WalkerCompareDir

Compares direction vectors of two walkers

Syntax: WalkerCompareDir(wa,wb)

• wa walker a to compare with walker b

• wb walker b to compare with walker a

Returns: Returned number reflects the relation between two direction vectors

• 0 Direction vectors are perpendicular

• 1 Directions are same

• -1 Directions are opposite

Example: WalkerCompareDir(wlka,wlkb)