Target Closest Unit

[smileyguyx]

How do you make a trigger that targets the closest unit from another unit with a spell
so like target the closest unit to unit a and hit them with something like chain lightning

 

[KaerfNomekop]

• Damage Closest Unit
  • Events
    • Unit - A unit Starts the effect of an ability
  • Conditions
    • (Ability being cast) Equal to Random Strike
  • Actions
    • Set TempPoint = (Position of (Triggering unit))
    • Set TempUnitGroup = (Units within 500.00 of TempPoint)
    • Set TempReal = 500.00
    • Unit Group - Pick every unit in TempUnitGroup and do (Actions)
      • Loop - Actions
        • Set TempPoint2 = (Position of (Picked unit))
        • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
          • If - Conditions
            • (Distance between TempPoint and TempPoint2) Less than TempReal
          • Then - Actions
            • Set TempUnit = (Picked unit)
            • Set TempReal = (Distance between TempPoint and TempPoint2)
          • Else - Actions
        • Custom script: call RemoveLocation(udg_TempPoint2)
    • Unit - Cause (Triggering unit) to damage TempUnit, dealing 500.00 damage of attack type Spells and damage type Normal
    • Custom script: call RemoveLocation(udg_TempPoint)
    • Custom script: call DestroyGroup(udg_TempUnitGroup)

At the end of the loop, TempUnit is the closest unit to the caster, since the distance between it and the caster is the shortest. So you would perform whatever actions on TempUnit.

 

[smileyguyx]

does that work with chain lightning

 

[vypur85]

> does that work with chain lightning
Yes.

After the loop, create a unit to cast Chain Lightning to TempUnit.
As mentioned, TempUnit is already the closest unit. Just do whatever you want with the unit. Edit the trigger to suit your needs. Then test it out.

 

[Dirac]

That's called selection sort, i suggest you to add the following check
Picked unit not equal to Casting unit
to prevent picking the caster (otherwise the caster would be always the closest unit)

 

[KaerfNomekop]

According to my current problem, Casting unit would be somewhere along the edge of the area :/ But yeah, you should do that, and a few other conditions to eliminate dead units, magic immune units etc.

 

[smileyguyx]

thanks