代码错误。修饰符 public 无效。为什么？

Question

我正在 Unity 中制作 2D 游戏，并试图在每次屏幕上出现对话时让我的可移动角色停止。

我在对话中使用 Fungus 扩展，因为我是编码新手。我尝试的每件事都运行遇到了问题。

我当前的问题是修饰符 'public' 对该项目无效。

有人知道如何解决这个问题吗？我附上了下面的代码。我认为问题出在 public void CantMove() 和 public void CanMove() 行。

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

public class PlayerController : MonoBehaviour
{
    public float moveSpeed;
    public Rigidbody2D theRB;
    public float jumpForce;

    private bool isGrounded;
    public Transform groundCheckPoint;
    public LayerMask whatIsGround;

    private bool canDoubleJump;

    private bool canMove = true;

    private Animator anim;
    private SpriteRenderer theSR;

    // Start is called before the first frame update
    void Start()
    {
        anim = GetComponent<Animator>();
        theSR = GetComponent<SpriteRenderer>();
    }

    // Update is called once per frame
    void Update()
    {
        if(!canMove)
        {
            theRB.velocity = new Vector2(0, 0);
        }
        else
        {
            theRB.velocity = new Vector2(moveSpeed * Input.GetAxis("Horizontal"), theRB.velocity.y);
        }

        public void CantMove()
        {
            canMove = false;
        }
        public void CanMove()
        {
            canMove = true;
        }

       //theRB.velocity = new Vector2(moveSpeed * Input.GetAxis("Horizontal"), theRB.velocity.y);

       isGrounded = Physics2D.OverlapCircle(groundCheckPoint.position, .2f, whatIsGround);

       if(isGrounded)
       {
            canDoubleJump = true;
        }

       if(Input.GetButtonDown("Jump"))
       {
            if (isGrounded)
            {
                theRB.velocity = new Vector2(theRB.velocity.x, jumpForce);
            }
            else
            {
                if(canDoubleJump)
                {
                    theRB.velocity = new Vector2(theRB.velocity.x, jumpForce);
                    canDoubleJump = false;
                }
            }
        }

        if(theRB.velocity.x > 0)
        {
            theSR.flipX = true;
        }   else if(theRB.velocity.x < 0)
        {
            theSR.flipX = false;
        }

        anim.SetFloat("moveSpeed", Mathf.Abs( theRB.velocity.x));
        anim.SetBool("isGrounded", isGrounded);
    }
}

'''

Answer 1

你的问题是你为 CanMove 和 CantMove 定义的两个函数是在 Update 函数体内声明的...这使它们成为局部范围的函数，这意味着它们永远不能 public 访问并且只能是从更新函数本身调用。

像这样将这两个函数移到 Update 函数体之外...

void Update() {
   ...
}

public void CantMove() {
    canMove = false;
}

public void CanMove() {
    canMove = true;
}

代码错误。修饰符 public 无效。为什么？

Code Error. The modifier public is not valid. Why?

xcode

public

unity3d

game-physics

public-key