modified:   src/com/example/buildloft/PhysicsExample2.java
	new file:   src/com/example/buildloft/adt/Direction.java
	modified:   src/com/example/buildloft/sprite/AbstractGameSprite.java
	modified:   src/com/example/buildloft/sprite/Crane.java
	new file:   src/com/example/buildloft/sprite/SprintGenerator.java
	modified:   src/com/example/buildloft/sprite/impl/Board.java