cocos2d js 3.2 技能冷却按钮的简单实现

一个简单的技能冷却按钮的实现

var CoolButton = cc.Node.extend({	// 需要做成Node 否则会无法addchild
	callback : null,	// 点击后的回调
	coolInterval : null,	// 动画时间
	progressCooling : null,	// 进度条
	sprNormal : null,
	sprStencil : null,
	menuBtn : null,
	ctor : function(resNormal, resPressed, resStencil, coolInterval, callback) {
		this._super();
		
		this.callback = callback;
		this.coolInterval = coolInterval;
		
		// menu item
		var btnItem = new cc.MenuItemImage(
				resNormal,
				resPressed,
				this.onBtnClick,
				this);

		// menu 默认在画面中间
		this.menuBtn = new cc.Menu(btnItem);
		this.menuBtn.attr({
			x : 0,
			y : 0
		});
		this.addChild(this.menuBtn, 0);
		
		// 图片覆盖在按钮上  造成无法点击的假象
		this.sprNormal = new cc.Sprite(resNormal);
		this.sprNormal.attr({
			x : 0,
			y : 0
		});
		this.addChild(this.sprNormal, 1);
		this.sprStencil = new cc.Sprite(resStencil);
		this.sprStencil.attr({
			x : 0,
			y : 0
		});
		this.addChild(this.sprStencil, 2);
		
		
		this.progressCooling = new cc.ProgressTimer(this.sprNormal);
		this.progressCooling.setType(cc.ProgressTimer.TYPE_RADIAL);
		this.progressCooling.setPercentage(0);	// 回复到0
		this.progressCooling.attr({
			x : 0,
			y : 0
		});
		this.addChild(this.progressCooling, 5);
		
		this.progressCooling.setVisible(false);
		this.sprNormal.setVisible(false);
		this.sprStencil.setVisible(false);
	},
	onBtnClick : function() {
		// 设置按钮不可按
		this.menuBtn.setVisible(false);
		// 开始倒计时
		this.progressCooling.setVisible(true);
		this.sprNormal.setVisible(true);
		this.sprStencil.setVisible(true);
		this.progressCooling.runAction(cc.sequence(cc.progressTo(this.coolInterval, 100), 
				cc.callFunc(this.coolEndCallback, this)));
		
		// 调用回调
		this.runAction(cc.callFunc(this.callback, this));
	},
	coolEndCallback : function() {
		this.menuBtn.setVisible(true);
		
		this.progressCooling.setVisible(false);
		this.progressCooling.setPercentage(0);	// 回复到0
		this.sprNormal.setVisible(false);
		this.sprStencil.setVisible(false);
	}
});

调用示例：

var btn = new CoolButton(res.SkillNormal_png, res.SkillPressed_png, res.SkillStencil_png,
				4, this.skill);

参数依次为：

普通状态图片资源，按下状态图片资源，遮罩层图片资源，冷却时间，按钮按下回调