PlayMontage — play animation montage

ACharacter::PlayAnimMontage. Returns duration. Alternative: Montage_Play on AnimInstance.

PlayAnimMontage call has no actual montage assigned

Why: The Montage pin on PlayAnimMontage is empty (None) or points at a deleted '{m}' asset. Fix: Click the PlayAnimMontage node. In Details, set the Montage to Play pin to a valid AnimMontage asset. If you don't have one yet, create one in Content Browser → right-click → Animation → Animation Montage, target the same skeleton your character uses.

StopAnimMontage — stop playing animation montage

Animation Montage

A sequence-of-sequences with named sections — perfect for attack combos, dialogue cuts, etc. Triggers via PlayAnimMontage.

Play animation montage on character with callback when finished

Pattern: EventBeginPlay or custom event → GetMesh → PlayMontage(MontageToPlay=AM_Attack, Rate=1.0) → Bind to OnMontageEnded delegate on AnimInstance for completion callback. Simpler approach: use Delay(Duration=MontageLength) after PlayMontage as rough callback. Key: PlayMontage is called on SkeletalMeshComponent (GetMesh()). Inputs: 'InSkeletalMeshComponent' and 'MontageToPlay'. Returns montage length as ReturnValue.

PlayAnimation (widget) — play a Widget Animation

PlayAnimation on widget — play UMG widget animation

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.

Animation Sequence

A single recorded animation clip. Plays at a fixed rate. Looped via the state machine.

GetAnimInstance — get the AnimInstance from a SkeletalMeshComponent

Pure node. Cast result to your ABP_Character class to access anim variables.