kts.GetPos – get the position of a creature
result = kts.FunctionName(creature)
Given a Creature, this function returns the creature's current position, or nil if the creature is no longer in the map (e.g. it has been killed).
If the creature is nil, then nil is returned.
Either nil, or a table containing an x and a y co-ordinate.
If the input is neither nil nor a valid Creature userdata object, an error is generated.