Mathematical Distance Problem

[Aoen]

Alright even a ten year old kid knows the equation distance = time * speed, it's just common sense. Well the my problem is simple. World Editor seems to be having problems with something that even a 10 year old kid knows. Here is an example of one of my abilities:
Spinning Bolt
Events
Unit - A unit Begins casting an ability
Conditions
(Ability being cast) Equal to Spinning Bolt
Actions
Wait (Distance between target unit of ability being cast and triggering unit / MISSILE SPEED)

This ability either damages the target before or after the missile hits. Is it because of the missile's arc, or is it because the target can move during the wait time. If so please give me a new way to make abilities that are based on distance between the caster and the target, and missile speed.

 

[donut3.5]

It is probably because of two things.
1- A projectile begins when the EFFECT of a spell begins, not when the casting begins.
2- The point of the unit is the point at which the unit is located at the BEGINNING of the spell. The wait duration will not accomadate to changes in position.
--donut3.5--

 

[PurplePoot]

3 - waits are innaccurate.

 

[paskovich]

try moving a dummy unit as the projectile

 

[Thunder_eye]

Ive made a projectile system which uses a dummy unit as projectile.
If you want to use it I'll give the link