#include "PhysicsTest.h" #include "../testResource.h" USING_NS_CC; namespace { static std::function createFunctions[] = { CL(PhysicsDemoLogoSmash), CL(PhysicsDemoPyramidStack), CL(PhysicsDemoPlink), CL(PhysicsDemoClickAdd), CL(PhysicsDemoRayCast), }; static int sceneIdx=-1; #define MAX_LAYER (sizeof(createFunctions) / sizeof(createFunctions[0])) static Layer* next() { sceneIdx++; sceneIdx = sceneIdx % MAX_LAYER; auto layer = (createFunctions[sceneIdx])(); layer->init(); layer->autorelease(); return layer; } static Layer* back() { sceneIdx--; int total = MAX_LAYER; if( sceneIdx < 0 ) sceneIdx += total; auto layer = (createFunctions[sceneIdx])(); layer->init(); layer->autorelease(); return layer; } static Layer* restart() { auto layer = (createFunctions[sceneIdx])(); layer->init(); layer->autorelease(); return layer; } static const Color4F STATIC_COLOR(1.0f, 0.0f, 0.0f, 1.0f); } bool PhysicsTestScene::_debugDraw = false; bool PhysicsTestScene::initTest() { #ifdef CC_USE_PHYSICS if(TestScene::initWithPhysics()) { this->getPhysicsWorld()->setDebugDraw(_debugDraw); return true; } #else return TestScene::init(); #endif return false; } void PhysicsTestScene::runThisTest() { #ifdef CC_USE_PHYSICS sceneIdx = -1; addChild(next()); Director::getInstance()->replaceScene(this); #else #endif } void PhysicsTestScene::toggleDebug() { _debugDraw = !_debugDraw; getPhysicsWorld()->setDebugDraw(_debugDraw); } PhysicsDemo::PhysicsDemo() : _scene(nullptr) , _ball(nullptr) , _spriteTexture(nullptr) , _mouse(nullptr) { } PhysicsDemo::~PhysicsDemo() { } std::string PhysicsDemo::title() { return "PhysicsTest"; } std::string PhysicsDemo::subtitle() { return ""; } void PhysicsDemo::restartCallback(Object* sender) { auto s = new PhysicsTestScene(); s->initTest(); s->addChild( restart() ); Director::getInstance()->replaceScene(s); s->release(); } void PhysicsDemo::nextCallback(Object* sender) { auto s = new PhysicsTestScene(); s->initTest(); s->addChild( next() ); Director::getInstance()->replaceScene(s); s->release(); } void PhysicsDemo::backCallback(Object* sender) { auto s = new PhysicsTestScene(); s->initTest(); s->addChild( back() ); Director::getInstance()->replaceScene(s); s->release(); } void PhysicsDemo::onEnter() { BaseTest::onEnter(); _scene = dynamic_cast(this->getParent()); _spriteTexture = SpriteBatchNode::create("Images/grossini_dance_atlas.png", 100)->getTexture(); #ifdef CC_USE_PHYSICS // menu for debug layer MenuItemFont::setFontSize(18); auto item = MenuItemFont::create("Toggle debug", CC_CALLBACK_1(PhysicsDemo::toggleDebugCallback, this)); auto menu = Menu::create(item, NULL); this->addChild(menu); menu->setPosition(Point(VisibleRect::right().x-50, VisibleRect::top().y-10)); #else #endif } void PhysicsDemo::addGrossiniAtPosition(Point p, float scale/* = 1.0*/) { #ifdef CC_USE_PHYSICS CCLOG("Add sprite %0.2f x %02.f",p.x,p.y); int posx, posy; posx = CCRANDOM_0_1() * 200.0f; posy = CCRANDOM_0_1() * 200.0f; posx = (posx % 4) * 85; posy = (posy % 3) * 121; auto sp = Sprite::createWithTexture(_spriteTexture, Rect(posx, posy, 85, 121)); sp->setScale(scale); sp->setPhysicsBody(PhysicsBody::createBox(Size(48.0f * scale, 108.0f * scale))); this->addChild(sp); sp->setPosition(p); #endif } void PhysicsDemo::toggleDebugCallback(Object* sender) { #ifdef CC_USE_PHYSICS if (_scene != nullptr) { _scene->toggleDebug(); } #endif } void PhysicsDemoClickAdd::onEnter() { PhysicsDemo::onEnter(); #ifdef CC_USE_PHYSICS setTouchEnabled(true); setAccelerometerEnabled(true); auto node = Node::create(); node->setPhysicsBody(PhysicsBody::createEdgeBox(VisibleRect::getVisibleRect().size)); node->setPosition(VisibleRect::center()); this->addChild(node); addGrossiniAtPosition(VisibleRect::center()); #else auto label = LabelTTF::create("Should define CC_USE_BOX2D or CC_USE_CHIPMUNK\n to run this test case", "Arial", 18); auto size = Director::getInstance()->getWinSize(); label->setPosition(Point(size.width/2, size.height/2)); addChild(label); #endif } std::string PhysicsDemoClickAdd::subtitle() { return "multi touch to add grossini"; } void PhysicsDemoClickAdd::onTouchesEnded(const std::vector& touches, Event* event) { //Add a new body/atlas sprite at the touched location for( auto &touch: touches) { auto location = touch->getLocation(); addGrossiniAtPosition( location ); } } void PhysicsDemoClickAdd::onAcceleration(Acceleration* acc, Event* event) { #ifdef CC_USE_PHYSICS static float prevX=0, prevY=0; #define kFilterFactor 0.05f float accelX = (float) acc->x * kFilterFactor + (1- kFilterFactor)*prevX; float accelY = (float) acc->y * kFilterFactor + (1- kFilterFactor)*prevY; prevX = accelX; prevY = accelY; auto v = Point( accelX, accelY); v = v * 200; if(_scene != nullptr) { _scene->getPhysicsWorld()->setGravity(v); } #endif } namespace { static const int logo_width = 188; static const int logo_height = 35; static const int logo_row_length = 24; static const char logo_image[] = { 15,-16,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,7,-64,15,63,-32,-2,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,31,-64,15,127,-125,-1,-128,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,127,-64,15,127,15,-1,-64,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,-1,-64,15,-2, 31,-1,-64,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,-1,-64,0,-4,63,-1,-32,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,1,-1,-64,15,-8,127,-1,-32,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 1,-1,-64,0,-8,-15,-1,-32,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,-31,-1,-64,15,-8,-32, -1,-32,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,7,-15,-1,-64,9,-15,-32,-1,-32,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,31,-15,-1,-64,0,-15,-32,-1,-32,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,63,-7,-1,-64,9,-29,-32,127,-61,-16,63,15,-61,-1,-8,31,-16,15,-8,126,7,-31, -8,31,-65,-7,-1,-64,9,-29,-32,0,7,-8,127,-97,-25,-1,-2,63,-8,31,-4,-1,15,-13, -4,63,-1,-3,-1,-64,9,-29,-32,0,7,-8,127,-97,-25,-1,-2,63,-8,31,-4,-1,15,-13, -2,63,-1,-3,-1,-64,9,-29,-32,0,7,-8,127,-97,-25,-1,-1,63,-4,63,-4,-1,15,-13, -2,63,-33,-1,-1,-32,9,-25,-32,0,7,-8,127,-97,-25,-1,-1,63,-4,63,-4,-1,15,-13, -1,63,-33,-1,-1,-16,9,-25,-32,0,7,-8,127,-97,-25,-1,-1,63,-4,63,-4,-1,15,-13, -1,63,-49,-1,-1,-8,9,-57,-32,0,7,-8,127,-97,-25,-8,-1,63,-2,127,-4,-1,15,-13, -1,-65,-49,-1,-1,-4,9,-57,-32,0,7,-8,127,-97,-25,-8,-1,63,-2,127,-4,-1,15,-13, -1,-65,-57,-1,-1,-2,9,-57,-32,0,7,-8,127,-97,-25,-8,-1,63,-2,127,-4,-1,15,-13, -1,-1,-57,-1,-1,-1,9,-57,-32,0,7,-1,-1,-97,-25,-8,-1,63,-1,-1,-4,-1,15,-13,-1, -1,-61,-1,-1,-1,-119,-57,-32,0,7,-1,-1,-97,-25,-8,-1,63,-1,-1,-4,-1,15,-13,-1, -1,-61,-1,-1,-1,-55,-49,-32,0,7,-1,-1,-97,-25,-8,-1,63,-1,-1,-4,-1,15,-13,-1, -1,-63,-1,-1,-1,-23,-49,-32,127,-57,-1,-1,-97,-25,-1,-1,63,-1,-1,-4,-1,15,-13, -1,-1,-63,-1,-1,-1,-16,-49,-32,-1,-25,-1,-1,-97,-25,-1,-1,63,-33,-5,-4,-1,15, -13,-1,-1,-64,-1,-9,-1,-7,-49,-32,-1,-25,-8,127,-97,-25,-1,-1,63,-33,-5,-4,-1, 