using System;

using System.Collections;

using System.Collections.Generic;

using UnityEngine;

using UnityEngine.SceneManagement;

using UnityEngine.UI;

public class GameSession : MonoBehaviour {

[SerializeField] int playerLives = 3;

[SerializeField] int score = 0;

[SerializeField] Text livesText;

[SerializeField] Text scoreText;

private void Awake()

{

int numGameSessions = FindObjectsOfType<GameSession>().Length;

if (numGameSessions > 1)

{

Destroy(gameObject);

}

else

{

DontDestroyOnLoad(gameObject);

}

}

// Use this for initialization

void Start () {

livesText.text = playerLives.ToString();

scoreText.text = score.ToString();

}

public void AddToScore (int pointsToAdd)

{

score += pointsToAdd;

scoreText.text = score.ToString();

}

public void ProcessPlayerDeath()

{

if (playerLives > 1)

{

TakeLife();

}

else

{

ResetGameSession();

}

}

private void TakeLife()

{

playerLives--;

var currentSceneIndex = SceneManager.GetActiveScene().buildIndex;

SceneManager.LoadScene(currentSceneIndex);

livesText.text = playerLives.ToString();

}

private void ResetGameSession()

{

SceneManager.LoadScene(0);

Destroy(gameObject);

}

}