How you can change the processing order Node Occasion System? – Cocos Creator

I’ve 3 sprites, with the assistance of a script I alter the rendering order and drag the sprites one on prime of the opposite in reverse order.
The sprite that was on the backside is obtained from above. However while you click on on this stack once more, it’s not potential to take the highest sprite.
Please inform me how can I remedy this downside. I didn’t discover a answer on the discussion board.

import { _decorator, Part, Node, enter, Enter, Occasion, Vec2, Label, KeyCode, EventMouse, EventTarget} from ‘cc’;
import{GameManager} from “./GameManager”;
const { ccclass, property } = _decorator;

@ccclass(‘TouchDragger’)
export class TouchDragger extends Part {

onLoad() {
  
    this.node.on(Node.EventType.TOUCH_START, (occasion) => { 
    console.log('Contact begin');
    
    occasion.propagationStopped = true;
    
    this.node.setSiblingIndex(2);

    }, this);

    this.node.on(Node.EventType.TOUCH_MOVE, (occasion) => { 
      
    this.node.setPosition(this.node.getPosition().x + occasion.contact.getDelta().x , this.node.getPosition().y + occasion.contact.getDelta().y, 0);
   
    }, this);

    this.node.on(Node.EventType.TOUCH_END, (occasion) => { 
    console.log('Contact finish');

    occasion.propagationStopped = false;
    }, this);

}