diff options
Diffstat (limited to 'Source/3rdParty/Box2D/Dynamics/Contacts/b2Contact.cpp')
| -rw-r--r-- | Source/3rdParty/Box2D/Dynamics/Contacts/b2Contact.cpp | 247 |
1 files changed, 0 insertions, 247 deletions
diff --git a/Source/3rdParty/Box2D/Dynamics/Contacts/b2Contact.cpp b/Source/3rdParty/Box2D/Dynamics/Contacts/b2Contact.cpp deleted file mode 100644 index 41b0f78..0000000 --- a/Source/3rdParty/Box2D/Dynamics/Contacts/b2Contact.cpp +++ /dev/null @@ -1,247 +0,0 @@ -/* -* Copyright (c) 2006-2009 Erin Catto http://www.box2d.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. -*/ - -#include "Box2D/Dynamics/Contacts/b2Contact.h" -#include "Box2D/Dynamics/Contacts/b2CircleContact.h" -#include "Box2D/Dynamics/Contacts/b2PolygonAndCircleContact.h" -#include "Box2D/Dynamics/Contacts/b2PolygonContact.h" -#include "Box2D/Dynamics/Contacts/b2EdgeAndCircleContact.h" -#include "Box2D/Dynamics/Contacts/b2EdgeAndPolygonContact.h" -#include "Box2D/Dynamics/Contacts/b2ChainAndCircleContact.h" -#include "Box2D/Dynamics/Contacts/b2ChainAndPolygonContact.h" -#include "Box2D/Dynamics/Contacts/b2ContactSolver.h" - -#include "Box2D/Collision/b2Collision.h" -#include "Box2D/Collision/b2TimeOfImpact.h" -#include "Box2D/Collision/Shapes/b2Shape.h" -#include "Box2D/Common/b2BlockAllocator.h" -#include "Box2D/Dynamics/b2Body.h" -#include "Box2D/Dynamics/b2Fixture.h" -#include "Box2D/Dynamics/b2World.h" - -b2ContactRegister b2Contact::s_registers[b2Shape::e_typeCount][b2Shape::e_typeCount]; -bool b2Contact::s_initialized = false; - -void b2Contact::InitializeRegisters() -{ - AddType(b2CircleContact::Create, b2CircleContact::Destroy, b2Shape::e_circle, b2Shape::e_circle); - AddType(b2PolygonAndCircleContact::Create, b2PolygonAndCircleContact::Destroy, b2Shape::e_polygon, b2Shape::e_circle); - AddType(b2PolygonContact::Create, b2PolygonContact::Destroy, b2Shape::e_polygon, b2Shape::e_polygon); - AddType(b2EdgeAndCircleContact::Create, b2EdgeAndCircleContact::Destroy, b2Shape::e_edge, b2Shape::e_circle); - AddType(b2EdgeAndPolygonContact::Create, b2EdgeAndPolygonContact::Destroy, b2Shape::e_edge, b2Shape::e_polygon); - AddType(b2ChainAndCircleContact::Create, b2ChainAndCircleContact::Destroy, b2Shape::e_chain, b2Shape::e_circle); - AddType(b2ChainAndPolygonContact::Create, b2ChainAndPolygonContact::Destroy, b2Shape::e_chain, b2Shape::e_polygon); -} - -void b2Contact::AddType(b2ContactCreateFcn* createFcn, b2ContactDestroyFcn* destoryFcn, - b2Shape::Type type1, b2Shape::Type type2) -{ - b2Assert(0 <= type1 && type1 < b2Shape::e_typeCount); - b2Assert(0 <= type2 && type2 < b2Shape::e_typeCount); - - s_registers[type1][type2].createFcn = createFcn; - s_registers[type1][type2].destroyFcn = destoryFcn; - s_registers[type1][type2].primary = true; - - if (type1 != type2) - { - s_registers[type2][type1].createFcn = createFcn; - s_registers[type2][type1].destroyFcn = destoryFcn; - s_registers[type2][type1].primary = false; - } -} - -b2Contact* b2Contact::Create(b2Fixture* fixtureA, int32 indexA, b2Fixture* fixtureB, int32 indexB, b2BlockAllocator* allocator) -{ - if (s_initialized == false) - { - InitializeRegisters(); - s_initialized = true; - } - - b2Shape::Type type1 = fixtureA->GetType(); - b2Shape::Type type2 = fixtureB->GetType(); - - b2Assert(0 <= type1 && type1 < b2Shape::e_typeCount); - b2Assert(0 <= type2 && type2 < b2Shape::e_typeCount); - - b2ContactCreateFcn* createFcn = s_registers[type1][type2].createFcn; - if (createFcn) - { - if (s_registers[type1][type2].primary) - { - return createFcn(fixtureA, indexA, fixtureB, indexB, allocator); - } - else - { - return