/**************************************************************************** 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 "physics/CCPhysicsWorld.h" #if CC_USE_PHYSICS #include #include #include "chipmunk.h" #include "CCPhysicsBody.h" #include "CCPhysicsShape.h" #include "CCPhysicsContact.h" #include "CCPhysicsJoint.h" #include "CCPhysicsContact.h" #include "CCPhysicsHelper.h" #include "2d/CCDrawNode.h" #include "2d/CCScene.h" #include "base/CCDirector.h" #include "base/CCEventDispatcher.h" #include "base/CCEventCustom.h" NS_CC_BEGIN const float PHYSICS_INFINITY = INFINITY; extern const char* PHYSICSCONTACT_EVENT_NAME; extern std::unordered_map s_physicsShapeMap; const int PhysicsWorld::DEBUGDRAW_NONE = 0x00; const int PhysicsWorld::DEBUGDRAW_SHAPE = 0x01; const int PhysicsWorld::DEBUGDRAW_JOINT = 0x02; const int PhysicsWorld::DEBUGDRAW_CONTACT = 0x04; const int PhysicsWorld::DEBUGDRAW_ALL = DEBUGDRAW_SHAPE | DEBUGDRAW_JOINT | DEBUGDRAW_CONTACT; namespace { typedef struct RayCastCallbackInfo { PhysicsWorld* world; PhysicsRayCastCallbackFunc func; Vec2 p1; Vec2 p2; void* data; }RayCastCallbackInfo; typedef struct RectQueryCallbackInfo { PhysicsWorld* world; PhysicsQueryRectCallbackFunc func; void* data; }RectQueryCallbackInfo; typedef struct PointQueryCallbackInfo { PhysicsWorld* world; PhysicsQueryPointCallbackFunc func; void* data; }PointQueryCallbackInfo; } class PhysicsWorldCallback { public: static int collisionBeginCallbackFunc(cpArbiter *arb, struct cpSpace *space, PhysicsWorld *world); static int collisionPreSolveCallbackFunc(cpArbiter *arb, cpSpace *space, PhysicsWorld *world); static void collisionPostSolveCallbackFunc(cpArbiter *arb, cpSpace *space, PhysicsWorld *world); static void collisionSeparateCallbackFunc(cpArbiter *arb, cpSpace *space, PhysicsWorld *world); static void rayCastCallbackFunc(cpShape *shape, cpFloat t, cpVect n, RayCastCallbackInfo *info); static void queryRectCallbackFunc(cpShape *shape, RectQueryCallbackInfo *info); static void queryPointFunc(cpShape *shape, cpFloat distance, cpVect point, PointQueryCallbackInfo *info); static void getShapesAtPointFunc(cpShape *shape, cpFloat distance, cpVect point, Vector* arr); public: static bool continues; }; bool PhysicsWorldCallback::continues = true; int PhysicsWorldCallback::collisionBeginCallbackFunc(cpArbiter *arb, struct cpSpace *space, PhysicsWorld *world) { CP_ARBITER_GET_SHAPES(arb, a, b); auto ita = s_physicsShapeMap.find(a); auto itb = s_physicsShapeMap.find(b); CC_ASSERT(ita != s_physicsShapeMap.end() && itb != s_physicsShapeMap.end()); auto contact = PhysicsContact::construct(ita->second, itb->second); arb->data = contact; contact->_contactInfo = arb; return world->collisionBeginCallback(*contact); } int PhysicsWorldCallback::collisionPreSolveCallbackFunc(cpArbiter *arb, cpSpace *space, PhysicsWorld *world) { return world->collisionPreSolveCallback(*static_cast(arb->data)); } void PhysicsWorldCallback::collisionPostSolveCallbackFunc(cpArbiter *arb, cpSpace *space, PhysicsWorld *world) { world->collisionPostSolveCallback(*static_cast(arb->data)); } void PhysicsWorldCallback::collisionSeparateCallbackFunc(cpArbiter *arb, cpSpace *space, PhysicsWorld *world) { PhysicsContact* contact = static_cast(arb->data); world->collisionSeparateCallback(*contact); delete contact; } void PhysicsWorldCallback::rayCastCallbackFunc(cpShape *shape, cpFloat t, cpVect n, RayCastCallbackInfo *info) { if (!PhysicsWorldCallback::continues) { return; } auto it = s_physicsShapeMap.find(shape); CC_ASSERT(it != s_physicsShapeMap.end()); PhysicsRayCastInfo callbackInfo = { it->second, info->p1, info->p2, Vec2(info->p1.x+(info->p2.x-info->p1.x)*t, info->p1.y+(info->p2.y-info->p1.y)*t), Vec2(n.x, n.y), (float)t, }; PhysicsWorldCallback::continues = info->func(*info->world, callbackInfo, info->data); } void PhysicsWorldCallback::queryRectCallbackFunc(cpShape *shape, RectQueryCallbackInfo *info) { auto it = s_physicsShapeMap.find(shape); CC_ASSERT(it != s_physicsShapeMap.end()); if (!PhysicsWorldCallback::continues) { return; } PhysicsWorldCallback::continues = info->func(*info->world, *it->second, info->data); } void PhysicsWorldCallback::getShapesAtPointFunc(cpShape *shape, cpFloat distance, cpVect point, Vector* arr) { auto it = s_physicsShapeMap.find(shape); CC_ASSERT(it != s_physicsShapeMap.end()); arr->pushBack(it->second); } void PhysicsWorldCallback::queryPointFunc(cpShape *shape, cpFloat distance, cpVect point, PointQueryCallbackInfo *info) { auto it = s_physicsShapeMap.find(shape); CC_ASSERT(it != s_physicsShapeMap.end()); PhysicsWorldCallback::continues = info->func(*info->world, *it->second, info->data); } void PhysicsWorld::debugDraw() { if (_debugDraw == nullptr) { _debugDraw = new (std::nothrow) PhysicsDebugDraw(*this); } if (_debugDraw && !_bodies.empty()) { if (_debugDraw->begin()) { if (_debugDrawMask & DEBUGDRAW_SHAPE) { for (Ref* obj : _bodies) { PhysicsBody* body = dynamic_cast(obj); if (!body->isEnabled()) { continue; } for (auto& shape : body->getShapes()) { _debugDraw->drawShape(*dynamic_cast(shape)); } } } if (_debugDrawMask & DEBUGDRAW_JOINT) { for (auto joint : _joints) { _debugDraw->drawJoint(*joint); } } _debugDraw->end(); } } } int PhysicsWorld::collisionBeginCallback(PhysicsContact& contact) { bool ret = true; PhysicsShape* shapeA = contact.getShapeA(); PhysicsShape* shapeB = contact.getShapeB(); PhysicsBody* bodyA = shapeA->getBody(); PhysicsBody* bodyB = shapeB->getBody(); std::vector jointsA = bodyA->getJoints(); // check the joint is collision enable or not for (PhysicsJoint* joint : jointsA) { if (std::find(_joints.begin(), _joints.end(), joint) == _joints.end()) { continue; } if (!joint->isCollisionEnabled()) { PhysicsBody* body = joint->getBodyA() == bodyA ? joint->getBodyB() : joint->getBodyA(); if (body == bodyB) { contact.setNotificationEnable(false); return false; } } } // bitmask check if ((shapeA->getCategoryBitmask() & shapeB->getContactTestBitmask()) == 0 || (shapeA->getContactTestBitmask() & shapeB->getCategoryBitmask()) == 0) { contact.setNotificationEnable(false); } if (shapeA->getGroup() != 0 && shapeA->getGroup() == shapeB->getGroup()) { ret = shapeA->getGroup() > 0; } else { if ((shapeA->getCategoryBitmask() & shapeB->getCollisionBitmask()) == 0 || (shapeB->getCategoryBitmask() & shapeA->getCollisionBitmask()) == 