1 files changed, 0 insertions, 105 deletions
diff --git a/thirdparty/bullet/BulletSoftBody/btDeformableGravityForce.h b/thirdparty/bullet/BulletSoftBody/btDeformableGravityForce.h
deleted file mode 100644
index d91867f457..0000000000
--- a/thirdparty/bullet/BulletSoftBody/btDeformableGravityForce.h
+++ /dev/null
@@ -1,105 +0,0 @@
-/*
- Written by Xuchen Han <xuchenhan2015@u.northwestern.edu>
- 
- Bullet Continuous Collision Detection and Physics Library
- Copyright (c) 2019 Google Inc. http://bulletphysics.org
- 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.
- */
-
-#ifndef BT_DEFORMABLE_GRAVITY_FORCE_H
-#define BT_DEFORMABLE_GRAVITY_FORCE_H
-
-#include "btDeformableLagrangianForce.h"
-
-class btDeformableGravityForce : public btDeformableLagrangianForce
-{
-public:
-	typedef btAlignedObjectArray<btVector3> TVStack;
-	btVector3 m_gravity;
-
-	btDeformableGravityForce(const btVector3& g) : m_gravity(g)
-	{
-	}
-
-	virtual void addScaledForces(btScalar scale, TVStack& force)
-	{
-		addScaledGravityForce(scale, force);
-	}
-
-	virtual void addScaledExplicitForce(btScalar scale, TVStack& force)
-	{
-		addScaledGravityForce(scale, force);
-	}
-
-	virtual void addScaledDampingForce(btScalar scale, TVStack& force)
-	{
-	}
-
-	virtual void addScaledElasticForceDifferential(btScalar scale, const TVStack& dx, TVStack& df)
-	{
-	}
-
-	virtual void addScaledDampingForceDifferential(btScalar scale, const TVStack& dv, TVStack& df)
-	{
-	}
-
-	virtual void buildDampingForceDifferentialDiagonal(btScalar scale, TVStack& diagA) {}
-
-	virtual void addScaledGravityForce(btScalar scale, TVStack& force)
-	{
-		int numNodes = getNumNodes();
-		btAssert(numNodes <= force.size());
-		for (int i = 0; i < m_softBodies.size(); ++i)
-		{
-			btSoftBody* psb = m_softBodies[i];
-			if (!psb->isActive())
-			{
-				continue;
-			}
-			for (int j = 0; j < psb->m_nodes.size(); ++j)
-			{
-				btSoftBody::Node& n = psb->m_nodes[j];
-				size_t id = n.index;
-				btScalar mass = (n.m_im == 0) ? 0 : 1. / n.m_im;
-				btVector3 scaled_force = scale * m_gravity * mass * m_softBodies[i]->m_gravityFactor;
-				force[id] += scaled_force;
-			}
-		}
-	}
-
-	virtual btDeformableLagrangianForceType getForceType()
-	{
-		return BT_GRAVITY_FORCE;
-	}
-
-	// the gravitational potential energy
-	virtual double totalEnergy(btScalar dt)
-	{
-		double e = 0;
-		for (int i = 0; i < m_softBodies.size(); ++i)
-		{
-			btSoftBody* psb = m_softBodies[i];
-			if (!psb->isActive())
-			{
-				continue;
-			}
-			for (int j = 0; j < psb->m_nodes.size(); ++j)
-			{
-				const btSoftBody::Node& node = psb->m_nodes[j];
-				if (node.m_im > 0)
-				{
-					e -= m_gravity.dot(node.m_q) / node.m_im;
-				}
-			}
-		}
-		return e;
-	}
-};
-#endif /* BT_DEFORMABLE_GRAVITY_FORCE_H */