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PhysicsTest.cpp
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PhysicsTest.cpp
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#include "PhysicsTest.h"
#if CC_USE_PHYSICS
#include <cmath>
#include "ui/CocosGUI.h"
#include "../testResource.h"
USING_NS_CC;
PhysicsTests::PhysicsTests()
{
ADD_TEST_CASE(PhysicsDemoLogoSmash);
ADD_TEST_CASE(PhysicsDemoPyramidStack);
ADD_TEST_CASE(PhysicsDemoClickAdd);
ADD_TEST_CASE(PhysicsDemoRayCast);
ADD_TEST_CASE(PhysicsDemoActions);
ADD_TEST_CASE(PhysicsDemoJoints);
ADD_TEST_CASE(PhysicsDemoPump);
ADD_TEST_CASE(PhysicsDemoOneWayPlatform);
ADD_TEST_CASE(PhysicsDemoSlice);
ADD_TEST_CASE(PhysicsDemoBug3988);
ADD_TEST_CASE(PhysicsContactTest);
ADD_TEST_CASE(PhysicsPositionRotationTest);
ADD_TEST_CASE(PhysicsSetGravityEnableTest);
ADD_TEST_CASE(PhysicsDemoBug5482);
ADD_TEST_CASE(PhysicsFixedUpdate);
ADD_TEST_CASE(PhysicsTransformTest);
ADD_TEST_CASE(PhysicsIssue9959);
ADD_TEST_CASE(PhysicsIssue15932);
}
namespace
{
Color4F STATIC_COLOR(1.0f, 0.0f, 0.0f, 1.0f);
const int DRAG_BODYS_TAG = 0x80;
}
void PhysicsDemo::toggleDebug()
{
#if CC_USE_PHYSICS
_debugDraw = !_debugDraw;
_physicsWorld->setDebugDrawMask(_debugDraw ? PhysicsWorld::DEBUGDRAW_ALL : PhysicsWorld::DEBUGDRAW_NONE);
#endif
}
PhysicsDemo::PhysicsDemo()
: _spriteTexture(nullptr)
, _ball(nullptr)
, _debugDraw(false)
{
}
bool PhysicsDemo::init()
{
TestCase::init();
return initWithPhysics();
}
PhysicsDemo::~PhysicsDemo()
{
}
std::string PhysicsDemo::title() const
{
return "PhysicsComponentTest";
}
void PhysicsDemo::onEnter()
{
TestCase::onEnter();
_spriteTexture = SpriteBatchNode::create("Images/grossini_dance_atlas.png", 100)->getTexture();
// menu for debug layer
MenuItemFont::setFontSize(18);
auto item = MenuItemFont::create("Toggle debug", CC_CALLBACK_1(PhysicsDemo::toggleDebugCallback, this));
auto menu = Menu::create(item, nullptr);
this->addChild(menu);
menu->setPosition(Vec2(VisibleRect::right().x - item->getContentSize().width / 2 - 10, VisibleRect::top().y - item->getContentSize().height / 2 - 10));
}
Sprite* PhysicsDemo::addGrossiniAtPosition(Vec2 p, float scale/* = 1.0*/)
{
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->setPosition(p);
sp->addComponent(PhysicsBody::createBox(Size(48.0f, 108.0f)));
this->addChild(sp);
return sp;
}
void PhysicsDemo::toggleDebugCallback(Ref* sender)
{
toggleDebug();
}
namespace
{
const int LOGO_WIDTH = 188;
const int LOGO_HEIGHT = 35;
const int LOGO_RAW_LENGTH = 24;
const char LOGO_IMAGE[] =
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};
int getPixel(int x, int y)
{
return (LOGO_IMAGE[(x >> 3) + y * LOGO_RAW_LENGTH] >> (~x & 0x7)) & 1;
}
float frand(void)
{
return rand() / RAND_MAX;
}
}
Sprite* PhysicsDemo::makeBall(Vec2 point, 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);
ball->addComponent(PhysicsBody::createCircle(ball->getContentSize().width / 2, material));
ball->setPosition(Vec2(point.x, point.y));
return ball;
}
Sprite* PhysicsDemo::makeBox(Vec2 point, Size size, int color, PhysicsMaterial material)
{
bool yellow = false;
if (color == 0)
{