0) { ret = false; } } if (contact.isNotificationEnabled()) { contact.setEventCode(PhysicsContact::EventCode::BEGIN); contact.setWorld(this); _scene->getEventDispatcher()->dispatchEvent(&contact); } return ret ? contact.resetResult() : false; } int PhysicsWorld::collisionPreSolveCallback(PhysicsContact& contact) { if (!contact.isNotificationEnabled()) { return true; } contact.setEventCode(PhysicsContact::EventCode::PRESOLVE); contact.setWorld(this); _scene->getEventDispatcher()->dispatchEvent(&contact); return contact.resetResult(); } void PhysicsWorld::collisionPostSolveCallback(PhysicsContact& contact) { if (!contact.isNotificationEnabled()) { return; } contact.setEventCode(PhysicsContact::EventCode::POSTSOLVE); contact.setWorld(this); _scene->getEventDispatcher()->dispatchEvent(&contact); } void PhysicsWorld::collisionSeparateCallback(PhysicsContact& contact) { if (!contact.isNotificationEnabled()) { return; } contact.setEventCode(PhysicsContact::EventCode::SEPARATE); contact.setWorld(this); _scene->getEventDispatcher()->dispatchEvent(&contact); } void PhysicsWorld::rayCast(PhysicsRayCastCallbackFunc func, const Vec2& point1, const Vec2& point2, void* data) { CCASSERT(func != nullptr, "func shouldn't be nullptr"); if (func != nullptr) { if (!_delayAddBodies.empty() || !_delayRemoveBodies.empty()) { _scene->updatePhysicsBodyTransform(_scene->getNodeToParentTransform(), 0, 1.0f, 1.0f); updateBodies(); } RayCastCallbackInfo info = { this, func, point1, point2, data }; PhysicsWorldCallback::continues = true; cpSpaceSegmentQuery(_cpSpace, PhysicsHelper::point2cpv(point1), PhysicsHelper::point2cpv(point2), CP_ALL_LAYERS, CP_NO_GROUP, (cpSpaceSegmentQueryFunc)PhysicsWorldCallback::rayCastCallbackFunc, &info); } } void PhysicsWorld::queryRect(PhysicsQueryRectCallbackFunc func, const Rect& rect, void* data) { CCASSERT(func != nullptr, "func shouldn't be nullptr"); if (func != nullptr) { if (!_delayAddBodies.empty() || !_delayRemoveBodies.empty()) { _scene->updatePhysicsBodyTransform(_scene->getNodeToParentTransform(), 0, 1.0f, 1.0f); updateBodies(); } RectQueryCallbackInfo info = {this, func, data}; PhysicsWorldCallback::continues = true; cpSpaceBBQuery(_cpSpace, PhysicsHelper::rect2cpbb(rect), CP_ALL_LAYERS, CP_NO_GROUP, (cpSpaceBBQueryFunc)PhysicsWorldCallback::queryRectCallbackFunc, &info); } } void PhysicsWorld::queryPoint(PhysicsQueryPointCallbackFunc func, const Vec2& point, void* data) { CCASSERT(func != nullptr, "func shouldn't be nullptr"); if (func != nullptr) { if (!_delayAddBodies.empty() || !_delayRemoveBodies.empty()) { _scene->updatePhysicsBodyTransform(_scene->getNodeToParentTransform(), 0, 1.0f, 1.0f); updateBodies(); } PointQueryCallbackInfo info = {this, func, data}; PhysicsWorldCallback::continues = true; cpSpaceNearestPointQuery(_cpSpace, PhysicsHelper::point2cpv(point), 0, CP_ALL_LAYERS, CP_NO_GROUP, (cpSpaceNearestPointQueryFunc)PhysicsWorldCallback::queryPointFunc, &info); } } Vector PhysicsWorld::getShapes(const Vec2& point) const { Vector arr; cpSpaceNearestPointQuery(_cpSpace, PhysicsHelper::point2cpv(point), 0, CP_ALL_LAYERS, CP_NO_GROUP, (cpSpaceNearestPointQueryFunc)PhysicsWorldCallback::getShapesAtPointFunc, &arr); return