Az movement

This is a text-based game. User can view a colored ascii map in their browser and a group of buttons. User can click buttons to determine direction they want their character to move. Characters can circumnavigate world. 
There's a lot of logic to test boundary conditions ("is this at 39?") in move_east/west/north etc. How about using modulo instead?

Also, 39/-39 and 11/-11 are magic numbers. Can you use constants, or get the values from the Map?