1 files changed, 0 insertions, 169 deletions
diff --git a/thirdparty/bullet/BulletDynamics/ConstraintSolver/btGeneric6DofSpringConstraint.cpp b/thirdparty/bullet/BulletDynamics/ConstraintSolver/btGeneric6DofSpringConstraint.cpp
deleted file mode 100644
index 8baf52bcd1..0000000000
--- a/thirdparty/bullet/BulletDynamics/ConstraintSolver/btGeneric6DofSpringConstraint.cpp
+++ /dev/null
@@ -1,169 +0,0 @@
-/*
-Bullet Continuous Collision Detection and Physics Library, http://bulletphysics.org
-Copyright (C) 2006, 2007 Sony Computer Entertainment Inc. 
-
-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 "btGeneric6DofSpringConstraint.h"
-#include "BulletDynamics/Dynamics/btRigidBody.h"
-#include "LinearMath/btTransformUtil.h"
-
-btGeneric6DofSpringConstraint::btGeneric6DofSpringConstraint(btRigidBody& rbA, btRigidBody& rbB, const btTransform& frameInA, const btTransform& frameInB, bool useLinearReferenceFrameA)
-	: btGeneric6DofConstraint(rbA, rbB, frameInA, frameInB, useLinearReferenceFrameA)
-{
-	init();
-}
-
-btGeneric6DofSpringConstraint::btGeneric6DofSpringConstraint(btRigidBody& rbB, const btTransform& frameInB, bool useLinearReferenceFrameB)
-	: btGeneric6DofConstraint(rbB, frameInB, useLinearReferenceFrameB)
-{
-	init();
-}
-
-void btGeneric6DofSpringConstraint::init()
-{
-	m_objectType = D6_SPRING_CONSTRAINT_TYPE;
-
-	for (int i = 0; i < 6; i++)
-	{
-		m_springEnabled[i] = false;
-		m_equilibriumPoint[i] = btScalar(0.f);
-		m_springStiffness[i] = btScalar(0.f);
-		m_springDamping[i] = btScalar(1.f);
-	}
-}
-
-void btGeneric6DofSpringConstraint::enableSpring(int index, bool onOff)
-{
-	btAssert((index >= 0) && (index < 6));
-	m_springEnabled[index] = onOff;
-	if (index < 3)
-	{
-		m_linearLimits.m_enableMotor[index] = onOff;
-	}
-	else
-	{
-		m_angularLimits[index - 3].m_enableMotor = onOff;
-	}
-}
-
-void btGeneric6DofSpringConstraint::setStiffness(int index, btScalar stiffness)
-{
-	btAssert((index >= 0) && (index < 6));
-	m_springStiffness[index] = stiffness;
-}
-
-void btGeneric6DofSpringConstraint::setDamping(int index, btScalar damping)
-{
-	btAssert((index >= 0) && (index < 6));
-	m_springDamping[index] = damping;
-}
-
-void btGeneric6DofSpringConstraint::setEquilibriumPoint()
-{
-	calculateTransforms();
-	int i;
-
-	for (i = 0; i < 3; i++)
-	{
-		m_equilibriumPoint[i] = m_calculatedLinearDiff[i];
-	}
-	for (i = 0; i < 3; i++)
-	{
-		m_equilibriumPoint[i + 3] = m_calculatedAxisAngleDiff[i];
-	}
-}
-
-void btGeneric6DofSpringConstraint::setEquilibriumPoint(int index)
-{
-	btAssert((index >= 0) && (index < 6));
-	calculateTransforms();
-	if (index < 3)
-	{
-		m_equilibriumPoint[index] = m_calculatedLinearDiff[index];
-	}
-	else
-	{
-		m_equilibriumPoint[index] = m_calculatedAxisAngleDiff[index - 3];
-	}
-}
-
-void btGeneric6DofSpringConstraint::setEquilibriumPoint(int index, btScalar val)
-{
-	btAssert((index >= 0) && (index < 6));
-	m_equilibriumPoint[index] = val;
-}
-
-void btGeneric6DofSpringConstraint::internalUpdateSprings(btConstraintInfo2* info)
-{
-	// it is assumed that calculateTransforms() have been called before this call
-	int i;
-	//btVector3 relVel = m_rbB.getLinearVelocity() - m_rbA.getLinearVelocity();
-	for (i = 0; i < 3; i++)
-	{
-		if (m_springEnabled[i])
-		{
-			// get current position of constraint
-			btScalar currPos = m_calculatedLinearDiff[i];
-			// calculate difference
-			btScalar delta = currPos - m_equilibriumPoint[i];
-			// spring force is (delta * m_stiffness) according to Hooke's Law
-			btScalar force = delta * m_springStiffness[i];
-			btScalar velFactor = info->fps * m_springDamping[i] / btScalar(info->m_numIterations);
-			m_linearLimits.m_targetVelocity[i] = velFactor * force;
-			m_linearLimits.m_maxMotorForce[i] = btFabs(force);
-		}
-	}
-	for (i = 0; i < 3; i++)
-	{
-		if (m_springEnabled[i + 3])
-		{
-			// get current position of constraint
-			btScalar currPos = m_calculatedAxisAngleDiff[i];
-			// calculate difference
-			btScalar delta = currPos - m_equilibriumPoint[i + 3];
-			// spring force is (-delta * m_stiffness) according to Hooke's Law
-			btScalar force = -delta * m_springStiffness[i + 3];
-			btScalar velFactor = info->fps * m_springDamping[i + 3] / btScalar(info->m_numIterations);
-			m_angularLimits[i].m_targetVelocity = velFactor * force;
-			m_angularLimits[i].m_maxMotorForce = btFabs(force);
-		}
-	}
-}
-
-void btGeneric6DofSpringConstraint::getInfo2(btConstraintInfo2* info)
-{
-	// this will be called by constraint solver at the constraint setup stage
-	// set current motor parameters
-	internalUpdateSprings(info);
-	// do the rest of job for constraint setup
-	btGeneric6DofConstraint::getInfo2(info);
-}
-
-void btGeneric6DofSpringConstraint::setAxis(const btVector3& axis1, const btVector3& axis2)
-{
-	btVector3 zAxis = axis1.normalized();
-	btVector3 yAxis = axis2.normalized();
-	btVector3 xAxis = yAxis.cross(zAxis);  // we want right coordinate system
-
-	btTransform frameInW;
-	frameInW.setIdentity();
-	frameInW.getBasis().setValue(xAxis[0], yAxis[0], zAxis[0],
-								 xAxis[1], yAxis[1], zAxis[1],
-								 xAxis[2], yAxis[2], zAxis[2]);
-
-	// now get constraint frame in local coordinate systems
-	m_frameInA = m_rbA.getCenterOfMassTransform().inverse() * frameInW;
-	m_frameInB = m_rbB.getCenterOfMassTransform().inverse() * frameInW;
-
-	calculateTransforms();
-}