sc2data-behaviors-validators

name

sc2data-behaviors-validators

description

SC2 Data Editor — Behaviors (buffs, debuffs, auras, timers) and Validators (conditional tests) in XML. Use when creating or modifying CBehavior* (buff, attribute modifier, unit tracker, reveal) or CValidator* (unit type, unit order, comparison, combine) entries. Also covers behavior stacking, duration, Vitals modification, and how validators gate effects, abilities, and behaviors. Do not use for applying a behavior via an effect (use sc2data-effects-weapons) or actor visuals tied to a behavior (use sc2data-actors-visuals).

SC2 Data Editor – Behaviors & Validators

Behaviors are persistent passive effects on a unit — buffs, debuffs, auras, timed life, stat modifications. Validators are boolean tests used anywhere in data to gate whether something happens — in effects, abilities, behaviors, and actors.

Key References

Resource	URL
Validators guide	https://s2editor-guides.readthedocs.io/New_Tutorials/04_Data_Editor/071_Validators/
Data Editor Introduction	https://s2editor-guides.readthedocs.io/New_Tutorials/04_Data_Editor/058_Data_Editor_Introduction/
SC2Mapster wiki	https://sc2mapster.wiki.gg/
Behaviors (wiki)	https://sc2mapster.wiki.gg/wiki/Data/Behaviors
Validators (wiki)	https://sc2mapster.wiki.gg/wiki/Data/Validators
ShadowDragon Base.SC2Data (real GameData XML reference)	https://github.com/ShadowDragonSC2/Base.SC2Data/tree/main/GameData

---

File placement: When creating behaviors for a new unit or ability, put them in the unit's own self-contained XML file (GameData/Faction/UnitName/UnitName.xml), not in a monolithic BehaviorData.xml. Register the file via <Catalog path="..."/> in GameData.xml. See the sc2data-units-abilities skill for the full file template.

Behaviors (BehaviorData.xml)

File: Base.SC2Data/GameData/BehaviorData.xml

Behaviors are applied to units via CEffectApplyBehavior and removed via CEffectRemoveBehavior or expiry.

Behavior Types

XML Type	Purpose
CBehaviorBuff	General-purpose buff/debuff; most common type
CBehaviorAttributeModifier	Modify unit stats (Speed, Armor, HP, etc.)
CBehaviorUnitTracker	Track units and fire effects at count thresholds
CBehaviorReveal	Reveal unit (remove stealth or reveal allies to enemies)
CBehaviorAbilityModifier	Modify ability parameters dynamically
CBehaviorResource	Resource regeneration (minerals, vespene)

---

CBehaviorBuff — General Buff/Debuff

<CBehaviorBuff id="MyStunBehavior">
    <EditorCategories value="AbilityorEffectType:Targeted"/>
    <Duration value="3"/>                          <!-- seconds; 0 = permanent until removed -->
    <DurationBonusArray index="HeroKills" value="1"/>  <!-- duration bonus per hero kill (if applicable) -->
    <MaxCount value="1"/>                          <!-- max stacking instances on one unit -->

    <!-- While active: disable unit's movement and attack -->
    <DisableArray index="Move" value="1"/>
    <DisableArray index="Attack" value="1"/>

    <!-- Validators to keep behavior active; false = disable while condition fails -->
    <ValidatorArray type="Disable" index="0" value="IsTargetAlive"/>

    <!-- Validators to permanently remove behavior -->
    <ValidatorArray type="Remove" index="0" value="IsTargetAboveHalfHP"/>

    <!-- Periodic effect while behavior is active -->
    <PeriodicEffectArray index="0" value="MyDoTEffect" Period="1"/>

    <!-- Effects fired on apply/expire -->
    <OnUnitBirth value="MyBuffApplyEffect"/>
    <OnRemove value="MyBuffExpireEffect"/>
</CBehaviorBuff>

