move the SoftBody work into its own library, BulletSoftBody (work in progress)

src/BulletSoftBody/btSoftRigidDynamicsWorld.h

@@ -0,0 +1,65 @@
+/*
+Bullet Continuous Collision Detection and Physics Library
+Copyright (c) 2003-2006 Erwin Coumans  http://continuousphysics.com/Bullet/
+
+This software is provided 'as-is', without any express or implied warranty.
+In no event will the authors be held liable for any damages arising from the use of this software.
+Permission is granted to anyone to use this software for any purpose, 
+including commercial applications, and to alter it and redistribute it freely, 
+subject to the following restrictions:
+
+1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
+2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
+3. This notice may not be removed or altered from any source distribution.
+*/
+
+#include "BulletDynamics/Dynamics/btDiscreteDynamicsWorld.h"
+
+#ifndef BT_SOFT_RIGID_DYNAMICS_WORLD_H
+#define BT_SOFT_RIGID_DYNAMICS_WORLD_H
+
+class btSoftBody;
+typedef	btAlignedObjectArray<btSoftBody*> btSoftBodyArray;
+
+class btSoftRigidDynamicsWorld : public btDiscreteDynamicsWorld
+{
+	
+	btSoftBodyArray	m_softBodies;
+		
+protected:
+	
+	virtual void	predictUnconstraintMotion(btScalar timeStep);
+	
+	virtual void	internalSingleStepSimulation( btScalar timeStep);
+
+	void	updateSoftBodies();
+
+	void	solveSoftBodiesConstraints();
+
+	virtual void	debugDrawWorld();
+
+public:
+	
+	btSoftRigidDynamicsWorld(btDispatcher* dispatcher,btBroadphaseInterface* pairCache,btConstraintSolver* constraintSolver,btCollisionConfiguration* collisionConfiguration);
+
+	virtual ~btSoftRigidDynamicsWorld();
+		
+			
+	void	addSoftBody(btSoftBody* body);
+
+	void	removeSoftBody(btSoftBody* body);
+
+			
+	btSoftBodyArray& getSoftBodyArray()
+	{
+		return m_softBodies;
+	}
+
+	const btSoftBodyArray& getSoftBodyArray() const
+	{
+		return m_softBodies;
+	}
+		
+};
+
+#endif //BT_SOFT_RIGID_DYNAMICS_WORLD_H