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1  Game Development / Newbie & Debugging Questions / Re: Best way of loading player data? on: 2013-06-06 21:03:05
Just an added extra point onto the previous answer.


If you wish to have a more complicated amount of info (for example, saving a players inventory) then the XML format would be difficult. The way you could do it is to make a class called something like "PlayData" and then save it as an object. Like so:


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   public void saveData(PlayData pd) throws Exception{
        //The file it saves to
     File filePath ="saves";
      if(!filePath.exists()){
         //log.info("File path does not exist, creating it...");
        filePath.mkdirs();
      }//log.info("Got file path, attempting to get file...");
     File file = new File("saves/player.data");
      if(!file.exists()){
         file.createNewFile();
      }
      FileOutputStream save = new FileOutputStream(file);
      // Write object with ObjectOutputStream
     ObjectOutputStream saveOut = new ObjectOutputStream (save);
        //Now write it out
     SaveOut.writeObject (pd);
   }


And then to load it:

       public PlayerData getPlayerData() throws Exception{
      File filePath =new File("saves/player.data");
      if(!filePath.exists()){
         return null;
      }
      FileInputStream save = new FileInputStream(filePath);

      // Read object using ObjectInputStream
      ObjectInputStream saveIn = new ObjectInputStream (save);

      // Read an object
      Object obj = saveIn.readObject();

      if (obj instanceof PlayerData){
         return (PlayerData) obj;
      }else{
         return null;
      }
   }

So long as everything inside the PlayerData class (including itself) implements Serializable, then this will work.

Hope I helped!
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