《开发之旅》学习笔记：重力感应事件

/*  重力感应 事件 */

var AccelerometerLayer = cc.Layer.extend({
ctor: function () {
this._super();

var winSize = cc.director.getWinSize();
var ball = new cc.Sprite(res.CloseNormal_png);
ball.x = winSize.width/2;
ball.y = winSize.height/2;
this.addChild(ball);

if('accelerometer' in cc.sys.capabilities){
cc.inputManager.setAccelerometerInterval(1/30);        //重力感应器的频率
cc.inputManager.setAccelerometerEnabled(true);        //是否允许重力感应器

cc.eventManager.addListener({
event:cc.EventListener.ACCELERATION,callback:function(accelerometerInfo,event){
var target = event.getCurrentTarget();
var pos = {
x:accelerometerInfo.x,y:accelerometerInfo.y,z:accelerometerInfo.z
};

//cc.log(pos);

var w = winSize.width,h = winSize.height;

ball.x += pos.x;
ball.y += pos.y;

                }
            },this);
        }
    }
});

var AccelerometerScene = cc.Scene.extend({
onEnter: function () {
this._super();

var layer = new AccelerometerLayer();
this.addChild(layer);
    }
});