Core Concepts

HealthSystem structures vitality into intuitive defensive layers.

Damage Absorption Flow#

When an actor receives damage, HealthSystem evaluates protection in this order:

1. Invulnerability Check: If the actor is currently immune or in post-hit cooldown, incoming damage is discarded.
2. Armor Layer: If armor is equipped, incoming damage is mitigated by the armor rating percentage before passing through.
3. Shield Layer: Depletes shield points first. If damage exceeds remaining shields, the leftover damage spills over to health.
4. Health Layer: Reduces base health. If health reaches 0, the component triggers the On Death event.

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Server Authority & Replication#

In multiplayer games:

• The Server calculates all damage, mitigation, and regeneration.
• Vital statistics replicate to clients using Unreal's optimized replication with RepNotifies.
• UI elements bind directly to delegate events, ensuring zero jitter and immediate updates.