Waiting for a dummy projectile to reach a point for an action

[shiFt]

How would i send a projectile to a target unit then hid ethe caster, then wait until the projectile hits the target unit for the caster to be revealed again? wait for condition? timers, iv never used them?

 

[DeathWing]

Set DummyProj = (last created unit) [when creating dummy]
Set TargetProj = (Target of ability being cast) [target of spell]
Add event (TargetProj receives damage)
Separate trigger
Events
(added one)
Condition
(Damage source equal to DummyProj)
Actions
Whatever u want

 

[Dinowc]

in the slide trigger (if you're using a dummy) check any enemy unit in range

e: every 0.03 seconds of game time
c:
a: set dummy_point = position of "your dummy"
   set move_point = dummy_point offset by 50 towards facing of "your dummy" degrees
   move "your dummy" to move point   
   set real_count = real_count + 50
   set impact_group = units within 50 of dummy_point matching (matching unit belongs to an enemy of owner of "the dummy")
   pick every unit in impact_group and to actions
      set picked_pos = position of picked unit
      if then else
         if distance between dummy_point and picked_pos less than or equal to 50
         remove "dummy" from the game
         "do whatever you want with the unit"         
       call RemoveLocation(udg_picked_pos)
   if real_count greater than or equal to (whatever)
      remove the "dummy" from game
   call RemoveLocation(udg_dummy_point)
   call RemoveLocation(udg_move_point)

this is not MUI ofc, but you can easily make it so

 

[Nerfpl]

use vex's caster system and then you type like 10 things less. just create missile and specify on hit action. ^^

 

[shiFt]

Ty dinowc! ill definatly try that trigger and post if i have and issues. Ty guys for all the help!How would i do this if i had multiple projectiles moving?How would i calculate how much the real value would need to be before i remove the dummy unit?
Also sometimes the dummy goes skew, like totally misses the target. Is there an angle i can set so that it goes straight?

I tried setting it to the facing angle of the caster but during battle the caster changes its facing angle and the trigger bugs, the dummy goes in the wrong direction.