AActor::AddTickPrerequisiteActor

function Engine Blueprint Since 4.0

#include "GameFramework/Actor.h"

Access: public Specifiers: virtualUFUNCTIONBlueprintCallable

Description

Forces this actor's tick to run after the specified actor's tick has completed. Use this to establish data-dependency ordering between actors within the same tick group.

Caveats & Gotchas

• This only affects the actor's own primary tick function — components owned by this actor are not automatically ordered. Call AddTickPrerequisiteActor/Component on each component separately if needed.
• Prerequisites only impose ordering within the same tick group. If the prerequisite actor is in a later tick group (e.g., PostPhysics) and this actor is in PrePhysics, the prerequisite is ignored and no ordering is enforced.
• Adding circular prerequisites (A depends on B, B depends on A) will cause a deadlock in the tick system and stall the frame.

Signature

virtual void AddTickPrerequisiteActor(AActor* PrerequisiteActor)

Parameters

Name	Type	Description	Default
PrerequisiteActor	AActor*	The actor whose tick must complete before this actor ticks.	—

Return Type

void

Example

Ensure turret ticks after its base platform C++

void ATurret::BeginPlay()
{
    Super::BeginPlay();
    if (BasePlatform)
    {
        AddTickPrerequisiteActor(BasePlatform);
    }
}

Version History

Introduced in: 4.0

Version	Status	Notes
5.6	stable	—

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