Allow Hide Names in Rumble

robocode.content/src/main/resources/roborumble/meleerumble.txt

@@ -86,6 +86,12 @@ NUMBATTLES=3
 ROUNDS=35
 MELEEBOTS=10
 
+# HIDENAMES
+#           If set to YES, robots only see their enemies by anonymous names like
+#           #1 instead of by their real names. Use YES or NOT.
+
+HIDENAMES=NOT
+
 # INPUT     Input battles file that is generated by the rumble automatically.
 #           The rumble uses this file for selecting which robots that must
 #           battle against each other.

robocode.content/src/main/resources/roborumble/roborumble.txt

@@ -83,6 +83,12 @@ FIELDH=600
 NUMBATTLES=50
 ROUNDS=35
 
+# HIDENAMES
+#           If set to YES, robots only see their enemies by anonymous names like
+#           #1 instead of by their real names. Use YES or NOT.
+
+HIDENAMES=NOT
+
 # INPUT     Input battles file that is generated by the rumble automatically.
 #           The rumble uses this file for selecting which robots that must
 #           battle against each other.

robocode.content/src/main/resources/roborumble/teamrumble.txt

@@ -83,6 +83,12 @@ FIELDH=1200
 NUMBATTLES=10
 ROUNDS=10
 
+# HIDENAMES
+#           If set to YES, robots only see their enemies by anonymous names like
+#           #1 instead of by their real names. Use YES or NOT.
+
+HIDENAMES=NOT
+
 # INPUT     Input battles file that is generated by the rumble automatically.
 #           The rumble uses this file for selecting which robots that must
 #           battle against each other.

robocode.content/src/main/resources/roborumble/twinduel.txt

@@ -83,6 +83,12 @@ FIELDH=800
 NUMBATTLES=10
 ROUNDS=75
 
+# HIDENAMES
+#           If set to YES, robots only see their enemies by anonymous names like
+#           #1 instead of by their real names. Use YES or NOT.
+
+HIDENAMES=NOT
+
 # INPUT     Input battles file that is generated by the rumble automatically.
 #           The rumble uses this file for selecting which robots that must
 #           battle against each other.

robocode.core/src/main/java/net/sf/robocode/host/RobotStatics.java

@@ -56,12 +56,16 @@ public final class RobotStatics implements IRobotStatics, Serializable {
 	private final int robotIndex;
 	private final int teamIndex;
 
+	// One object, like the real name, because many robots compare enemy names with == or !=
+	private final String annonymousName;
+
 	public RobotStatics(RobotSpecification robotSpecification, String name, String suffix, boolean isLeader, BattleRules rules, String teamName,
 			List<String> teamMembers, int robotIndex, int teamIndex) {
 		IRobotItem robotItem = (IRobotItem) HiddenAccess.getFileSpecification(robotSpecification);
 
 		this.robotIndex = robotIndex;
 		this.teamIndex = teamIndex;
+		this.annonymousName = "#" + robotIndex;
 
 		this.shortClassName = robotItem.getShortClassName();
 		this.fullClassName = robotItem.getFullClassName();
@@ -120,14 +124,15 @@ private RobotStatics(String robocodeVersion, boolean isJuniorRobot, boolean isIn
 		this.teamName = teamName;
 		this.robotIndex = robotIndex;
 		this.teamIndex = teamIndex;
+		this.annonymousName = "#" + robotIndex;
 	}
 
 	public String getRobocodeVersion() {
 		return robocodeVersion;
 	}
 
 	public String getAnnonymousName() {
-		return "#" + robotIndex;
+		return annonymousName;
 	}
 
 	public boolean isJuniorRobot() {

robocode.roborumble/build.gradle.kts

@@ -8,6 +8,7 @@ dependencies {
     runtimeOnly(project(":robocode.core"))
     runtimeOnly(project(":robocode.battle"))
     runtimeOnly(libs.codesize)
+    testImplementation(testLibs.junit)
 }
 
 description = "Roborumble Client"

robocode.roborumble/src/main/java/net/sf/robocode/roborumble/battlesengine/BattlesRunner.java