15,-13,-1,-1,-64,-1,-13,-1,-32,-49,-32,-1,-25,-8,127,-97,-25,-1,-2,63,-49,-13, -4,-1,15,-13,-1,-1,-64,127,-7,-1,-119,-17,-15,-1,-25,-8,127,-97,-25,-1,-2,63, -49,-13,-4,-1,15,-13,-3,-1,-64,127,-8,-2,15,-17,-1,-1,-25,-8,127,-97,-25,-1, -8,63,-49,-13,-4,-1,15,-13,-3,-1,-64,63,-4,120,0,-17,-1,-1,-25,-8,127,-97,-25, -8,0,63,-57,-29,-4,-1,15,-13,-4,-1,-64,63,-4,0,15,-17,-1,-1,-25,-8,127,-97, -25,-8,0,63,-57,-29,-4,-1,-1,-13,-4,-1,-64,31,-2,0,0,103,-1,-1,-57,-8,127,-97, -25,-8,0,63,-57,-29,-4,-1,-1,-13,-4,127,-64,31,-2,0,15,103,-1,-1,-57,-8,127, -97,-25,-8,0,63,-61,-61,-4,127,-1,-29,-4,127,-64,15,-8,0,0,55,-1,-1,-121,-8, 127,-97,-25,-8,0,63,-61,-61,-4,127,-1,-29,-4,63,-64,15,-32,0,0,23,-1,-2,3,-16, 63,15,-61,-16,0,31,-127,-127,-8,31,-1,-127,-8,31,-128,7,-128,0,0 }; static inline int get_pixel(int x, int y) { return (logo_image[(x>>3) + y*logo_row_length]>>(~x&0x7)) & 1; } static inline float frand(void) { return rand()/RAND_MAX; } } Sprite* PhysicsDemo::makeBall(float x, float y, float radius, PhysicsMaterial material) { Sprite* ball = nullptr; if (_ball != nullptr) { ball = Sprite::createWithTexture(_ball->getTexture()); }else { ball = Sprite::create("Images/ball.png"); } ball->setScale(0.13f * radius); auto body = PhysicsBody::createCircle(radius, material); ball->setPhysicsBody(body); ball->setPosition(Point(x, y)); return ball; } Sprite* PhysicsDemo::makeBox(float x, float y, Size size, PhysicsMaterial material) { auto box = CCRANDOM_0_1() > 0.5f ? Sprite::create("Images/YellowSquare.png") : Sprite::create("Images/CyanSquare.png"); box->setScaleX(size.width/100.0f); box->setScaleY(size.height/100.0f); auto body = PhysicsBody::createBox(size); box->setPhysicsBody(body); box->setPosition(Point(x, y)); return box; } Sprite* PhysicsDemo::makeTriangle(float x, float y, Size size, PhysicsMaterial material) { auto triangle = CCRANDOM_0_1() > 0.5f ? Sprite::create("Images/YellowTriangle.png") : Sprite::create("Images/CyanTriangle.png"); if(size.height == 0) { triangle->setScale(size.width/100.0f); }else { triangle->setScaleX(size.width/50.0f); triangle->setScaleY(size.height/43.5f); } Point vers[] = { Point(0, size.height/2), Point(size.width/2, -size.height/2), Point(-size.width/2, -size.height/2)}; auto body = PhysicsBody::createPolygon(vers, 3); triangle->setPhysicsBody(body); triangle->setPosition(Point(x, y)); return triangle; } void PhysicsDemo::onTouchesBegan(const std::vector& touches, Event* event) { for( auto &touch: touches) { auto location = touch->getLocation(); Array* arr = _scene->getPhysicsWorld()->getShapesAtPoint(location); PhysicsShape* shape = nullptr; for (Object* obj : *arr) { } } } void PhysicsDemo::onTouchesMoved(const std::vector& touches, Event* event) { } void PhysicsDemo::onTouchesEnded(const std::vector& touches, Event* event) { } void PhysicsDemoLogoSmash::onEnter() { PhysicsDemo::onEnter(); _scene->getPhysicsWorld()->setGravity(Point(0, 0)); _ball = SpriteBatchNode::create("Images/ball.png", sizeof(logo_image)/sizeof(logo_image[0])); addChild(_ball); for (int y = 0; y < logo_height; ++y) { for (int x = 0; x < logo_width; ++x) { if (get_pixel(x, y)) { float x_jitter = 0.05*frand(); float y_jitter = 0.05*frand(); Node* ball = makeBall(2*(x - logo_width/2 + x_jitter) + VisibleRect::getVisibleRect().size.width/2, 2*(logo_height-y + y_jitter) + VisibleRect::getVisibleRect().size.height/2 - logo_height/2, 0.95f, PhysicsMaterial(1.0f, 0.0f, 0.0f)); ball->getPhysicsBody()->setMass(1.0); ball->getPhysicsBody()->setMoment(PHYSICS_INFINITY); _ball->addChild(ball); } } } auto bullet = makeBall(400, 0, 10, PhysicsMaterial(PHYSICS_INFINITY, 0, 0)); bullet->getPhysicsBody()->setVelocity(Point(400, 0)); bullet->setPosition(Point(-1000, VisibleRect::getVisibleRect().size.height/2)); _ball->addChild(bullet); } std::string PhysicsDemoLogoSmash::title() { return "Logo Smash"; } void PhysicsDemoPyramidStack::onEnter() { PhysicsDemo::onEnter(); auto node = Node::create(); node->setPhysicsBody(PhysicsBody::createEdgeSegment(VisibleRect::leftBottom() + Point(0, 50), VisibleRect::rightBottom() + Point(0, 50))); this->addChild(node); auto ball = Sprite::create("Images/ball.png"); ball->setScale(1); ball->setPhysicsBody(PhysicsBody::createCircle(10)); ball->setPosition(VisibleRect::bottom() + Point(0, 60)); this->addChild(ball); for(int i=0; i<14; i++) { for(int j=0; j<=i; j++) { addGrossiniAtPosition(VisibleRect::bottom() + Point((i/2 - j) * 11, (14 - i) * 23 + 100), 0.2f); } } } std::string PhysicsDemoPyramidStack::title() { return "Pyramid Stack"; } void PhysicsDemoPlink::onEnter() { PhysicsDemo::onEnter(); auto node = DrawNode::create(); auto body = PhysicsBody::create(); body->setDynamic(false); node->setPhysicsBody(body); Point tris[] = { Point(-15, -15), Point(0, 10), Point(15, -15) }; auto rect = VisibleRect::getVisibleRect(); for (int i = 0; i < 9; ++i) { for (int j = 0; j < 4; ++j) { Point offset(rect.origin.x + rect.size.width/9*i + (j%2)*40 - 20, rect.origin.y + j*70); body->addShape(PhysicsShapePolygon::create(tris, 3, PHYSICSSHAPE_MATERIAL_DEFAULT, offset)); Point drawVec[] = {tris[0] + offset, tris[1] + offset, tris[2] + offset}; node->drawPolygon(drawVec, 3, STATIC_COLOR, 1, STATIC_COLOR); } } addChild(node); } std::string PhysicsDemoPlink::title() { return "Plink"; } PhysicsDemoRayCast::PhysicsDemoRayCast() : _angle(0.0f) , _node(nullptr) , _mode(0) {} void PhysicsDemoRayCast::onEnter() { PhysicsDemo::onEnter(); setTouchEnabled(true); _scene->getPhysicsWorld()->setGravity(Point::ZERO); auto node = DrawNode::create(); node->setPhysicsBody(PhysicsBody::createEdgeSegment(VisibleRect::leftBottom() + Point(0, 50), VisibleRect::rightBottom() + Point(0, 50))); node->drawSegment(VisibleRect::leftBottom() + Point(0, 50), VisibleRect::rightBottom() + Point(0, 50), 1, STATIC_COLOR); this->addChild(node); MenuItemFont::setFontSize(18); auto item = MenuItemFont::create("Change Mode(any)", CC_CALLBACK_1(PhysicsDemoRayCast::changeModeCallback, this)); auto menu = Menu::create(item, NULL); this->addChild(menu); menu->setPosition(Point(VisibleRect::left().x+100, VisibleRect::top().y-10)); scheduleUpdate(); } void PhysicsDemoRayCast::changeModeCallback(Object* sender) { _mode = (_mode + 1) % 3; switch (_mode) { case 0: ((MenuItemFont*)sender)->setString("Change Mode(any)"); break; case 1: ((MenuItemFont*)sender)->setString("Change