gistfile1.txt

using UnityEngine;

public class BirdInBoundaryGame : MonoBehaviour
{
    [SerializeField] private Bird _bird;

    [SerializeField] private float _upperYLimit;
    [SerializeField] private float _lowerYLimit;    
    [SerializeField] private float _rightXLimit;
    [SerializeField] private float _leftXLimit;

    [SerializeField] private string _looseMessage;

    [SerializeField] private int _winCriterion;

    [SerializeField] private Transform _upperBorder;
    [SerializeField] private Transform _lowerBorder;
    [SerializeField] private Transform _rightBoard;
    [SerializeField] private Transform _leftBoard;

    private bool _isRunning;

    private void Start()
    {
        StartGame();
    }

    private void Update()
    {
        if (Input.GetKey(KeyCode.F))
            StartGame();

        if (_isRunning == false)
            return;

        if (_bird.transform.position.y > _upperYLimit || _bird.transform.position.y < _lowerYLimit)
        {
            _bird.gameObject.SetActive(false);
            Debug.Log(_looseMessage);
            Debug.Log($"Your score: {_bird.JumpCount}");
            _isRunning = false;
        }

        if(_bird.JumpCount > _winCriterion)
        {
            _bird.gameObject.SetActive(false);
            Debug.Log($"You win, your score: {_bird.JumpCount}");
            _isRunning = false;  
        }
    }

    private void StartGame()
    {
        _isRunning = true;
        _bird.gameObject.SetActive(true);
        _bird.transform.position = new Vector3(0,0,0);
        _bird.ResetVelocity();
        _bird.ResetJumpCounter();

        _upperBorder.position = new Vector3(0, _upperYLimit, 0);
        _lowerBorder.position = new Vector3(0, _lowerYLimit, 0);
        _rightBoard.position = new Vector3(_rightXLimit, 0, 0);
        _leftBoard.position = new Vector3(_leftXLimit, 0, 0);
    }
}