Each player (and any new players who may end up joining
the game later) receives the following default values:
Level: 1
Experience: 0
Hit Points: 100
If at any time a player has an experience value greater than or equal to 10 times his level, then his experience will be decreased by 10 times his level, and his level will increase by 1. (Example: A level 4 player has 47 experience points. His level becomes 5 and his experience becomes 7.)
If at any time a player has 0 or less hit points, his hit points will be set to 100 and his level will be decreased by 2.