【Unity开发小技巧】Unity控制人物行走的几种表现方式

目录

​​一：第三人称视角​​

​​1.左右键旋转，前后键前进后退​​

​​2.鼠标控制自动寻路​​

​​二：第一人称视角​​

​​1.相机设置为玩家子节点​​

​​2.鼠标自由视角CharacterController​​

// Update is called once per frame
    void Update () {
        float ver = Input.GetAxis("Vertical");
        transform.position += transform.forward * ver * Time.deltaTime * 5;

        float hor = Input.GetAxis("Horizontal");
        transform.Rotate(transform.up * hor * Time.deltaTime * 100);
    }
-----------------------------------------------------------------------------
 private void Update()
    {
        if (Input.GetKey(KeyCode.W) | Input.GetKey(KeyCode.UpArrow)) //前
        {
            this.transform.Translate(Vector3.forward * m_speed * Time.deltaTime);
        }
        if (Input.GetKey(KeyCode.S) | Input.GetKey(KeyCode.DownArrow)) //后
        {
            this.transform.Translate(Vector3.forward * -m_speed * Time.deltaTime);
        }
        if (Input.GetKey(KeyCode.A) | Input.GetKey(KeyCode.LeftArrow)) //左
        {
            this.transform.Translate(Vector3.right * -m_speed * Time.deltaTime);
        }
        if (Input.GetKey(KeyCode.D) | Input.GetKey(KeyCode.RightArrow)) //右
        {
            this.transform.Translate(Vector3.right * m_speed * Time.deltaTime);
        }
    }

参考之前的记录Unity的自动寻路NavMessAgent系统（一）_幻世界

左右键旋转，前后键前进后退，相机设置为目标子节点固定相对位置效果如上图

鼠标控制相机旋转，效果如上图

// 控制玩家移动
    void Update () {
        float ver = Input.GetAxis("Vertical");
        transform.position += transform.forward * ver * Time.deltaTime * 5;
    }

控制相机视角
 //鼠标左键控制上下转动
        if (Input.GetMouseButton(0))
        {
            transform.Rotate(-Input.GetAxis("Mouse Y") * 2, 0, 0);
        }
        //鼠标右键控制左右转动
        if (Input.GetMouseButton(1))
        {
            transform.Rotate(0, Input.GetAxis("Mouse X") * 2, 0);
        }

两个脚本，PlayerMovement控制身体的位移，PlayerCamera控制自己的相机的旋转

public class PlayerMovement : MonoBehaviour
{
    public CharacterController controller;
    public float speed = 12f;
    public float gravity = 10f;
    public float jumpHeight = 2f;
    public Transform groundCheck;
    public float groundDistance = 0.4f;
    public LayerMask groundMask;//地面layer
    Vector3 velocity;
    bool isGrounded;//是否落地
    float x;
    float z;
    // Update is called once per frame
    void Update()
    {
        x = Input.GetAxis("Horizontal");
        z = Input.GetAxis("Vertical");
        
        Vector3 move = transform.right * x + transform.forward * z;
        controller.Move(move * speed * Time.deltaTime);

        isGrounded = Physics.CheckSphere(groundCheck.position, groundDistance, groundMask);
        if (isGrounded && velocity.y < 0)
        {
            velocity.y = -2f;
        }

        if (Input.GetButtonDown("Jump") && isGrounded)
        {
            velocity.y = Mathf.Sqrt(jumpHeight  * gravity);
        }
        velocity.y -= gravity * Time.deltaTime;
        controller.Move(velocity * Time.deltaTime);
    }
}

public class PlayerCamera : MonoBehaviour
{
    private float mouseSensitivity = 300;
    private Transform playerBody;
    // Start is called before the first frame update
    void Awake()
    {
        Cursor.lockState = CursorLockMode.Locked;
        playerBody = transform.parent;
    }

    // Update is called once per frame
    void Update()
    {
        float mouseX = Input.GetAxis("Mouse X") * mouseSensitivity * Time.deltaTime;
        playerBody.Rotate(Vector3.up * mouseX);

        float mouseY = Input.GetAxis("Mouse Y") * mouseSensitivity * Time.deltaTime;
        transform.localEulerAngles -= new Vector3(mouseY, 0f, 0f);

    }
}