RMS (groan) examples please...

[jamiefuller]

Hi All,

One week in and my game is nearing completion! (after my initial problems I ended up rewriting everything from scratch to fix it)

However now I have a quick question, in the morning I need to start looking into saving the last level number I completed so that when I re-run the game I can continue from that (or any level below) it.

So my plan is to use recordstore, however it looks rather complicated for my needs. I only ever want to store just one Integer variable, no names etc never more than one record which I would like to read when the game launches and write everytime a level is completed.

Does anyone have a simple example or know of a similar tutorial (ie not a big bloaty one) that I can look at?

Thanks
Jamie

[dcrocha]

Well, I have not passed the code below through a compiler, so it can contain errors, but it looks like:

public void saveGame(int level) throws Exception {
  RecordStore rs = RecordStore.openRecordStore("MY_GAME",true);
  ByteArrayOutputStream baos = baos = new ByteArrayOutputStream();
  DataOutputStream dos = dos = new DataOutputStream(baos);
  dos.writeInt(level);
  byte[] data = baos.toByteArray();
  
  if(rs.getNumRecords() == 0) {
    rs.addRecord(data,0,data.length);
  }
  else {
    rs.setRecord(1,data,0,data.length);
  }
}

public int readGameLevel() throws Exception {
  RecordStore rs = RecordStore.openRecordStore("MY_GAME",true);
  
  if(rs.getNumRecords() == 0) throw new Exception("No level saved");

  byte[] data = rs.getRecord(1); //1 because there's only one record
  ByteArrayInputStream baos = baos = new ByteArrayInputStream(data);
  DataInputStream dos = dos = new DataInputStream(baos);
  int level = dos.readInt();

  return level;
}

Hope it helps.
Daniel

[jamiefuller]

Well, I have not passed the code below through a compiler, so it can contain errors, but it looks like:

Hope it helps.
Daniel

Many, Many Thanks Daniel, This is great work and I cant wait to try it, I'll let you know how I get on.

Thanks again.
Jamie

[jamiefuller]

This code is perfect, and has provided me a provided me a straight forward and very understandable answer. I can now understand it well enough to go on and write my own routines. This forum is sometimes a little vague with its responses but this one was ace.

Many thanks!
Jamie

[dcrocha]

Hi,

I'm glad it helped

Daniel