Mode(nearest)"); break; case 2: ((MenuItemFont*)sender)->setString("Change Mode(multiple)"); break; default: break; } } bool PhysicsDemoRayCast::anyRay(PhysicsWorld& world, PhysicsShape& shape, Point point, Point normal, float fraction, void* data) { *((Point*)data) = point; return false; } class PhysicsDemoNearestRayCastCallback : public PhysicsRayCastCallback { public: PhysicsDemoNearestRayCastCallback(); private: float _friction; }; PhysicsDemoNearestRayCastCallback::PhysicsDemoNearestRayCastCallback() : _friction(1.0f) { report = [this](PhysicsWorld& world, PhysicsShape& shape, Point point, Point normal, float fraction, void* data)->bool { if (_friction > fraction) { *((Point*)data) = point; _friction = fraction; } return true; }; } namespace { static const int MAX_MULTI_RAYCAST_NUM = 5; } class PhysicsDemoMultiRayCastCallback : public PhysicsRayCastCallback { public: PhysicsDemoMultiRayCastCallback(); public: Point points[MAX_MULTI_RAYCAST_NUM]; int num; }; PhysicsDemoMultiRayCastCallback::PhysicsDemoMultiRayCastCallback() : num(0) { report = [this](PhysicsWorld& world, PhysicsShape& shape, Point point, Point normal, float fraction, void* data)->bool { if (num < MAX_MULTI_RAYCAST_NUM) { points[num++] = point; } return true; }; } void PhysicsDemoRayCast::update(float delta) { float L = 150.0f; Point point1 = VisibleRect::center(); Point d(L * cosf(_angle), L * sinf(_angle)); Point point2 = point1 + d; removeChild(_node); _node = DrawNode::create(); switch (_mode) { case 0: { PhysicsRayCastCallback callback; Point point3 = point2; callback.report = anyRay; _scene->getPhysicsWorld()->rayCast(callback, point1, point2, &point3); _node->drawSegment(point1, point3, 1, STATIC_COLOR); if (point2 != point3) { _node->drawDot(point3, 2, Color4F(1.0f, 1.0f, 1.0f, 1.0f)); } addChild(_node); break; } case 1: { PhysicsDemoNearestRayCastCallback callback; Point point3 = point2; _scene->getPhysicsWorld()->rayCast(callback, point1, point2, &point3); _node->drawSegment(point1, point3, 1, STATIC_COLOR); if (point2 != point3) { _node->drawDot(point3, 2, Color4F(1.0f, 1.0f, 1.0f, 1.0f)); } addChild(_node); break; } case 2: { PhysicsDemoMultiRayCastCallback callback; _scene->getPhysicsWorld()->rayCast(callback, point1, point2, nullptr); _node->drawSegment(point1, point2, 1, STATIC_COLOR); for (int i = 0; i < callback.num; ++i) { _node->drawDot(callback.points[i], 2, Color4F(1.0f, 1.0f, 1.0f, 1.0f)); } addChild(_node); break; } default: break; } _angle += 0.25f * (float)M_PI / 180.0f; } void PhysicsDemoRayCast::onTouchesEnded(const std::vector& touches, Event* event) { //Add a new body/atlas sprite at the touched location for( auto &touch: touches) { auto location = touch->getLocation(); float r = CCRANDOM_0_1(); if (r < 1.0f/3.0f) { addChild(makeBall(location.x, location.y, 5 + CCRANDOM_0_1()*10)); }else if(r < 2.0f/3.0f) { addChild(makeBox(location.x, location.y, Size(10 + CCRANDOM_0_1()*15, 10 + CCRANDOM_0_1()*15))); }else { addChild(makeTriangle(location.x, location.y, Size(10 + CCRANDOM_0_1()*20, 10 + CCRANDOM_0_1()*20))); } } } std::string PhysicsDemoRayCast::title() { return "Ray Cast"; } void PhysicsDemoJoints::onEnter() { PhysicsDemo::onEnter(); setTouchEnabled(true); _scene->getPhysicsWorld()->setGravity(Point::ZERO); } std::string PhysicsDemoJoints::title() { return "Joints"; }