yellow = CCRANDOM_0_1() > 0.5f;
}
else
{
yellow = color == 1;
}
auto box = yellow ? Sprite::create("Images/YellowSquare.png") : Sprite::create("Images/CyanSquare.png");
box->setScaleX(size.width / 100.0f);
box->setScaleY(size.height / 100.0f);
box->addComponent(PhysicsBody::createBox(box->getContentSize(), material));
box->setPosition(Vec2(point.x, point.y));
return box;
}
Sprite* PhysicsDemo::makeTriangle(Vec2 point, Size size, int color, PhysicsMaterial material)
{
bool yellow = false;
if (color == 0)
{
yellow = CCRANDOM_0_1() > 0.5f;
}
else
{
yellow = color == 1;
}
auto triangle = yellow ? 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);
}
Vec2 vers[] = { Vec2(0, triangle->getContentSize().height / 2), Vec2(triangle->getContentSize().width / 2, -triangle->getContentSize().height / 2), Vec2(-triangle->getContentSize().width / 2, -triangle->getContentSize().height / 2) };
triangle->addComponent(PhysicsBody::createPolygon(vers, 3, material));
triangle->setPosition(Vec2(point.x, point.y));
return triangle;
}
bool PhysicsDemo::onTouchBegan(Touch* touch, Event* event)
{
auto location = touch->getLocation();
auto arr = _physicsWorld->getShapes(location);
PhysicsBody* body = nullptr;
for (auto& obj : arr)
{
if ((obj->getBody()->getTag() & DRAG_BODYS_TAG) != 0)
{
body = obj->getBody();
break;
}
}
if (body != nullptr)
{
Node* mouse = Node::create();
auto physicsBody = PhysicsBody::create(PHYSICS_INFINITY, PHYSICS_INFINITY);
physicsBody->setDynamic(false);
mouse->addComponent(physicsBody);
mouse->setPosition(location);
this->addChild(mouse);
PhysicsJointPin* joint = PhysicsJointPin::construct(physicsBody, body, location);
joint->setMaxForce(5000.0f * body->getMass());
_physicsWorld->addJoint(joint);
_mouses.insert(std::make_pair(touch->getID(), mouse));
return true;
}
return false;
}
void PhysicsDemo::onTouchMoved(Touch* touch, Event* event)
{
auto it = _mouses.find(touch->getID());
if (it != _mouses.end())
{
it->second->setPosition(touch->getLocation());
}
}
void PhysicsDemo::onTouchEnded(Touch* touch, Event* event)
{
auto it = _mouses.find(touch->getID());
if (it != _mouses.end())
{
this->removeChild(it->second);
_mouses.erase(it);
}
}
// Implementation of PhysicsComponentDemoLogoSmash
void PhysicsDemoLogoSmash::onEnter()
{
PhysicsDemo::onEnter();
_physicsWorld->setGravity(Vec2(0, 0));
_physicsWorld->setUpdateRate(5.0f);
_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 (getPixel(x, y))
{
float xJitter = 0.05 * frand();
float yJitter = 0.05 * frand();
Node* ball = makeBall(Vec2(2*(x - LOGO_WIDTH/2 + xJitter) + VisibleRect::getVisibleRect().size.width/2,
2*(LOGO_HEIGHT-y + yJitter) + VisibleRect::getVisibleRect().size.height/2 - LOGO_HEIGHT/2),
0.95f, PhysicsMaterial(0.01f, 0.0f, 0.0f));
auto physicsBody = ball->getPhysicsBody();
physicsBody->setMass(1.0);
physicsBody->setMoment(PHYSICS_INFINITY);
_ball->addChild(ball);
}
}
}
auto bullet = makeBall(Vec2(400, 0), 10, PhysicsMaterial(PHYSICS_INFINITY, 0, 0));
bullet->getPhysicsBody()->setVelocity(Vec2(200, 0));
bullet->setPosition(Vec2(-500, VisibleRect::getVisibleRect().size.height/2));
_ball->addChild(bullet);
}
