/**************************************************************************** Copyright (c) 2013 Chukong Technologies Inc. http://www.cocos2d-x.org Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ****************************************************************************/ #include "CCPhysicsContact.h" #if CC_USE_PHYSICS #include "chipmunk.h" #include "physics/CCPhysicsBody.h" #include "chipmunk/CCPhysicsContactInfo_chipmunk.h" #include "chipmunk/CCPhysicsHelper_chipmunk.h" #include "base/CCEventCustom.h" NS_CC_BEGIN const char* PHYSICSCONTACT_EVENT_NAME = "PhysicsContactEvent"; PhysicsContact::PhysicsContact() : EventCustom(PHYSICSCONTACT_EVENT_NAME) , _world(nullptr) , _shapeA(nullptr) , _shapeB(nullptr) , _eventCode(EventCode::NONE) , _info(nullptr) , _notificationEnable(true) , _result(true) , _data(nullptr) , _contactInfo(nullptr) , _contactData(nullptr) , _preContactData(nullptr) { } PhysicsContact::~PhysicsContact() { CC_SAFE_DELETE(_info); CC_SAFE_DELETE(_contactData); CC_SAFE_DELETE(_preContactData); } PhysicsContact* PhysicsContact::construct(PhysicsShape* a, PhysicsShape* b) { PhysicsContact * contact = new PhysicsContact(); if(contact && contact->init(a, b)) { return contact; } CC_SAFE_DELETE(contact); return nullptr; } bool PhysicsContact::init(PhysicsShape* a, PhysicsShape* b) { do { CC_BREAK_IF(a == nullptr || b == nullptr); CC_BREAK_IF(!(_info = new PhysicsContactInfo(this))); _shapeA = a; _shapeB = b; return true; } while(false); return false; } void PhysicsContact::generateContactData() { if (_contactInfo == nullptr) { return; } cpArbiter* arb = static_cast<cpArbiter*>(_contactInfo); CC_SAFE_DELETE(_preContactData); _preContactData = _contactData; _contactData = new PhysicsContactData(); _contactData->count = cpArbiterGetCount(arb); for (int i=0; i<_contactData->count && i<PhysicsContactData::POINT_MAX; ++i) { _contactData->points[i] = PhysicsHelper::cpv2point(cpArbiterGetPoint(arb, i)); } _contactData->normal = _contactData->count > 0 ? PhysicsHelper::cpv2point(cpArbiterGetNormal(arb, 0)) : Vec2::ZERO; } // PhysicsContactPreSolve implementation PhysicsContactPreSolve::PhysicsContactPreSolve(void* contactInfo) : _contactInfo(contactInfo) { } PhysicsContactPreSolve::~PhysicsContactPreSolve() { } float PhysicsContactPreSolve::getRestitution() const { return static_cast<cpArbiter*>(_contactInfo)->e; } float PhysicsContactPreSolve::getFriction() const { return static_cast<cpArbiter*>(_contactInfo)->u; } Vec2 PhysicsContactPreSolve::getSurfaceVelocity() const { return PhysicsHelper::cpv2point(static_cast<cpArbiter*>(_contactInfo)->surface_vr); } void PhysicsContactPreSolve::setRestitution(float restitution) { static_cast<cpArbiter*>(_contactInfo)->e = restitution; } void PhysicsContactPreSolve::setFriction(float friction) { static_cast<cpArbiter*>(_contactInfo)->u = friction; } void PhysicsContactPreSolve::setSurfaceVelocity(const Vect& velocity) { static_cast<cpArbiter*>(_contactInfo)->surface_vr = PhysicsHelper::point2cpv(velocity); } void PhysicsContactPreSolve::ignore() { cpArbiterIgnore(static_cast<cpArbiter*>(_contactInfo)); } // PhysicsContactPostSolve implementation PhysicsContactPostSolve::PhysicsContactPostSolve(void* contactInfo) : _contactInfo(contactInfo) { } PhysicsContactPostSolve::~PhysicsContactPostSolve() { } float