@@ -33,7 +33,10 @@ public class BattlesRunner {
 	private final int numrounds;
 	private final int fieldlen;
 	private final int fieldhei;
+	private final boolean hidenames;
 	private final String outfile;
+	// The settings saved with each battle's results, which an upload may only read much later
+	private final StringBuilder resultSettings = new StringBuilder();
 	private final String user;
 	private final String game;
 	private static RobotResults[] lastResults;
@@ -45,6 +48,10 @@ public BattlesRunner(String game, Properties parameters) {
 		numrounds = Integer.parseInt(parameters.getProperty("ROUNDS", "10"));
 		fieldlen = Integer.parseInt(parameters.getProperty("FIELDL", "800"));
 		fieldhei = Integer.parseInt(parameters.getProperty("FIELDH", "600"));
+		hidenames = parameters.getProperty("HIDENAMES", "NOT").equals("YES");
+		if (hidenames) {
+			resultSettings.append(",HIDENAMES=YES");
+		}
 		outfile = parameters.getProperty("OUTPUT", "");
 		user = parameters.getProperty("USER", "");
 		this.game = game;
@@ -97,8 +104,9 @@ public void runBattlesImpl(boolean melee) {
 				final String teamLast = robotsList[robotsList.length - 1].getTeamId();
 
 				if (team0 == null || !team0.equals(teamLast)) {
-					final BattleSpecification specification = new BattleSpecification(battle.getNumRounds(),
-							battle.getBattlefield(), robotsList);
+					final BattleSpecification specification = new BattleSpecification(battle.getBattlefield(),
+							battle.getNumRounds(), battle.getInactivityTime(), battle.getGunCoolingRate(),
+							battle.getSentryBorderSize(), hidenames, robotsList);
 
 					lastResults = null;
 					engine.runBattle(specification, true);
@@ -171,7 +179,7 @@ private void dumpResults(PrintStream outtxt, RobotResults[] results, RumbleBattl
 
 						outtxt.println(
 								game + "," + numrounds + "," + fieldlen + "x" + fieldhei + "," + user + ","
-										+ System.currentTimeMillis() + "," + rumbleBattle.getRunonly());
+										+ System.currentTimeMillis() + "," + rumbleBattle.getRunonly() + resultSettings);
 						outtxt.println(name1 + "," + points1 + "," + bullets1 + "," + survival1);
 						outtxt.println(name2 + "," + points2 + "," + bullets2 + "," + survival2);
 					}

robocode.roborumble/src/main/java/net/sf/robocode/roborumble/netengine/ResultsUpload.java

@@ -171,7 +171,8 @@ public void uploadResults() {
 			final String commonData = "&version=1" + "&client=" + client + "&teams=" + teams + "&melee=" + melee
 					+ "&rounds=" + header[1] + "&field=" + header[2] + "&user=" + user + "&time=" + header[4] + "&fname="
 					+ first[0] + "&fscore=" + first[1] + "&fbulletd=" + first[2] + "&fsurvival=" + first[3] + "&sname="
-					+ second[0] + "&sscore=" + second[1] + "&sbulletd=" + second[2] + "&ssurvival=" + second[3];
+					+ second[0] + "&sscore=" + second[1] + "&sbulletd=" + second[2] + "&ssurvival=" + second[3]
+					+ (hasSetting(header, "HIDENAMES=YES") ? "&hidenames=YES" : "");
 
 			String data = "game=" + game + commonData;
 
@@ -233,6 +234,19 @@ private void saveError(PrintStream outtxt, String match, String bot1, String bot
 		System.out.println("Unable to upload results " + match + " " + bot1 + " " + bot2);
 	}
 
+	/**
+	 * Returns whether a battle's saved header has a setting. Settings come after the match type, and a header
+	 * saved by an earlier version of the client has none.
+	 */
+	static boolean hasSetting(String[] header, String setting) {
+		for (int i = 6; i < header.length; i++) {
+			if (header[i].equals(setting)) {
+				return true;
+			}
+		}
+		return false;
+	}
+
 	private boolean senddata(String game, String data, PrintStream outtxt, boolean saveonerror, Vector<String> results, int i, PrintStream battlesnum, PrintStream prioritybattles) {
 		boolean errorsfound = false;
 		OutputStream out = null;

robocode.roborumble/src/test/java/net/sf/robocode/roborumble/netengine/ResultsUploadTest.java

