Double jump system with jump counter for character

Pattern: Variables JumpCount(int)=0, MaxJumps(int)=2. Jump input → Branch(JumpCount < MaxJumps) → True: LaunchCharacter(0,0,JumpZVelocity) → SET JumpCount+1. OnLanded event → SET JumpCount=0. Don't use built-in Jump for multi-jump — use LaunchCharacter instead.

MultiGate — distribute execution across multiple outputs

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Pickup and collectible system with overlap trigger

Pattern: Pickup actor with SphereCollision(overlap), StaticMesh visual. OnComponentBeginOverlap → CastTo PlayerCharacter → Success: call AddScore/AddItem interface on player → PlaySoundAtLocation → SpawnEmitterAtLocation → DestroyActor(self). Set collision to OverlapOnlyPawn for performance.

DoN — execute N times then stop

LineTraceMulti — raycast returning multiple hits

Cross Product — cross product of two Vectors

Health and damage system with ApplyDamage and EventAnyDamage

Dealing damage: Event → ApplyDamage(TargetActor, BaseDamage, InstigatorController, DamageCauser, DamageTypeClass). Receiving: EventAnyDamage → Damage output → Subtract_FloatFloat(CurrentHealth, Damage) → FClamp(Result, 0, MaxHealth) → SET CurrentHealth → Branch(CurrentHealth <= 0) → True: DestroyActor. Initialize CurrentHealth=MaxHealth in BeginPlay.

Add_VectorVector — add two vectors

Multiply_FloatFloat — multiply two floats

Pin names A and B. C++ name stays Multiply_FloatFloat even in UE 5.7.