Small plugin for bukkit I wrote to learn bukkit/eclipse.

vPlayersOnline/.classpath

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+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.6"/>
+	<classpathentry kind="lib" path="C:/MC Server/bukkit.jar"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>

vPlayersOnline/.project

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+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>vPlayersOnline</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>

vPlayersOnline/.settings/org.eclipse.jdt.core.prefs

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+#Fri Jan 14 13:46:19 PST 2011
+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.6
+org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
+org.eclipse.jdt.core.compiler.compliance=1.6
+org.eclipse.jdt.core.compiler.debug.lineNumber=generate
+org.eclipse.jdt.core.compiler.debug.localVariable=generate
+org.eclipse.jdt.core.compiler.debug.sourceFile=generate
+org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
+org.eclipse.jdt.core.compiler.source=1.6

vPlayersOnline/bin/plugin.yml

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+name: PlayersOnline
+main: com.bukkit.nossr50.vPlayersOnline.vPlayersOnline
+version: 1.0

vPlayersOnline/src/com/bukkit/nossr50/vPlayersOnline/POBlockListener.java

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+package com.bukkit.nossr50.vPlayersOnline;
+
+import org.bukkit.event.block.BlockListener;
+
+
+/**
+ * vPlayersOnline block listener
+ * @author nossr50
+ */
+public class POBlockListener extends BlockListener {
+    private final vPlayersOnline plugin;
+
+    public POBlockListener(final vPlayersOnline plugin) {
+        this.plugin = plugin;
+    }
+
+    //put all Block related code here
+}

vPlayersOnline/src/com/bukkit/nossr50/vPlayersOnline/POPlayerListener.java

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+package com.bukkit.nossr50.vPlayersOnline;
+
+import org.bukkit.Player;
+import org.bukkit.Color;
+import org.bukkit.event.player.PlayerEvent;
+import org.bukkit.event.player.PlayerListener;
+
+/**
+ * Handle events for all Player related events
+ * @author nossr50
+ */
+public class POPlayerListener extends PlayerListener {
+    private final vPlayersOnline plugin;
+    
+    public POPlayerListener(vPlayersOnline instance) {
+        this.plugin = instance;
+    }
+
+    //Insert Player related code here
+    public void onPlayerJoin(PlayerEvent event) {
+    Player player = event.getPlayer();
+    Player players[] = plugin.getServer().getOnlinePlayers();
+    int x = 0;
+    for(Player herp: players){
+    	x++;
+    }
+    player.sendMessage("There are " + x + " players online");
+    }
+    }

vPlayersOnline/src/com/bukkit/nossr50/vPlayersOnline/vPlayersOnline.java

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+package com.bukkit.nossr50.vPlayersOnline;
+import java.io.File;
+import java.util.HashMap;
+import org.bukkit.Player;
+import org.bukkit.Server;
+import org.bukkit.event.Event.Priority;
+import org.bukkit.event.Event;
+import org.bukkit.plugin.PluginDescriptionFile;
+import org.bukkit.plugin.PluginLoader;
+import org.bukkit.plugin.java.JavaPlugin;
+import org.bukkit.plugin.PluginManager;
+
+/**
+ * PlayersOnline for Bukkit
+ *
+ * @author nossr50
+ */
+public class vPlayersOnline extends JavaPlugin {
+    private final POPlayerListener playerListener = new POPlayerListener(this);
+    private final POBlockListener blockListener = new POBlockListener(this);
+    private final HashMap<Player, Boolean> debugees = new HashMap<Player, Boolean>();
+    public final static String name = "vPlayersOnline";
+    public final static String version = "1.0";
+	
+
+    public vPlayersOnline(PluginLoader pluginLoader, Server instance, PluginDescriptionFile desc, File plugin, ClassLoader cLoader) {
+    	super(pluginLoader, instance, desc, plugin, cLoader);
+        
+        // TODO: Place any custom initialization code here
+
+        // NOTE: Event registration should be done in onEnable not here as all events are unregistered when a plugin is disabled
+    }
+
+   
+
+    public void onEnable() {
+        // TODO: Place any custom enable code here including the registration of any events
+        // Register our events
+    	getServer().getPluginManager().registerEvent(Event.Type.PLAYER_JOIN, playerListener, Priority.Normal, this);
+        getServer().getPluginManager().registerEvent(Event.Type.PLAYER_QUIT, playerListener, Priority.Normal, this);
+    	PluginManager pm = getServer().getPluginManager();
+        // EXAMPLE: Custom code, here we just output some info so we can check all is well
+        PluginDescriptionFile pdfFile = this.getDescription();
+        System.out.println( pdfFile.getName() + " version " + pdfFile.getVersion() + " is enabled!" );
+    }
+    public void onDisable() {
+        // TODO: Place any custom disable code here
+
+        // NOTE: All registered events are automatically unregistered when a plugin is disabled
+
+        // EXAMPLE: Custom code, here we just output some info so we can check all is well
+        System.out.println("Goodbye world!");
+    }
+    public boolean isDebugging(final Player player) {
+        if (debugees.containsKey(player)) {
+            return debugees.get(player);
+        } else {
+            return false;
+        }
+    }
+
+    public void setDebugging(final Player player, final boolean value) {
+        debugees.put(player, value);
+    }
+}
+

vPlayersOnline/src/plugin.yml

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+name: PlayersOnline
+main: com.bukkit.nossr50.vPlayersOnline.vPlayersOnline
+version: 1.0