std::string PhysicsDemoLogoSmash::title() const
{
return "Logo Smash";
}
// Implementation of PhysicsComponentDemoClickAdd
PhysicsDemoClickAdd::~PhysicsDemoClickAdd()
{
Device::setAccelerometerEnabled(false);
}
void PhysicsDemoClickAdd::onEnter()
{
PhysicsDemo::onEnter();
auto touchListener = EventListenerTouchAllAtOnce::create();
touchListener->onTouchesEnded = CC_CALLBACK_2(PhysicsDemoClickAdd::onTouchesEnded, this);
_eventDispatcher->addEventListenerWithSceneGraphPriority(touchListener, this);
Device::setAccelerometerEnabled(true);
auto accListener = EventListenerAcceleration::create(CC_CALLBACK_2(PhysicsDemoClickAdd::onAcceleration, this));
_eventDispatcher->addEventListenerWithSceneGraphPriority(accListener, this);
auto node = Node::create();
node->addComponent(PhysicsBody::createEdgeBox(VisibleRect::getVisibleRect().size));
node->setPosition(VisibleRect::center());
this->addChild(node);
addGrossiniAtPosition(VisibleRect::center());
}
std::string PhysicsDemoClickAdd::subtitle() const
{
return "multi touch to add grossini";
}
void PhysicsDemoClickAdd::onTouchesEnded(const std::vector<Touch*>& 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)
{
static float prevX=0, prevY=0;
#define FILTER_FACTOR 0.05f
float accelX = (float) acc->x * FILTER_FACTOR + (1- FILTER_FACTOR)*prevX;
float accelY = (float) acc->y * FILTER_FACTOR + (1- FILTER_FACTOR)*prevY;
prevX = accelX;
prevY = accelY;
auto v = Vec2( accelX, accelY);
v = v * 200;
_physicsWorld->setGravity(v);
}
void PhysicsDemoPyramidStack::onEnter()
{
PhysicsDemo::onEnter();
auto touchListener = EventListenerTouchOneByOne::create();
touchListener->onTouchBegan = CC_CALLBACK_2(PhysicsDemoPyramidStack::onTouchBegan, this);
touchListener->onTouchMoved = CC_CALLBACK_2(PhysicsDemoPyramidStack::onTouchMoved, this);
touchListener->onTouchEnded = CC_CALLBACK_2(PhysicsDemoPyramidStack::onTouchEnded, this);
_eventDispatcher->addEventListenerWithSceneGraphPriority(touchListener, this);
auto node = Node::create();
node->addComponent(PhysicsBody::createEdgeSegment(VisibleRect::leftBottom() + Vec2(0, 50),
VisibleRect::rightBottom() + Vec2(0, 50)));
this->addChild(node);
auto ball = Sprite::create("Images/ball.png");
ball->setScale(1);
ball->setTag(100);
auto body = PhysicsBody::createCircle(10);
ball->addComponent(body);
body->setTag(DRAG_BODYS_TAG);
ball->setPosition(VisibleRect::bottom() + Vec2(0, 60));
this->addChild(ball);
scheduleOnce(CC_SCHEDULE_SELECTOR(PhysicsDemoPyramidStack::updateOnce), 3.0);
for (int i = 0; i < 14; i++)
{
for (int j = 0; j <= i; j++)
{
auto sp = addGrossiniAtPosition(VisibleRect::bottom() + Vec2((i / 2 - j) * 11, (14 - i) * 23 + 100), 0.2f);
sp->getPhysicsBody()->setTag(DRAG_BODYS_TAG);
}
}
}
void PhysicsDemoPyramidStack::updateOnce(float delta)
{
auto ball = getChildByTag(100);
if (ball)
ball->setScale(ball->getScale() * 3);
}
std::string PhysicsDemoPyramidStack::title() const
{
return "Pyramid Stack";
}
PhysicsDemoRayCast::PhysicsDemoRayCast()
: _angle(0.0f)
, _node(nullptr)
, _mode(0)
{}
void PhysicsDemoRayCast::onEnter()
{
PhysicsDemo::onEnter();
auto listener = EventListenerTouchAllAtOnce::create();