@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2001-2026 Mathew A. Nelson and Robocode contributors
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * https://robocode.sourceforge.io/license/epl-v10.html
+ */
+package net.sf.robocode.roborumble.netengine;
+
+
+import org.junit.Assert;
+import org.junit.Test;
+
+
+/**
+ * @author Robert Maupin (original)
+ */
+public class ResultsUploadTest {
+
+	@Test
+	public void aHeaderCanHoldSeveralSettings() {
+		String[] header = "game,35,800x600,user,1000,GENERAL,ONE=YES,TWO=YES".split(",");
+
+		Assert.assertTrue(ResultsUpload.hasSetting(header, "ONE=YES"));
+		Assert.assertTrue(ResultsUpload.hasSetting(header, "TWO=YES"));
+		Assert.assertFalse(ResultsUpload.hasSetting(header, "THREE=YES"));
+	}
+
+	@Test
+	public void aHeaderFromAnEarlierClientHasNoSettings() {
+		Assert.assertFalse(ResultsUpload.hasSetting("game,35,800x600,user,1000,GENERAL".split(","), "ONE=YES"));
+		Assert.assertFalse(ResultsUpload.hasSetting("game,35,800x600,user,1000".split(","), "ONE=YES"));
+	}
+
+	@Test
+	public void onlyTheSettingsCount() {
+		Assert.assertFalse(ResultsUpload.hasSetting("game,35,800x600,ONE=YES,1000,ONE=YES".split(","), "ONE=YES"));
+	}
+}

robocode.tests.robots/src/main/java/tested/robots/HiddenNames.java

@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2001-2026 Mathew A. Nelson and Robocode contributors
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * https://robocode.sourceforge.io/license/epl-v10.html
+ */
+package tested.robots;
+
+
+import robocode.AdvancedRobot;
+import robocode.ScannedRobotEvent;
+
+
+/**
+ * Reports the enemy names it sees, and whether each name is the same object as the last one.
+ *
+ * @author Robert Maupin (original) 
+ */
+public class HiddenNames extends AdvancedRobot {
+	private String lastName;
+
+	@Override
+	public void run() {
+		while (true) {
+			turnRadarRight(360);
+		}
+	}
+
+	@Override
+	public void onScannedRobot(ScannedRobotEvent e) {
+		String name = e.getName();
+
+		out.println("Enemy name: " + name);
+		if (lastName != null && name != lastName) {
+			out.println("The name is a new object");
+		}
+		lastName = name;
+	}
+}

robocode.tests/src/test/java/net/sf/robocode/test/robots/TestHiddenNames.java

@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2001-2026 Mathew A. Nelson and Robocode contributors
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * https://robocode.sourceforge.io/license/epl-v10.html
+ */
+package net.sf.robocode.test.robots;
+
+
+import net.sf.robocode.test.helpers.Assert;
+import net.sf.robocode.test.helpers.RobocodeTestBed;
+import org.junit.Test;
+import robocode.control.BattleSpecification;
+import robocode.control.RobotSpecification;
+import robocode.control.events.TurnEndedEvent;
+
+
+/**
+ * Many robots compare enemy names with == or !=, which works for real names because a robot's name is one
+ * object. Hidden names must behave the same, or those robots lose track of their enemies.
+ *
+ * @author Robert Maupin (original)
+ */
+public class TestHiddenNames extends RobocodeTestBed {
+	private boolean sawHiddenName;
+
+	@Test
+	public void run() {
+		super.run();
+		Assert.assertTrue("The robot never saw a hidden name", sawHiddenName);
+	}
+
+	@Override
+	public String getRobotName() {
+		return "tested.robots.HiddenNames";
+	}
+
+	@Override
+	public String getEnemyName() {
+		return "sample.Target";
+	}
+
+	@Override
+	protected void runBattle(String robotList, int numRounds, String initialPositions) {
+		RobotSpecification[] robots = engine.getLocalRepository(robotList);
+		BattleSpecification battle = new BattleSpecification(battleFieldSpec, numRounds, 450, 0.1, 100, true, robots);
+
+		engine.runBattle(battle, initialPositions, true, false);
+	}
+
+	@Override
+	public void onTurnEnded(TurnEndedEvent event) {
+		super.onTurnEnded(event);
+		String out = event.getTurnSnapshot().getRobots()[0].getOutputStreamSnapshot();
+
+		if (out.contains("Enemy name: #")) {
+			sawHiddenName = true;
+		}
+		if (out.contains("sample.Target")) {
+			Assert.fail("The robot saw the enemy's real name");
+		}
+		if (out.contains("The name is a new object")) {
+			Assert.fail("The hidden name was not the same object each time");
+		}
+	}
+}