A set of useful trigonometry macros defined in \trig.h.
PI - The constant Pi as a float.
TWOPI - Two times PI as a float.
HALFPI - One half of PI as a float.
DEG_TO_RAD - Float degrees to radians conversion factor.
RAD_TO_DEG - Float radians to degrees conversion factor.
DegToRad() - Float degrees to radians conversion.
RadToDeg() - Float radians to degrees conversion.