listener->onTouchesEnded = CC_CALLBACK_2(PhysicsDemoRayCast::onTouchesEnded, this);
_eventDispatcher->addEventListenerWithSceneGraphPriority(listener, this);
_physicsWorld->setGravity(Point::ZERO);
auto node = DrawNode::create();
node->addComponent(PhysicsBody::createEdgeSegment(VisibleRect::leftBottom() + Vec2(0, 50), VisibleRect::rightBottom() + Vec2(0, 50)));
node->drawSegment(VisibleRect::leftBottom() + Vec2(0, 50), VisibleRect::rightBottom() + Vec2(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, nullptr);
this->addChild(menu);
menu->setPosition(Vec2(VisibleRect::left().x + 100, VisibleRect::top().y - 10));
scheduleUpdate();
}
void PhysicsDemoRayCast::changeModeCallback(Ref* 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, const PhysicsRayCastInfo& info, void* data)
{
*((Vec2*)data) = info.contact;
return false;
}
void PhysicsDemoRayCast::update(float delta)
{
float L = 150.0f;
Vec2 point1 = VisibleRect::center();
Vec2 d(L * cosf(_angle), L * sinf(_angle));
Vec2 point2 = point1 + d;
removeChild(_node);
_node = DrawNode::create();
switch (_mode)
{
case 0:
{
Vec2 point3 = point2;
auto func = CC_CALLBACK_3(PhysicsDemoRayCast::anyRay, this);
_physicsWorld->rayCast(func, 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:
{
Vec2 point3 = point2;
float friction = 1.0f;
PhysicsRayCastCallbackFunc func = [&point3, &friction](PhysicsWorld& world, const PhysicsRayCastInfo& info, void* data)->bool
{
if (friction > info.fraction)
{
point3 = info.contact;
friction = info.fraction;
}
return true;
};
_physicsWorld->rayCast(func, point1, point2, nullptr);
_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:
{
#define MAX_MULTI_RAYCAST_NUM 5
Vec2 points[MAX_MULTI_RAYCAST_NUM];
int num = 0;
PhysicsRayCastCallbackFunc func = [&points, &num](PhysicsWorld& world, const PhysicsRayCastInfo& info, void* data)->bool
{
if (num < MAX_MULTI_RAYCAST_NUM)
{
points[num++] = info.contact;
}
return true;
};
_physicsWorld->rayCast(func, point1, point2, nullptr);
_node->drawSegment(point1, point2, 1, STATIC_COLOR);
for (int i = 0; i < num; ++i)
{
_node->drawDot(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<Touch*>& 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, 5 + CCRANDOM_0_1() * 10));
}
else if (r < 2.0f / 3.0f)
{
addChild(makeBox(location, Size(10 + CCRANDOM_0_1() * 15, 10 + CCRANDOM_0_1() * 15)));
}
else
{
addChild(makeTriangle(location, Size(10 + CCRANDOM_0_1() * 20, 10 + CCRANDOM_0_1() * 20)));
}
}
}
std::string PhysicsDemoRayCast::title() const
{
return "Ray Cast";
}
void PhysicsDemoActions::onEnter()
{
PhysicsDemo::onEnter();
_physicsWorld->setGravity(Vec2::ZERO);
auto touchListener = EventListenerTouchOneByOne::create();
touchListener->onTouchBegan = CC_CALLBACK_2(PhysicsDemoActions::onTouchBegan, this);
touchListener->onTouchMoved = CC_CALLBACK_2(PhysicsDemoActions::onTouchMoved, this);
touchListener->onTouchEnded = CC_CALLBACK_2(PhysicsDemoActions::onTouchEnded, this);
_eventDispatcher->addEventListenerWithSceneGraphPriority(touchListener, this);
auto node = Node::create();
node->addComponent(PhysicsBody::createEdgeBox(VisibleRect::getVisibleRect().size));
