collisionShapeManager.h

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/*******************************************************************************
** Copyright (c) 2025 MAK Technologies, Inc.
** All rights reserved.
*******************************************************************************/

#pragma once
#include <vantageTerrainImplementation/vantageTerrainImplementationDefines.h>
#include <vantageTerrainImplementation/bvhTriangleMeshShape.h>
#include <unordered_map>

class btCollisionShape;
class btCollisionObject;

class DT_DLL_vantageTerrainImplementation DtCollisionShapeManager
{
public:
   DtCollisionShapeManager();
   virtual ~DtCollisionShapeManager();

   virtual void addShapeFromObject(btCollisionObject* objectPtr);
   virtual void removeObject(const btCollisionObject* objectPtr);

   virtual DtCollisionShapeId idForShape(const btCollisionShape* shapePtr);
   virtual DtBvhTriangleMeshShape::Ptr shapeForId(DtCollisionShapeId id);

protected:
   void pruneDeletedShapes();

protected:
   DtCollisionShapeId myNextId = 1;

   using DtShapeWeakPtr = std::weak_ptr<DtBvhTriangleMeshShape>;
   std::unordered_map<DtCollisionShapeId, DtShapeWeakPtr> myTrackedShapes;
};