1using UnityEngine;
  2using UnityEngine.Audio;
  3using UnityEngine.SceneManagement;
  4using UnityEngine.UI;
  5
  6public class MenuManager : MonoBehaviour
  7{
  8    public GameObject loadPanel;
  9    public GameObject creditsPanel;
 10    public GameObject settingsPanel;
 11    public AudioMixer mixer;
 12
 13    private SettingsManager sm;
 14    enum Panel
 15    {
 16        None = -1,
 17        Load = 0,
 18        Credits = 1,
 19        Settings = 2
 20    }
 21    Panel currentPanel = Panel.None;
 22
 23    private void Start() //remember this is shared between gameover and main menu
 24    {
 25        //set music menu
 26        mixer.SetFloat("MusicVolume", Mathf.Log10(PlayerPrefs.GetFloat("MusicVolume", 0.75f)) * 20);
 27        mixer.SetFloat("SfxVolume", Mathf.Log10(PlayerPrefs.GetFloat("SfxVolume", 0.75f)) * 20);
 28
 29        GameMaster.Instance.resetGame();
 30        if (settingsPanel)
 31        {
 32            sm = settingsPanel.GetComponent<SettingsManager>();
 33            settingsPanel.SetActive(false); //TODO: start with settings panel open or set mixer volume in another way
 34        }
 35    }
 36
 37    #region Menu buttons
 38    public void NewGame()
 39    {
 40        SceneManager.LoadScene("Level0");
 41    }
 42
 43    public void LoadGame()
 44    {
 45        if(currentPanel == Panel.Load)
 46        {
 47            hideAllPanels();
 48            currentPanel = Panel.None;
 49        } else
 50        {
 51            currentPanel = Panel.Load;
 52            Button btn;
 53            //Fill load slots
 54            for (int i = 0; i < loadPanel.transform.childCount; i++)
 55            {
 56                btn = loadPanel.transform.GetChild(i).GetComponent<Button>();
 57                UI.setSLButtonText(btn, i);
 58            }
 59            loadPanel.SetActive(true);
 60        }
 61    }
 62
 63    public void Credits()
 64    {
 65        if (currentPanel == Panel.Credits)
 66        {
 67            hideAllPanels();
 68            currentPanel = Panel.None;
 69        }
 70        else
 71        {
 72            currentPanel = Panel.Credits;
 73            creditsPanel.SetActive(true);
 74        }
 75    }
 76
 77    public void Settings()
 78    {
 79        if (currentPanel == Panel.Settings)
 80        {
 81            hideAllPanels();
 82            currentPanel = Panel.None;
 83        }
 84        else
 85        {
 86            currentPanel = Panel.Settings;
 87            settingsPanel.SetActive(true);
 88        }
 89    }
 90
 91    public void Quit()
 92    {
 93        Application.Quit();
 94    }
 95    #endregion
 96    
 97    #region GameOver Button
 98    public void BackToMainMenu()
 99    {
100        SceneManager.LoadScene("Menu");
101    }
102    #endregion
103
104    private void hideAllPanels()
105    {
106        loadPanel.SetActive(false);
107        creditsPanel.SetActive(false);
108        settingsPanel.SetActive(false);
109    }
110}