Re: Recording RoboCode battles from Java API

Hi Andrea,

First of all, the robocode.control.RobocodeEngine does not support saving 
the games. It should be added to the RobocodeEngine.

Note that you should only use classes that are a part of the public API. 
That is robocode.* classes like e.g. robocode.control.
You are not supposed to "hack" into the internals of Robocode by accessing 
net.sf.robocode classes. Those are internal and could change at any time.
Code based on internal classes might work now, but not in the future. Only 
the public API is guaranteed to be backward compatible.

What you could do instead is enabling "auto recording" in Robocode from the 
UI by selecting Options -> Preferences -> Common Options -> "Enable auto 
recording ..."

This feature will automatically record the battles and store these into the 
/battles directory under the /robocode directory.
A record will get a name like 
"20160306-233521-sample.RamFire-sample.Corners.zip.br" (br stands for 
Battle Record)

You can replay this in Robocode (Battle -> Open Record).

Alternatively, you could use the Robocode command-line option 
<http://robowiki.net/wiki/Robocode/Console_Usage>s, where you can set 
'-battle <battle file>' to run a specific battle specification and also set 
'-recordXML' in order to record the battle in XML format.
You can replay the records using '-replay <record file>' .

Note that you could run Robocode in a Java Process 
<https://docs.oracle.com/javase/7/docs/api/java/lang/Process.html>. If you 
do this, you should use robocode.sh as the first command-line argument and 
the add the command-line options, you need. :-)

I hope this helps?

Kind regards
- Flemming

Den fredag den 4. marts 2016 kl. 15.24.17 UTC+1 skrev Andrea Giardini:
>
> Hello everyone
>
> I'm trying to record battles from the java API. I would like to trigger 
> battles inside Java and then, at the end of the run, be able to see the 
> replay only of the battles i'm interested in.
>
> This is my code:
>
>
> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> import robocode.control.*;
> import net.sf.robocode.battle.events.BattleEventDispatcher;
> import net.sf.robocode.io.Logger;
> import net.sf.robocode.recording.BattleRecordFormat;
> import net.sf.robocode.recording.RecordManager;
> import net.sf.robocode.serialization.SerializableOptions;
> import net.sf.robocode.settings.SettingsManager;
>
> public class BattleRunner {
>      
>     // Path configuration
>     public static String roboCodePath = 
> "/home/andrea/git/AttProgIA_2016/RoboCode";
>
>     private static String recordFile = "/tmp/testingLOL.xml";
>     
>     // Recording 
>     private static SettingsManager settingsManager = new SettingsManager();
>     private static BattleEventDispatcher battleEventDispatcher = new 
> BattleEventDispatcher();
>     private static RecordManager recordManager = new 
> RecordManager(settingsManager);
>  
>     public static void main(String[] args) {
>  
>
>         // Disable log messages from Robocode
>         RobocodeEngine.setLogMessagesEnabled(false);
>
>         // Create the RobocodeEngine
>         RobocodeEngine engine = new RobocodeEngine(new 
> java.io.File(roboCodePath));
>
>  
>         // Setup the battle specification
>  
>         int numberOfRounds = 5;
>         BattlefieldSpecification battlefield = new 
> BattlefieldSpecification(800, 600); // 800x600
>         RobotSpecification[] selectedRobots = 
> engine.getLocalRepository("sample.RamFire,sample.Corners");
>  
>         BattleSpecification battleSpec = new 
> BattleSpecification(numberOfRounds, battlefield, selectedRobots);
>
>         // *********************
>         Logger.setLogListener(battleEventDispatcher);
>         recordManager.attachRecorder(battleEventDispatcher);
>         
>  
>         // Show the Robocode battle view
>         engine.setVisible(false);
>         
>         // *********************
>                
>         // Run our specified battle and let it run till it is over
>         engine.runBattle(battleSpec, true); // waits till the battle 
> finishes
>  
>         // Save the recording
>         
>         recordManager.saveRecord(recordFile, BattleRecordFormat.XML, new 
> SerializableOptions(false));
>         // Cleanup our RobocodeEngine
>         engine.close();
>  
>         // Make sure that the Java VM is shut down properly
>         System.exit(0);
>      }
>  }
>
>
> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Unfortunately all i get it's:
>
>
> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> No robocode.properties. Using defaults.
> Exception in thread "Application Thread" java.lang.NullPointerException
>     at 
> net.sf.robocode.recording.RecordManager.saveRecord(RecordManager.java:344)
>     at BattleRunner.main(BattleRunner.java:57)
>
>
> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Which i really don't understand... battles run properly (i tried to print 
> the results and it works correctly), but as soon as i try to save the 
> record i receive this null pointer exception. It looks like the recordInfo 
> variable inside RecordManager it's not initialized properly...
>
> Can you give me a hint? It's really annoying, and unfortunately i can't 
> find any documentation or examples online...
>
> Thank you
>
> Andrea
>

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