+    uint32_t ticks;
+};