node->setPosition(VisibleRect::center());
this->addChild(node);
Sprite* sp1 = addGrossiniAtPosition(VisibleRect::center());
Sprite* sp2 = addGrossiniAtPosition(VisibleRect::left() + Vec2(50, 0));
Sprite* sp3 = addGrossiniAtPosition(VisibleRect::right() - Vec2(20, 0));
Sprite* sp4 = addGrossiniAtPosition(VisibleRect::leftTop() + Vec2(50, -50));
sp4->getPhysicsBody()->setGravityEnable(false);
sp1->getPhysicsBody()->setTag(DRAG_BODYS_TAG);
sp2->getPhysicsBody()->setTag(DRAG_BODYS_TAG);
sp3->getPhysicsBody()->setTag(DRAG_BODYS_TAG);
sp4->getPhysicsBody()->setTag(DRAG_BODYS_TAG);
auto actionTo = JumpTo::create(2, Vec2(100, 100), 50, 4);
auto actionBy = JumpBy::create(2, Vec2(300, 0), 50, 4);
auto actionUp = JumpBy::create(2, Vec2(0, 50), 80, 4);
auto actionByBack = actionBy->reverse();
auto rotateBy = RotateBy::create(2, 180);
auto rotateByBack = RotateBy::create(2, -180);
sp1->runAction(RepeatForever::create(actionUp));
sp2->runAction(RepeatForever::create(Sequence::create(actionBy, actionByBack, nullptr)));
sp3->runAction(actionTo);
sp4->runAction(RepeatForever::create(Sequence::create(rotateBy, rotateByBack, nullptr)));
}
std::string PhysicsDemoActions::title() const
{
return "Actions";
}
// implementation of PhysicsDemoJoints
void PhysicsDemoJoints::onEnter()
{
PhysicsDemo::onEnter();
toggleDebug();
auto listener = EventListenerTouchOneByOne::create();
listener->onTouchBegan = CC_CALLBACK_2(PhysicsDemo::onTouchBegan, this);
listener->onTouchMoved = CC_CALLBACK_2(PhysicsDemo::onTouchMoved, this);
listener->onTouchEnded = CC_CALLBACK_2(PhysicsDemo::onTouchEnded, this);
_eventDispatcher->addEventListenerWithSceneGraphPriority(listener, this);
float width = (VisibleRect::getVisibleRect().size.width - 10) / 4;
float height = (VisibleRect::getVisibleRect().size.height - 50) / 4;
Node* node = Node::create();
PhysicsBody* box = PhysicsBody::create();
node->addComponent(box);
box->setDynamic(false);
node->setPosition(Point::ZERO);
this->addChild(node);
for (int i = 0; i < 4; ++i)
{
for (int j = 0; j < 4; ++j)
{
Vec2 offset(VisibleRect::leftBottom().x + 5 + j * width + width/2, VisibleRect::leftBottom().y + 50 + i * height + height/2);
box->addShape(PhysicsShapeEdgeBox::create(Size(width, height), PHYSICSSHAPE_MATERIAL_DEFAULT, 1, offset));
switch (i*4 + j)
{
case 0:
{
auto sp1 = makeBall(offset - Vec2(30, 0), 10);
auto sp1PhysicsBody = sp1->getPhysicsBody();
sp1PhysicsBody->setTag(DRAG_BODYS_TAG);
auto sp2 = makeBall(offset + Vec2(30, 0), 10);
auto sp2PhysicsBody = sp2->getPhysicsBody();
sp2PhysicsBody->setTag(DRAG_BODYS_TAG);
PhysicsJointPin* joint = PhysicsJointPin::construct(sp1PhysicsBody, sp2PhysicsBody, offset);
getPhysicsWorld()->addJoint(joint);
this->addChild(sp1);
this->addChild(sp2);
break;
}
case 1:
{
auto sp1 = makeBall(offset - Vec2(30, 0), 10);
auto sp1PhysicsBody = sp1->getPhysicsBody();
sp1PhysicsBody->setTag(DRAG_BODYS_TAG);
auto sp2 = makeBox(offset + Vec2(30, 0), Size(30, 10));
auto sp2PhysicsBody = sp2->getPhysicsBody();
sp2PhysicsBody->setTag(DRAG_BODYS_TAG);
PhysicsJointFixed* joint = PhysicsJointFixed::construct(sp1PhysicsBody, sp2PhysicsBody, offset);
