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

public class GameController : MonoBehaviour {
	public GameObject[] hazards;
	public Vector3 spawnValues;
	public int hazardCount;
	public float spawnWait, startWait, waveWait;
	public Text scoreText, gameOverText; //restartText
	public GameObject restartButton;
	private int score;
	private bool gameOver;
	private bool restart;
	void Start()
	{
		score = 0;
		gameOver = false;
		restart = false;
		//restartText.text = "";
		gameOverText.text = "";
		restartButton.SetActive(false);
		UpdateScore();
		StartCoroutine (SpawnWaves());
	}
	// void Update()
	// {
	// 	if (restart)
	// 	{
	// 		if (Input.GetKeyDown(KeyCode.R))
	// 		{
	// 			Application.LoadLevel(Application.loadedLevel);
	// 		}
	// 	}
	// }
	IEnumerator SpawnWaves()
	{
		yield return new WaitForSeconds(startWait);
		while (true)
		{
			for (int i = 0; i < hazardCount; i++)
			{
				GameObject hazard = hazards[Random.Range(0, hazards.Length)];
				Vector3 spawnPosition = new Vector3(Random.Range(-spawnValues.x, spawnValues.x), spawnValues.y, spawnValues.z);
				Quaternion spawnRotation = Quaternion.identity;
				Instantiate(hazard, spawnPosition, spawnRotation);
				yield return new WaitForSeconds(spawnWait);
			}
			yield return new WaitForSeconds(waveWait);
			if (gameOver)
			{
//				restartText.text = "Press 'R' for Restart";
				restartButton.SetActive(true);
				restart = true;
				break;
			}
		}
	}
	public void AddScore (int newScoreValue)
	{
		score += newScoreValue;
		UpdateScore();
	}
	void UpdateScore()
	{
		scoreText.text = "Score: " + score;
	}
	public void GameOver()
	{
		gameOverText.text = "Game Over!";
		gameOver = true;
	}
	public void RestartGame()
	{
		Application.LoadLevel(Application.loadedLevel);
	}
}