diff --git a/a3/world.h b/a3/world.h
new file mode 100644
index 0000000..df2d4e9
--- /dev/null
+++ b/a3/world.h
@@ -0,0 +1,9 @@
+#ifndef WORLD_H_INCLUDED
+#define WORLD_H_INCLUDED
+
+#include "snake.h"
+
+void render(const struct state* state);
+void place_food(struct state* state);
+
+#endif