Add missing dependency: levelroom -> hud
Add as_bool to Point

Returns the "truthiness" of the instance. A Point is "truthy" if its
length is non-zero
Add Point.ZERO - represents the origin
Add Point.set - sets this to other
Tear out old brainship logic
render Guy triangle to point in facing direction
Merge branch 'topic/ghi/1' into dev

Fixes Github issue #1
Merge branch 'dev'