module game {
/**
*Created by 渔歌烟火 on 2018/3/28.
* 字体缓动动画
*/
export class LabelEffect {
private static _instance:LabelEffect;
public static get instance():LabelEffect
{
if( null == LabelEffect._instance )
{
LabelEffect._instance = new LabelEffect();
}
return LabelEffect._instance;
}
/**
* @param target 显示对象
* @param options 例如{ time: 1500,initNum:100,num: 88888, regulator: 50 }
*/
public playEffect(target:any,options:any){
options = options || {};
if(options.initNum==options.num)return;
var time = options.time,//总时间--毫秒为单位
finalNum = options.num, //要显示的真实数值
regulator = options.regulator || 100, //调速器，改变regulator的数值可以调节数字改变的速度
step = (finalNum-options.initNum) / (time / regulator),/*每30ms增加的数值--*/
count = options.initNum, //计数器
initial = options.initNum;
var timer = setInterval(()=> {
count = count + step;
if(count >= finalNum&&options.initNum<finalNum) {
clearInterval(timer);
count = finalNum;
}
if(count <= finalNum&&options.initNum>finalNum) {
clearInterval(timer);
count = finalNum;
}
//t未发生改变的话就直接返回
var t = Math.floor(count);
if(t == initial) return;
initial = t;
target.text = initial+"";
}, 30);
}
}
}
调用：LabelEffect.instance.playEffect(target, { time: 1500, initNum: num, num: score, regulator: 50 })