dragon does circle around terrain

Adapted the code for those removals
Made code prettier and comments clearer
Rehauled bat/dragon death timer system (not fps dependant now)

Q to open it up
Right click to change projectile

More efficient projectile deletion

Dragons bugfix

- Refined simulation for hitbox detection
- Fixed indices mistakes causing problems with multiple animals, and wrong hitboxes being used

You can't walk out of the mountains!

Mountain border!

New rock and grass texture
Fixed grid-pattern issue + better fps