Detecting a point target ability

[Moridin]

Hey. I was wondering if there's any way to detect if an ability cast is a point target ability or not?

For example, you can detect if it's a unit target ability by using the condition:

(Target unit of ability being cast) Not Equal to No unit

I tried using the Integer condition:

(Distance between (Position of (Triggering unit)) and (Target point of ability being cast)) Greater than 0

...but that also triggers for an ability that doesn't have a target at all.

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Another question, would certain passive abilities like critical strike have a unit target on proc?

 

[the_ideal]

Set location_temp to the point of the ability being cast and then create a dummy unit at location_temp. Then check to see if the unit is within 50 of the point. Then remove the unit.

There might be a better way but this should work, and it shouldn't lag.

 

[Jedi]

If target unit equal to no unit, then it is a point targeted ability.What you want to detect?

 

[Moridin]

If target unit equal to no unit, then it is a point targeted ability.What you want to detect?

What about no target abilities? Like Thunderclap or any summon spell.

Set location_temp to the point of the ability being cast and then create a dummy unit at location_temp. Then check to see if the unit is within 50 of the point. Then remove the unit.

There might be a better way but this should work, and it shouldn't lag.

I don't see how this would work because:

What if a unit casts a point target ability at his own position?
What if a unit casts a unit target ability. The call for "Target point of ability being cast" will give the center of the map because there is no target point.

 

[Jedi]

Can you explain why you need that?

 

[Ayanami]

Well, you could detect if it's a unit target ability by using:

• (Target unit of ability being cast) Equal to No unit

Then, if this is true, then it HAS to be a point target spell. Just do a simple If/Then/Else.

 

[Bogrim]

If you're using a spell like Shockwave, you can detect the target unit of ability being cast in addition to the target point. If there is no target unit, it's a point target.

 

[Moridin]

Well, you could detect if it's a unit target ability by using:

Trigger:

* (Target unit of ability being cast) Equal to No unit



Then, if this is true, then it HAS to be a point target spell. Just do a simple If/Then/Else.

I don't know if I'm missing something :S. What if I use a spell with no target? Then that condition would return (no unit) just as if I used a point target spell.

Just to clarify, I know how to detect a unit target ability. What I don't know is how to detect a point target ability.

If you're using a spell like Shockwave, you can detect the target unit of ability being cast in addition to the target point. If there is no target unit, it's a point target.

Could you elaborate as to the actions you would use to extract the target point/target unit into a variable?

Can you explain why you need that?

If you look at the resource I submitted Energy Flow, the spell essentially is a meant to be a supplement to other targeted spells. Currently it only works for unit target abilities because that's all I can detect. I need a way to detect if the ability is a point target ability and change all the neccessary variables accordingly.

 

[sentrywiz]

Do you need this for an ability? Or just a detection system?

Here is what I did now. Tested, works... I'm sure you can tweak it for your needs.

• Spell Test
  • Events
    • Unit - A unit comes within 999999.00 of Dummy Spell Control <gen>
    • Unit - A unit Starts the effect of an ability
  • Conditions
    • ((Owner of (Entering unit)) controller) Equal to User
  • Actions
    • If (((Playable map area) contains (Target point of ability being cast)) Equal to True) then do (Game - Display to (All players) the text: test) else do (Do nothing)

No point abilities won't count. Unit target abilities won't count. Only point target abilities. I'm sure you understand the trigger

 

[Bogrim]

Could you elaborate as to the actions you would use to extract the target point/target unit into a variable?

Very simple:

• Shockwave Trigger
  • Events
    • Unit - A unit Starts the effect of an ability
  • Conditions
    • (Ability being cast) Equal to Shockwave
  • Actions
    • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
      • If - Conditions
        • (Target unit of ability being cast) Equal to No unit
      • Then - Actions
        • Game - Display to (All players) the text: point target
      • Else - Actions
        • Game - Display to (All players) the text: unit target

Just set your variable depending on the outcome of the condition.

 

[hgkjfhfdsj]

another alternative is to catch the order type on spell cast (begins casting), for example

• Store Order Type
  • Events
    • Unit - A unit Is issued an order with no target
    • Unit - A unit Is issued an order targeting a point
    • Unit - A unit Is issued an order targeting an object
  • Conditions
  • Actions
    • Custom script: if GetTriggerEventId() == EVENT_PLAYER_UNIT_ISSUED_TARGET_ORDER then
    • Set ordertype = target
    • Custom script: elseif GetTriggerEventId() == EVENT_PLAYER_UNIT_ISSUED_POINT_ORDER then
    • Set ordertype = point
    • Custom script: else
    • Set ordertype = no target
    • Custom script: endif

saving the order type to some unit index then later restoring it on spell effect (starts effect). since units can only be given 1 order at a time, 1D unit index array should work. the saved ordertype will always update itself to the latest order so ordering a unit to stop will not break this. im not sure if this will catch autocast spell (im pretty it does) or passive spells, nor have i fully tested it , eg this might break on spells that can target both units and points.

EDIT
not sure if it has been answered, but as for your 2nd question, afaik you cant detect when a passive ability procs so there will not be any event responses (triggering/targeted unit, point etc). most likely you will need to create the passive ability from scratch then fire the event itself, attaching the appropriate unit/location.