Key CBehaviorBuff fields

Field	Purpose
Duration	How long the behavior lasts (0 = permanent)
MaxCount	Maximum stacking instances on one unit
DisableArray	Disable a unit command while active (Move, Attack, Hold, etc.)
PeriodicEffectArray	Effect fired every N seconds while active
OnUnitBirth	Effect fired when behavior is first applied
OnRemove	Effect fired when behavior expires/is removed
InitVitalArray	Modify a vital when applied (e.g. heal on apply)
VitalMaxArray	Modify max vital while active

---

CBehaviorAttributeModifier — Stat Modifier

<CBehaviorAttributeModifier id="SpeedBoost">
    <Duration value="10"/>
    <Modification>
        <SpeedMultiplier value="1.5"/>     <!-- 50% speed increase -->
    </Modification>
</CBehaviorAttributeModifier>

<CBehaviorAttributeModifier id="ArmorReduction">
    <Duration value="0"/>                  <!-- permanent until removed -->
    <Modification>
        <LifeArmorBonus value="-2"/>       <!-- reduce armor by 2 -->
    </Modification>
</CBehaviorAttributeModifier>

Common Modification fields

Field	Meaning
SpeedMultiplier	Multiply movement speed (1.0 = no change)
LifeArmorBonus	Add/subtract armor
ShieldArmorBonus	Add/subtract shield armor
KillBountyModifier	Multiply kill bounty
DamageDealtFraction	Multiply outgoing damage
DamageTakenFraction	Multiply incoming damage
LifeRegenRate	HP per second regeneration

---

Behavior Stacking

<CBehaviorBuff id="PoisonStack">
    <MaxCount value="10"/>          <!-- allow up to 10 stacks -->
    <Stack value="Duration"/>       <!-- stacking resets duration each application -->
</CBehaviorBuff>

Stack modes: Duration (reset timer), None (add count only), Any (max of duration and count).

---

Aura Pattern (Behavior + Search Effect + Apply)

Auras are implemented as a looping effect on a behavior:

<!-- 1. The aura behavior on the source unit -->
<CBehaviorBuff id="HealingAuraBehavior">
    <Duration value="0"/>
    <PeriodicEffectArray index="0" value="HealingAuraSearch" Period="1"/>
</CBehaviorBuff>

<!-- 2. A search effect finds nearby allies -->
<CEffectSearch id="HealingAuraSearch">
    <AreaArray index="0" Radius="3" Effect="HealingAuraApply"
               TargetFilters="Alive;Self,Enemy,Neutral,Dead"/>
</CEffectSearch>

<!-- 3. Apply a heal behavior to each found unit -->
<CEffectApplyBehavior id="HealingAuraApply">
    <Behavior value="HealingAuraHeal"/>
</CEffectApplyBehavior>

---

Validators (ValidatorData.xml)

File: Base.SC2Data/GameData/ValidatorData.xml

Validators return true or false. They are used in:

• Effects — false = effect not applied
• Behaviors Disable — false = behavior disabled (dormant) while condition fails
• Behaviors Remove — false = behavior permanently removed
• Abilities — false = ability unavailable / grayed out
• Actor Terms — via ValidateUnit UpgradeId term

Naming Convention

Named as sentence fragments describing the true condition:

"CasterNotBurrowed"       — true when caster is not burrowed
"TargetIsAlive"           — true when target is alive
"IsPhoenix"               — true when unit type is Phoenix
"PlayerHasBarracks"       — true when player owns at least one Barracks

---

Validator Types

XML Type	Tests
CValidatorUnitType	Is unit a specific type?
CValidatorUnitOrder	Is unit performing a specific order/ability?
CValidatorUnitComparison	Compare a unit vital/value to a threshold
CValidatorPlayerComparison	Compare a player resource to a threshold
CValidatorCombine	AND / OR / NOT of other validators
CValidatorPlayerRequirement	Does player meet a tech requirement?
CValidatorLocationPathable	Is a location pathable?
CValidatorConditionCustom	Galaxy-script custom condition (advanced)

---

CValidatorUnitType — check unit type

<CValidatorUnitType id="IsZergling">
    <UnitType value="Zergling"/>
    <!-- Negate field not set = true when IS Zergling -->
</CValidatorUnitType>

