Pipes Keep Spawning

I am a complete beginner and i was recommended to remake flappy bird to learn the basics and i cant solve the issue of pipes spawning even after i die can a pro help?

birbjump.cs:

using Unity.Collections.Tests.CoreCLR.TestJobs; using UnityEngine;

public class birbjump : MonoBehaviour { public Rigidbody2D myRigidbody; public float flap_strength; float rotation; public GameObject gameover; public ScoreTrack logic; public bool BirdIsAlive = true; public string test = "test";

public void GameOver(){ gameover.SetActive(true); }

void Start() { transform.position = new Vector3(0,0,0); transform.Rotate(new Vector3(0, 0, 0)); logic = GameObject.FindGameObjectWithTag("Logic").GetComponent<ScoreTrack>(); BirdIsAlive = true; }

void Update() { if (Input.GetKeyDown(KeyCode.Space) == true && BirdIsAlive){ myRigidbody.linearVelocity = new Vector2(0,1) * flap_strength; } }

private void OnCollisionEnter2D(Collision2D collision) { BirdIsAlive = false; GameOver(); } }using Unity.Collections.Tests.CoreCLR.TestJobs; using UnityEngine;

public class birbjump : MonoBehaviour { public Rigidbody2D myRigidbody; public float flap_strength; float rotation; public GameObject gameover; public ScoreTrack logic; public bool BirdIsAlive = true; public string test = "test";

public void GameOver(){ gameover.SetActive(true); }

void Start() { transform.position = new Vector3(0,0,0); transform.Rotate(new Vector3(0, 0, 0)); logic = GameObject.FindGameObjectWithTag("Logic").GetComponent<ScoreTrack>(); BirdIsAlive = true; }

void Update() { if (Input.GetKeyDown(KeyCode.Space) == true && BirdIsAlive){ myRigidbody.linearVelocity = new Vector2(0,1) * flap_strength; } }

private void OnCollisionEnter2D(Collision2D collision) { BirdIsAlive = false; GameOver(); } }

pipespawner.cs:

using UnityEngine;

public class pipe_spawner : MonoBehaviour { public GameObject Top_Pipe; public GameObject Bottom_Pipe; public GameObject Pipe_Middle; public float spawnrate; private float timer = 0; public float HeightOffset; public float Max_Space; public float Min_Space; public birbjump birbjumpref;

void Start() { SpawnPipe(); birbjumpref = GameObject.FindGameObjectWithTag("Birbjump").GetComponent<birbjump>(); birbjumpref.BirdIsAlive = true; }

void Update() { if (birbjumpref == null) { return; } if (timer <= spawnrate){ timer+=Time.deltaTime; } else { if (birbjumpref.BirdIsAlive) { SpawnPipe(); } else { Debug.Log("We are so dead"); } timer -= spawnrate; } } void SpawnPipe(){ float lowestPoint =transform.position.y + 35 - HeightOffset; float HighestPoint =transform.position.y + HeightOffset; Instantiate(Top_Pipe, new Vector3(transform.position.x, Random.Range(lowestPoint, HighestPoint), 0), transform.rotation); Instantiate(Bottom_Pipe, new Vector3(transform.position.x, Top_Pipe.transform.position.y - Random.Range(Min_Space, Max_Space), 0), Bottom_Pipe.transform.rotation); Instantiate(Pipe_Middle, new Vector3(transform.position.x, 0, 0), transform.rotation); } }using UnityEngine;

public class pipe_spawner : MonoBehaviour { public GameObject Top_Pipe; public GameObject Bottom_Pipe; public GameObject Pipe_Middle; public float spawnrate; private float timer = 0; public float HeightOffset; public float Max_Space; public float Min_Space; public birbjump birbjumpref;

void Start() { SpawnPipe(); birbjumpref = GameObject.FindGameObjectWithTag("Birbjump").GetComponent<birbjump>(); birbjumpref.BirdIsAlive = true; }

void Update() { if (birbjumpref == null) { return; } if (timer <= spawnrate){ timer+=Time.deltaTime; } else { if (birbjumpref.BirdIsAlive) { SpawnPipe(); } else { Debug.Log("We are so dead"); } timer -= spawnrate; } } void SpawnPipe(){ float lowestPoint =transform.position.y + 35 - HeightOffset; float HighestPoint =transform.position.y + HeightOffset; Instantiate(Top_Pipe, new Vector3(transform.position.x, Random.Range(lowestPoint, HighestPoint), 0), transform.rotation); Instantiate(Bottom_Pipe, new Vector3(transform.position.x, Top_Pipe.transform.position.y - Random.Range(Min_Space, Max_Space), 0), Bottom_Pipe.transform.rotation); Instantiate(Pipe_Middle, new Vector3(transform.position.x, 0, 0), transform.rotation); } }

also pipes stop spawning when i manually uncheck birdisalive under birbjump but not when i die whats that about?