Alpha 2.4 - Stompable enemies!

In this version, I corrected both Mario and the Rex's hitboxes for proper stomping and damage areas. Mario can now stomp and spin jump onto enemies to defeat them. I also managed to make it to where enemies will be non-active until Mario gets close enough to them off screen which was interesting to code but I managed to make a clever solution to it. Now this project is really starting to feel like a Super Mario World game or at least very close to it now!