如何让我的相机节点聚焦在点击的节点上？(SceneKit)

import UIKit
import SceneKit

class ViewController: UIViewController {

    var sceneView: SCNView!
    var scene: SCNScene!
    var cameraNode: SCNNode!
    var targetNode: SCNNode!

    override func viewDidLoad() {
        super.viewDidLoad()

        // 创建场景视图
        sceneView = SCNView(frame: view.bounds)
        view.addSubview(sceneView)

        // 创建场景
        scene = SCNScene()
        sceneView.scene = scene

        // 创建相机节点
        cameraNode = SCNNode()
        cameraNode.camera = SCNCamera()
        scene.rootNode.addChildNode(cameraNode)

        // 创建目标节点
        targetNode = SCNNode()
        scene.rootNode.addChildNode(targetNode)

        // 添加点击手势识别器
        let tapGesture = UITapGestureRecognizer(target: self, action: #selector(handleTap(_:)))
        sceneView.addGestureRecognizer(tapGesture)
    }

    @objc func handleTap(_ gesture: UITapGestureRecognizer) {
        // 获取点击位置的屏幕坐标
        let location = gesture.location(in: sceneView)

        // 将屏幕坐标转换为场景中的坐标
        let hitTestResults = sceneView.hitTest(location, options: nil)
        if let result = hitTestResults.first {
            // 获取被点击的节点
            let clickedNode = result.node

            // 设置相机节点的位置和目标点，使其聚焦在被点击的节点上
            cameraNode.position = SCNVector3(x: 0, y: 0, z: 10) // 设置相机位置
            cameraNode.look(at: clickedNode.worldPosition) // 对准被点击的节点
        }
    }
}