qq_35219692 2016-06-24 06:38 采纳率: 54.5%
浏览 1822

unity3d c#调用脚本报错

using UnityEngine;
using System.Collections;

public class Destorybycontact : MonoBehaviour {
public GameObject explosion;
public GameObject playerexplosion;
public int score1;
private Gamecontrol game;

void start()
{
    GameObject gamecontrolobject = GameObject.FindWithTag("GameController");
    if (gamecontrolobject != null)
    {
        game = gamecontrolobject.GetComponent<Gamecontrol>();
    }
    if(gamecontrolobject == null)
    {
        Debug.Log("can't find 'Gamecontrol' scipt");
    }
}

void OnTriggerEnter(Collider other)
{
    if (other.tag == "boundary")
    { return; }
    Instantiate(explosion, transform.position, transform.rotation);
    if (other.tag == "Player")
    {
        Instantiate(playerexplosion, other.transform.position, other.transform.rotation);
    }
    game.addScore(score1);
    Destroy(other.gameObject);
    Destroy(gameObject);
}

}

报错NullReferenceException: Object reference not set to an instance of an object。显示这个是空值game.addScore(score1);。也不知道为什恶魔,求解

  • 写回答

3条回答 默认 最新

  • herozhangbz 2016-06-24 06:44
    关注

    你应该这么写吧

         GameObject gamecontrolobject = GameObject.FindWithTag("GameController");
        if (gamecontrolobject != null)
        {
            game = gamecontrolobject.GetComponent<Gamecontrol>();
            game.addScore(score1);          
        }
        else
            Debug.Log("can't find 'Gamecontrol' scipt");
    
    
    
    

    你都不能确定game得到有效赋值,你就给加力明显不对的

    评论

报告相同问题?

悬赏问题

  • ¥15 seatunnel-web使用SQL组件时候后台报错,无法找到表格
  • ¥15 fpga自动售货机数码管(相关搜索:数字时钟)
  • ¥15 用前端向数据库插入数据,通过debug发现数据能走到后端,但是放行之后就会提示错误
  • ¥30 3天&7天&&15天&销量如何统计同一行
  • ¥30 帮我写一段可以读取LD2450数据并计算距离的Arduino代码
  • ¥15 飞机曲面部件如机翼,壁板等具体的孔位模型
  • ¥15 vs2019中数据导出问题
  • ¥20 云服务Linux系统TCP-MSS值修改?
  • ¥20 关于#单片机#的问题:项目:使用模拟iic与ov2640通讯环境:F407问题:读取的ID号总是0xff,自己调了调发现在读从机数据时,SDA线上并未有信号变化(语言-c语言)
  • ¥20 怎么在stm32门禁成品上增加查询记录功能