sphere example
Merge branch 'master' of git://github.com/maxogden/voxel-engine
make sure the controls are enabled before running mouseup/mousedown code
items that obey gravity
just item.size
working block explosion demo
removeItem, items slowly disappear over time
Merge branch 'master' of git://github.com/maxogden/voxel-engine
collisionRadius and gather example
use 2 points for the collisionRadius calculation
merge substack
add counter to demo