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btDiscreteCollisionDetectorInterface.h - Hosted on DriveHQ Cloud IT Platform
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Ruta de la carpeta: \\game3dprogramming\materials\DarkPuzzle\libs\bullet_src\BulletCollision\NarrowPhaseCollision\btDiscreteCollisionDetectorInterface.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 DISCRETE_COLLISION_DETECTOR1_INTERFACE_H #define DISCRETE_COLLISION_DETECTOR1_INTERFACE_H #include "LinearMath/btTransform.h" #include "LinearMath/btVector3.h" class btStackAlloc; /// This interface is made to be used by an iterative approach to do TimeOfImpact calculations /// This interface allows to query for closest points and penetration depth between two (convex) objects /// the closest point is on the second object (B), and the normal points from the surface on B towards A. /// distance is between closest points on B and closest point on A. So you can calculate closest point on A /// by taking closestPointInA = closestPointInB + m_distance * m_normalOnSurfaceB struct btDiscreteCollisionDetectorInterface { struct Result { virtual ~Result(){} ///setShapeIdentifiers provides experimental support for per-triangle material / custom material combiner virtual void setShapeIdentifiers(int partId0,int index0, int partId1,int index1)=0; virtual void addContactPoint(const btVector3& normalOnBInWorld,const btVector3& pointInWorld,btScalar depth)=0; }; struct ClosestPointInput { ClosestPointInput() :m_maximumDistanceSquared(btScalar(1e30)), m_stackAlloc(0) { } btTransform m_transformA; btTransform m_transformB; btScalar m_maximumDistanceSquared; btStackAlloc* m_stackAlloc; }; virtual ~btDiscreteCollisionDetectorInterface() {}; // // give either closest points (distance > 0) or penetration (distance) // the normal always points from B towards A // virtual void getClosestPoints(const ClosestPointInput& input,Result& output,class btIDebugDraw* debugDraw) = 0; }; struct btStorageResult : public btDiscreteCollisionDetectorInterface::Result { btVector3 m_normalOnSurfaceB; btVector3 m_closestPointInB; btScalar m_distance; //negative means penetration ! btStorageResult() : m_distance(btScalar(1e30)) { } virtual ~btStorageResult() {}; virtual void addContactPoint(const btVector3& normalOnBInWorld,const btVector3& pointInWorld,btScalar depth) { if (depth < m_distance) { m_normalOnSurfaceB = normalOnBInWorld; m_closestPointInB = pointInWorld; m_distance = depth; } } }; #endif //DISCRETE_COLLISION_DETECTOR_INTERFACE1_H
btDiscreteCollisionDetectorInterface.h
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