Fixed two bugs

Fixed two bugs already:

• Where the player can hop indefinitely on water if timing the spacebar right
• Where  if you jump off a wall while losing all stamina, the camera rotates to an incorrect way.

Thanks to Edit for finding the water hopping bug!

Next I'll attempt to solve going around curved walls, and being stuck when clinging onto the edge of faces.

This should go a long way towards a quality mechanic, and will allow me to start building features ontop of it.