触发器

实例：实现一个移动的小球

球体运动脚本

通过transform的translate函数来改变实体的位置，是实现移动的一种基础方法。

using System.Collections;
using System.Collections.Generic;
using UnityEditor;
using UnityEngine;
using UnityEngine.SceneManagement;

public class move : MonoBehaviour
{
    // Start is called before the first frame update
    public float speed=10;
    public float turnspeed=10;
    
    // Update is called once per frame
    void Update()
    {
        
        float x = Input.GetAxis("Horizontal");//小球只进行左右运动
        transform.Translate(x * turnspeed * Time.deltaTime, 0, speed * Time.deltaTime);//移动代码
        
        
        if (transform.position.x < -4 || transform.position.x > 4)
        {
            transform.Translate(x * turnspeed * Time.deltaTime, -10 * Time.deltaTime, speed * Time.deltaTime);
            //超出边界后下落
        }
        if (transform.position.y < -15)
        {
            Time.timeScale = 0;
        }
        if (Input.GetKeyDown(KeyCode.R))//按r重新开始游戏
        {
            SceneManager.LoadScene(0);
            Time.timeScale = 1;
            return;
        }
        Transform c = Camera.main.transform;
        Quaternion cur = c.rotation;
        Quaternion target = cur * Quaternion.Euler(0, 0, x *0.5f);
        Camera.main.transform.rotation = Quaternion.Slerp(cur, target, 0.25f);//摄像机转动
    }
}

触发器脚本

小球碰到障碍物后要结束游戏，通过设置触发器完成

注意障碍物要勾选is trigger选项

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

public class reach : MonoBehaviour
{
    private void OnTriggerEnter(Collider other)
    {
        if (other.name == "Sphere")//碰到了障碍物
        {
            Time.timeScale = 0;//游戏结束
        }
    }
}