UAnimInstance::WasAnimNotifyTriggeredInStateMachine

function Engine Blueprint Since 4.11

#include "Animation/AnimInstance.h"

Access: public Specifiers: UFUNCTIONBlueprintPure

Description

Returns true if a notify of the given class was triggered anywhere in the specified state machine during the last frame. Broader than WasAnimNotifyTriggeredInSourceState — does not restrict the check to a single source state.

Caveats & Gotchas

• Searches all active states in the machine, including blended states during transitions. A notify in a state that has 0.01 blend weight will still return true.
• MachineIndex must match the compiled index of the state machine; it is not the display name. These indices can shift if you reorder machines in the AnimBP, breaking the check silently.

Signature

UFUNCTION(BlueprintPure, Category="Animation")
bool WasAnimNotifyTriggeredInStateMachine(int32 MachineIndex, TSubclassOf<UAnimNotify> AnimNotifyType) const;

Parameters

Name	Type	Description	Default
MachineIndex	int32	Index of the state machine to query.	—
AnimNotifyType	TSubclassOf<UAnimNotify>	Class of the notify to check for.	—

Return Type

bool

Example

Detect a footstep notify anywhere in the locomotion machine C++

// MachineIndex 0 is the locomotion state machine in this AnimBP
bool bFootstep = WasAnimNotifyTriggeredInStateMachine(0, UAnimNotify_Footstep::StaticClass());
if (bFootstep)
{
    SpawnFootstepDecal();
}

Version History

Introduced in: 4.11

Version	Status	Notes
5.6	stable	—

Feedback

Was this helpful?