trigger went wrong when multi-casting, plz help

[StygianSaint]

hi, here is a spell that consume the caster's hp and then damage the target based on how much hp(random) it has consumed.
when i test it, it works perfectly when only 1 tower using this ability.
however when i test it with 2 or more tower, things went totally wrong!
first the floating text mess up, and the target got kill right away most of the time when the trigger execute the part [Unit - Cause (Triggering unit) to damage DeathRayTarget, dealing DeathRayDamage damage of attack type Chaos and damage type Normal]. note that my test target have 5000 hp, with 2 tower the max possible random hp that consume have no way to deal more than 5000 damage
can anyone plz help to make this work? thx

• Untitled Trigger 004
  • Events
    • Unit - A unit Begins casting an ability
  • Conditions
    • And - All (Conditions) are true
      • Conditions
        • (Ability being cast) Equal to |cffffcc00A|rutocast
        • (Unit-type of (Triggering unit)) Equal to Gnomish Death Ray Tower
        • (Life of (Triggering unit)) Greater than 10.00
  • Actions
    • Set DeathRayTarget = (Target unit of ability being cast)
    • Set DeathRayHP = 0.00
    • Set DeathRayDamage = 0.00
    • Set TempPoint = (Position of (Triggering unit))
    • For each (Integer A) from 1 to 4, do (Actions)
      • Loop - Actions
        • Set DeathRayHP = ((Random real number between 0.01 and 0.24) x (Life of (Triggering unit)))
        • Unit - Cause (Triggering unit) to damage (Triggering unit), dealing DeathRayHP damage of attack type Chaos and damage type Normal
        • Set DeathRayDamage = (DeathRayDamage + DeathRayHP)
        • Wait 1.00 seconds
    • Set DeathRayDamage = (DeathRayDamage x 2.00)
    • Wait 0.50 seconds
    • Unit - Cause (Triggering unit) to damage DeathRayTarget, dealing DeathRayDamage damage of attack type Chaos and damage type Normal
    • Floating Text - Create floating text that reads ((String(DeathRayDamage)) + !) at TempPoint with Z offset 5.00, using font size 10.00, color (100.00%, 0.00%, 0.00%), and 0.00% transparency
    • Wait 3.00 seconds
    • Floating Text - Destroy (Last created floating text)
    • Custom script: call RemoveLocation(udg_TempPoint)

**i use loop b/c i want to make it look like the caster consuming its hp over time, then shoot out a laser/ray at the target afterward

 

[Dougletron]

You'd have to remove all the Waits to make it multi instance-able.

 

[StygianSaint]

ty now works fine but how do i make the consume own hp over time effect?
if i make another trigger to check any unit cast the ability and it will result to the same problem because of [wait], cause there is more than 1 caster

 

[emperor_d3st]

Learning JASS and using locals would be the simplest path, but if you don't feel like JASSing then you could make an ability based on something that gives you hp / second to drain hp.