getPhysicsWorld()->addJoint(joint);
this->addChild(sp1);
this->addChild(sp2);
break;
}
case 2:
{
auto sp1 = makeBall(offset - Vec2(30, 0), 10);
auto sp1PhysicsBody = sp1->getPhysicsBody();
sp1PhysicsBody->setTag(DRAG_BODYS_TAG);
auto sp2 = makeBox(offset + Vec2(30, 0), Size(30, 10));
auto sp2PhysicsBody = sp2->getPhysicsBody();
sp2PhysicsBody->setTag(DRAG_BODYS_TAG);
PhysicsJointDistance* joint = PhysicsJointDistance::construct(sp1PhysicsBody, sp2PhysicsBody, Point::ZERO, Point::ZERO);
getPhysicsWorld()->addJoint(joint);
this->addChild(sp1);
this->addChild(sp2);
break;
}
case 3:
{
auto sp1 = makeBall(offset - Vec2(30, 0), 10);
auto sp1PhysicsBody = sp1->getPhysicsBody();
sp1PhysicsBody->setTag(DRAG_BODYS_TAG);
auto sp2 = makeBox(offset + Vec2(30, 0), Size(30, 10));
auto sp2PhysicsBody = sp2->getPhysicsBody();
sp2PhysicsBody->setTag(DRAG_BODYS_TAG);
PhysicsJointLimit* joint = PhysicsJointLimit::construct(sp1PhysicsBody, sp2PhysicsBody, Point::ZERO, Point::ZERO, 30.0f, 60.0f);
getPhysicsWorld()->addJoint(joint);
this->addChild(sp1);
this->addChild(sp2);
break;
}
case 4:
{
auto sp1 = makeBall(offset - Vec2(30, 0), 10);
auto sp1PhysicsBody = sp1->getPhysicsBody();
sp1PhysicsBody->setTag(DRAG_BODYS_TAG);
auto sp2 = makeBox(offset + Vec2(30, 0), Size(30, 10));
auto sp2PhysicsBody = sp2->getPhysicsBody();
sp2PhysicsBody->setTag(DRAG_BODYS_TAG);
PhysicsJointSpring* joint = PhysicsJointSpring::construct(sp1PhysicsBody, sp2PhysicsBody, Point::ZERO, Point::ZERO, 500.0f, 0.3f);
getPhysicsWorld()->addJoint(joint);
this->addChild(sp1);
this->addChild(sp2);
break;
}
case 5:
{
auto sp1 = makeBall(offset - Vec2(30, 0), 10);
auto sp1PhysicsBody = sp1->getPhysicsBody();
sp1PhysicsBody->setTag(DRAG_BODYS_TAG);
auto sp2 = makeBox(offset + Vec2(30, 0), Size(30, 10));
auto sp2PhysicsBody = sp2->getPhysicsBody();
sp2PhysicsBody->setTag(DRAG_BODYS_TAG);
PhysicsJointGroove* joint = PhysicsJointGroove::construct(sp1PhysicsBody, sp2PhysicsBody, Vec2(30, 15), Vec2(30, -15), Vec2(-30, 0));
getPhysicsWorld()->addJoint(joint);
this->addChild(sp1);
this->addChild(sp2);
break;
}
case 6:
{
auto sp1 = makeBox(offset - Vec2(30, 0), Size(30, 10));
auto sp1PhysicsBody = sp1->getPhysicsBody();
sp1PhysicsBody->setTag(DRAG_BODYS_TAG);
auto sp2 = makeBox(offset + Vec2(30, 0), Size(30, 10));
auto sp2PhysicsBody = sp2->getPhysicsBody();
sp2PhysicsBody->setTag(DRAG_BODYS_TAG);
getPhysicsWorld()->addJoint(PhysicsJointPin::construct(sp1PhysicsBody, box, sp1->getPosition()));
getPhysicsWorld()->addJoint(PhysicsJointPin::construct(sp2PhysicsBody, box, sp2->getPosition()));
PhysicsJointRotarySpring* joint = PhysicsJointRotarySpring::construct(sp1PhysicsBody, sp2PhysicsBody, 3000.0f, 60.0f);
getPhysicsWorld()->addJoint(joint);
this->addChild(sp1);
this->addChild(sp2);
break;
}
case 7:
{
auto sp1 = makeBox(offset - Vec2(30, 0), Size(30, 10));
auto sp1PhysicsBody = sp1->getPhysicsBody();
sp1PhysicsBody->setTag(DRAG_BODYS_TAG);
auto sp2 = makeBox(offset + Vec2(30, 0), Size(30, 10));
auto sp2PhysicsBody = sp2->getPhysicsBody();
sp2PhysicsBody->setTag(DRAG_BODYS_TAG);
