Have commented a lot and dekludged a lot. I'm beginning to think that
vector movement is the way to go, even though it didn't work out well
last time. Sweepy is still not moving right. Playing music is currently
disabled because it eats up ALL	 the CPU, and sound clip playing needs
to be reworked so that the same clip can be played  by multiple entities
at once. Sound needs to be more responsive, need to implement
mousemovement again.