AActor::HasAuthority

function Engine Blueprint Since 4.0

#include "GameFramework/Actor.h"

Access: public Specifiers: const

Description

Returns true if this actor is running on the authoritative (server) instance. Equivalent to checking `GetLocalRole() == ROLE_Authority`. Essential for gating server-only logic in multiplayer games.

Signature

bool HasAuthority() const

Return Type

bool

Caveats & Gotchas

• In a listen server game, the server host also acts as a client — HasAuthority() still returns true on the server.
• In single-player, HasAuthority() always returns true.
• Do not confuse with `IsLocallyControlled()` which checks if the local machine controls this actor.

Example

Server-only logic C++

void AMyActor::HandleDamage(float Damage)
{
    if (!HasAuthority()) return; // Only process damage on the server

    Health -= Damage;
    if (Health <= 0.f)
    {
        Destroy();
    }
}

Version History

Introduced in: 4.0

Version	Status	Notes
5.6	stable	—

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