arr; } PhysicsShape* PhysicsWorld::getShape(const Vec2& point) const { cpShape* shape = cpSpaceNearestPointQueryNearest(_cpSpace, PhysicsHelper::point2cpv(point), 0, CP_ALL_LAYERS, CP_NO_GROUP, nullptr); return shape == nullptr ? nullptr : s_physicsShapeMap.find(shape)->second; } PhysicsWorld* PhysicsWorld::construct(Scene& scene) { PhysicsWorld * world = new (std::nothrow) PhysicsWorld(); if(world && world->init(scene)) { return world; } CC_SAFE_DELETE(world); return nullptr; } bool PhysicsWorld::init(Scene& scene) { do { _cpSpace = cpSpaceNew(); CC_BREAK_IF(_cpSpace == nullptr); _scene = &scene; cpSpaceSetGravity(_cpSpace, PhysicsHelper::point2cpv(_gravity)); cpSpaceSetDefaultCollisionHandler(_cpSpace, (cpCollisionBeginFunc)PhysicsWorldCallback::collisionBeginCallbackFunc, (cpCollisionPreSolveFunc)PhysicsWorldCallback::collisionPreSolveCallbackFunc, (cpCollisionPostSolveFunc)PhysicsWorldCallback::collisionPostSolveCallbackFunc, (cpCollisionSeparateFunc)PhysicsWorldCallback::collisionSeparateCallbackFunc, this); return true; } while (false); return false; } void PhysicsWorld::addBody(PhysicsBody* body) { CCASSERT(body != nullptr, "the body can not be nullptr"); if (body->getWorld() == this) { return; } if (body->getWorld() != nullptr) { body->removeFromWorld(); } addBodyOrDelay(body); _bodies.pushBack(body); body->_world = this; } void PhysicsWorld::doAddBody(PhysicsBody* body) { if (body->isEnabled()) { // add body to space if (body->isDynamic() && !cpSpaceContainsBody(_cpSpace, body->_cpBody)) { cpSpaceAddBody(_cpSpace, body->_cpBody); } // add shapes to space for (auto& shape : body->getShapes()) { addShape(dynamic_cast(shape)); } } } void PhysicsWorld::addBodyOrDelay(PhysicsBody* body) { auto removeBodyIter = _delayRemoveBodies.find(body); if (removeBodyIter != _delayRemoveBodies.end()) { _delayRemoveBodies.erase(removeBodyIter); return; } if (_delayAddBodies.find(body) == _delayAddBodies.end()) { _delayAddBodies.pushBack(body); } } void PhysicsWorld::updateBodies() { if (cpSpaceIsLocked(_cpSpace)) { return; } // issue #4944, contact callback will be invoked when add/remove body, _delayAddBodies maybe changed, so we need make a copy. auto addCopy = _delayAddBodies; _delayAddBodies.clear(); for (auto& body : addCopy) { doAddBody(body); } auto removeCopy = _delayRemoveBodies; _delayRemoveBodies.clear(); for (auto& body : removeCopy) { doRemoveBody(body); } } void PhysicsWorld::removeBody(int tag) { for (auto& body : _bodies) { if (body->getTag() == tag) { removeBody(body); return; } } } void PhysicsWorld::removeBody(PhysicsBody* body) { if (body->getWorld() != this) { CCLOG("Physics Warnning: this body doesn't belong to this world"); return; } // destory the body's joints auto removeCopy = body->_joints; for (auto joint : removeCopy) { removeJoint(joint, true); } body->_joints.clear(); removeBodyOrDelay(body); _bodies.eraseObject(body); body->_world = nullptr; } void PhysicsWorld::removeBodyOrDelay(PhysicsBody* body) { if (_delayAddBodies.getIndex(body) != CC_INVALID_INDEX) { _delayAddBodies.eraseObject(body); return; } if (cpSpaceIsLocked(_cpSpace)) { if (_delayRemoveBodies.getIndex(body) == CC_INVALID_INDEX) { _delayRemoveBodies.pushBack(body); } }else { doRemoveBody(body); } } void PhysicsWorld::removeJoint(PhysicsJoint* joint, bool destroy) { if (joint) { if (joint->getWorld() != this && destroy) { CCLOG("physics warnning: the joint is not in this world, it won't be destoried utill the body it conntect is destoried"); return; } joint->_destoryMark = destroy; if (cpSpaceIsLocked(_cpSpace)) { auto it = std::find(_delayAddJoints.begin(), _delayAddJoints.end(), joint); if (it != _delayAddJoints.end()) { _delayAddJoints.erase(it); return; } if (std::find(_delayRemoveJoints.rbegin(), _delayRemoveJoints.rend(), joint) == _delayRemoveJoints.rend()) { _delayRemoveJoints.push_back(joint); } } else { doRemoveJoint(joint); } } } void PhysicsWorld::updateJoints() { if (cpSpaceIsLocked(_cpSpace)) { return; } for (auto joint : _delayAddJoints) { joint->_world = this; if (joint->initJoint()) { _joints.push_back(joint); } else { delete joint; } } _delayAddJoints.clear(); for (auto joint : _delayRemoveJoints) { doRemoveJoint(joint); } _delayRemoveJoints.clear(); } void PhysicsWorld::removeShape(PhysicsShape* shape) { if (shape) { for (auto cps : shape->_cpShapes) { if (cpSpaceContainsShape(_cpSpace, cps)) { cpSpaceRemoveShape(_cpSpace, cps); } } } } void PhysicsWorld::addJoint(PhysicsJoint* joint) { if (joint) { if (joint->getWorld() && joint->getWorld() != this) { joint->removeFormWorld(); } auto it = std::find(_delayRemoveJoints.begin(), _delayRemoveJoints.end(), joint); if (it != _delayRemoveJoints.end()) { _delayRemoveJoints.erase(it); return; } if (std::find(_delayAddJoints.begin(), _delayAddJoints.end(), joint) == _delayAddJoints.end()) { _delayAddJoints.push_back(joint); } } } void PhysicsWorld::removeAllJoints(bool destroy) { auto removeCopy = _joints; for (auto joint : removeCopy) { removeJoint(joint, destroy); } } void PhysicsWorld::addShape(PhysicsShape* physicsShape) { if (physicsShape) { for (auto shape : physicsShape->_cpShapes) { cpSpaceAddShape(_cpSpace, shape); } } } void PhysicsWorld::doRemoveBody(PhysicsBody* body) { CCASSERT(body != nullptr, "the body can not be nullptr"); // remove shaps for (auto& shape : body->getShapes()) { removeShape(shape); } // remove body if (cpSpaceContainsBody(_cpSpace, body->_cpBody)) { cpSpaceRemoveBody(_cpSpace, body->_cpBody); } } void PhysicsWorld::doRemoveJoint(PhysicsJoint* joint) { for (auto constraint : joint->_cpConstraints) { cpSpaceRemoveConstraint(_cpSpace, constraint); } _joints.remove(joint); joint->_world = nullptr; if (joint->getBodyA()) { joint->getBodyA()->removeJoint(joint); } if (joint->getBodyB()) { joint->getBodyB()->removeJoint(joint); } if (joint->_destoryMark) { delete joint; } } void PhysicsWorld::removeAllBodies() { for (auto& child : _bodies) { removeBodyOrDelay(child); child->_world = nullptr; } _bodies.clear(); } void PhysicsWorld::setDebugDrawMask(int mask) { if (mask == DEBUGDRAW_NONE) { CC_SAFE_DELETE(_debugDraw); } _debugDrawMask = mask; } const Vector& PhysicsWorld::getAllBodies() const { return _bodies; } PhysicsBody* PhysicsWorld::getBody(int tag) const { for (auto& body : _bodies) { if (body->getTag() == tag) { return body; } } return nullptr; } void PhysicsWorld::setGravity(const Vect& gravity) { _gravity = gravity; cpSpaceSetGravity(_cpSpace, PhysicsHelper::point2cpv(gravity)); } void PhysicsWorld::setSubsteps(int steps) { if(steps > 0) { _substeps = steps; if (steps > 1) { _updateRate = 1; } } } void PhysicsWorld::step(float delta) { if (_autoStep) { CCLOG("Physics Warning: You need to close auto step( setAutoStep(false) ) first"); } else { update(delta, true); } } void PhysicsWorld::update(float delta, bool userCall/* = false*/) { if(_updateBodyTransform || !_delayAddBodies.empty()) { _scene->updatePhysicsBodyTransform(_scene->getNodeToParentTransform(), 0, 1.0f, 1.0f); updateBodies(); _updateBodyTransform = false; } else if (!_delayRemoveBodies.empty()) { updateBodies(); } if (!_delayAddJoints.empty() || !_delayRemoveJoints.empty()) { updateJoints(); } if (delta < FLT_EPSILON) { return; } if (userCall) { cpSpaceStep(_cpSpace, delta); for (auto& body : _bodies) { body->update(delta); } } else { _updateTime += delta; if (++_updateRateCount >= _updateRate) { const float dt = _updateTime * _speed / _substeps; for (int i = 0; i < _substeps; ++i) { cpSpaceStep(_cpSpace, dt); for (auto& body : _bodies) { body->update(dt); } } _updateRateCount = 0; _updateTime = 0.0f; } } if (_debugDrawMask != DEBUGDRAW_NONE) { debugDraw(); } } PhysicsWorld::PhysicsWorld() : _gravity(Vec2(0.0f, -98.0f)) , _speed(1.0f) , _updateRate(1) , _updateRateCount(0) , _updateTime(0.0f) , _substeps(1) , _cpSpace(nullptr) , _scene(nullptr) , _autoStep(true) , _debugDraw(nullptr) , _updateBodyTransform(false) , _debugDrawMask(DEBUGDRAW_NONE) { } PhysicsWorld::~PhysicsWorld() { removeAllJoints(true); removeAllBodies(); if (_cpSpace) { cpSpaceFree(_cpSpace); } CC_SAFE_DELETE(_debugDraw); } PhysicsDebugDraw::PhysicsDebugDraw(PhysicsWorld& world) : _drawNode(nullptr) , _world(world) { _drawNode = DrawNode::create(); _world.getScene().addChild(_drawNode); } PhysicsDebugDraw::~PhysicsDebugDraw() { _drawNode->removeFromParent(); _drawNode = nullptr; } bool PhysicsDebugDraw::begin() { _drawNode->clear(); return true; } void PhysicsDebugDraw::end() { } void PhysicsDebugDraw::drawShape(PhysicsShape& shape) { const Color4F fillColor(1.0f, 0.0f, 0.0f, 0.3f); const Color4F outlineColor(1.0f, 0.0f, 0.0f, 1.0f); for (auto it = shape._cpShapes.begin(); it != shape._cpShapes.end(); ++it) { cpShape *subShape = *it; switch ((*it)->klass_private->type) { case CP_CIRCLE_SHAPE: { float radius = PhysicsHelper::cpfloat2float(cpCircleShapeGetRadius(subShape)); Vec2 centre = PhysicsHelper::cpv2point(cpBodyGetPos(cpShapeGetBody(subShape))) + PhysicsHelper::cpv2point(cpCircleShapeGetOffset(subShape)); static const int CIRCLE_SEG_NUM = 12; Vec2 seg[CIRCLE_SEG_NUM] = {}; for (int i = 0; i < CIRCLE_SEG_NUM; ++i) { float angle = (float)i * M_PI / (float)CIRCLE_SEG_NUM * 2.0f; Vec2 d(radius * cosf(angle), radius * sinf(angle)); seg[i] = centre + d; } _drawNode->drawPolygon(seg, CIRCLE_SEG_NUM, fillColor, 1, outlineColor); break; } case CP_SEGMENT_SHAPE: { cpSegmentShape *seg = (cpSegmentShape *)subShape; _drawNode->drawSegment(PhysicsHelper::cpv2point(seg->ta), PhysicsHelper::cpv2point(seg->tb), PhysicsHelper::cpfloat2float(seg->r==0 ? 