Mui ?

[defskull]

A single running trigger, does it MUI ?
Example:

• Force Cast
  • Events
    • Unit - A unit Starts the effect of an ability
  • Conditions
    • (Ability being cast) Equal to Force
  • Actions
    • Set CasterLoc = (Position of (Triggering unit))
    • Unit - Move (Target unit of ability being cast) instantly to CasterLoc
    • Unit - Add Crow Form to (Target unit of ability being cast)
    • Animation - Change (Target unit of ability being cast) flying height to 300.00 at 150.00
    • Special Effect - Create a special effect attached to the chest of (Target unit of ability being cast) using Objects\Spawnmodels\Orc\OrcSmallDeathExplode\OrcSmallDeathExplode.mdl
    • Special Effect - Destroy (Last created special effect)
    • Unit - Kill (Target unit of ability being cast)
    • Custom script: call RemoveLocation(udg_CasterLoc)

Does it ?

 

[PurgeandFire]

Yeah, that works. Instantaneous triggers should be fine for the most part. (unless you do really whacky things) Timed spells/actions are the ones you should concern over for MUI.

 

[Mac_MacNuggets]

Looks MUI to me but I suggest you use indexing to be sure.

 

[defskull]

So, a Yes or No to the trigger above ?
MUI: ???

 

[PurgeandFire]

Yes, it is MUI. If a spell isn't MUI, that means that it can't be run with multiple units. That usually means that incorrect data is being retrieved. For timed spells, this is common because global data is lost if another unit casts the spell during the timed duration. The fix is any sort of data storage. However, for instantaneous spells such as the one you posted, it doesn't matter. Even if they are cast at the same time, wc3 will process either one before the other, and since there is no time duration involved in it, it will run without any problems.

 

[defskull]

Is it because of local variable ?

• Custom script: local udg_Caster

What makes it MUI ?
Just like JASS, uses local variable, right ?

 

[PurgeandFire]

Local variables help for MUI, yes, but MUI is perfectly doable with globals. (via indexing/structs/etc...) But the thing that makes that spell MUI is that it is instantaneous. (well, not necessarily just that, but that is the main reason why)

 

[defskull]

Also, it uses native (not sure if this the right word ^_^) ?
Like (Triggering unit) and (Target unit of ability being cast)
Right ?