Detect when casting frost, flamme or dark arrow

[purparisien]

Hello everyone,
I would like to know if there is a way to know when someone is using the arrows spell. Usually I use ability being cast = IDspell. However, for these spells they are not directly cast. Therefore the ability being cast check doesnt work. Do you know a way to detect these spells ?

 

[Warseeker]

Auto-cast spells like searing arrows, frost arrows or black arrows don't count as normal spells but rather as an issued order/damage event. You will need two triggers to detect them, one that detects when a unit is issued to cast the spell and the other that detects when the target is attacked.
Here's an example on how to detect searing arrows/black arrows :

• Searing Arrows Initial
  • Events
    • Unit - A unit Is issued an order with no target
  • Conditions
  • Actions
    • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
      • If - Conditions
        • (Issued order) Equal to (Order(flamingarrows))
      • Then - Actions
        • Trigger - Turn on Searing Arrows Detection <gen>
      • Else - Actions
    • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
      • If - Conditions
        • (Issued order) Equal to (Order(unflamingarrows))
      • Then - Actions
        • Trigger - Turn off Searing Arrows Detection <gen>
      • Else - Actions

• Searing Arrows Detection
  • Events
    • Unit - A unit Is attacked
  • Conditions
  • Actions
    • Game - Display to (All players) the text: Searing Arrow Detected !

Frost arrows is tricky because it doesn't have an order ID which means you cannot detect it using the method above. However, you can use the event A unit is attacked and check if this latter has a buff caused by Frost arrows using the boolean condition : (Triggering unit) has buff X )

Edit : I just made some testing and I found out that Frost arrows does actually has an order ID

Frost Arrows On : coldarrows
Frost Arrows Off : uncoldarrows

 

[purparisien]

Thanks you Warseeker ! Your technic will work fine !