// 抖动 动画
cc.Shake = cc.ActionInterval.extend({
_initial_x : 0,
_initial_y : 0,
_strength_x : 0,
_strength_y : 0,
/**
* 创建抖动动画
* @param {number} duration 动画持续时长
* @param {number} strength_x 抖动幅度: x方向
* @param {number} strength_y 抖动幅度: y方向
* @returns {Shake}
*/
ctor:function(duration,strength_x,strength_y){
cc.ActionInterval.prototype.ctor.call(this);
this.initWithDuration( duration,strength_x,strength_y);
},
initWithDuration(duration,strength_x,strength_y) {
cc.ActionInterval.prototype.initWithDuration.call(this, duration)
this._strength_x = strength_x;
this._strength_y = strength_y;
return true;
},
update()
{
let randx = Math.randomInt(-this._strength_x,this._strength_x);
let randy = Math.randomInt(-this._strength_y,this._strength_y);
this.getTarget().setPosition(randx + this._initial_x,randy + this._initial_y);
},
startWithTarget(target)
{
cc.ActionInterval.prototype.startWithTarget.call(this, target);
this._initial_x = target.x;
this._initial_y = target.y;
},
stop()
{
this.getTarget().setPosition(new cc.Vec2(this._initial_x,this._initial_y));
cc.ActionInterval.prototype.stop.call(this);
},
});
cc.shake = function (duration,strength_x,strength_y) {
return new cc.Shake(duration,strength_x,strength_y);
};
cocoscreator 抖动动画
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转载自blog.csdn.net/huyonghong2012/article/details/81457411
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