createFcn(fixtureB, indexB, fixtureA, indexA, allocator); - } - } - else - { - return nullptr; - } -} - -void b2Contact::Destroy(b2Contact* contact, b2BlockAllocator* allocator) -{ - b2Assert(s_initialized == true); - - b2Fixture* fixtureA = contact->m_fixtureA; - b2Fixture* fixtureB = contact->m_fixtureB; - - if (contact->m_manifold.pointCount > 0 && - fixtureA->IsSensor() == false && - fixtureB->IsSensor() == false) - { - fixtureA->GetBody()->SetAwake(true); - fixtureB->GetBody()->SetAwake(true); - } - - b2Shape::Type typeA = fixtureA->GetType(); - b2Shape::Type typeB = fixtureB->GetType(); - - b2Assert(0 <= typeA && typeB < b2Shape::e_typeCount); - b2Assert(0 <= typeA && typeB < b2Shape::e_typeCount); - - b2ContactDestroyFcn* destroyFcn = s_registers[typeA][typeB].destroyFcn; - destroyFcn(contact, allocator); -} - -b2Contact::b2Contact(b2Fixture* fA, int32 indexA, b2Fixture* fB, int32 indexB) -{ - m_flags = e_enabledFlag; - - m_fixtureA = fA; - m_fixtureB = fB; - - m_indexA = indexA; - m_indexB = indexB; - - m_manifold.pointCount = 0; - - m_prev = nullptr; - m_next = nullptr; - - m_nodeA.contact = nullptr; - m_nodeA.prev = nullptr; - m_nodeA.next = nullptr; - m_nodeA.other = nullptr; - - m_nodeB.contact = nullptr; - m_nodeB.prev = nullptr; - m_nodeB.next = nullptr; - m_nodeB.other = nullptr; - - m_toiCount = 0; - - m_friction = b2MixFriction(m_fixtureA->m_friction, m_fixtureB->m_friction); - m_restitution = b2MixRestitution(m_fixtureA->m_restitution, m_fixtureB->m_restitution); - - m_tangentSpeed = 0.0f; -} - -// Update the contact manifold and touching status. -// Note: do not assume the fixture AABBs are overlapping or are valid. -void b2Contact::Update(b2ContactListener* listener) -{ - b2Manifold oldManifold = m_manifold; - - // Re-enable this contact. - m_flags |= e_enabledFlag; - - bool touching = false; - bool wasTouching = (m_flags & e_touchingFlag) == e_touchingFlag; - - bool sensorA = m_fixtureA->IsSensor(); - bool sensorB = m_fixtureB->IsSensor(); - bool sensor = sensorA || sensorB; - - b2Body* bodyA = m_fixtureA->GetBody(); - b2Body* bodyB = m_fixtureB->GetBody(); - const b2Transform& xfA = bodyA->GetTransform(); - const b2Transform& xfB = bodyB->GetTransform(); - - // Is this contact a sensor? - if (sensor) - { - const b2Shape* shapeA = m_fixtureA->GetShape(); - const b2Shape* shapeB = m_fixtureB->GetShape(); - touching = b2TestOverlap(shapeA, m_indexA, shapeB, m_indexB, xfA, xfB); - - // Sensors don't generate manifolds. - m_manifold.pointCount = 0; - } - else - { - Evaluate(&m_manifold, xfA, xfB); - touching = m_manifold.pointCount > 0; - - // Match old contact ids to new contact ids and copy the - // stored impulses to warm start the solver. - for (int32 i = 0; i < m_manifold.pointCount; ++i) - { - b2ManifoldPoint* mp2 = m_manifold.points + i; - mp2->normalImpulse = 0.0f; - mp2->tangentImpulse = 0.0f; - b2ContactID id2 = mp2->id; - - for (int32 j = 0; j < oldManifold.pointCount; ++j) - { - b2ManifoldPoint* mp1 = oldManifold.points + j; - - if (mp1->id.key == id2.key) - { - mp2->normalImpulse = mp1->normalImpulse; - mp2->tangentImpulse = mp1->tangentImpulse; - break; - } - } - } - - if (touching != wasTouching) - { - bodyA->SetAwake(true); - bodyB->SetAwake(true); - } - } - - if (touching) - { - m_flags |= e_touchingFlag; - } - else - { - m_flags &= ~e_touchingFlag; - } - - if (wasTouching == false && touching == true && listener) - { - listener->BeginContact(this); - } - - if (wasTouching == true && touching == false && listener) - { - listener->EndContact(this); - } - - if (sensor == false && touching && listener) - { - listener->PreSolve(this, &oldManifold); - } -} |