Cocos2d-x3.3 Physics物理引擎模块解决了刚体穿透问题

概述void PhysicsFixedUpdate::onEnter() {     PhysicsDemo::onEnter();          _scene->getPhysicsWorld()->setDebugDrawMask(PhysicsWorld::DEBUGDRAW_ALL);     _scene->getPhysicsWorld()->setGravity(Point::ZER

voIDPhysicsFixedUpdate::onEnter()

{

PhysicsDemo::onEnter();

_scene->getPhysicsWorld()->setDeBUGDrawMask(PhysicsWorld::DEBUGDRAW_ALL);

_scene->getPhysicsWorld()->setGravity(Point::ZERO);

// wall

autowall =Node::create();

wall->setPhysicsBody(PhysicsBody::createEdgeBox(VisibleRect::getVisibleRect().size,PhysicsMaterial(0.1f,1,0.0f)));

wall->setposition(VisibleRect::center());

this->addChild(wall);

addBall();

scheduleOnce(schedule_selector(PhysicsFixedUpdate::updateStart),2);

}

voIDPhysicsFixedUpdate::addBall()

{

autoball =Sprite::create("Images/ball.png");

ball->setposition(100,100);

ball->setPhysicsBody(PhysicsBody::createCircle(ball->getContentSize().wIDth/2,0.0f)));

ball->getPhysicsBody()->setTag(DRAG_BODYS_TAG);

ball->getPhysicsBody()->setVeLocity(Point(1000,20));

this->addChild(ball);

voIDPhysicsFixedUpdate::updateStart(floatdelta)

//重点在这里

_scene->getPhysicsWorld()->setautoStep(false);

scheduleUpdate();

voIDPhysicsFixedUpdate::update(floatdelta)

{

// use fixed time and calculate 3 times per frame makes physics simulate more precisely.

//这里表示先走3步瞧瞧 如果fps是1/60 三个setp就是1/180

for(inti =0; i <3; ++i)

{

_scene->getPhysicsWorld()->step(1/180.0f);

}

}

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