Returns one of three values representing the sign of a number. Returns -1 if the number is negative, 1 if positive, 0 if 0.
float sign( float number )
number is the number whose sign you want to determine.
Examples
sign(-9.63)
Returns -1.
sign(0)
Returns 0.
sign(10)
Returns 1.
sign(Ball.translateX)
If Ball.translateX is 5, this returns 1.
