API Reference

Public types

Class / Struct	Category	Description
`UCrimsonAbilitySystemComponent`	Core	Extended ASC - the runtime hub for all ability operations
`UCrimsonGameplayAbility`	Core	Base ability class; derive all project abilities from this
`UCrimsonAbilityContract`	Data	Data asset publishing an ability's properties, events, and augment slots (replaces `UCrimsonAbilityDefinition`)
`UCrimsonAbilityAugment`	Augments	Data asset defining a stat/tag/GE/actor mutation, slotted onto an ability via its contract
`UCrimsonAugmentAction`	Augments	Base class for inline augment actions
`UCrimsonStatefulAugmentBase`	Augments	Base class for event-driven persistent augment listeners (server only)
`ACrimsonAbilityCharacter`	Actors	Character wiring the PS-owns-ASC lifecycle
`ACrimsonAbilityPlayerState`	Actors	Player state that owns the ASC; survives pawn respawn
`ACrimsonAbilityPlayerController`	Actors	Drives `ProcessAbilityInput` in `PostProcessInput`
`UCrimsonAbilityCost`	Costs	Base class for additional costs beyond the GE cost
`UCrimsonAbilityCost_PlayerTagStack`	Costs	Deducts from a gameplay tag stack on the ASC
`UCrimsonComboGraphAsset`	Combo	Designer-authored combo graph (steps + transitions)
`UCrimsonComboController`	Combo	Runtime combo driver component on the pawn
`UCrimsonComboTransitionCondition`	Combo	Blueprintable observer gating a transition's augment grants
`UCrimsonGlobalAbilitySystem`	Subsystems	Apply abilities/GEs to all registered ASCs
`UCrimsonGamePhaseSubsystem`	Subsystems	Server-only game-phase flow via GAS abilities
`UCrimsonAbilitySystemSettings`	Config	Project Settings -> Crimson -> Crimson Ability System (combo IMC, move action, TTL, ping cap)
`UCrimsonAbilitySystemGlobals`	GAS Infra	Custom globals class; register via `AbilitySystemGlobalsClassName`
`UCrimsonAttributeSet`	Attributes	Base attribute set with a typed `GetCrimsonAbilitySystemComponent()` helper; derive project attribute sets from it
`FCrimsonEffectStackConsumptionResult`	Structs	Result of a stack consumption with partial-consume helpers
`FCrimsonAugmentEventPayload`	Structs	Payload passed to augment actions and stateful listeners
`ECrimsonEquipFailure`	Enums	Reason an augment equip was rejected (returned by the equip API)

GameplayEffect extensions

Class	Description
`UCrimsonModifierGameplayEffectComponent`	Registers tag-based attribute modifiers on the ASC while the GE is active
`UCrimsonAccumulateGameplayEffectComponent`	Accumulates a value before applying it as a stack or magnitude
`UCrimsonGameplayEffectComponent_ApplyToInstigator`	Re-applies the effect to the instigator (self-damage, lifesteal)
`UCrimsonGameplayEffectStackingSubsystem`	World subsystem for cross-ASC stacking logic

Deprecated

UCrimsonAbilityDefinition is deprecated in favor of UCrimsonAbilityContract and is scheduled for removal. Migrate ability AbilityDefinition references to AbilityContract.