<CValidatorUnitType id="IsNotHero">
    <UnitType value="HeroBase"/>
    <Negate value="1"/>   <!-- true when unit is NOT a hero -->
</CValidatorUnitType>

CValidatorUnitComparison — compare unit stat

<CValidatorUnitComparison id="TargetBelowHalfHP">
    <WhichUnit value="Target"/>
    <Value index="0" value="Life"/>
    <Value index="1" value="LifeMax"/>
    <Fraction value="0.5"/>         <!-- 50% threshold -->
    <Compare value="LT"/>           <!-- Less Than: life < 50% max -->
</CValidatorUnitComparison>

Compare operators: LT (less than), LE (≤), EQ (equal), GE (≥), GT (greater than), NE (not equal).

CValidatorPlayerComparison — check player resource

<CValidatorPlayerComparison id="PlayerHasEnoughMinerals">
    <Value index="0" value="Minerals"/>
    <Compare value="GE"/>
    <Threshold value="100"/>
</CValidatorPlayerComparison>

CValidatorCombine — boolean logic

<!-- AND: both must be true -->
<CValidatorCombine id="TargetAliveAndNotShielded">
    <Type value="And"/>
    <ValidatorArray index="0" value="TargetIsAlive"/>
    <ValidatorArray index="1" value="IsNotShielded"/>
</CValidatorCombine>

<!-- OR: at least one must be true -->
<CValidatorCombine id="IsGroundOrStructure">
    <Type value="Or"/>
    <ValidatorArray index="0" value="IsGround"/>
    <ValidatorArray index="1" value="IsStructure"/>
</CValidatorCombine>

<!-- NOT: negate a validator -->
<CValidatorCombine id="NotCloaked">
    <Type value="Not"/>
    <ValidatorArray index="0" value="IsCloaked"/>
</CValidatorCombine>

CValidatorUnitOrder — check if unit is performing an order

<CValidatorUnitOrder id="TargetIsAttacking">
    <WhichUnit value="Target"/>
    <Abil value="Attack"/>
</CValidatorUnitOrder>

---

Validators in Context

In effects (gates application):

<CEffectDamage id="FinisherDamage">
    <Amount value="200"/>
    <ValidatorArray index="0" value="TargetBelowHalfHP"/>  <!-- only deal if below 50% HP -->
</CEffectDamage>

In behaviors — Disable (temporarily dormant):

While the validator returns false, the behavior is suppressed but stays on the unit:

<CBehaviorBuff id="AuraOnlyWhileMoving">
    <ValidatorArray type="Disable" index="0" value="TargetIsMoving"/>
</CBehaviorBuff>

In behaviors — Remove (permanently stripped):

When the validator returns false, the behavior is removed entirely:

<CBehaviorBuff id="ExpiresWhenFullHP">
    <ValidatorArray type="Remove" index="0" value="TargetBelowHalfHP"/>
</CBehaviorBuff>

In abilities (gates availability):

Ability is grayed out / uncastable when validator returns false:

<CAbilEffectTarget id="MyAbility">
    <ValidatorArray index="0" value="NotBurrowed"/>
</CAbilEffectTarget>

In actor Terms:

<On Terms="ActorCreation; ValidateUnit MyUpgrade" Send="AnimGroupApply Superior"/>

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Best Practices

• Name validators as true-condition fragments: prefer "TargetIsAlive" over "NotDead".
• Use CValidatorCombine with type="And" rather than stacking multiple ValidatorArray entries if you need to reuse the combination elsewhere.
• Disable validators keep the behavior instance alive (useful for toggleable auras). Remove permanently strips — use when the behavior should be gone forever if the condition fails.
• Set MaxCount value="1" on most buffs to prevent unintended stacking.
• For auras: put the PeriodicEffectArray on the source unit's behavior, and use a CEffectSearch to reach nearby targets — never apply directly to all units from the behavior.
• Keep validators simple and composable — build complex logic from CValidatorCombine of simple validators.