getPhysicsWorld()->addJoint(PhysicsJointPin::construct(sp1PhysicsBody, box, sp1->getPosition()));
getPhysicsWorld()->addJoint(PhysicsJointPin::construct(sp2PhysicsBody, box, sp2->getPosition()));
PhysicsJointRotaryLimit* joint = PhysicsJointRotaryLimit::construct(sp1PhysicsBody, sp2PhysicsBody, 0.0f,(float) M_PI_2);
getPhysicsWorld()->addJoint(joint);
this->addChild(sp1);
this->addChild(sp2);
break;
}
case 8:
{
auto sp1 = makeBox(offset - Vec2(30, 0), Size(30, 10));
auto sp1PhysicsBody = sp1->getPhysicsBody();
sp1PhysicsBody->setTag(DRAG_BODYS_TAG);
auto sp2 = makeBox(offset + Vec2(30, 0), Size(30, 10));
auto sp2PhysicsBody = sp2->getPhysicsBody();
sp2PhysicsBody->setTag(DRAG_BODYS_TAG);
getPhysicsWorld()->addJoint(PhysicsJointPin::construct(sp1PhysicsBody, box, sp1->getPosition()));
getPhysicsWorld()->addJoint(PhysicsJointPin::construct(sp2PhysicsBody, box, sp2->getPosition()));
PhysicsJointRatchet* joint = PhysicsJointRatchet::construct(sp1PhysicsBody, sp2PhysicsBody, 0.0f, (float)M_PI_2);
getPhysicsWorld()->addJoint(joint);
this->addChild(sp1);
this->addChild(sp2);
break;
}
case 9:
{
auto sp1 = makeBox(offset - Vec2(30, 0), Size(30, 10));
auto sp1PhysicsBody = sp1->getPhysicsBody();
sp1PhysicsBody->setTag(DRAG_BODYS_TAG);
auto sp2 = makeBox(offset + Vec2(30, 0), Size(30, 10));
auto sp2PhysicsBody = sp2->getPhysicsBody();
sp2PhysicsBody->setTag(DRAG_BODYS_TAG);
getPhysicsWorld()->addJoint(PhysicsJointPin::construct(sp1PhysicsBody, box, sp1->getPosition()));
getPhysicsWorld()->addJoint(PhysicsJointPin::construct(sp2PhysicsBody, box, sp2->getPosition()));
PhysicsJointGear* joint = PhysicsJointGear::construct(sp1PhysicsBody, sp2PhysicsBody, 0.0f, 2.0f);
getPhysicsWorld()->addJoint(joint);
this->addChild(sp1);
this->addChild(sp2);
break;
}
case 10:
{
auto sp1 = makeBox(offset - Vec2(30, 0), Size(30, 10));
auto sp1PhysicsBody = sp1->getPhysicsBody();
sp1PhysicsBody->setTag(DRAG_BODYS_TAG);
auto sp2 = makeBox(offset + Vec2(30, 0), Size(30, 10));
auto sp2PhysicsBody = sp2->getPhysicsBody();
sp2PhysicsBody->setTag(DRAG_BODYS_TAG);
getPhysicsWorld()->addJoint(PhysicsJointPin::construct(sp1PhysicsBody, box, sp1->getPosition()));
getPhysicsWorld()->addJoint(PhysicsJointPin::construct(sp2PhysicsBody, box, sp2->getPosition()));
PhysicsJointMotor* joint = PhysicsJointMotor::construct(sp1PhysicsBody, sp2PhysicsBody, (float)M_PI_2);
getPhysicsWorld()->addJoint(joint);
this->addChild(sp1);
this->addChild(sp2);
break;
}
default:
break;
}
}
}
}
std::string PhysicsDemoJoints::title() const
{
return "Joints";
}
void PhysicsDemoPump::onEnter()
{
PhysicsDemo::onEnter();
toggleDebug();
_distance = 0.0f;
_rotationV = 0.0f;
auto touchListener = EventListenerTouchOneByOne::create();
touchListener->onTouchBegan = CC_CALLBACK_2(PhysicsDemoPump::onTouchBegan, this);
touchListener->onTouchMoved = CC_CALLBACK_2(PhysicsDemoPump::onTouchMoved, this);
touchListener->onTouchEnded = CC_CALLBACK_2(PhysicsDemoPump::onTouchEnded, this);
_eventDispatcher->addEventListenerWithSceneGraphPriority(touchListener, this);
scheduleUpdate();
auto node = Node::create();
auto nodeBody = PhysicsBody::create();
node->addComponent(nodeBody);
nodeBody->setDynamic(false);
