savegame.java

拉登采矿

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.PrintStream;
import javax.microedition.rms.RecordStore;
import javax.microedition.rms.RecordStoreException;

class SaveGame
{
  static RecordStore myGame;
  static boolean gameHaveBeenInit = false;
  static String gameData;

  private static void initialize()
  {
    ByteArrayOutputStream localByteArrayOutputStream = new ByteArrayOutputStream();
    DataOutputStream localDataOutputStream = new DataOutputStream(localByteArrayOutputStream);
    try
    {
      byte[] arrayOfByte;
      try
      {
        localDataOutputStream.writeUTF("A@0/B*0~C^0(D)0!E#0%F&0");
        arrayOfByte = localByteArrayOutputStream.toByteArray();
        localDataOutputStream.close();
      }
      catch (IOException localIOException)
      {
        System.out.println(localIOException);
        throw new RecordStoreException();
      }
      myGame.addRecord(arrayOfByte, 0, arrayOfByte.length);
    }
    catch (RecordStoreException localRecordStoreException)
    {
      close();
      System.out.println(localRecordStoreException);
    }
  }

  static void open()
  {
    try
    {
      myGame = RecordStore.openRecordStore("topscore", true);
      if (gameHaveBeenInit)
        return;
      if (myGame.getNumRecords() == 0)
      {
        initialize();
      }
      else
      {
        byte[] arrayOfByte = myGame.getRecord(1);
        if (arrayOfByte != null)
          try
          {
            ByteArrayInputStream localByteArrayInputStream = new ByteArrayInputStream(arrayOfByte);
            DataInputStream localDataInputStream = new DataInputStream(localByteArrayInputStream);
            gameData = localDataInputStream.readUTF();
            localDataInputStream.close();
            if (gameData.equals(""))
            {
              gameData = "A@0/B*0~C^0(D)0!E#0%F&0";
              saveGame(gameData);
            }
          }
          catch (IOException localIOException)
          {
          }
      }
      gameHaveBeenInit = true;
    }
    catch (RecordStoreException localRecordStoreException)
    {
      System.out.println(localRecordStoreException);
    }
  }

  static void close()
  {
    if (myGame != null)
    {
      try
      {
        myGame.closeRecordStore();
      }
      catch (RecordStoreException localRecordStoreException)
      {
      }
      myGame = null;
    }
  }

  static void saveGame(String paramString)
  {
    ByteArrayOutputStream localByteArrayOutputStream;
    byte[] arrayOfByte;
    try
    {
      try
      {
        localByteArrayOutputStream = new ByteArrayOutputStream();
        DataOutputStream localDataOutputStream = new DataOutputStream(localByteArrayOutputStream);
        localDataOutputStream.writeUTF(paramString);
        arrayOfByte = localByteArrayOutputStream.toByteArray();
        localDataOutputStream.close();
      }
      catch (IOException localIOException)
      {
        throw new RecordStoreException();
      }
      if (myGame == null)
      {
        open();
        myGame.setRecord(1, arrayOfByte, 0, arrayOfByte.length);
        close();
      }
      else
      {
        myGame.setRecord(1, arrayOfByte, 0, arrayOfByte.length);
      }
    }
    catch (RecordStoreException localRecordStoreException)
    {
    }
    gameData = paramString;
  }

  static String getGameData()
  {
    if (!(gameHaveBeenInit))
    {
      open();
      close();
    }
    return gameData;
  }
}