using UnityEngine;
using System.Collections;
using System.Collections.Generic;
public class Gamer : MonoBehaviour
{

     public GameObject block;
     public Material mat_blue;
     public Material mat_red;
  public Material mat_black;
   

     // Use this for initialization
     void Start()
     {
         LoadBlocks();//new
         block.renderer.sharedMaterial = mat_blue;//new
         Screen.showCursor = false;
     }

     // Update is called once per frame
     void Update()
     {
         Ray ray = Camera.mainCamera.ScreenPointToRay(new Vector3(Screen.width / 2, Screen.height / 2, 0));
         RaycastHit hit;

         if (Physics.Raycast(ray, out hit, 5f) && hit.collider.CompareTag("Block"))
         {
             if (Input.GetMouseButtonUp(0))
             {
                 Vector3 pos = hit.collider.transform.position;
                 pos += hit.normal;

                 Instantiate(block, pos, Quaternion.identity);
             }
             else if (Input.GetMouseButtonUp(1))
             {
                 DestroyObject(hit.collider.gameObject);
             }
         }
         else if (Physics.Raycast(ray, out hit, 10f) && hit.collider.name.Equals("Plane"))
         {
             if (Input.GetMouseButtonUp(0))
             {
                 Vector3 pos = hit.point;
                 pos.y = 0;
                 pos.x = Mathf.Round(pos.x);
                 pos.z = Mathf.Round(pos.z);

                 Instantiate(block, pos, Quaternion.identity);
             }
         }
     }

     void OnGUI()
     {
         if (Input.GetKey(KeyCode.M))
         {
             Screen.showCursor = true;

             GUILayout.BeginVertical();
             GUILayout.Label(block.renderer.sharedMaterial.name + "");

             if (GUILayout.Button("Blue"))
             {
                 block.renderer.sharedMaterial = mat_blue;
             }
             if (GUILayout.Button("Red"))
             {
                 block.renderer.sharedMaterial = mat_red;
             }
    if (GUILayout.Button("Black"))
             {
                 block.renderer.sharedMaterial = mat_red;
             }
             GUILayout.EndVertical();
         }
         else
         {
             Screen.showCursor = false;
         }
     }

     void OnApplicationQuit()
     {
         SaveBlocks();
     }
     /// <summary>
     /// Для загрузки блоков
     /// </summary>
     void LoadBlocks()
     {
         //если нету записи, то выходим
         if (!PlayerPrefs.HasKey("blocks"))
             return;
         //получаем строку, содержащую все блоки
         string strBlocks = PlayerPrefs.GetString("blocks");
         //получаем массив блоков
         string[] masBlocks = strBlocks.Split(new char[] { ';' }, System.StringSplitOptions.RemoveEmptyEntries);
         //перебираем каждый блок
         foreach (string s in masBlocks)
         {
             //Массив параметров блока
             string[] masParam = s.Split(new char[] { '#' }, System.StringSplitOptions.RemoveEmptyEntries);
             //Позиция
             Vector3 pos = new Vector3(float.Parse(masParam[0]), float.Parse(masParam[1]), float.Parse(masParam[2]));
             //Тип материала
             byte matType = byte.Parse(masParam[4]);
             block.renderer.sharedMaterial = GetMatById(matType);
             //Добавляем блок на сцену
             Instantiate(block, pos, Quaternion.identity);
         }

         Debug.Log(string.Format("Загружено {0} блоков!", masBlocks.Length));
     }
     /// <summary>
     /// Для сохранения блоков
     /// </summary>
     void SaveBlocks()
     {
         //получаем все блоки на сцене
         GameObject[] allBlocks = GameObject.FindGameObjectsWithTag("Block");
         string saveStr = "";
         //берем каждый блок
         foreach (GameObject g in allBlocks)
         {
             //позиция блока
             Vector3 pos = g.transform.position;
             //записываем информацию о блоке в строку.
             saveStr += string.Format("{0}#{1}#{2}#{3}#{4};", pos.x, pos.y, pos.z, GetIdByMat(g.renderer.sharedMaterial));
         }
         //добавляем строку с блоками в хронилище
         PlayerPrefs.SetString("blocks", saveStr);
         //сохраняем!!!
         PlayerPrefs.Save();

         Debug.Log(string.Format("Сохранено {0} блоков", allBlocks.Length));
     }
     /// <summary>
     /// Возвращает ИД указанного материала
     /// </summary>
     /// <param name="m"></param>
     /// <returns></returns>
     byte GetIdByMat(Material m){
         switch (m.name)
         {
             case "mBlue":
                 return 0;
             case "mRed":
                 return 1;
    case "mblue":
                 return 2;
    case "mblack":
                 return 3;
             default:
                 return 0;
         }
     }
     /// <summary>
     /// Возвращает Материал по ИД
     /// </summary>
     /// <param name="id"></param>
     /// <returns></returns>
     Material GetMatById(byte id)
     {
         switch (id)
         {
             case 0:
                 return mat_blue;
             case 1:
                 return mat_red;
    case 2:
                 return mat_black;
             default:
                 return mat_blue;
         }
     }
}