state pattern for the level object
changed the state pattern up
removed the sprite batch reuse for the map renderer since it seems to cause some rendering slowdowns.
state pattern for the GameScreen
Cleaned up the GameScreen some and made better use of the states.
moved hud, dpad, and start countdown to their own widget classes.
Merge branch 'master' into kevin
State pattern for ball controller and teleporter
map tweak. make sure you get crushed if trapped in the tunnel.