PhysicsContactPostSolve::getRestitution() const { return static_cast<cpArbiter*>(_contactInfo)->e; } float PhysicsContactPostSolve::getFriction() const { return static_cast<cpArbiter*>(_contactInfo)->u; } Vec2 PhysicsContactPostSolve::getSurfaceVelocity() const { return PhysicsHelper::cpv2point(static_cast<cpArbiter*>(_contactInfo)->surface_vr); } EventListenerPhysicsContact::EventListenerPhysicsContact() : onContactBegin(nullptr) , onContactPreSolve(nullptr) , onContactPostSolve(nullptr) , onContactSeperate(nullptr) { } bool EventListenerPhysicsContact::init() { auto func = [this](EventCustom* event) -> void { onEvent(event); }; return EventListenerCustom::init(PHYSICSCONTACT_EVENT_NAME, func); } void EventListenerPhysicsContact::onEvent(EventCustom* event) { PhysicsContact* contact = dynamic_cast<PhysicsContact*>(event); if (contact == nullptr) { return; } switch (contact->getEventCode()) { case PhysicsContact::EventCode::BEGIN: { bool ret = true; if (onContactBegin != nullptr && hitTest(contact->getShapeA(), contact->getShapeB())) { contact->generateContactData(); ret = onContactBegin(*contact); } contact->setResult(ret); break; } case PhysicsContact::EventCode::PRESOLVE: { bool ret = true; if (onContactPreSolve != nullptr && hitTest(contact->getShapeA(), contact->getShapeB())) { PhysicsContactPreSolve solve(contact->_contactInfo); contact->generateContactData(); ret = onContactPreSolve(*contact, solve); } contact->setResult(ret); break; } case PhysicsContact::EventCode::POSTSOLVE: { if (onContactPostSolve != nullptr && hitTest(contact->getShapeA(), contact->getShapeB())) { PhysicsContactPostSolve solve(contact->_contactInfo); onContactPostSolve(*contact, solve); } break; } case PhysicsContact::EventCode::SEPERATE: { if (onContactSeperate != nullptr && hitTest(contact->getShapeA(), contact->getShapeB())) { onContactSeperate(*contact); } break; } default: break; } } EventListenerPhysicsContact::~EventListenerPhysicsContact() { } EventListenerPhysicsContact* EventListenerPhysicsContact::create() { EventListenerPhysicsContact* obj = new EventListenerPhysicsContact(); if (obj != nullptr && obj->init()) { obj->autorelease(); return obj; } CC_SAFE_DELETE(obj); return nullptr; } bool EventListenerPhysicsContact::hitTest(PhysicsShape* shapeA, PhysicsShape* shapeB) { CC_UNUSED_PARAM(shapeA); CC_UNUSED_PARAM(shapeB); return true; } bool EventListenerPhysicsContact::checkAvailable() { if (onContactBegin == nullptr && onContactPreSolve == nullptr && onContactPostSolve == nullptr && onContactSeperate == nullptr) { CCASSERT(false, "Invalid PhysicsContactListener."); return false; } return true; } EventListenerPhysicsContact* EventListenerPhysicsContact::clone() { EventListenerPhysicsContact* obj = EventListenerPhysicsContact::create(); if (obj != nullptr) { obj->onContactBegin = onContactBegin; obj->onContactPreSolve = onContactPreSolve; obj->onContactPostSolve = onContactPostSolve; obj->onContactSeperate = onContactSeperate; return obj; } CC_SAFE_DELETE(obj); return nullptr; } EventListenerPhysicsContactWithBodies* EventListenerPhysicsContactWithBodies::create(PhysicsBody* bodyA, PhysicsBody* bodyB) { EventListenerPhysicsContactWithBodies* obj = new EventListenerPhysicsContactWithBodies(); if (obj != nullptr && obj->init()) { obj->_a = bodyA; obj->_b = bodyB; obj->autorelease(); return obj; } CC_SAFE_DELETE(obj); return nullptr; } EventListenerPhysicsContactWithBodies::EventListenerPhysicsContactWithBodies() : _a(nullptr) , _b(nullptr) { } EventListenerPhysicsContactWithBodies::~EventListenerPhysicsContactWithBodies() { } bool EventListenerPhysicsContactWithBodies::hitTest(PhysicsShape* shapeA, PhysicsShape* shapeB) { if ((shapeA->getBody() == _a && shapeB->getBody() == _b) || (shapeA->getBody() == _b && shapeB->getBody() == _a)) { return true; } return false; } EventListenerPhysicsContactWithBodies* EventListenerPhysicsContactWithBodies::clone() { EventListenerPhysicsContactWithBodies* obj = EventListenerPhysicsContactWithBodies::create(_a, _b); if (obj != nullptr) { obj->onContactBegin = onContactBegin; obj->onContactPreSolve = onContactPreSolve; obj->onContactPostSolve = onContactPostSolve; obj->onContactSeperate = onContactSeperate; return obj; } CC_SAFE_DELETE(obj); return nullptr; } EventListenerPhysicsContactWithShapes::EventListenerPhysicsContactWithShapes() : _a(nullptr) , _b(nullptr) { } EventListenerPhysicsContactWithShapes::~EventListenerPhysicsContactWithShapes() { } EventListenerPhysicsContactWithShapes* EventListenerPhysicsContactWithShapes::create(PhysicsShape* shapeA, PhysicsShape* shapeB) { EventListenerPhysicsContactWithShapes* obj = new EventListenerPhysicsContactWithShapes(); if (obj != nullptr && obj->init()) { obj->_a = shapeA; obj->_b = shapeB; obj->autorelease(); return obj; } CC_SAFE_DELETE(obj); return nullptr; } bool EventListenerPhysicsContactWithShapes::hitTest(PhysicsShape* shapeA, PhysicsShape* shapeB) { if ((shapeA == _a && shapeB == _b) || (shapeA == _b && shapeB == _a)) { return true; } return false; } EventListenerPhysicsContactWithShapes* EventListenerPhysicsContactWithShapes::clone() { EventListenerPhysicsContactWithShapes* obj = EventListenerPhysicsContactWithShapes::create(_a, _b); if (obj != nullptr) { obj->onContactBegin = onContactBegin; obj->onContactPreSolve = onContactPreSolve; obj->onContactPostSolve = onContactPostSolve; obj->onContactSeperate = onContactSeperate; return obj; } CC_SAFE_DELETE(obj); return nullptr; } EventListenerPhysicsContactWithGroup::EventListenerPhysicsContactWithGroup() : _group(CP_NO_GROUP) { } EventListenerPhysicsContactWithGroup::~EventListenerPhysicsContactWithGroup() { } EventListenerPhysicsContactWithGroup* EventListenerPhysicsContactWithGroup::create(int group) { EventListenerPhysicsContactWithGroup* obj = new EventListenerPhysicsContactWithGroup(); if (obj != nullptr && obj->init()) { obj->_group = group; obj->autorelease(); return obj; } CC_SAFE_DELETE(obj); return nullptr; } bool EventListenerPhysicsContactWithGroup::hitTest(PhysicsShape* shapeA, PhysicsShape* shapeB) { if (shapeA->getGroup() == _group || shapeB->getGroup() == _group) { return true; } return false; } EventListenerPhysicsContactWithGroup* EventListenerPhysicsContactWithGroup::clone() { EventListenerPhysicsContactWithGroup* obj = EventListenerPhysicsContactWithGroup::create(_group); if (obj != nullptr) { obj->onContactBegin = onContactBegin; obj->onContactPreSolve = onContactPreSolve; obj->onContactPostSolve = onContactPostSolve; obj->onContactSeperate = onContactSeperate; return obj; } CC_SAFE_DELETE(obj); return nullptr; } NS_CC_END #endif // CC_USE_PHYSICS