bullet3/examples/FractureDemo/btFractureDynamicsWorld.h

#ifndef _BT_FRACTURE_DYNAMICS_WORLD_H
#define _BT_FRACTURE_DYNAMICS_WORLD_H

#include "BulletDynamics/Dynamics/btDiscreteDynamicsWorld.h"
#include "LinearMath/btAlignedObjectArray.h"

class btFractureBody;
class btCompoundShape;
class btTransform;

///The btFractureDynamicsWorld class enabled basic glue and fracture of objects.
///If/once this implementation is stablized/tested we might merge it into btDiscreteDynamicsWorld and remove the class.
class btFractureDynamicsWorld : public btDiscreteDynamicsWorld
{
	btAlignedObjectArray<btFractureBody*> m_fractureBodies;

	bool m_fracturingMode;

	btFractureBody* addNewBody(const btTransform& oldTransform, btScalar* masses, btCompoundShape* oldCompound);

	void breakDisconnectedParts(btFractureBody* fracObj);

public:
	btFractureDynamicsWorld(btDispatcher* dispatcher, btBroadphaseInterface* pairCache, btConstraintSolver* constraintSolver, btCollisionConfiguration* collisionConfiguration);

	virtual void addRigidBody(btRigidBody* body);

	virtual void removeRigidBody(btRigidBody* body);

	void solveConstraints(btContactSolverInfo& solverInfo);

	///either fracture or glue (!fracture)
	void setFractureMode(bool fracture)
	{
		m_fracturingMode = fracture;
	}

	bool getFractureMode() const { return m_fracturingMode; }

	///normally those callbacks are called internally by the 'solveConstraints'
	void glueCallback();

	///normally those callbacks are called internally by the 'solveConstraints'
	void fractureCallback();
};

#endif  //_BT_FRACTURE_DYNAMICS_WORLD_H