cocos2dx笛卡尔坐标

发布时间：2020-12-14 21:42:17 所属栏目：百科来源：网络整理

导读：bool HelloWorld::init() { ////////////////////////////// // 1. super init first if ( !Layer::init() ) { return false; } Size visibleSize = Director::getInstance()-getVisibleSize(); Vec2 origin = Director::getInstance()-getVisibleOrigin(); /

bool HelloWorld::init()
{
//////////////////////////////
// 1. super init first
if ( !Layer::init() )
{
return false;
}

Size visibleSize = Director::getInstance()->getVisibleSize();
Vec2 origin = Director::getInstance()->getVisibleOrigin();

//正方形
auto rect=DrawNode::create();
rect->drawRect(Vec2(0,0),Vec2(300,300),Color4F(1.0,1.0));

//点
auto dot = DrawNode::create();
dot->drawDot(Vec2(0,10,1.0,1.0));

addChild(rect);
rect->addChild(dot);

rect->setPosition(visibleSize / 2);
dot->setPosition(Vec2(10,10));//本地空间

rect->setContentSize(Size(300,300));
rect->setAnchorPoint(Vec2(0.5,0.5));

schedule([dot,rect](float f){
rect->setRotation(rect->getRotation() + 1);

auto p = dot->convertToWorldSpace(Vec2(0,0));
CCLOG("%f,%f",p.x,p.y);

},"Test");

return true;

}

（编辑：李大同）

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