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AudioManager.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class AudioManager : MonoBehaviour
+{
+    public static AudioManager Instance;
+
+    private AudioSource player;
+
+    public AudioClip jump;
+    public AudioClip die1;
+    public AudioClip die2;
+
+    // Start is called before the first frame update
+    void Start()
+    {
+        Instance = this;
+        player = GetComponent<AudioSource>();
+    }
+
+    //播放跳跃音效
+    public void PlayJump()
+    {
+        player.PlayOneShot(jump);
+    }
+
+    //播放死亡音效
+    public void PlayDie()
+    {
+        //BGM停止
+        player.Stop();
+        //播放死亡音效
+        player.PlayOneShot(die1);
+        //1s后调用PlayDie2
+        Invoke("PlayDie2", 1f);
+    }
+
+    //后续音效
+    void PlayDie2()
+    {
+        player.PlayOneShot(die2);
+    }
+
+}

BgControl.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEngine.Rendering;
+
+public class BgControl : MonoBehaviour
+{
+    private float offset = 0;
+
+    // Start is called before the first frame update
+    void Start()
+    {
+
+    }
+    public void move(float dir)
+    {
+        if(dir >0 )
+        {
+            GetComponent<Renderer>().material.SetTextureOffset("_MainTex", new Vector2(offset += 0.3f * Time.deltaTime, 0));
+        }
+        else
+        {
+            GetComponent<Renderer>().material.SetTextureOffset("_MainTex", new Vector2(offset -= 0.3f * Time.deltaTime, 0));
+        }
+    }
+
+}

FireControl.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class FireControl : MonoBehaviour
+{
+    private PlayerControl pc;
+
+    void Start()
+    {
+        pc = GameObject.FindWithTag("Player").GetComponent<PlayerControl>();
+
+    }
+
+    void Update()
+    {
+        //如果玩家死亡
+        if(pc.hp < 1)
+        { return; }
+        //如果出屏幕，销毁
+        if(transform.position.x < -3f)
+        {
+            Destroy(gameObject);
+        }
+        //移动
+        transform.Translate(Vector3.left * Time.deltaTime * 1f);
+    }
+}

FireManager.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class FireManager : MonoBehaviour
+{
+
+    public GameObject Fire;
+
+    //间隔时间
+    private float cd = 2f;
+
+    private PlayerControl pc;
+    void Start()
+    {
+        pc = GameObject.FindWithTag("Player").GetComponent<PlayerControl>();
+    }
+
+    // Update is called once per frame
+    void Update()
+    {
+        if(pc.hp < 1)
+        {
+            return;
+        }
+        cd -= Time.deltaTime;
+        if(cd <= 0)
+        {
+            //创建火圈
+            Instantiate(Fire, transform.position, Quaternion.identity);
+            //重置CD
+            cd = 2f + Random.Range(-0.5f, 0.5f);
+        }
+    }
+}

PlayerControl.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class PlayerControl : MonoBehaviour
+{
+    public BgControl bgControl;
+    public int hp = 1;
+
+    private Animator ani;
+    private Rigidbody2D rBody;
+
+
+    //是否在地面
+    private bool isGround;
+    // Start is called before the first frame update
+    void Start()
+    {
+        ani = GetComponent<Animator>();
+        rBody = GetComponent<Rigidbody2D>();
+
+    }
+
+    // Update is called once per frame
+    void Update()
+    {
+        //玩家死亡
+        if(hp <= 0)
+        { return; }
+        //水平轴
+        float horizontal = Input.GetAxis("Horizontal");
+        if(horizontal != 0)
+        {
+            //移动
+            ani.SetBool("isRun",true);
+            //背景后移
+            bgControl.move(horizontal);
+        }
+        else
+        {
+            ani.SetBool("isRun", false);
+        }
+
+        //跳跃
+        if(Input.GetKeyDown(KeyCode.Space)&&isGround == true)
+        {
+            rBody.AddForce(Vector2.up * 170);
+            AudioManager.Instance.PlayJump();
+        }
+    }
+    //进入碰撞
+    private void OnCollisionEnter2D(Collision2D collision)
+    {
+        if(collision.collider.tag == "Ground")
+        {
+            isGround = true;
+            ani.SetBool("isJump", false);
+        }
+    }
+    //离开碰撞
+    private void OnCollisionExit2D(Collision2D collision)
+    {
+        if(collision.collider.tag == "Ground")
+        {
+            isGround = false;
+            ani.SetBool("isJump", true);
+        }
+    }
+
+    //进入火圈触发区域
+    private void OnTriggerEnter2D(Collider2D collision)
+    {
+        if(collision.tag == "Fire")
+        {
+            hp--;
+            Destroy(rBody);
+            ani.SetBool("Die", true);
+            AudioManager.Instance.PlayDie();
+        }
+    }
+
+}