玩家物体弹跳进入太空

我正在尝试制作一款类似《Gang Beasts》《Fall Guys》的物理驱动移动游戏。我遇到的问题是（在骨骼上使用 Configurable Joint）玩家从平台上方 spawn 后会掉落，但他的腿像瘸腿一样（可以移动但没有腿支撑），于是我向 Gemini AI 求助，粘贴他的脚本后，玩家物体现在从天空坠落，撞地后会被弹射 200 米高空。请问有谁能帮我找出问题并帮我修复？另外，我忘记提到我有些骨骼重叠，但它们没有 colliders 和 Configurable Joint，我使用了 Unity 的 ragdoll 系统。

using UnityEngine;

public class PlayerController : MonoBehaviour
{
[Header("Physics & Movement")]
public Rigidbody hipsRigidbody;
public float moveSpeed = 800f;
public float jumpForce = 2000f;

[Header("Camera & Look")]
public Transform cameraTransform;
public float mouseSensitivity = 200f;
public float minPitch = -85f;
public float maxPitch = 85f;

[Header("Ground Check")]
public Transform groundCheck;
public float groundDistance = 0.8f;
public LayerMask groundMask;

private float pitch = 0f;
private float yaw = 0f;
private bool isGrounded;

void Start()
{
    Cursor.lockState = CursorLockMode.Locked;
    Cursor.visible = false;

    if (hipsRigidbody != null)
    {
        hipsRigidbody.constraints = RigidbodyConstraints.FreezeRotationX | RigidbodyConstraints.FreezeRotationZ;
    }
}

void Update()
{
    // 确保整个模型和摄像机跟随骨盆的实际位置
    if (hipsRigidbody != null)
    {
        transform.position = hipsRigidbody.position;
    }

    float mouseX = Input.GetAxis("Mouse X") * mouseSensitivity * Time.deltaTime;
    float mouseY = Input.GetAxis("Mouse Y") * mouseSensitivity * Time.deltaTime;

    yaw += mouseX;
    pitch -= mouseY;
    pitch = Mathf.Clamp(pitch, minPitch, maxPitch);

    if (cameraTransform != null)
    {
        cameraTransform.localRotation = Quaternion.Euler(pitch, yaw, 0f);
    }

    if (hipsRigidbody != null)
    {
        hipsRigidbody.MoveRotation(Quaternion.Euler(0f, yaw, 0f));
    }

    if (groundCheck != null)
    {
        isGrounded = Physics.CheckSphere(groundCheck.position, groundDistance, groundMask);
    }

    if (Input.GetButtonDown("Jump") && isGrounded)
    {
        hipsRigidbody.AddForce(Vector3.up * jumpForce, ForceMode.Impulse);
    }
}

void FixedUpdate()
{
    if (hipsRigidbody == null) return;

    float x = Input.GetAxis("Horizontal");
    float z = Input.GetAxis("Vertical");

    Vector3 moveDir = (transform.right * x + transform.forward * z).normalized;

    if (moveDir.magnitude > 0.1f)
    {
        Vector3 targetVelocity = moveDir * (moveSpeed * Time.fixedDeltaTime);
        hipsRigidbody.AddForce(targetVelocity, ForceMode.VelocityChange);
    }
}

}