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diff --git a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btSolverConstraint.h b/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btSolverConstraint.h
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index 5515e6b311..0000000000
--- a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btSolverConstraint.h
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@@ -1,80 +0,0 @@
-/*
-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.
-*/
-
-#ifndef BT_SOLVER_CONSTRAINT_H
-#define BT_SOLVER_CONSTRAINT_H
-
-class btRigidBody;
-#include "LinearMath/btVector3.h"
-#include "LinearMath/btMatrix3x3.h"
-#include "btJacobianEntry.h"
-#include "LinearMath/btAlignedObjectArray.h"
-
-//#define NO_FRICTION_TANGENTIALS 1
-#include "btSolverBody.h"
-
-
-///1D constraint along a normal axis between bodyA and bodyB. It can be combined to solve contact and friction constraints.
-ATTRIBUTE_ALIGNED16 (struct) btSolverConstraint
-{
- BT_DECLARE_ALIGNED_ALLOCATOR();
-
- btVector3 m_relpos1CrossNormal;
- btVector3 m_contactNormal1;
-
- btVector3 m_relpos2CrossNormal;
- btVector3 m_contactNormal2; //usually m_contactNormal2 == -m_contactNormal1, but not always
-
- btVector3 m_angularComponentA;
- btVector3 m_angularComponentB;
-
- mutable btSimdScalar m_appliedPushImpulse;
- mutable btSimdScalar m_appliedImpulse;
-
- btScalar m_friction;
- btScalar m_jacDiagABInv;
- btScalar m_rhs;
- btScalar m_cfm;
-
- btScalar m_lowerLimit;
- btScalar m_upperLimit;
- btScalar m_rhsPenetration;
- union
- {
- void* m_originalContactPoint;
- btScalar m_unusedPadding4;
- int m_numRowsForNonContactConstraint;
- };
-
- int m_overrideNumSolverIterations;
- int m_frictionIndex;
- int m_solverBodyIdA;
- int m_solverBodyIdB;
-
-
- enum btSolverConstraintType
- {
- BT_SOLVER_CONTACT_1D = 0,
- BT_SOLVER_FRICTION_1D
- };
-};
-
-typedef btAlignedObjectArray<btSolverConstraint> btConstraintArray;
-
-
-#endif //BT_SOLVER_CONSTRAINT_H
-
-
-