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authorRĂ©mi Verschelde <rverschelde@gmail.com>2018-01-13 14:43:30 +0100
committerGitHub <noreply@github.com>2018-01-13 14:43:30 +0100
commita3ee252993e8200c856be3fe664937f9461ee268 (patch)
treeaf68e434545e20c538f896e28b73f2db7d626edd /thirdparty/bullet/BulletCollision/NarrowPhaseCollision/btManifoldPoint.h
parentc01575b3125ce1828f0cacb3f9f00286136f373c (diff)
parente12c89e8c9896b2e5cdd70dbd2d2acb449ff4b94 (diff)
Merge pull request #15664 from akien-mga/thirdparty
Bugfix updates to various thirdparty libraries
Diffstat (limited to 'thirdparty/bullet/BulletCollision/NarrowPhaseCollision/btManifoldPoint.h')
-rw-r--r--thirdparty/bullet/BulletCollision/NarrowPhaseCollision/btManifoldPoint.h180
1 files changed, 180 insertions, 0 deletions
diff --git a/thirdparty/bullet/BulletCollision/NarrowPhaseCollision/btManifoldPoint.h b/thirdparty/bullet/BulletCollision/NarrowPhaseCollision/btManifoldPoint.h
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+++ b/thirdparty/bullet/BulletCollision/NarrowPhaseCollision/btManifoldPoint.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_MANIFOLD_CONTACT_POINT_H
+#define BT_MANIFOLD_CONTACT_POINT_H
+
+#include "LinearMath/btVector3.h"
+#include "LinearMath/btTransformUtil.h"
+
+#ifdef PFX_USE_FREE_VECTORMATH
+ #include "physics_effects/base_level/solver/pfx_constraint_row.h"
+typedef sce::PhysicsEffects::PfxConstraintRow btConstraintRow;
+#else
+ // Don't change following order of parameters
+ ATTRIBUTE_ALIGNED16(struct) btConstraintRow {
+ btScalar m_normal[3];
+ btScalar m_rhs;
+ btScalar m_jacDiagInv;
+ btScalar m_lowerLimit;
+ btScalar m_upperLimit;
+ btScalar m_accumImpulse;
+ };
+ typedef btConstraintRow PfxConstraintRow;
+#endif //PFX_USE_FREE_VECTORMATH
+
+enum btContactPointFlags
+{
+ BT_CONTACT_FLAG_LATERAL_FRICTION_INITIALIZED=1,
+ BT_CONTACT_FLAG_HAS_CONTACT_CFM=2,
+ BT_CONTACT_FLAG_HAS_CONTACT_ERP=4,
+ BT_CONTACT_FLAG_CONTACT_STIFFNESS_DAMPING = 8,
+ BT_CONTACT_FLAG_FRICTION_ANCHOR = 16,
+};
+
+/// ManifoldContactPoint collects and maintains persistent contactpoints.
+/// used to improve stability and performance of rigidbody dynamics response.
+class btManifoldPoint
+ {
+ public:
+ btManifoldPoint()
+ :m_userPersistentData(0),
+ m_contactPointFlags(0),
+ m_appliedImpulse(0.f),
+ m_appliedImpulseLateral1(0.f),
+ m_appliedImpulseLateral2(0.f),
+ m_contactMotion1(0.f),
+ m_contactMotion2(0.f),
+ m_contactCFM(0.f),
+ m_contactERP(0.f),
+ m_frictionCFM(0.f),
+ m_lifeTime(0)
+ {
+ }
+
+ btManifoldPoint( const btVector3 &pointA, const btVector3 &pointB,
+ const btVector3 &normal,
+ btScalar distance ) :
+ m_localPointA( pointA ),
+ m_localPointB( pointB ),
+ m_normalWorldOnB( normal ),
+ m_distance1( distance ),
+ m_combinedFriction(btScalar(0.)),
+ m_combinedRollingFriction(btScalar(0.)),
+ m_combinedSpinningFriction(btScalar(0.)),
+ m_combinedRestitution(btScalar(0.)),
+ m_userPersistentData(0),
+ m_contactPointFlags(0),
+ m_appliedImpulse(0.f),
+ m_appliedImpulseLateral1(0.f),
+ m_appliedImpulseLateral2(0.f),
+ m_contactMotion1(0.f),
+ m_contactMotion2(0.f),
+ m_contactCFM(0.f),
+ m_contactERP(0.f),
+ m_frictionCFM(0.f),
+ m_lifeTime(0)
+ {
+
+ }
+
+
+
+ btVector3 m_localPointA;
+ btVector3 m_localPointB;
+ btVector3 m_positionWorldOnB;
+ ///m_positionWorldOnA is redundant information, see getPositionWorldOnA(), but for clarity
+ btVector3 m_positionWorldOnA;
+ btVector3 m_normalWorldOnB;
+
+ btScalar m_distance1;
+ btScalar m_combinedFriction;
+ btScalar m_combinedRollingFriction;//torsional friction orthogonal to contact normal, useful to make spheres stop rolling forever
+ btScalar m_combinedSpinningFriction;//torsional friction around contact normal, useful for grasping objects
+ btScalar m_combinedRestitution;
+
+ //BP mod, store contact triangles.
+ int m_partId0;
+ int m_partId1;
+ int m_index0;
+ int m_index1;
+
+ mutable void* m_userPersistentData;
+ //bool m_lateralFrictionInitialized;
+ int m_contactPointFlags;
+
+ btScalar m_appliedImpulse;
+ btScalar m_appliedImpulseLateral1;
+ btScalar m_appliedImpulseLateral2;
+ btScalar m_contactMotion1;
+ btScalar m_contactMotion2;
+
+ union
+ {
+ btScalar m_contactCFM;
+ btScalar m_combinedContactStiffness1;
+ };
+
+ union
+ {
+ btScalar m_contactERP;
+ btScalar m_combinedContactDamping1;
+ };
+
+ btScalar m_frictionCFM;
+
+ int m_lifeTime;//lifetime of the contactpoint in frames
+
+ btVector3 m_lateralFrictionDir1;
+ btVector3 m_lateralFrictionDir2;
+
+
+
+
+ btScalar getDistance() const
+ {
+ return m_distance1;
+ }
+ int getLifeTime() const
+ {
+ return m_lifeTime;
+ }
+
+ const btVector3& getPositionWorldOnA() const {
+ return m_positionWorldOnA;
+// return m_positionWorldOnB + m_normalWorldOnB * m_distance1;
+ }
+
+ const btVector3& getPositionWorldOnB() const
+ {
+ return m_positionWorldOnB;
+ }
+
+ void setDistance(btScalar dist)
+ {
+ m_distance1 = dist;
+ }
+
+ ///this returns the most recent applied impulse, to satisfy contact constraints by the constraint solver
+ btScalar getAppliedImpulse() const
+ {
+ return m_appliedImpulse;
+ }
+
+
+
+ };
+
+#endif //BT_MANIFOLD_CONTACT_POINT_H