需要实现功能

增加角色的奔跑动画

知识点

public static float Lerp (float a, float b, float t);

在 a 与 b 之间按 t 进行线性插值。

参数 t 限制在范围 [0, 1] 内。

在t时间内，将 a 变换到 b

完整代码

在 SimpleMove 中 修改即可

using UnityEngine;

public class SimpleMove : MonoBehaviour
{
    private Rigidbody _rigidbody;

    [Header("角色方向控制变量")] [SerializeField] private Vector2 moveDir = Vector2.zero; //移动方向
    [SerializeField] private Vector2 moveDirNormalized = Vector2.zero;
    [SerializeField] private float targetDir = 0f; //角色目标方向
    [SerializeField] private float moveSpeed = 0f;
    [SerializeField] private float walkSpeed = 2f; //行走速度
    [SerializeField] private float runSpeed = 6f;
    [SerializeField] private bool isRunning = false;
    private float _smoothTime = 0.1f;
    private float _currentVelocity = 0f;
    private float _vMove = 0f;
    private float _hMove = 0f;

    [Header("键盘输入控制")] [SerializeField] private KeyCode keyA = KeyCode.LeftShift;
    [SerializeField] private KeyCode keyB = KeyCode.None;
    [SerializeField] private KeyCode keyC = KeyCode.None;
    [SerializeField] private KeyCode keyD = KeyCode.None;


    private void Awake()
    {
        _rigidbody = GameObject.Find("MainPlayer").GetComponent<Rigidbody>();
    }

    private void Update()
    {
        _hMove = Input.GetAxis("Horizontal");
        _vMove = Input.GetAxis("Vertical");
        SetMoveDir();
        SetRun();
        SimpleMsgMechanism.SendMsg("PlayerMove",
            Mathf.Sqrt(_hMove * _hMove + _vMove * _vMove),isRunning);
    }

    private void FixedUpdate()
    {
        PlayerMove();
    }

    /// <summary>
    /// 设置朝向
    /// </summary>
    void SetMoveDir()
    {
        moveDir = new Vector2(_hMove, _vMove); //获取到输入的值
        moveDirNormalized = moveDir.normalized; //将值归一化
        targetDir = Mathf.Atan2(moveDirNormalized.x, moveDirNormalized.y) * Mathf.Rad2Deg; //计算朝向目标的角度
        if (moveDirNormalized != Vector2.zero) //当输入的值不为0时，转向目标角度
        {
            _rigidbody.transform.eulerAngles =
                Vector3.up * Mathf.SmoothDampAngle(_rigidbody.transform.eulerAngles.y, targetDir,
                    ref _currentVelocity, _smoothTime);
        }
    }

    /// <summary>
    /// 角色移动
    /// </summary>
    void PlayerMove()
    {
        moveSpeed = isRunning ? runSpeed : walkSpeed;
        _rigidbody.velocity = new Vector3(moveSpeed * _hMove, 0, moveSpeed * _vMove);
    }

    /// <summary>
    /// 设置角色奔跑
    /// </summary>
    void SetRun()
    {
        isRunning = Input.GetKey(keyA);
    }
}

在SimpleMoveAni中修改即可

using UnityEngine;

public class SimpleMoveAni : MonoBehaviour
{
    private Animator _animator;

    void Awake()
    {
        _animator = GameObject.Find("MainPlayer/Player").GetComponent<Animator>();
    }

    void Update()
    {
        SetMoveAni();
    }

    /// <summary>
    /// 设置移动动画
    /// </summary>
    void SetMoveAni()
    {
        SimpleMsgMechanism.ReceiveMsg("PlayerMove", msg =>
        {
            object[] objects = (object[]) msg;
            float move = (float) objects[0];
            bool isRun = (bool) objects[1];
            _animator.SetFloat("ForwardMove",
                move * (isRun
                    ? (Mathf.Lerp(_animator.GetFloat("ForwardMove"), 2f, 0.1f))
                    : Mathf.Lerp(_animator.GetFloat("ForwardMove"), 1f, 0.1f)));
        });
    }
}

参考链接

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UnitySir (bilibili)

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