very bad collision(work in progress)

src/physics.h

@@ -0,0 +1,9 @@
+#ifndef PHYSICS_H
+#define PHYSICS_H
+
+// FUNction declaration! yay!!!
+// used by main script to update entities as time goes on
+// i don't think it's used anywhere else, but double check me
+void UpdateEntities(float dt, int screenWidth);
+
+#endif