Buffs C++ API

Class: UBaseBuff — Source/LesDeuxPelos/Public/Buffs/BaseBuff.h
Inherits: UActorComponent

Overview

A buff is a component added to a character at runtime that modifies its stats.
Applied via ALesDeuxPelosCharacter::AddBuff(), removed via RemoveBuff().

Properties

Timing

Property	Type	Default	Description
Duration	float	0.0	Seconds the buff lasts. 0 = infinite (until owner destroyed).
IsBuffTicking	bool	false	If true, BuffTriggered() is called repeatedly on TickCooldown intervals.
TickCooldown	float	0.0	Interval between ticks (seconds). Used only when IsBuffTicking = true.

Stat multipliers

All multipliers are multiplicative on the owner's existing modifier.
1.0 = no change. 1.1 = +10%. 0.9 = −10%.

Property	Type	Default	Affects
PassiveCooldownMultiplier	float	1.0	Passive fire rate
MovementSpeedMultiplier	float	1.0	Character movement speed
DamageResistanceMultiplier	float	1.0	Damage received
HealingReceivedMultiplier	float	1.0	Healing received
HealingDoneMultiplier	float	1.0	Healing done
PassiveDamageMultiplier	float	1.0	Damage dealt by passives

UI & Combo

Property	Type	Description
Icon	UTexture2D*	Buff icon (128×128 recommended).
RequiredBuffs	TArray<TSubclassOf<UBaseBuff>>	Buff classes that must already be present on the owner for this buff to apply.

Methods

Method	Access	Description
BeginPlay()	protected	Applies stat modifiers to owner on start. Sets up tick timer if needed.
BuffTriggered()	public virtual	Called every TickCooldown seconds when IsBuffTicking. Override in Blueprint or C++.
ResetStats()	public BlueprintCallable	Reverses all stat changes applied by this buff. Called before removal.
GetRequiredBuffs()	public const	Returns RequiredBuffs.

Lifecycle

AddBuff(BP_Buff) called on character
  → Component created and attached
  → BeginPlay: stat modifiers applied to owner
  → if IsBuffTicking: timer starts calling BuffTriggered()
  → TickComponent: tracks Lifetime vs Duration
  → Duration reached → RemoveBuff called → ResetStats() → component destroyed

Blueprint usage

Create a Blueprint child of UBaseBuff. See Create a Buff.