Hello guys

[athena]

I saw a bug in wc3 about black arrow
When i play dark ranger and activate black arrow and use on a enemy unit it works normally

But computer player hero dark ranger dosnt cast it or fires black arrow untill her target's hp becomes 10% or lower but other arrows like searing arrows and frost arrows fire rapidly as hero has enough mana

i want balck arrow to fire normaly like user players or other orb arrows but it doesn't i changed and edited every single settings and stats of this black arrow in editor but doesn't work

 

[Goldfinger]

I'm pretty sure that's typical AI behavior with that specific spell.

You're probably better off triggering your own version with a dummy spell based on envenomed spears (with a custom buff). Use the "A Unit Dies" event, and if the dying unit has your custom buff, do X things.

 

[athena]

I made a arrow based on poison arrows and used trigger to create skeletons of black arrow
Dying unit has black arrow buff equal to true
Then create 1 skeleton etc
But dying unit condition doesn't work

 

[Chaosium]

Unfortunately yes a dying/dead unit is considered to have no buffs so you can't use that condition

Have you tried setting it as the default active ability here?

I don't think the computer can turn it off on its own

 

[Goldfinger]

I made a arrow based on poison arrows and used trigger to create skeletons of black arrow
Dying unit has black arrow buff equal to true
Then create 1 skeleton etc
But dying unit condition doesn't work

Bribe's Damage Engine can detect buffs on dying units fairly well IIRC.

Can try it that way.

Edit: If not, could always just check if killing unit has ability. Another alternative would be to use the damage engine and have a dummy unit apply a parasite clone to the target unit being damaged by arrow.

 

[athena]

Unfortunately yes a dying/dead unit is considered to have no buffs so you can't use that condition

Have you tried setting it as the default active ability here?

View attachment 575941

I don't think the computer can turn it off on its own

Yes i did also i made a unit ability black arrow and gave it to dark ranger normal ability beside of inventory still didn't work

 

[the.Axolotl]

AI is hardcoded to use Black Arrow as a finishing move so to speak, since it is hardcoded that way, the best way to bypass this is to create your own system by creating a custom orb ability.

• Events
  • Game - DamageEvent becomes Equal to 1.0
• Conditions
  • (DamageEventSource) Equal to DarkRanger
• Actions
  • Set TempUnit = DamageEventTarget
  • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
    • If - Conditions
      • (DarkRanger has custom orb ability) Equal to True // or use a buff check
    • Then - Actions
      • // Apply a dummy buff to the target
      • Unit - Create 1 DummyUnit for (Owner of DarkRanger) at (Position of TempUnit) facing default
      • Unit - Add DummyBuffAbility to (Last created unit)
      • Unit - Order (Last created unit) to Human Sorceress - Slow TempUnit
      • Unit - Add a 2.00 second Generic expiration timer to (Last created unit)
      • // Store relationship (optional, for debugging)
      • Set CustomValue[TempUnit] = (Custom value of DarkRanger)
    • Else - Actions
• Events
  • Unit - A unit Dies
• Conditions
  • (Custom value of (Dying unit)) Not equal to 0 // or use a custom value to indicate it was marked
• Actions
  • Set TempPoint = (Position of (Dying unit))
  • Unit - Create 1 Skeleton for (Owner of DarkRanger) at TempPoint facing default
  • Custom script: call RemoveLocation(udg_TempPoint)
  • // Reset custom value
  • Set CustomValue[(Dying unit)] = 0

---

• Events
  • Game - DamageEvent becomes Equal to 1.0 (using Bribe's Damage Engine)
• Conditions
  • (DamageEventSource) is a Hero equal to True // optional, or check specific unit type
  • (DamageEventSource) has your custom orb ability equal to True
• Actions
  • Set TempTarget = DamageEventTarget
  • Set TempSource = DamageEventSource
  • // Store the source in hashtable, keyed by the target unit's handle ID
  • Custom script: call SaveUnitHandle(udg_BlackArrowHash, GetHandleId(udg_TempTarget), 0, udg_TempSource)
  • // Also store a timestamp or simply rely that the buff will be removed after death
  • // Optionally apply a dummy buff for visual feedback, but not needed for logic
• Events
  • Unit - A unit Dies
• Conditions
• Actions
  • Set TempDying = (Dying unit)
  • Custom script: set udg_TempSource = LoadUnitHandle(udg_BlackArrowHash, GetHandleId(udg_TempDying), 0)
  • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
    • If - Conditions
      • TempSource Not equal to No unit
    • Then - Actions
      • Set TempPoint = (Position of TempDying)
      • Unit - Create 1 Skeleton for (Owner of TempSource) at TempPoint facing default
      • Custom script: call RemoveLocation(udg_TempPoint)
      • // Clean up hashtable entry
      • Custom script: call RemoveSavedHandle(udg_BlackArrowHash, GetHandleId(udg_TempDying), 0)
    • Else - Actions

This should work with dmg engine;
I’ll give this a test later today, so this should basically be customizable since the ai will treat this as any other attack modifier. Regards!

 

[Mechezarin]

Looks like AI is smart and saving mana by activating black arrow only on low hp targets.
Maybe try to make own ability based on flame arrows and...

event: unit is damaged
condition: if level of ability "your black arrow (based on flame arrow)" higher than 0
Action= add (ability) black arrow bull to triggering unit.
(not sure how game would determine owner of spawned unit,

it would need extra trigger with action "add event[unit is damaged] to main trigger
and some extra conditions to avoid infinite loop if both targers have this ability)



2nd idea
As i know black arrow could be used like regular spell with target

event=unit is attacked
Condition=level of black arrow higher than 0 (original black arrow)
Action= order attacking unit to cast Black Arrow on attacked unit.

 

[Uncle]

Looks like AI is smart and saving mana by activating black arrow only on low hp targets.
Maybe try to make own ability based on flame arrows and...

event: unit is damaged
condition: if level of ability "your black arrow (based on flame arrow)" higher than 0
Action= add (ability) black arrow bull to triggering unit.
(not sure how game would determine owner of spawned unit,

it would need extra trigger with action "add event[unit is damaged] to main trigger
and some extra conditions to avoid infinite loop if both targers have this ability)



2nd idea
As i know black arrow could be used like regular spell with target

event=unit is attacked
Condition=level of black arrow higher than 0 (original black arrow)
Action= order attacking unit to cast Black Arrow on attacked unit.

I'd say the 2nd idea is best, Damage Events introduce overhead and hurt performance - assuming you don't already use them. Forcing the AI to "behave properly" is lightweight. Also, "A unit is attacked" may have similar overhead implications but it's definitely a less complicated Event.