Fallback Staff (v0.8a)

Now when your staff runs out of energy, you swap to a fallback staff that has infinite energy.

Also, whenever a staff, you have, loses all its energy or if you pick up a new staff, your previously equipped staff will now go on your back and stay there. In the future, I plan on having the energy from your current staff transfer to your new staff; even if it must go over the max for that staff.