diff --git a/a4/game.h b/a4/game.h
new file mode 100644
index 0000000..1aad23d
--- /dev/null
+++ b/a4/game.h
@@ -0,0 +1,19 @@
+#ifndef _GAME_H_INCLUDE_
+#define _GAME_H_INCLUDE_
+#include "world.h"
+
+#define MOUSE_COUNT 5
+
+struct game {
+    int catx;
+    int caty;
+    int mousex[MOUSE_COUNT];
+    int mousey[MOUSE_COUNT];
+    int mouse_state[MOUSE_COUNT]; // 0 = alive, 1 = eaten
+    char message[100];
+};
+
+void* init_game();
+int game_event(struct event* event, void* game);
+
+#endif
\ No newline at end of file