车轮网格与旋转和转向动画冲突

Question

我正在使用 Unity 开发汽车控制器，在应用旋转和转向动画时我遇到了车轮网格问题。这些动画是在适当的位置发生的，而不是在向前移动汽车对象时发生的。

当我尝试同时旋转车轮和转向时，车轮网格似乎无法同时处理这两个动画。当启用 AnimateWheelMeshes 方法时，转向动画似乎覆盖了两个前轮网格的旋转动画。

我正在为轮子网格和 WheelColliders 使用单独的游戏对象。当我尝试直接根据 WheelCollider 的旋转为车轮网格的旋转设置动画时，我希望前轮网格在转向时旋转。然而，这种方法导致与旋转动画冲突，似乎导致它被覆盖。

这是我的“carcontrolled”脚本的相关代码，带有注释以提供详细信息。似乎导致问题的方法是 AnimateWheelMeshes()。

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class carcontrolled : MonoBehaviour
{

    public GameObject frontLeftMesh;
    public WheelCollider frontLeftCollider;
    [Space(10)]
    public GameObject frontRightMesh;
    public WheelCollider frontRightCollider;
    [Space(10)]
    public GameObject rearLeftMesh;
    public WheelCollider rearLeftCollider;
    [Space(10)]
    public GameObject rearRightMesh;
    public WheelCollider rearRightCollider;
    public float steeringAngle = 30f;
    public float rotationSpeed = 2f;
    public float acceleration = 5f;
    public float maxSpeed = 30f;
    
    public float sideMovementSpeed = 5f;
    
    public float currentSpeed;
    
    
    private void Update()
    {
        HandleInput();
        // If you comment out the following method all wheels will spin in place.
        // If you leave method uncommented the front wheel meshes will rotate left to right but not spin.
        AnimateWheelMeshes(); 
        
    }
    
    private void HandleInput()
    {
        // Get input from the Vertical and Horizontal axes (e.g. W/S or Up/Down arrow keys and A/D or Left/Right arrow keys)
        float verticalInput = Input.GetAxis("Vertical");
        float horizontalInput = Input.GetAxis("Horizontal");
    
        // If there is vertical input (i.e. accelerating or braking)
        if (verticalInput != 0)
        {
            // Update the current speed based on the input and acceleration, taking the time since the last frame into account
            currentSpeed += verticalInput * acceleration * Time.deltaTime;
            // Clamp the current speed between -maxSpeed (reverse) and maxSpeed (forward)
            currentSpeed = Mathf.Clamp(currentSpeed, -maxSpeed, maxSpeed);
        }
        // If there is no vertical input (i.e. not accelerating or braking)
        else
        {
            // Gradually move the current speed towards 0 (stop) with the given acceleration
            currentSpeed = Mathf.MoveTowards(currentSpeed, 0, acceleration * Time.deltaTime);
        }
    
        // Call the Steer method to handle the steering input and apply it to the car, using the current speed
        Steer(horizontalInput, currentSpeed);
    }
    
    
    private void Steer(float steeringInput, float speed)
    {
        // Spins the wheels in place when vertical input axis is pressed
        float rotationAngle = speed * Time.deltaTime * 360f;
        Quaternion spinRotation = Quaternion.Euler(rotationAngle, 0, 0);
    
        frontLeftMesh.transform.localRotation = frontLeftMesh.transform.localRotation * spinRotation;
        frontRightMesh.transform.localRotation = frontRightMesh.transform.localRotation * spinRotation;
        rearLeftMesh.transform.localRotation = rearLeftMesh.transform.localRotation * spinRotation;
        rearRightMesh.transform.localRotation = rearRightMesh.transform.localRotation * spinRotation;
    
        // Rotates colliders from left to right when horizontal input axis is pressed
        float targetAngle = steeringAngle * steeringInput;
        frontLeftCollider.steerAngle = Mathf.Lerp(frontLeftCollider.steerAngle, targetAngle, Time.deltaTime * rotationSpeed);
        frontRightCollider.steerAngle = Mathf.Lerp(frontRightCollider.steerAngle, targetAngle, Time.deltaTime * rotationSpeed);
    
        // Steers the car object from left to right when horizontal input axis is pressed
        Vector3 sideMovement = transform.right * steeringInput * sideMovementSpeed * Time.deltaTime;
        transform.position = Vector3.Lerp(transform.position, transform.position + sideMovement, Time.deltaTime);
    
    }
    
    void AnimateWheelMeshes()
    {
        // This method matches the mesh rotation with the rotation of the colliders. When this method is enabled it causes the issue.
    
        Quaternion FLWRotation;
        Vector3 FLWPosition;
        frontLeftCollider.GetWorldPose(out FLWPosition, out FLWRotation);
        frontLeftMesh.transform.position = FLWPosition;
    
        // The following line when added causes the issue directly
        frontLeftMesh.transform.rotation = FLWRotation;
    
        Quaternion FRWRotation;
        Vector3 FRWPosition;
        frontRightCollider.GetWorldPose(out FRWPosition, out FRWRotation);
        frontRightMesh.transform.position = FRWPosition;
    
        // The following line when added causes the issue directly
        frontRightMesh.transform.rotation = FRWRotation;
    
    }

}