Difference between revisions of "OnHit - ObjectReference"

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(→‎Notes: Reverting changes while I test out to be sure.)
 
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   Debug.Trace("We were hit by " + akAggressor)
   Debug.Trace("We were hit by " + akAggressor)
EndEvent
EndEvent
</source>
To avoid the hits from enchantments running the code block one must compare the ''akSource'' to the actual reference that hit the actor/object.
For instance, say we have a weapon with 2 enchantments called "Fire/Ice Sword." When hit with this sword the hit registers as 3 separate hits, but you have code such as:
<source lang="papyrus">
Event OnHit(ObjectReference akAggressor, Form akSource, Projectile akProjectile, bool abPowerAttack, bool abSneakAttack, \
  bool abBashAttack, bool abHitBlocked)
if(akSource as Weapon)
  Variable1 -= 100
EndEvent
</source>
This would actually subtract 300 from Variable1 since the event was called 3 times simultaneously, even though the akSource has been cast as a weapon papyrus counts the hit from the enchantments as "weapons" too so the enchantments are reference as (akSource as Weapon) as well. So the solution is to be more explicit.
<source lang="papyrus">
Event OnHit(ObjectReference akAggressor, Form akSource, Projectile akProjectile, bool abPowerAttack, bool abSneakAttack, \
  bool abBashAttack, bool abHitBlocked)
Form RightHandSword = akAggressor.GetEquippedWeapon(0); this gets the sword that the enemy had in their right hand and stores it as an object variable
if((akSource as weapon) == RightHandSword
;do code stuff
EndEvent
</source>
This will still call the event 3 times, but the code will only fire once when (akSource as weapon) == RightHandSword
*1st hit: Sword: (akSource as weapon) == RightHandSword - fires code
*2nd hit: Enchant1: (akSource as weapon) == SomeEnchant1 - nothing happens
*3rd hit: Enchant2: (akSource as weapon) == SomeEnchant2 - nothing happens
If you had the exact same script but only want the code to run when the actor/object that has the script with the OnHit Event is hit with a certain enchantment, regardless of the sword then:
<source lang="papyrus">
Enchantment Property ''TheEnchantment'' Auto
Event OnHit(ObjectReference akAggressor, Form akSource, Projectile akProjectile, bool abPowerAttack, bool abSneakAttack, \
  bool abBashAttack, bool abHitBlocked)
if((akSource as weapon) == ''TheEnchantment''
;do code stuff
EndEvent
</source>
With this code the Actor/Object with the OnHitEvent script could be hit by 5 different weapons but the onhit event will only fire when the weapon has ''TheEnchantment'' and it will only fire once.
</source>
</source>


== Notes ==
== Notes ==
akSource and akProjectile can be None under various circumstances:
akSource and akProjectile can be None under various circumstances:
*If specifying akSource, for example as a Weapon, akSource must be ''cast'' to the form that corresponds to the type. For instance, if(akSource ''as'' Weapon)...akSource = Weapon will yield a compiler error.
*This reference is an [[Actor Script|Actor]]:
*This reference is an [[Actor Script|Actor]]:
**akSource can be None if hit by a projectile attack where the projectile was not fired by a weapon or spell
**akSource can be None if hit by a projectile attack where the projectile was not fired by a weapon or spell
**akSource can be None if hit by a bash attack from a carried light object (e.g., a torch)
**akSource can be None if hit by a bash attack from a carried light object (e.g., a torch)
**akProjectile can be None if hit by a melee attack.
**akProjectile can be None if hit by a melee attack.
***In fact, at least in SE, akProjectile appears to ''always'' be None if the reference is an Actor, although it does work as expected for some other types, such as Activators.
*This reference is ''not'' an [[Actor Script|Actor]]:
*This reference is ''not'' an [[Actor Script|Actor]]:
**akSource can be None if hit by a projectile attack where the projectile was not fired by a weapon (for example, a magic spell with a projectile component).
**akSource can be None if hit by a projectile attack where the projectile was not fired by a weapon (for example, a magic spell with a projectile component).
**akProjectile can be None if hit by a melee attack.
**akProjectile can be None if hit by a melee attack.
Also, if this reference is an [[Actor Script|Actor]] and the projectile was caused by a weapon enchant, the enchanted weapon will be in akSource.
Also, if this reference is an [[Actor Script|Actor]] and the projectile was caused by a weapon enchant, the enchanted weapon will be in akSource.
*This event is called multiple times when akSource has associated magic effects. If a sword has an enchantment with 2 effects, OnHit will be called 3 times - once for the physical damage of the sword and once for each magic effect. In all cases, akSource is the sword and not the enchantment. This also applies to spells (one hit for the spell projectile, and one for each associated magic effect).
*This event is called multiple times when akSource has associated magic effects. If a sword has an enchantment with 2 effects, OnHit will be called 3 times - once for the physical damage of the sword and once for each magic effect. In all cases, akSource is the sword and not the enchantment. This also applies to spells (one hit for the spell projectile, and one for each associated magic effect).


== See Also ==
== See Also ==
*[[ObjectReference Script]]
*[[ObjectReference Script]]

Latest revision as of 05:53, 29 January 2023

Member of: ObjectReference Script

Event called when the object reference is hit by a weapon or projectile.

Syntax[edit | edit source]

Event OnHit(ObjectReference akAggressor, Form akSource, Projectile akProjectile, bool abPowerAttack, bool abSneakAttack, \
  bool abBashAttack, bool abHitBlocked)

Parameters[edit | edit source]

  • akAggressor: The ObjectReference that attacked this reference.
  • akSource: The Weapon, Spell, Explosion, Ingredient, Potion, or Enchantment that hit this reference.
  • akProjectile: The Projectile that hit this reference.
  • abPowerAttack: Was the hit caused by a power attack?
  • abSneakAttack: Was the hit caused by a sneak attack?
  • abBashAttack: Was the hit caused by a bash attack?
  • abHitBlocked: Was the hit blocked?

Examples[edit | edit source]

Event OnHit(ObjectReference akAggressor, Form akSource, Projectile akProjectile, bool abPowerAttack, bool abSneakAttack, \
  bool abBashAttack, bool abHitBlocked)
  Debug.Trace("We were hit by " + akAggressor)
EndEvent

Notes[edit | edit source]

akSource and akProjectile can be None under various circumstances:

  • This reference is an Actor:
    • akSource can be None if hit by a projectile attack where the projectile was not fired by a weapon or spell
    • akSource can be None if hit by a bash attack from a carried light object (e.g., a torch)
    • akProjectile can be None if hit by a melee attack.
      • In fact, at least in SE, akProjectile appears to always be None if the reference is an Actor, although it does work as expected for some other types, such as Activators.
  • This reference is not an Actor:
    • akSource can be None if hit by a projectile attack where the projectile was not fired by a weapon (for example, a magic spell with a projectile component).
    • akProjectile can be None if hit by a melee attack.

Also, if this reference is an Actor and the projectile was caused by a weapon enchant, the enchanted weapon will be in akSource.

  • This event is called multiple times when akSource has associated magic effects. If a sword has an enchantment with 2 effects, OnHit will be called 3 times - once for the physical damage of the sword and once for each magic effect. In all cases, akSource is the sword and not the enchantment. This also applies to spells (one hit for the spell projectile, and one for each associated magic effect).

See Also[edit | edit source]

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