120 lines
3.4 KiB
C++
120 lines
3.4 KiB
C++
// Copyright (c) 2012-2020 Wojciech Figat. All rights reserved.
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#pragma once
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#include "Types.h"
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#include "Collisions.h"
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#include "Engine/Core/Types/Pair.h"
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#include "Colliders/Collider.h"
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#include <ThirdParty/PhysX/PxSimulationEventCallback.h>
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/// <summary>
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/// Default implementation of the PxSimulationEventCallback to send physics events to the other engine services.
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/// </summary>
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/// <seealso cref="PxSimulationEventCallback" />
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class SimulationEventCallback : public PxSimulationEventCallback
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{
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public:
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typedef Pair<PhysicsColliderActor*, PhysicsColliderActor*> CollidersPair;
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typedef Dictionary<CollidersPair, Collision> CollisionsPool;
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/// <summary>
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/// The collected collisions.
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/// </summary>
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CollisionsPool Collisions;
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/// <summary>
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/// The previous step collisions.
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/// </summary>
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CollisionsPool PrevCollisions;
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/// <summary>
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/// The new collisions (for enter event).
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/// </summary>
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Array<CollidersPair> NewCollisions;
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/// <summary>
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/// The old collisions (for exit event).
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/// </summary>
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Array<CollidersPair> RemovedCollisions;
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/// <summary>
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/// The new trigger pairs (for enter event).
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/// </summary>
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Array<CollidersPair> NewTriggerPairs;
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/// <summary>
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/// The removed trigger pairs (for exit event).
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/// </summary>
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Array<CollidersPair> LostTriggerPairs;
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/// <summary>
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/// The broken joints collection.
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/// </summary>
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Array<Joint*> BrokenJoints;
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public:
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/// <summary>
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/// Clears the data.
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/// </summary>
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void Clear()
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{
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PrevCollisions = Collisions;
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Collisions.Clear();
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NewCollisions.Clear();
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RemovedCollisions.Clear();
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NewTriggerPairs.Clear();
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LostTriggerPairs.Clear();
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BrokenJoints.Clear();
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}
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/// <summary>
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/// Generates the new/old/removed collisions and a valid trigger pairs.
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/// </summary>
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void CollectResults();
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/// <summary>
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/// Sends the collision events to the managed objects.
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/// </summary>
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void SendCollisionEvents();
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/// <summary>
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/// Sends the trigger events to the managed objects.
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/// </summary>
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void SendTriggerEvents();
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/// <summary>
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/// Sends the joint events to the managed objects.
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/// </summary>
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void SendJointEvents();
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/// <summary>
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/// Called when collider gets removed so all cached events should be removed for this object.
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/// Prevents sending events and using deleted objects.
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/// </summary>
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/// <param name="collider">The collider.</param>
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void OnColliderRemoved(PhysicsColliderActor* collider);
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/// <summary>
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/// Called when joint gets removed so all cached events should be removed for this object.
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/// Prevents sending events and using deleted objects.
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/// </summary>
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/// <param name="joint">The joint.</param>
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void OnJointRemoved(Joint* joint);
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public:
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// [PxSimulationEventCallback]
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void onConstraintBreak(PxConstraintInfo* constraints, PxU32 count) override;
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void onWake(PxActor** actors, PxU32 count) override;
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void onSleep(PxActor** actors, PxU32 count) override;
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void onContact(const PxContactPairHeader& pairHeader, const PxContactPair* pairs, PxU32 nbPairs) override;
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void onTrigger(PxTriggerPair* pairs, PxU32 count) override;
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void onAdvance(const PxRigidBody* const* bodyBuffer, const PxTransform* poseBuffer, const PxU32 count) override;
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};
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