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路径: \\game3dprogramming\materials\DarkPuzzle\libs\bullet_sdk\src\BulletDynamics\ConstraintSolver\btSolverConstraint.h

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/*
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"

//#define NO_FRICTION_TANGENTIALS 1

///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_contactNormal;

	btVector3	m_relpos2CrossNormal;
	btVector3	m_angularComponentA;

	btVector3	m_angularComponentB;
	mutable btScalar	m_appliedVelocityImpulse;
	mutable btScalar	m_appliedImpulse;
	int			m_solverBodyIdA;
	int			m_solverBodyIdB;
	
	btScalar	m_friction;
	btScalar	m_restitution;
	btScalar	m_jacDiagABInv;
	btScalar	m_penetration;
	

	
	int			m_constraintType;
	int			m_frictionIndex;
	void*		m_originalContactPoint;
	int			m_unusedPadding[1];


	enum		btSolverConstraintType
	{
		BT_SOLVER_CONTACT_1D = 0,
		BT_SOLVER_FRICTION_1D
	};
};






#endif //BT_SOLVER_CONSTRAINT_H

btSolverConstraint.h

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