Player now in proper locations

Relative to the player:
X is sideline-to-sideline
Y is endzone-to-endzone

And if a player's X is zero, that is exactly in between the sidelines.
Depending on the move function I'm not sure this will work too well with
what we have, but I don't think it should affect the move method since
it's using numerical comparisons (after all -2 should still be greater
than -5, right?)

100 units from endzone to endzone, and i thought about doing 50 for
sideline to sideline, but realize it's too spaced out, so I kept it at
100 both ways.

Basically we have a 100x100 grid to work with now.