PhysicsMaterial staticMaterial(PHYSICS_INFINITY, 0, 0.5f);
nodeBody->addShape(PhysicsShapeEdgeSegment::create(VisibleRect::leftTop() + Vec2(50, 0), VisibleRect::leftTop() + Vec2(50, -130), staticMaterial, 2.0f));
nodeBody->addShape(PhysicsShapeEdgeSegment::create(VisibleRect::leftTop() + Vec2(190, 0), VisibleRect::leftTop() + Vec2(100, -50), staticMaterial, 2.0f));
nodeBody->addShape(PhysicsShapeEdgeSegment::create(VisibleRect::leftTop() + Vec2(100, -50), VisibleRect::leftTop() + Vec2(100, -90), staticMaterial, 2.0f));
nodeBody->addShape(PhysicsShapeEdgeSegment::create(VisibleRect::leftTop() + Vec2(50, -130), VisibleRect::leftTop() + Vec2(100, -145), staticMaterial, 2.0f));
nodeBody->addShape(PhysicsShapeEdgeSegment::create(VisibleRect::leftTop() + Vec2(100, -145), VisibleRect::leftBottom() + Vec2(100, 80), staticMaterial, 2.0f));
nodeBody->addShape(PhysicsShapeEdgeSegment::create(VisibleRect::leftTop() + Vec2(150, -80), VisibleRect::leftBottom() + Vec2(150, 80), staticMaterial, 2.0f));
nodeBody->addShape(PhysicsShapeEdgeSegment::create(VisibleRect::leftTop() + Vec2(150, -80), VisibleRect::rightTop() + Vec2(-100, -150), staticMaterial, 2.0f));
nodeBody->setCategoryBitmask(0x01);
node->setPosition(Vec2::ZERO);
this->addChild(node);
// balls
for (int i = 0; i < 6; ++i)
{
auto ball = makeBall(VisibleRect::leftTop() + Vec2(75 + CCRANDOM_0_1() * 90, 0), 22, PhysicsMaterial(0.05f, 0.0f, 0.1f));
ball->getPhysicsBody()->setTag(DRAG_BODYS_TAG);
addChild(ball);
}
Vec2 vec[4] =
{
VisibleRect::leftTop() + Vec2(102, -148),
VisibleRect::leftTop() + Vec2(148, -161),
VisibleRect::leftBottom() + Vec2(148, 20),
VisibleRect::leftBottom() + Vec2(102, 20)
};
// pump
auto pump = Node::create();
auto center = PhysicsShape::getPolyonCenter(vec, 4);
pump->setPosition(center);
auto pumpBody = PhysicsBody::createPolygon(vec, 4, PHYSICSBODY_MATERIAL_DEFAULT, -center);
pump->addComponent(pumpBody);
this->addChild(pump);
pumpBody->setCategoryBitmask(0x02);
pumpBody->setGravityEnable(false);
// small gear
auto sgearBody = PhysicsBody::createCircle(44);
sgearBody->setCategoryBitmask(0x04);
sgearBody->setCollisionBitmask(0x04);
sgearBody->setTag(1);
auto sgear = Node::create();
sgear->addComponent(sgearBody);
sgear->setPosition(VisibleRect::leftBottom() + Vec2(125, 0));
this->addChild(sgear);
_physicsWorld->addJoint(PhysicsJointPin::construct(nodeBody, sgearBody, sgear->getPosition()));
_physicsWorld->addJoint(PhysicsJointDistance::construct(pumpBody, sgearBody, Vec2(0, 0), Vec2(0, -44)));
// big gear
auto bgearBody = PhysicsBody::createCircle(100);
bgearBody->setCategoryBitmask(0x04);
auto bgear = Node::create();
bgear->addComponent(bgearBody);
bgear->setPosition(VisibleRect::leftBottom() + Vec2(275, 0));
this->addChild(bgear);
_physicsWorld->addJoint(PhysicsJointPin::construct(bgearBody, nodeBody, bgear->getPosition()));
_physicsWorld->addJoint(PhysicsJointGear::construct(sgearBody, bgearBody, (float)-M_PI_2, -2.0f));
// plugger
Vec2 seg[] = { VisibleRect::leftTop() + Vec2(75, -120), VisibleRect::leftBottom() + Vec2(75, -100) };
Vec2 segCenter = (seg[1] + seg[0]) / 2;
seg[1] -= segCenter;