Door open and close with timeline and trigger volume

Pattern: Door actor with BoxTrigger, DoorMesh, Timeline(Alpha 0→1 over 1s). BeginOverlap → PlayFromStart(Timeline). EndOverlap → Reverse(Timeline). Timeline Update: Lerp(ClosedRotation, OpenRotation, Alpha) → SetRelativeRotation(DoorMesh). For sliding: Lerp locations instead of rotations.

Timeline-driven door opening animation

Variables: StartRotation (Rotator), EndRotation (Rotator), bIsOpen (bool). Add Timeline node with a float track 'Alpha' (curve from 0.0 to 1.0, duration 1.0s). Overlap trigger → Branch(bIsOpen) → False: Timeline.Play → Update: RLerp(A=StartRotation,B=EndRotation,Alpha=Alpha) → SetActorRotation → Finished: SetVariable(bIsOpen=true). True: Timeline.Reverse → Update: same RLerp → Finished: SetVariable(bIsOpen=false). Key Timeline pins: Play exec input opens forward. Reverse plays backward. Update fires every frame. Finished fires when complete. Alpha track outputs 'Alpha' float.

Create a Blueprint for a door that opens when the player overlaps a trigger and closes when they leave

Gate — open/close/toggle flow gate

Macro. Enter only passes through when gate is open.

string

string

Create a Blueprint for a simple elevator that moves between two floors when a button is pressed

AND Boolean — logical AND of two booleans

OR Boolean — logical OR of two booleans

Gate — pass or block execution based on open/closed state

BooleanAND — logical AND

OR=BooleanOR, NOT=Not_PreBool, XOR=BooleanXOR