[Tutor] move forward in arbitrary direction

Luke Paireepinart rabidpoobear at gmail.com
Sun Oct 29 00:57:24 CEST 2006

> Going by radians, 0.0*pi is pointing to the right, 0.5*pi is pointing
> down, 1.0*pi is pointing to the left, and 1.5*pi is pointing straight up.

uh, wouldn't pi/2 be pointing up?
Don't you set 0 radians to be the positive-x axis and then go
Or does it not matter?
It seems like it would.
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