Overview

WCGASBossPhaseComp is a comprehensive ActorComponent that manages boss encounter phases in the Gameplay Ability System. It automatically evaluates phase transition conditions each tick, applying phase-specific effects, abilities, and tags to create dynamic multi-phase boss encounters. The component supports health-based transitions, tag requirements, status effect conditions, time gates, and fully custom conditions via Blueprint or C++. It integrates with difficulty systems for per-difficulty phase configurations and replicates phase state to clients for UI synchronization.

Core Functionality

• Manages boss phase transitions via configurable entry/exit conditions
• Evaluates phases by priority order (highest first) each tick
• Applies GameplayEffects when entering/exiting phases
• Grants/removes GameplayTags during phase duration
• Provides phase-specific ability tag queries for AI systems
• Supports difficulty-based phase data overrides
• Caches AbilitySystemComponent and StatusEffectComponent references for condition evaluation
• Broadcasts phase change events via component delegate and AI Combat Subsystem
• Replicates current phase tag to clients for UI updates
• Supports forced phase transitions for scripted encounters

Initialization Flow

Automatic Initialization (Default Behavior):

1. Component reaches BeginPlay
2. Server authority check (phase evaluation only runs on server)
3. Caches reference to owner's AbilitySystemComponent (interface → component search)