using UnityEngine;
  using System.Collections;
  
  public enum BreakoutGameState { playing, won, lost };
  
  public class BreakoutGame : MonoBehaviour
  {
      public static BreakoutGame SP;
  
      public Transform ballPrefab;
  
      private int totalBlocks;
      private int blocksHit;
      private BreakoutGameState gameState;
  
      void Awake()
      {
          SP = this;
          blocksHit = 0;
          gameState = BreakoutGameState.playing;
          totalBlocks = GameObject.FindGameObjectsWithTag("Pickup").Length;
          Time.timeScale = 1.0f;
          SpawnBall();
      }
  
      void SpawnBall()
      {
          Instantiate(ballPrefab, new Vector3(1.81f, 1.0f , 9.75f), Quaternion.identity);
      }
  
      void OnGUI(){
      
          GUILayout.Space(10);
          GUILayout.Label("  Hit: " + blocksHit + "/" + totalBlocks);
  
          if (gameState == BreakoutGameState.lost)
          {
              GUILayout.Label("You Lost!");
              if (GUILayout.Button("Try again"))
              {
                  Application.LoadLevel(Application.loadedLevel);
              }
          }
          else if (gameState == BreakoutGameState.won)
          {
              GUILayout.Label("You won!");
              if (GUILayout.Button("Play again"))
              {
                  Application.LoadLevel(Application.loadedLevel);
              }
          }
      }
  
      public void HitBlock()
      {
          blocksHit++;
          
          //For fun:
          if (blocksHit%10 == 0) //Every 10th block will spawn a new ball
          {
              SpawnBall();
          }
  
          
          if (blocksHit >= totalBlocks)
          {
              WonGame();
          }
      }
  
      public void WonGame()
      {
          Time.timeScale = 0.0f; //Pause game
          gameState = BreakoutGameState.won;
      }
  
      public void LostBall()
      {
          int ballsLeft = GameObject.FindGameObjectsWithTag("Player").Length;
          if(ballsLeft<=1){
              //Was the last ball..
              SetGameOver();
          }
      }
  
      public void SetGameOver()
      {
          Time.timeScale = 0.0f; //Pause game
          gameState = BreakoutGameState.lost;
      }
  }