Added function that returns the current time in milliseconds

src/GameEngine.c

@@ -172,6 +172,8 @@ void close_engine() {
 #endif /* DEBUG_ENGINE */
 }
 
+int64_t get_time() { return SDL_GetTicks64(); }
+
 ObjectID add_object(void *object, EventHandlerPtr event_handler,
                     UpdateFuncPtr update_func, RenderFuncPtr render_func) {
   if (!(GameEngine.running) || !(GameEngine.object_store)) {