Unity 3D粒子碰撞功能开发代码报错问题排查求助

错误修复列表 #

你遇到的所有问题修改如下：

1. 解决CS1001、CS1003语法错误 #

错误出现在第56行OnCollisionEnter方法的参数定义，原代码错误写为：
private void OnCollisionEnter(Collision collision other)
Collision是参数类型，后面只能跟一个自定义参数名，同时写collision和other两个标识符不符合C#语法，修改为private void OnCollisionEnter(Collision other)即可。

2. 修复其他逻辑/拼写错误 #

• other.gameObject.CampareTag("Rock")拼写错误，正确方法名为CompareTag
• playerAnim.SetInterger("DeathType_int", 1)拼写错误，正确Animator方法名为SetInteger
• playerAnim变量未初始化，需要在Start()方法中补充代码playerAnim = GetComponent<Animator>();，否则运行时会触发空引用异常
• OnGUIDepth changed属于Unity编辑器临时提示，不是代码错误，修改完代码重启编辑器即可消除

修正后完整代码 #

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

public class PlayerController1 : MonoBehaviour
{
    public float horizontalInput;
    public float speed = 10.0f;
    public float xRange = 100;
    private Animator playerAnim;
    public AudioClip crashSound;
    private AudioSource playerAudio;

    public GameObject projectilePrefab;
    public ParticleSystem explosionParticle;
    public bool isOnGround = true;
    public bool gameOver;
    


    // Start is called before the first frame update
    void Start()
    {
        playerAudio = GetComponent<AudioSource>();
        playerAnim = GetComponent<Animator>();
    }

    // Update is called once per frame
    void Update()
    {
        if (transform.position.x < -xRange)
        {
            transform.position = new Vector3(-xRange, transform.position.y, transform.position.z);
        }

        if (transform.position.x > xRange)
        {
            transform.position = new Vector3(xRange, transform.position.y, transform.position.z);
        }

        horizontalInput = Input.GetAxis("Horizontal");
        transform.Translate(Vector3.right * horizontalInput * Time.deltaTime * speed);

        if (Input.GetKeyDown(KeyCode.Space))
        {
            Instantiate(projectilePrefab, transform.position, transform.rotation);
        }
    }

    private void OnCollisionEnter(Collision other)
    {
        if (other.gameObject.CompareTag("Rock"))
        {
            isOnGround = true;
        } 
        else if (other.gameObject.CompareTag("Star"))
        {
            Debug.Log("Game Over");
            gameOver = true;
            playerAnim.SetBool("Death_b", true);
            playerAnim.SetInteger("DeathType_int", 1);
            explosionParticle.Play();
            playerAudio.PlayOneShot(crashSound, 1.0f);
        }
    }
}

内容的提问来源于stack exchange，提问作者Jazzmine McLeod