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.

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.

Overlap trigger: detect player entering a zone and do something once

Pattern: EventActorBeginOverlap → CastTo<BP_Character>(Object=OtherActor) → Cast Succeeded → DoOnce → [your action here]. Key pins: EventActorBeginOverlap outputs 'OverlappedActor' and 'OtherActor'. CastTo input is 'Object', exec outputs are 'Cast Succeeded' and 'Cast Failed'. DoOnce exec output is 'Completed'.

BooleanAND — logical AND

OR=BooleanOR, NOT=Not_PreBool, XOR=BooleanXOR

StopMontage — stop a currently playing AnimMontage

Less (float) — A < B

DoN — execute N times then stop

Pressure plate trigger that activates when enough weight is on it

Pattern: BoxCollision trigger, variable OverlappingActors(int)=0. OnBeginOverlap: OverlappingActors++ → Branch(OverlappingActors >= RequiredCount) → Activate. OnEndOverlap: OverlappingActors-- → Branch(OverlappingActors < RequiredCount) → Deactivate. Use interface or event dispatcher to notify connected actors (doors, platforms).

Overlap

Two collision shapes occupying the same space without blocking. Use for triggers (volume, pickup).

AND Boolean — logical AND of two booleans