全局的Touch事件

const{ccclass}=cc._decorator;
@ccclass
export default class GlobalTouchInput extends cc.Component{private _eventManager=cc["internal"]["eventManager"];private _touchListener:any;private start():void{       const self=this;const EventListener=cc["EventListener"];this._touchListener=EventListener.create({event:EventListener.TOUCH_ONE_BY_ONE,swallowTouches:false,owner:self.node,mask:null,onTouchBegan:self.onTouchStart,onTouchMoved:self.onTouchMoved,onTouchEnded:self.onTouchEnded,onTouchCancelled:self.onTouchCancelled});this._eventManager.addListener(this._touchListener,this.node);}private onTouchStart(touch:cc.Touch,event:cc.Event.EventTouch):boolean{cc.log("touch start");//此处必须返回true（表示接触到了节点）,否则TOUCH_MOVE,TOUCH_END,TOUCH_CANCEL不触发。return true;}private onTouchMoved(touch:cc.Touch,event:cc.Event.EventTouch):void{cc.log("touch move");}private onTouchEnded(touch:cc.Touch,event:cc.Event.EventTouch):void{cc.log("touch end");}private onTouchCancelled(touch:cc.Touch,event:cc.Event.EventTouch):void{cc.log("touch cancel");}private onDestroy():void{this._eventManager.removeListener(this._touchListener,this.node);}}

touch穿过透明区域（以下代码未验证）

const {ccclass,property}=cc._decorator;@ccclass
export default class CrossTransparentTouch extends cc.Component{private start():void{this.node.on(cc.Node.EventType.TOUCH_END, this.onTouchEnd,this)this.node["_hitTest"]=this.hitTest.bind(this);}private hitTest(point:cc.Vec2){let locationInNode=this.node.convertToNodeSpaceAR(point);let size=this.node.getContentSize();let sprite=this.node.getComponent(cc.Sprite);if(sprite){//需要在编辑设置 texture.packable 为 falselet imgObj=sprite.spriteFrame.getTexture().getHtmlElementObj();return this.onLucencyTouch(imgObj, locationInNode.x, size.height-locationInNode.y);}return false;}private onLucencyTouch(img:HTMLImageElement,x:number,y:number):boolean{let cvs=document.createElement("canvas");let ctx=cvs.getContext('2d');cvs.width=1;cvs.height=1;ctx.drawImage(img,x,y,1,1,0,0,1,1);let imgdata=ctx.getImageData(0,0,1,1);return imgdata.data[3]>0;}private onTouchEnd(eventTouch:cc.Event.EventTouch):void{console.log("touch end")}
}