求助：实例化对象不沿iTween路径移动的修复方法

我已完成以下操作：

• 实例化一个新的对象预制体
• 设置预制体Transform组件的所有变量
• 将可正常工作的初始胶囊体脚本复制到预制体生成脚本中

但实例化的预制体始终无法沿路径移动，请问如何让它们沿路径移动？

相关代码 #

PathFollower.cs #

public class PathFollower : MonoBehaviour
{
    public float movementSpeed;
    //private float pathProgress = 0;
    public GameObject objectToSpawn;
    public Transform[] positionPoint;
    [Range(0,1)]
    public float value;

    void Start()
    {
        Debug.Log(iTween.PathLength(positionPoint));
    }
    void Update()
    {
        movementSpeed = 10f;
        if (value < 1)
        {
            value += Time.deltaTime / movementSpeed;
        }
        iTween.PutOnPath(objectToSpawn, positionPoint, value);
    }
    private void OnDrawGizmos()
    {
        iTween.DrawPath(positionPoint,Color.green);
    }
}

deployCapsule.cs #

public class deployCapsule : MonoBehaviour
{
    public float movementSpeed;
    public Transform[] positionPoint;
    public GameObject CapsulePrefab;
    [Range(0, 1)]
    public float value;
    //movementspeed = 10f;

    // Start is called before the first frame update
    void Start()
    {

    }


    void Update()
    {
        GameObject a = Instantiate(CapsulePrefab) as GameObject;
        a.transform.position = Camera.main.ScreenToWorldPoint(new Vector3(Screen.width - 20, Screen.height - 20, 10));
        a.GetComponent<PathFollower>().positionPoint = positionPoint;
        movementSpeed = 10f;
        if (value < 1)
        {
            value += Time.deltaTime / movementSpeed;
        }
        iTween.PutOnPath(a, positionPoint, value);
    }
}

脚本挂载及配置截图 #

• Main Camera挂载deployCapsule：
• Capsule挂载PathFollower：
• Capsule Prefab挂载PathFollower：

1. 修复PathFollower脚本（让组件控制自身移动） #

原脚本错误地尝试移动外部对象objectToSpawn，改为控制自身移动，同时优化逻辑健壮性：

public class PathFollower : MonoBehaviour
{
    public float movementSpeed = 10f;
    public Transform[] positionPoint;
    [Range(0,1)]
    private float value; // 改为私有，避免外部干扰

    void Start()
    {
        if(positionPoint != null && positionPoint.Length > 0)
        {
            Debug.Log(iTween.PathLength(positionPoint));
        }
    }

    void Update()
    {
        // 仅在路径点有效且未走完时执行移动
        if (value < 1 && positionPoint != null && positionPoint.Length > 0)
        {
            value += Time.deltaTime / movementSpeed;
            iTween.PutOnPath(gameObject, positionPoint, value);
        }
    }

    private void OnDrawGizmos()
    {
        if(positionPoint != null && positionPoint.Length > 0)
        {
            iTween.DrawPath(positionPoint, Color.green);
        }
    }
}

2. 修复deployCapsule脚本（仅负责生成和初始化） #

原脚本每帧生成大量胶囊且越权处理移动逻辑，改为仅生成对象并传递必要参数：

public class deployCapsule : MonoBehaviour
{
    public float spawnInterval = 2f; // 可选：设置生成间隔，避免瞬间生成过多对象
    public Transform[] positionPoint;
    public GameObject CapsulePrefab;
    private float spawnTimer;

    void Update()
    {
        spawnTimer += Time.deltaTime;
        // 按间隔生成，也可改为`Input.GetKeyDown(KeyCode.Space)`实现按空格生成
        if(spawnTimer >= spawnInterval)
        {
            SpawnCapsule();
            spawnTimer = 0;
        }
    }

    void SpawnCapsule()
    {
        GameObject newCapsule = Instantiate(CapsulePrefab);
        newCapsule.transform.position = Camera.main.ScreenToWorldPoint(new Vector3(Screen.width - 20, Screen.height - 20, 10));
        // 给新生成的胶囊传递路径点参数
        PathFollower follower = newCapsule.GetComponent<PathFollower>();
        follower.positionPoint = positionPoint;
        // 可选：直接设置移动速度
        // follower.movementSpeed = 15f;
    }
}

3. 验证配置 #

• 确保Capsule Prefab上的PathFollower组件中positionPoint无需提前赋值，由生成脚本动态传递
• 确认deployCapsule中的positionPoint数组已正确配置路径点

内容的提问来源于stack exchange，提问作者Thrillasel