Unity -如何在运行时将源代码添加到ParentConstraint

using UnityEngine;

public class DynamicParentConstraint : MonoBehaviour
{
    public Transform targetParent; // 目标父对象
    private Transform originalParent; // 原始父对象
    private bool isConstrained = false;

    void Start()
    {
        originalParent = transform.parent;
    }

    public void ApplyConstraint()
    {
        if (isConstrained)
        {
            RemoveConstraint();
        }
        else
        {
            AddConstraint();
        }
        isConstrained = !isConstrained;
    }

    private void AddConstraint()
    {
        // 保存当前父级
        originalParent = transform.parent;
        // 设置新的父级
        transform.SetParent(targetParent);
        // 应用约束
        var constraint = gameObject.AddComponent<ParentConstraint>();
        constraint.target = targetParent;
    }

    private void RemoveConstraint()
    {
        // 移除约束组件
        Destroy(gameObject.GetComponent<ParentConstraint>());
        // 恢复原始父级
        transform.SetParent(originalParent);
    }
}

private void AddConstraint()
{
    originalParent = transform.parent;
    var localPosition = transform.localPosition;
    var localRotation = transform.localRotation;
    var localScale = transform.localScale;

    transform.SetParent(targetParent);

    transform.localPosition = localPosition;
    transform.localRotation = localRotation;
    transform.localScale = localScale;

    var constraint = gameObject.AddComponent<ParentConstraint>();
    constraint.target = targetParent;
}