Item ability cast triggering

[SnowYell]

Hi,
I want to make an item when carried, giving a chance to cast Chain Lightning.
But I don't want the player to be able to just click the item and manually cast it.

How do I prevent a player from cast it manually?

• Item Hammer of Storms
  • Events
    • Unit - A unit Is attacked
  • Conditions
    • (Item-type of (Item carried by (Attacking unit) in slot 1)) Equal to Hammer of Storms (MH)
  • Actions
    • Set A_Caster = (Attacking unit)
    • Set A_SingleTarget = (Attacked unit)
    • Set A_Counter = (Random integer number between 1 and 10)
    • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
      • If - Conditions
        • A_Counter Less than or equal to 3
      • Then - Actions
        • Hero - Order A_Caster to use (Item carried by A_Caster of type Hammer of Storms (MH)) on A_SingleTarget
        • Game - Display to (All players) the text: yeee
      • Else - Actions
        • Do nothing

Now I know you can abuse it by spamming "stop", because the attack will be triggered even tho the attack ain't succesfully done.

 

[Ardenian]

Create an invisible dummy, give it the chain lightning ability and order it to attack the attack target ( a damage engine is reocmmended, like DDS or PDS)
The item form the unit, you simply add no effect to it.

You could also use my http://www.hiveworkshop.com/forums/spells-569/gui-custom-stacking-orbs-system-v1-4-a-268768/ for this issue, but it might be a bit too much to import a whole system for one issue.

 

[wc3neverdies]

You can use the Elettric orb(new) ability and add the chian lightning to he ability that the orb cast. You can change the the percentage of success.