89 lines
3.9 KiB
C++
89 lines
3.9 KiB
C++
/*
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Bullet Continuous Collision Detection and Physics Library
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Copyright (c) 2003-2009 Erwin Coumans http://bulletphysics.com
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This software is provided 'as-is', without any express or implied warranty.
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In no event will the authors be held liable for any damages arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it freely,
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subject to the following restrictions:
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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.
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2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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Experimental Buoyancy fluid demo written by John McCutchan
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*/
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#include "btHfFluidRigidCollisionConfiguration.h"
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#include "btHfFluidRigidCollisionAlgorithm.h"
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#include "btHfFluidBuoyantShapeCollisionAlgorithm.h"
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#include "LinearMath/btPoolAllocator.h"
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btHfFluidRigidCollisionConfiguration::btHfFluidRigidCollisionConfiguration(const btDefaultCollisionConstructionInfo& constructionInfo)
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:btDefaultCollisionConfiguration(constructionInfo)
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{
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void* mem;
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mem = btAlignedAlloc(sizeof(btHfFluidRigidCollisionAlgorithm::CreateFunc),16);
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m_hfFluidRigidConvexCreateFunc = new(mem) btHfFluidRigidCollisionAlgorithm::CreateFunc;
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mem = btAlignedAlloc(sizeof(btHfFluidRigidCollisionAlgorithm::CreateFunc),16);
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m_swappedHfFluidRigidConvexCreateFunc = new(mem) btHfFluidRigidCollisionAlgorithm::CreateFunc;
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m_swappedHfFluidRigidConvexCreateFunc->m_swapped = true;
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mem = btAlignedAlloc(sizeof(btHfFluidBuoyantShapeCollisionAlgorithm::CreateFunc),16);
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m_hfFluidBuoyantShapeCollisionCreateFunc = new(mem) btHfFluidBuoyantShapeCollisionAlgorithm::CreateFunc(m_simplexSolver, m_pdSolver);
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if (m_ownsCollisionAlgorithmPool && m_collisionAlgorithmPool)
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{
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int curElemSize = m_collisionAlgorithmPool->getElementSize();
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///calculate maximum element size, big enough to fit any collision algorithm in the memory pool
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int maxSize0 = sizeof(btHfFluidRigidCollisionAlgorithm);
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int maxSize1 = 0;
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int maxSize2 = 0;
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int collisionAlgorithmMaxElementSize = btMax(maxSize0,maxSize1);
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collisionAlgorithmMaxElementSize = btMax(collisionAlgorithmMaxElementSize,maxSize2);
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if (collisionAlgorithmMaxElementSize > curElemSize)
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{
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m_collisionAlgorithmPool->~btPoolAllocator();
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btAlignedFree(m_collisionAlgorithmPool);
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void* mem = btAlignedAlloc(sizeof(btPoolAllocator),16);
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m_collisionAlgorithmPool = new(mem) btPoolAllocator(collisionAlgorithmMaxElementSize,constructionInfo.m_defaultMaxCollisionAlgorithmPoolSize);
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}
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}
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}
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btHfFluidRigidCollisionConfiguration::~btHfFluidRigidCollisionConfiguration()
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{
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m_hfFluidRigidConvexCreateFunc->~btCollisionAlgorithmCreateFunc();
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m_swappedHfFluidRigidConvexCreateFunc->~btCollisionAlgorithmCreateFunc();
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btAlignedFree(m_hfFluidRigidConvexCreateFunc);
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btAlignedFree(m_swappedHfFluidRigidConvexCreateFunc);
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}
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btCollisionAlgorithmCreateFunc* btHfFluidRigidCollisionConfiguration::getCollisionAlgorithmCreateFunc(int proxyType0,int proxyType1)
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{
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if ((proxyType0 == HFFLUID_SHAPE_PROXYTYPE) && (proxyType1 == HFFLUID_BUOYANT_CONVEX_SHAPE_PROXYTYPE))
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{
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return m_hfFluidRigidConvexCreateFunc;
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}
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if ((proxyType0 == HFFLUID_BUOYANT_CONVEX_SHAPE_PROXYTYPE) && (proxyType1 == HFFLUID_SHAPE_PROXYTYPE))
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{
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return m_swappedHfFluidRigidConvexCreateFunc;
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}
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if ((proxyType0 == HFFLUID_BUOYANT_CONVEX_SHAPE_PROXYTYPE) && (proxyType1 == HFFLUID_BUOYANT_CONVEX_SHAPE_PROXYTYPE))
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{
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return m_hfFluidBuoyantShapeCollisionCreateFunc;
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}
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///fallback to the regular rigid collision shape
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return btDefaultCollisionConfiguration::getCollisionAlgorithmCreateFunc(proxyType0,proxyType1);
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}
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