102 lines
5.1 KiB
C++
102 lines
5.1 KiB
C++
/********************************************************************************
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* ReactPhysics3D physics library, http://www.reactphysics3d.com *
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* Copyright (c) 2010-2018 Daniel Chappuis *
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*********************************************************************************
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* *
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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 *
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* use of this software. *
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* *
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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 *
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* freely, subject to the following restrictions: *
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* *
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* 1. The origin of this software must not be misrepresented; you must not claim *
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* that you wrote the original software. If you use this software in a *
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* product, an acknowledgment in the product documentation would be *
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* appreciated but is not required. *
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* *
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* 2. Altered source versions must be plainly marked as such, and must not be *
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* misrepresented as being the original software. *
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* *
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* 3. This notice may not be removed or altered from any source distribution. *
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* *
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********************************************************************************/
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// Libraries
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#include "SphereVsSphereNarrowPhaseInfoBatch.h"
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#include "collision/shapes/SphereShape.h"
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using namespace reactphysics3d;
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// Constructor
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SphereVsSphereNarrowPhaseInfoBatch::SphereVsSphereNarrowPhaseInfoBatch(MemoryAllocator& allocator, OverlappingPairs& overlappingPairs)
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: NarrowPhaseInfoBatch(allocator, overlappingPairs), sphere1Radiuses(allocator), sphere2Radiuses(allocator) {
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}
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// Add shapes to be tested during narrow-phase collision detection into the batch
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void SphereVsSphereNarrowPhaseInfoBatch::addNarrowPhaseInfo(uint64 pairId, Entity proxyShape1, Entity proxyShape2, CollisionShape* shape1, CollisionShape* shape2,
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const Transform& shape1Transform, const Transform& shape2Transform) {
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assert(shape1->getType() == CollisionShapeType::SPHERE);
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assert(shape2->getType() == CollisionShapeType::SPHERE);
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const SphereShape* sphere1 = static_cast<const SphereShape*>(shape1);
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const SphereShape* sphere2 = static_cast<const SphereShape*>(shape2);
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sphere1Radiuses.add(sphere1->getRadius());
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sphere2Radiuses.add(sphere2->getRadius());
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proxyShapeEntities1.add(proxyShape1);
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proxyShapeEntities2.add(proxyShape2);
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shape1ToWorldTransforms.add(shape1Transform);
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shape2ToWorldTransforms.add(shape2Transform);
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overlappingPairIds.add(pairId);
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contactPoints.add(List<ContactPointInfo*>(mMemoryAllocator));
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isColliding.add(false);
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// Add a collision info for the two collision shapes into the overlapping pair (if not present yet)
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LastFrameCollisionInfo* lastFrameInfo = mOverlappingPairs.addLastFrameInfoIfNecessary(pairId, shape1->getId(), shape2->getId());
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lastFrameCollisionInfos.add(lastFrameInfo);
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}
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// Initialize the containers using cached capacity
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void SphereVsSphereNarrowPhaseInfoBatch::reserveMemory() {
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overlappingPairIds.reserve(mCachedCapacity);
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proxyShapeEntities1.reserve(mCachedCapacity);
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proxyShapeEntities2.reserve(mCachedCapacity);
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shape1ToWorldTransforms.reserve(mCachedCapacity);
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shape2ToWorldTransforms.reserve(mCachedCapacity);
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lastFrameCollisionInfos.reserve(mCachedCapacity);
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isColliding.reserve(mCachedCapacity);
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contactPoints.reserve(mCachedCapacity);
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sphere1Radiuses.reserve(mCachedCapacity);
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sphere2Radiuses.reserve(mCachedCapacity);
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}
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// Clear all the objects in the batch
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void SphereVsSphereNarrowPhaseInfoBatch::clear() {
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// Note that we clear the following containers and we release their allocated memory. Therefore,
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// if the memory allocator is a single frame allocator, the memory is deallocated and will be
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// allocated in the next frame at a possibly different location in memory (remember that the
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// location of the allocated memory of a single frame allocator might change between two frames)
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mCachedCapacity = overlappingPairIds.size();
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overlappingPairIds.clear(true);
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proxyShapeEntities1.clear(true);
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proxyShapeEntities2.clear(true);
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shape1ToWorldTransforms.clear(true);
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shape2ToWorldTransforms.clear(true);
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lastFrameCollisionInfos.clear(true);
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isColliding.clear(true);
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contactPoints.clear(true);
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sphere1Radiuses.clear(true);
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sphere2Radiuses.clear(true);
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}
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