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

public class Game : MonoBehaviour
{
    // Start is called before the first frame update
    [SerializeField] GameObject _cloudPrefab;
    [SerializeField] GameObject _birdPrefab;
    [SerializeField] GameObject _pterodactylPrefab;

    const int NUM_CLOUDS = 8;
    const float START_X = 1300;
    const float PTERODACTYL_CHANCE = .15f;
    [SerializeField] Text _victoryMessage;
    [SerializeField] Text _restartMessage;
    bool _victory = false;
    float _timeToNextBird = 0f;

    void Start()
    {
        _victoryMessage.enabled = false;
        _restartMessage.enabled = false;

        for (int i = 0; i < NUM_CLOUDS; ++i)
        {
            GameObject cloud = GameObject.Instantiate(_cloudPrefab);
            cloud.transform.position = new Vector3(Random.Range(START_X, START_X + 1920 + CloudWraparound.DISTANCE_OFF_LEFT_EDGE), cloud.transform.position.y, cloud.transform.position.z);
        }
    }

    public void Victory(string dragonName, Color color)
    {
        if (_victory)
            return;

        _victory = true;
        _restartMessage.enabled = true;
        _victoryMessage.enabled = true;

        _victoryMessage.text = dragonName.ToUpper() + " WINS!";
        _victoryMessage.color = color;
    }
    void SpawnBird()
    {
        GameObject bird;
        if (Random.Range(0f,1f)< PTERODACTYL_CHANCE)
        {
            bird = GameObject.Instantiate(_pterodactylPrefab);
        }
        else
        {
            bird = GameObject.Instantiate(_birdPrefab);
        }
        
        float y = Random.Range(0f, 1080f);
        bird.transform.position = new Vector3(2000f, y, 0f);

        _timeToNextBird = Random.Range(0f, 4f);
    }

    // Update is called once per frame
    void Update()
    {
        _timeToNextBird -= Time.deltaTime;

        if (_timeToNextBird < 0f)
        {
            SpawnBird();
        }

        if (Input.GetKeyDown(KeyCode.R))
        {
            SceneManager.LoadScene(SceneManager.GetActiveScene().name);
        }
    }
}