UActorComponent::AddTickPrerequisiteActor

function Engine Blueprint Since 4.0

#include "Components/ActorComponent.h"

Access: public Specifiers: ENGINE_APIvirtualUFUNCTIONBlueprintCallable

Description

Adds a dependency so that this component's tick does not run until the specified actor has completed its tick for the frame.

• This adds the dependency on the actor's root component tick, not any particular component of that actor — if you need to depend on a specific component, use AddTickPrerequisiteComponent.
• Adding circular prerequisites (A depends on B, B depends on A) will cause a deadlock or undefined ordering — the engine does not detect this.
• Prerequisites only apply within the same tick group. If the prerequisite actor is in a later tick group, the dependency has no practical effect.

ENGINE_API virtual void AddTickPrerequisiteActor(AActor* PrerequisiteActor);

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

void

Ensure a follower component ticks after the target actor C++

void UFollowerComponent::SetTarget(AActor* Target)
{
	TargetActor = Target;
	if (Target)
	{
		AddTickPrerequisiteActor(Target);
	}
}

Introduced in: 4.0

Version	Status	Notes
5.6	stable	—

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