cocos2d中的坐标系统

cocos2d中Layer的默认锚点是left、buttom

sprite的锚点设置

setAnchorPoint(cc.p(0.5,0.5));  

默认锚点：中心

setAnchorPoint(cc.p(0,0));  

锚点：left、bottom(左下角)

setAnchorPoint(cc.p(0,1));  

锚点：left、top（左上角） 

setAnchorPoint(cc.p(1,0));  

锚点：right、bottom（右下角）

setAnchorPoint(cc.p(1,1));  

锚点：right、top（右上角）

var AnchorPointCenter = new cc.Point(0.5, 0.5);
var AnchorPointTop = new cc.Point(0.5, 1);
var AnchorPointTopRight = new cc.Point(1, 1);
var AnchorPointRight = new cc.Point(1, 0.5);
var AnchorPointBottomRight = new cc.Point(1, 0);
var AnchorPointBottom = new cc.Point(0.5, 0);
var AnchorPointBottomLeft = new cc.Point(0, 0);
var AnchorPointLeft = new cc.Point(0, 0.5);
var AnchorPointTopLeft = new cc.Point(0, 1);