【Unity】Unity移动，跳跃(这篇使用Rigidbody和CharacterController两种方式)_unity rigidbody与character

1，Rigidbody

using UnityEngine;

public class Move : MonoBehaviour
{
    /// <summary>
    /// 移动速度
    /// </summary>
    public float moveSpeed = 1f;
    /// <summary>
    /// 转弯速度
    /// </summary>
    public float rotateSpeed = 60f;
    /// <summary>
    /// 跳跃力
    /// </summary>
    public float jumpVelocity = 5.0f;

    private float vInput;
    private float hInput;
    private float JInput;

    private Rigidbody _rb;

    /// <summary>
    /// 判断触碰地面
    /// </summary>
    private bool _isGrounded;

    void Start()
    {
        _rb = GetComponent<Rigidbody>();
    }

    void Update()
    {
        vInput = Input.GetAxis("Vertical") * moveSpeed;
        hInput = Input.GetAxis("Horizontal") * moveSpeed;
        if (Input.GetKeyDown(KeyCode.Space))
        {
            //判断是否在地面
            if (!_isGrounded)
            {
                JInput = jumpVelocity;
            }
        }
    }
    void FixedUpdate()
    {

        //跳跃 添加一个向上的瞬间力ForceMode.Impulse，要跳的越高jumpVelocity值就越大
        _rb.AddForce(Vector3.up * JInput, ForceMode.Impulse);
        //执行完Update的 JInput = jumpVelocity，并且上行逻辑执行完毕后 执行 JInput = 0f，物体下落
        JInput = 0f;


        //移动
        if (Mathf.Abs(vInput) != 0 || Mathf.Abs(hInput) != 0)
        {
            _rb.MovePosition(this.transform.position + new Vector3(hInput * Time.fixedDeltaTime, 0, vInput * Time.fixedDeltaTime));
        }

        //旋转
        Vector3 rotation_V = new Vector3(vInput, 0, transform.position.x) * rotateSpeed;
        Vector3 rotation_H = new Vector3(transform.position.z, 0, hInput) * rotateSpeed;


        Quaternion angleRot_V = Quaternion.Euler(rotation_V * Time.fixedDeltaTime);
        Quaternion angleRot_H = Quaternion.Euler(rotation_H * Time.fixedDeltaTime);

        if (Mathf.Abs(vInput) != 0)
        {
            _rb.MoveRotation(_rb.rotation * angleRot_V);
        }
        if (Mathf.Abs(hInput) != 0)
        {
            _rb.MoveRotation(_rb.rotation * angleRot_H);
        }


    }
    /// <summary>
    /// 碰撞检测刚触碰到时_isGrounded = false;可以跳跃 
    /// </summary>
    /// <param name="collision"></param>
    private void OnCollisionEnter(Collision collision)
    {
        if (collision.gameObject.tag.Equals("Grounded"))
        {
            _isGrounded = false;
        }
    }
    /// <summary>
    /// 碰撞检测触碰结束时_isGrounded = true;不可以跳跃 
    /// </summary>
    /// <param name="collision"></param>
    private void OnCollisionExit(Collision collision)
    {
        if (collision.gameObject.tag.Equals("Grounded"))
        {
            _isGrounded = true;
        }
    }
}

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2，CharacterController

using UnityEngine;

public class Move : MonoBehaviour
{
    private CharacterController controller;
    private Vector3 Direction;
    private Vector3 JumpDown;
    private float vInput;
    private float hInput;
    /// <summary>
    /// 移动速度
    /// </summary>
    private float moveSpeed = 1.5f;
    /// <summary>
    /// 跳跃力度
    /// </summary>
    private float jumpSpeed = 5f;
    /// <summary>
    /// 转弯速度
    /// </summary>
    private float rotateSpeed = 180f;
    /// <summary>
    /// 跳跃高度
    /// </summary>
    private float jumpHeight = 7f;
    /// <summary>
    /// 重力
    /// </summary>
    private float Gravity = 18f;

    void Start()
    {
        controller = GetComponent<CharacterController>();
        Direction = Vector3.zero;
    }
    void Update()
    {
        //判断是否在地面
        if (controller.isGrounded)
        {
            vInput = Input.GetAxis("Vertical");
            hInput = Input.GetAxis("Horizontal");
            Direction = new Vector3(hInput, 0f, vInput);
            Direction *= moveSpeed;
            //旋转
            Vector3 rotation_V = Vector3.right * vInput * rotateSpeed * Time.deltaTime;
            Vector3 rotation_H = Vector3.back * hInput * rotateSpeed * Time.deltaTime;
            if (Mathf.Abs(vInput) != 0)
            {
                transform.Rotate(rotation_V, Space.World);
            }
            if (Mathf.Abs(hInput) != 0)
            {
                transform.Rotate(rotation_H, Space.World);
            }

            if (Input.GetKeyDown(KeyCode.Space))
            {
                //跳跃高度
                JumpDown.y = jumpHeight;
            }
        }
        else
        {
            //不在地面随时间施加重力
            JumpDown.y -= Gravity * Time.deltaTime;
        }
        //移动加跳跃
        controller.Move((Direction + JumpDown) * jumpSpeed * Time.deltaTime);
    }
}

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