关于#unity#的问题，请各位专家解答！(语言-c#)

按下ad键胶囊体上下跑，代码如下
public class PlayerMovement : MonoBehaviour
{
[Header("Movement")]
public float moveSpeed;

public float groundDrag;

public float jumpForce;
public float jumpCooldown;
public float airMultiplier;
bool readyToJump;

[Header("Keybinds")]
public KeyCode jumpKey = KeyCode.Space;

[Header("Ground Check")]
public float playerHeight;
public LayerMask whatIsGround;
bool grounded;

public Transform orientation;

float horizontalInput;
float verticalInput;

Vector3 moveDirection;

Rigidbody rb;

private void Start()
{
    rb = GetComponent<Rigidbody>();
    rb.freezeRotation = true;
}

private void Update()
{
    // ground check
    grounded = Physics.Raycast(transform.position,Vector3.down,playerHeight * 0.5f + 0.2f,whatIsGround);

    MyInput();
    SpeedControl();
    if(grounded)
    rb.drag = groundDrag;
    else
    rb.drag = 0;
}

private void FixedUpdate()
{
    MovePlayer();
}

private void MyInput()
{
    horizontalInput = Input.GetAxis("Horizontal");
    verticalInput = Input.GetAxis("Vertical");
    

    //when to jump
    if(Input.GetKey(jumpKey) && readyToJump && grounded)
    {
        readyToJump = false;

        Jump();

        Invoke(nameof(ResetJump), jumpCooldown);
    }
}

private void MovePlayer()
{
    // calculate movement direction
    moveDirection = orientation.forward * verticalInput + orientation.right * horizontalInput;

    // on grand
    if(grounded)
        rb.AddForce(moveDirection.normalized * moveSpeed * 10f,ForceMode.Force);
    //in air
    else if(!grounded)
        rb.AddForce(moveDirection.normalized * moveSpeed * 10f *airMultiplier, ForceMode.Force);    
}

private void SpeedControl()
{
    Vector3 flatVel = new Vector3(rb.velocity.x, 0f, rb.velocity.z);

    if(flatVel.magnitude > moveSpeed)
    {
        Vector3 limitedVel = flatVel.normalized * moveSpeed;
        rb.velocity = new Vector3(limitedVel.x, rb.velocity.y, limitedVel.z);
    }
}

private void Jump()
{
    //reset y velocity
    rb.velocity = new Vector3(rb.velocity.x, 0f, rb.velocity.z);

    rb.AddForce(transform.up * jumpForce, ForceMode.Impulse);
}
private void ResetJump()
{
    readyToJump = true;
}

}

放了一堆代码，问题是什么
你是想按下AD左右跑是吗
那么先看输入设置，ADWS到底对应的是什么，确定没有设置错了
再看你要控制的对象默认方向是什么
forward 是物体的前，跟你摄像机看到的前不是一个概念

• 这篇博客: Unity数字孪生开发笔记——轿厢基本运动实现中的 2>普通C#动画类 部分也许能够解决你的问题, 你可以仔细阅读以下内容或跳转源博客中阅读:
  
• • 目前遇到问题----如何将同一个动画正播后停止在最后一帧，在过几秒钟后将该动画倒播回去

  using System.Collections;
  using System.Collections.Generic;
  using UnityEngine;
  
  /// <summary>
  /// 动画行为类，提供有关动画的行为
  /// </summary>
  public class Animations 
  {
      //附加在敌人模型上的动画组件引用
      private Animation anim;
  
      /// <summary>
      /// 创建动画行为类
      /// </summary>
      /// <param name="anim">附加在敌人模型上的动画组件引用</param>
      public Animations(Animation anim)
      {
          this.anim = anim;
      }
  
      //播放动画
      public void Play(string animName)
      {
          //anim.CrossFade(animName);
          anim.Play(animName);
      }
  
      /// <summary>
      /// 判断指定动画是否正在播放
      /// </summary>
      /// <param name="animName">动画片段名称</param>
      /// <returns></returns>
      public bool IsPlaying(string animName)
      {
          return anim.IsPlaying(animName);
      }
  }