【Unity】第三人称移动&动画控制器、摄像机跟随

1. 第三人称移动&动画控制器

第三人称移动&动画控制器参考视频

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Timeline;

/// <summary>
/// 移动
/// </summary>

public class Move : MonoBehaviour
{
    
    
    private Animator _animator;
    private Rigidbody _rb;
    public float walkSpeed;
    public float runSpeed;

    private float currentSpeed;
    private float horizontal;
    private float vertical;

    //是否处于跑步态
    private bool isRunning;

    private bool isJumping;
    private bool isGrounded = true;

    private Vector3 _direction;

    //初始化
    void Start()
    {
    
    
        //获取组件
        _animator=GetComponent<Animator>();
        _rb=GetComponent<Rigidbody>();

        walkSpeed = 2.0f;
        runSpeed = 4.0f;
    }

    //获取输入
    void Update()
    {
    
    
        horizontal = Input.GetAxis("Horizontal");
        vertical = Input.GetAxis("Vertical");
        if (Input.GetKeyDown(KeyCode.LeftShift)){
    
    
            isRunning = true;
        }
        if (Input.GetKeyUp(KeyCode.LeftShift)){
    
    
            isRunning = false;
        }

        if (Input.GetKeyDown(KeyCode.Space))
        {
    
    
            _animator.SetTrigger("jump");
            isJumping = true;
        }
        else
        {
    
    
            isJumping = false;
        }
    }

    private void LateUpdate()
    {
    
    
        if (isJumping)
        {
    
    
            if (isGrounded == true)
            {
    
    
                _rb.velocity += new Vector3(0, 1, 0); //添加加速度
                _rb.AddForce(Vector3.up * 5, ForceMode.VelocityChange); //给刚体一个向上的力，力的大小为Vector3.up*mJumpSpeed
                isGrounded = false;
            }
                
        }
    }
    //对刚体的操作,放入FixedUpdate
    private void FixedUpdate()
    {
    
    
        //获取方向
        _direction=new Vector3(horizontal, 0, vertical).normalized;//获取标准向量的方向
        
        //用户有输入时旋转加移动
        if (_direction.magnitude >0)//magnitude：向量长度
        {
    
    
            //旋转
            transform.rotation=Quaternion.LookRotation(_direction,Vector3.up);

            //移动
            Vector3 p = transform.position;//获取到当前的位置
            if(isRunning)
            {
    
    
                p += _direction * runSpeed * Time.deltaTime;
            }
            else
            {
    
    
                p += _direction * walkSpeed * Time.deltaTime;
            }
            //使用刚体移动
            _rb.MovePosition(p);
        }

        if (isRunning)
        {
    
    
            currentSpeed = new Vector3(horizontal, 0, vertical).magnitude * runSpeed;
        }
        else
        {
    
    
            currentSpeed = new Vector3(horizontal, 0, vertical).magnitude * walkSpeed;
        }
        _animator.SetFloat("speed", currentSpeed);
    }
    // 落地检测（若不在地面不进行第二次跳跃）
    void OnCollisionEnter(Collision collision)
    {
    
    
        _animator.SetBool("jump", false);
        isGrounded = true;
    }
}

2. 摄像机跟随

1. 虚拟摄像机

1. Window–>Package Manage 下载组件Cinemachine
2. 在场景中创建虚拟摄像机
3. 右键选择Cinemachine
4. 双击虚拟摄像机
   
5. 将 Follow 和 Look At 挂载上玩家
   
6. 将 Body调为 Transposer
   
7. 将 Binging Mode 调整为World Space
   
8. 调整参数，找到最合适的位置
   
9. 效果 —— 能够达到 45° 角度跟随
   

2. 编写代码相机跟随

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class CameraFollow : MonoBehaviour
{
    
    
    private Vector3 offset;//记录相机和主角的位置偏移
    private Transform playerTransform;//获取玩家位置

    void Stat()
    {
    
    
        playerTransform = GameObject.FindGameObjectWithTag("Player").transform;//寻找Player标签的物体作为跟随对象
        offset = transform.position - playerTransform.position;
    }

    void Update()
    {
    
    
        transform.position = playerTransform.position + offset;
    }
}

效果同上述虚拟摄像机方法。