倒计时器的代码封装

来源：互联网发布：linux 中文文件名乱码编辑：程序博客网时间：2024/05/21 15:45
/** * 在Scene里添加  this.addChild(new TimeCount()) * 使用美术字的倒计时   需要 fnt文件预加载 * 美术字的名字注意修改 * 使用的时候通过 * cc.eventManager.dispatchCustomEvent(USER_TIME_COUNT_SET_TIME, 5) 设置倒计时时间 * cc.eventManager.dispatchCustomEvent(USER_TIME_COUNT_START) 使得倒计时开启 * cc.eventManager.dispatchCustomEvent(USER_TIME_COUNT_STOP)  使得倒计时暂停 * * 在需要得到倒计时结束的类里去 * cc.eventManager.addCustomListener(USER_TIME_COUNT_FINISH, function(event){        cc.log('app 获取了定时器传回的结束')    }) */var USER_TIME_COUNT_SET_TIME = "USER_TIME_COUNT_SET_TIME"   //设置倒计时时间var USER_TIME_COUNT_START = "USER_TIME_COUNT_START"         //开始倒计时var USER_TIME_COUNT_PAUSE = "USER_TIME_COUNT_PAUSE"           //停止倒计时var USER_TIME_COUNT_FINISH = "USER_TIME_COUNT_FINISH"       //倒计时结束     由定时器抛出var TimeCount = cc.Layer.extend({    EventArr:[USER_TIME_COUNT_SET_TIME, USER_TIME_COUNT_START, USER_TIME_COUNT_PAUSE],    Label_time:null,    Label_Position:null,    Count_Time:0,    ScheduleRun:false,    Start_DateTime:0,    ctor:function(){        this._super()        this.init()    },    init:function(){        this.Label_Position = cc.p(cc.winSize.width*0.8,cc.winSize.height*0.95);       //调整倒计时坐标        this.Label_time = new cc.LabelBMFont("60", res.bo);        /* if(this.Label_time.width <= 0) cc.error('字体文件没有预加载 或 TimeCount模块没有设置正确的BmFont')*/        this.Label_time.setPosition(this.Label_Position)        this.addChild(this.Label_time)        this.scheduleUpdate()        for(var index in this.EventArr){            var event = this.EventArr[index]            cc.eventManager.addCustomListener(event, this.onGetCustom.bind(this))        }    },    onGetCustom:function(event){        var data = event.getUserData();        switch (event.getEventName()){            case USER_TIME_COUNT_SET_TIME:                cc.log('设置了倒计时时间:',data)                this.Count_Time = data                this.Label_time.setString(this.Count_Time)                break            case USER_TIME_COUNT_START:                cc.log('启动了倒计时:')                this.Start_DateTime = Date.now()                this.ScheduleRun = true                break            case USER_TIME_COUNT_PAUSE:                cc.log('停止了倒计时')                this.ScheduleRun = false                break        }    },    update:function(){        if(this.ScheduleRun){            if(Date.now() - this.Start_DateTime>=1000){                this.Count_Time --;                this.Label_time.setString(this.Count_Time)                this.Start_DateTime += 1000                if(0 == this.Count_Time){                    this.timeStop();                    cc.eventManager.dispatchCustomEvent(USER_TIME_COUNT_FINISH)                }            }        }    },    timeStop:function(){        cc.log('倒计时结束了:')        this.ScheduleRun = false    },    onExit:function(){        this.unscheduleUpdate()        this.removeAllChildren(true)        for(var index in this.EventArr){            var event = this.EventArr[index]            cc.eventManager.removeCustomListeners(event)        }    }})
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