如何在点击时替换SKSpriteNode的图像

import SpriteKit

class GameScene: SKScene {
    var spriteNode: SKSpriteNode!
    
    override func didMove(to view: SKView) {
        // 创建SKSpriteNode对象，并设置初始图像
        spriteNode = SKSpriteNode(imageNamed: "image1")
        spriteNode.position = CGPoint(x: frame.midX, y: frame.midY)
        addChild(spriteNode)
        
        // 添加点击手势识别器
        let tapGesture = UITapGestureRecognizer(target: self, action: #selector(handleTap(_:)))
        view.addGestureRecognizer(tapGesture)
    }
    
    @objc func handleTap(_ gesture: UITapGestureRecognizer) {
        // 获取点击位置的坐标
        let location = gesture.location(in: self)
        
        // 判断点击位置是否在SKSpriteNode的范围内
        if spriteNode.contains(location) {
            // 替换SKSpriteNode的图像
            let newTexture = SKTexture(imageNamed: "image2")
            spriteNode.texture = newTexture
        }
    }
}