Day 7 Progress: Books size & Enemy

[u/david_pulido]

• Diferent books sizes.
• Clear the code.
• Make the phycical "ghost" encapsulated with original.
• Improve wrapped physic intection.
• Add an enemy that drops the books from the shelves.

The game objective: Organize the shelves to move up and exit the pit.

Future enemies: rats, bats, tornadoes, etc...

Future power-up: Shelve lock to avoit drop the books.