小祥子的博客

private drawGrid() { // 绘制
    //指定填充色开始填充
    this.graphics.beginFill(0x000ff);
    //绘制矩形，指定位置和宽高
    this.graphics.drawRect(0, 0, 50, 50);
    //结束填充
    this.graphics.endFill();
    this.graphics.beginFill(0x000ff);
    this.graphics.drawRect(50, 50, 50, 50);
    this.graphics.endFill();
    this.graphics.beginFill(0xff0000);
    this.graphics.drawRect(50, 0, 50, 50);
    this.graphics.endFill();
    this.graphics.beginFill(0xff0000);
    this.graphics.drawRect(0, 50, 50, 50);
    this.graphics.endFill();
}
private onAddToStage(event: egret.Event) {
		var shp: egret.Shape = new egret.Shape();
		shp.graphics.beginFill(0x00ff00);
		shp.graphics.drawRect(0, 0, 100, 100);
		shp.graphics.endFill();

		//改变矩形的位置（左上角顶点）
		shp.x = 100;
		shp.y = 100;

		//修改锚点的位置
		shp.anchorOffsetX = 50;
		shp.anchorOffsetY = 50;
		this.addChild(shp);
}

//通过触摸移动显示对象
	private moveObjectByTouch(): void {
		var draggedObject: egret.Shape;
		var offsetX: number;
		var offsetY: number;

		var circle: egret.Shape = new egret.Shape();
		circle.graphics.beginFill(0xff0000);
		circle.graphics.drawCircle(25, 25, 25);
		circle.graphics.endFill();
		this.addChild(circle);

		circle.touchEnabled = true;
		// circle.addEventListener(egret.TouchEvent.TOUCH_BEGIN, startMove, this);
		circle.addEventListener(egret.TouchEvent.TOUCH_BEGIN, (e: egret.TouchEvent) => {
			//记录手指按到的对象
			draggedObject = e.currentTarget;
			offsetX = e.stageX - circle.x;
			offsetY = e.stageY - circle.y;
			//将触摸的对象置于容器顶层
			this.addChild(draggedObject);
			this.stage.addEventListener(egret.TouchEvent.TOUCH_MOVE, onMove, this);
		}, this);
		circle.addEventListener(egret.TouchEvent.TOUCH_END, stopMove, this);

		function stopMove(e: egret.TouchEvent): void {
			console.log("stopMove");
			this.stage.removeEventListener(egret.TouchEvent.TOUCH_MOVE, onMove, this);
		}
		function onMove(e: egret.TouchEvent): void {
			draggedObject.x = e.stageX - offsetX;
			draggedObject.y = e.stageY - offsetY;
		}
	}