diff options
Diffstat (limited to 'extern/bullet2/src/BulletDynamics/Featherstone/btMultiBodyLinkCollider.h')
-rw-r--r-- | extern/bullet2/src/BulletDynamics/Featherstone/btMultiBodyLinkCollider.h | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/extern/bullet2/src/BulletDynamics/Featherstone/btMultiBodyLinkCollider.h b/extern/bullet2/src/BulletDynamics/Featherstone/btMultiBodyLinkCollider.h new file mode 100644 index 00000000000..27f12514a6d --- /dev/null +++ b/extern/bullet2/src/BulletDynamics/Featherstone/btMultiBodyLinkCollider.h @@ -0,0 +1,92 @@ +/* +Bullet Continuous Collision Detection and Physics Library +Copyright (c) 2013 Erwin Coumans http://bulletphysics.org + +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_FEATHERSTONE_LINK_COLLIDER_H +#define BT_FEATHERSTONE_LINK_COLLIDER_H + +#include "BulletCollision/CollisionDispatch/btCollisionObject.h" + +#include "btMultiBody.h" + +class btMultiBodyLinkCollider : public btCollisionObject +{ +//protected: +public: + + btMultiBody* m_multiBody; + int m_link; + + + btMultiBodyLinkCollider (btMultiBody* multiBody,int link) + :m_multiBody(multiBody), + m_link(link) + { + m_checkCollideWith = true; + //we need to remove the 'CF_STATIC_OBJECT' flag, otherwise links/base doesn't merge islands + //this means that some constraints might point to bodies that are not in the islands, causing crashes + //if (link>=0 || (multiBody && !multiBody->hasFixedBase())) + { + m_collisionFlags &= (~btCollisionObject::CF_STATIC_OBJECT); + } + // else + //{ + // m_collisionFlags |= (btCollisionObject::CF_STATIC_OBJECT); + //} + + m_internalType = CO_FEATHERSTONE_LINK; + } + static btMultiBodyLinkCollider* upcast(btCollisionObject* colObj) + { + if (colObj->getInternalType()&btCollisionObject::CO_FEATHERSTONE_LINK) + return (btMultiBodyLinkCollider*)colObj; + return 0; + } + static const btMultiBodyLinkCollider* upcast(const btCollisionObject* colObj) + { + if (colObj->getInternalType()&btCollisionObject::CO_FEATHERSTONE_LINK) + return (btMultiBodyLinkCollider*)colObj; + return 0; + } + + virtual bool checkCollideWithOverride(const btCollisionObject* co) const + { + const btMultiBodyLinkCollider* other = btMultiBodyLinkCollider::upcast(co); + if (!other) + return true; + if (other->m_multiBody != this->m_multiBody) + return true; + if (!m_multiBody->hasSelfCollision()) + return false; + + //check if 'link' has collision disabled + if (m_link>=0) + { + const btMultibodyLink& link = m_multiBody->getLink(this->m_link); + if ((link.m_flags&BT_MULTIBODYLINKFLAGS_DISABLE_PARENT_COLLISION) && link.parent == other->m_link) + return false; + } + + if (other->m_link>=0) + { + const btMultibodyLink& otherLink = other->m_multiBody->getLink(other->m_link); + if ((otherLink.m_flags& BT_MULTIBODYLINKFLAGS_DISABLE_PARENT_COLLISION) && otherLink.parent == this->m_link) + return false; + } + return true; + } +}; + +#endif //BT_FEATHERSTONE_LINK_COLLIDER_H + |