VECTOR* distance,VECTOR* speed,VECTOR* accel,var friction): VECTOR*
Like accelerate, but calculates three values for using distance
and speed vectors rather than amounts.
||a vector that is set to the distance to cover in quants, A7.85 or NULL for returning a temporary distance vector.
||current speed vector in quants per tick. This value is changed by the acceleration
||acceleration vector in quants per square tick
||the resistance parameter of the surrounding medium. 0 means no resistance
||vector is set to the distance to cover in quants
||current speed vector in quants per tick
This function is faster than applying accelerate separately on the
three elements of a vector.