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o3de/Gems/Blast/Code/Source/Family/ActorTracker.h

41 lines
1.7 KiB
C++

/*
* Copyright (c) Contributors to the Open 3D Engine Project.
* For complete copyright and license terms please see the LICENSE at the root of this distribution.
*
* SPDX-License-Identifier: Apache-2.0 OR MIT
*
*/
#pragma once
#include <AzCore/Component/EntityId.h>
#include <AzCore/Math/Vector3.h>
#include <AzCore/std/containers/unordered_set.h>
#include <AzCore/std/containers/unordered_map.h>
#include <Blast/BlastActor.h>
namespace Blast
{
//! Class used for storing and retrieving blast actors. Convenient to be shared between different classes as a
//! dependency.
//! @note ActorTracker does not own or control lifecycle of BlastActors it tracks. TkFramework controls lifecycle of
//! TkActors and sends notification to BlastFamily when actors are created/destroyed which we follow up on by
//! creating/deleting corresponding BlastActors (and adding/removing them to/from ActorTracker). This guarantees
//! that stored BlastActors are always valid.
class ActorTracker
{
public:
void AddActor(BlastActor* actor);
void RemoveActor(BlastActor* actor);
[[nodiscard]] BlastActor* GetActorById(AZ::EntityId entityId);
[[nodiscard]] BlastActor* GetActorByBody(const AzPhysics::SimulatedBody* body);
[[nodiscard]] BlastActor* FindClosestActor(const AZ::Vector3& position);
[[nodiscard]] const AZStd::unordered_set<BlastActor*>& GetActors() const;
private:
AZStd::unordered_set<BlastActor*> m_actors;
AZStd::unordered_map<AZ::EntityId, BlastActor*> m_entityIdToActor;
AZStd::unordered_map<const AzPhysics::SimulatedBody*, BlastActor*> m_bodyToActor;
};
} // namespace Blast