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Diffstat (limited to 'extern/bullet2/src/LinearMath/btList.h')
-rw-r--r-- | extern/bullet2/src/LinearMath/btList.h | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/extern/bullet2/src/LinearMath/btList.h b/extern/bullet2/src/LinearMath/btList.h new file mode 100644 index 00000000000..c87b47faf2b --- /dev/null +++ b/extern/bullet2/src/LinearMath/btList.h @@ -0,0 +1,73 @@ +/* +Copyright (c) 2003-2006 Gino van den Bergen / 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 GEN_LIST_H +#define GEN_LIST_H + +class btGEN_Link { +public: + btGEN_Link() : m_next(0), m_prev(0) {} + btGEN_Link(btGEN_Link *next, btGEN_Link *prev) : m_next(next), m_prev(prev) {} + + btGEN_Link *getNext() const { return m_next; } + btGEN_Link *getPrev() const { return m_prev; } + + bool isHead() const { return m_prev == 0; } + bool isTail() const { return m_next == 0; } + + void insertBefore(btGEN_Link *link) { + m_next = link; + m_prev = link->m_prev; + m_next->m_prev = this; + m_prev->m_next = this; + } + + void insertAfter(btGEN_Link *link) { + m_next = link->m_next; + m_prev = link; + m_next->m_prev = this; + m_prev->m_next = this; + } + + void remove() { + m_next->m_prev = m_prev; + m_prev->m_next = m_next; + } + +private: + btGEN_Link *m_next; + btGEN_Link *m_prev; +}; + +class btGEN_List { +public: + btGEN_List() : m_head(&m_tail, 0), m_tail(0, &m_head) {} + + btGEN_Link *getHead() const { return m_head.getNext(); } + btGEN_Link *getTail() const { return m_tail.getPrev(); } + + void addHead(btGEN_Link *link) { link->insertAfter(&m_head); } + void addTail(btGEN_Link *link) { link->insertBefore(&m_tail); } + +private: + btGEN_Link m_head; + btGEN_Link m_tail; +}; + +#endif + + + |