c# unity2d：如何移动 Object 并在碰撞时改变方向？

Question

Object 移动，但它没有改变方向，我不知道为什么。

那是名为“zackenblock”的 object 的代码：

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

public class zackenblock_move : MonoBehaviour
{
    public static bool col = false;
    public float speed = 10f;

    // Start is called before the first frame update
    void Start()
    {
        
    }

    void Update()
    {
        if (zackenblock_col.collosin != col)
        {
            col = zackenblock_col.collosin;
        }
    }

    // Update is called once per frame
    void FixedUpdate()
    {
        if (col == false){
            transform.Translate(Vector3.right * Time.deltaTime * speed);
        }
        else
        {
            transform.Translate(Vector3.left * Time.deltaTime * speed);
        }

        /*if (Input.GetKey(KeyCode.M))
        {
            col = true;
        }*/
    }
    void OnCollisionEnter(Collision collision){
        //Check for a match with the specified name on any GameObject that collides with your GameObject
        if (collision.gameObject.name == "Level1_part2")
        {
            //If the GameObject's name matches the one you suggest, output this message in the console
            Debug.Log("Do something here");
            col = true;
        }

        else if (collision.gameObject.name == "Level")
        {
            //If the GameObject's name matches the one you suggest, output this message in the console
            Debug.Log("Do something here");
            col = false;
        }
    }
    /*IEnumerator waiter_not_that_waiter_just_waiter(){
        yield return new waitforseconds(3f);
        //my code here after 3 seconds
        transform.Translate(Vector3.right * Time.deltaTime);
        yield return new waitforseconds(3f);
        transform.Translate(Vector3.left * Time.deltaTime);
    }*/

}

这就是 tilemap 中的代码：

using System.Security.Cryptography;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class zackenblock_col : MonoBehaviour
{
    public static bool collosin;

    // Start is called before the first frame update
    void Start()
    {
        
    }

    // Update is called once per frame
    void Update()
    {
        if (Input.GetKey(KeyCode.M))
        {
            collosin = true;
        }
    }
    void OnCollisionEnter(Collision collision){
        //Check for a match with the specified name on any GameObject that collides with your GameObject
        if (collision.gameObject.name == "zackenblock")
        {
            //If the GameObject's name matches the one you suggest, output this message in the console
            Debug.Log("Do something here");
            collosin = true;
        }

        /*else if (collision.gameObject.name == "Level")
        {
            //If the GameObject's name matches the one you suggest, output this message in the console
            Debug.Log("Do something here");
            collosin = false;
        }*/
    }
}

以下是一些截图：

unity和object的截图：

unity 和 tilemap 的截图：

unity 和 tilemap2 的截图：

object 应该向右移动，碰撞时向左移动。

它只会不停地向右移动。

Answer 1

您的代码的主要问题是您拼写错误。 将“collosin”更改为“collision”。 并改变：

void OnCollisionEnter(Collision collision)

进入

void OnCollisionEnter2d(Collision2d collision)

除此之外，您的代码似乎还不错。

Answer 2

使用 OnCollisionEnter2D 因为你正在制作 2D 游戏

private void OnCollisionEnter2D(Collision2D col)
        {
           
        }

如果碰撞持续存在，还可以检查 OnCollisionStay2D/exit。