1 : seg->r), outlineColor); break; } case CP_POLY_SHAPE: { cpPolyShape* poly = (cpPolyShape*)subShape; int num = poly->numVerts; Vec2* seg = new (std::nothrow) Vec2[num]; PhysicsHelper::cpvs2points(poly->tVerts, seg, num); _drawNode->drawPolygon(seg, num, fillColor, 1.0f, outlineColor); delete[] seg; break; } default: break; } } } void PhysicsDebugDraw::drawJoint(PhysicsJoint& joint) { const Color4F lineColor(0.0f, 0.0f, 1.0f, 1.0f); const Color4F jointPointColor(0.0f, 1.0f, 0.0f, 1.0f); for (auto it = joint._cpConstraints.begin(); it != joint._cpConstraints.end(); ++it) { cpConstraint *constraint = *it; cpBody *body_a = constraint->a; cpBody *body_b = constraint->b; const cpConstraintClass *klass = constraint->klass_private; if(klass == cpPinJointGetClass()) { cpPinJoint *subJoint = (cpPinJoint *)constraint; cpVect a = cpvadd(body_a->p, cpvrotate(subJoint->anchr1, body_a->rot)); cpVect b = cpvadd(body_b->p, cpvrotate(subJoint->anchr2, body_b->rot)); _drawNode->drawSegment(PhysicsHelper::cpv2point(a), PhysicsHelper::cpv2point(b), 1, lineColor); _drawNode->drawDot(PhysicsHelper::cpv2point(a), 2, jointPointColor); _drawNode->drawDot(PhysicsHelper::cpv2point(b), 2, jointPointColor); } else if(klass == cpSlideJointGetClass()) { cpSlideJoint *subJoint = (cpSlideJoint *)constraint; cpVect a = cpvadd(body_a->p, cpvrotate(subJoint->anchr1, body_a->rot)); cpVect b = cpvadd(body_b->p, cpvrotate(subJoint->anchr2, body_b->rot)); _drawNode->drawSegment(PhysicsHelper::cpv2point(a), PhysicsHelper::cpv2point(b), 1, lineColor); _drawNode->drawDot(PhysicsHelper::cpv2point(a), 2, jointPointColor); _drawNode->drawDot(PhysicsHelper::cpv2point(b), 2, jointPointColor); } else if(klass == cpPivotJointGetClass()) { cpPivotJoint *subJoint = (cpPivotJoint *)constraint; cpVect a = cpvadd(body_a->p, cpvrotate(subJoint->anchr1, body_a->rot)); cpVect b = cpvadd(body_b->p, cpvrotate(subJoint->anchr2, body_b->rot)); _drawNode->drawDot(PhysicsHelper::cpv2point(a), 2, jointPointColor); _drawNode->drawDot(PhysicsHelper::cpv2point(b), 2, jointPointColor); } else if(klass == cpGrooveJointGetClass()) { cpGrooveJoint *subJoint = (cpGrooveJoint *)constraint; cpVect a = cpvadd(body_a->p, cpvrotate(subJoint->grv_a, body_a->rot)); cpVect b = cpvadd(body_a->p, cpvrotate(subJoint->grv_b, body_a->rot)); cpVect c = cpvadd(body_b->p, cpvrotate(subJoint->anchr2, body_b->rot)); _drawNode->drawSegment(PhysicsHelper::cpv2point(a), PhysicsHelper::cpv2point(b), 1, lineColor); _drawNode->drawDot(PhysicsHelper::cpv2point(c), 2, jointPointColor); } else if(klass == cpDampedSpringGetClass()) { cpDampedSpring *subJoint = (cpDampedSpring *)constraint; cpVect a = cpvadd(body_a->p, cpvrotate(subJoint->anchr1, body_a->rot)); cpVect b = cpvadd(body_b->p, cpvrotate(subJoint->anchr2, body_b->rot)); _drawNode->drawSegment(PhysicsHelper::cpv2point(a), PhysicsHelper::cpv2point(b), 1, lineColor); _drawNode->drawDot(PhysicsHelper::cpv2point(a), 2, jointPointColor); _drawNode->drawDot(PhysicsHelper::cpv2point(b), 2, jointPointColor); } } } void PhysicsDebugDraw::drawContact() { } NS_CC_END #endif // CC_USE_PHYSICS