use Image.load
added moveDone_ helper, removed envmap_, cleaned up Env
typesafety for zindex
comment update
simplify Object.subclass, and pxgame.Env/LargeEnv
some namespacing?
whoops
simplified noise method
use bit array for plot
plot addition to maps (naive)
migrate to Size object
fix for blocked searches
water fatter
plot to use Board
board combine
use pageX/Y, not x/y for mouse; works even during scroll
plot updates
attempt at an .annot class
play/pause