diff --git a/pom.xml b/pom.xml
index 59d9f90a04..aa623a25b1 100644
--- a/pom.xml
+++ b/pom.xml
@@ -27,6 +27,11 @@
       <type>jar</type>
       <scope>compile</scope>
     </dependency>
+    <dependency>
+      <groupId>net.sf.jopt-simple</groupId>
+      <artifactId>jopt-simple</artifactId>
+      <version>3.2</version>
+    </dependency>
   </dependencies>
   <!-- This builds a completely 'ready to start' jar with all dependencies inside -->
   <build>
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index 333e00900f..c3b2568cf4 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -11,6 +11,7 @@ import java.util.Iterator;
 import java.util.List;
 import java.util.logging.Level;
 import java.util.logging.Logger;
+import joptsimple.OptionSet;
 
 import org.bukkit.craftbukkit.CraftServer;
 
@@ -37,14 +38,18 @@ implements ICommandListener, Runnable {
     public boolean n;
 
     public CraftServer server; // CraftBukkit
+    public OptionSet options; // CraftBukkit
 
-    public MinecraftServer() {
+    // CraftBukkit: Added arg "OptionSet options"
+    public MinecraftServer(final OptionSet options) {
         o = true;
         g = false;
         h = 0;
         p = new ArrayList<IUpdatePlayerListBox>();
         q = Collections.synchronizedList(new ArrayList<ServerCommand>());
         new ThreadSleepForever(this);
+
+        this.options = options; // CraftBukkit
     }
 
     // CraftBukkit: added throws UnknownHostException
@@ -60,7 +65,7 @@ implements ICommandListener, Runnable {
             a.warning("To start the server with more ram, launch it as \"java -Xmx1024M -Xms1024M -jar minecraft_server.jar\"");
         }
         a.info("Loading properties");
-        d = new PropertyManager(new File("server.properties"));
+        d = new PropertyManager(options); // Craftbukkit
         String s = d.a("server-ip", "");
 
         l = d.a("online-mode", true);
@@ -450,18 +455,17 @@ implements ICommandListener, Runnable {
         p.add(iupdateplayerlistbox);
     }
 
-    public static void main(String args[]) {
+    // Craftbukkit start - replaces main(String args[])
+    public static void main(final OptionSet options) {
         try {
-            MinecraftServer minecraftserver = new MinecraftServer();
+            MinecraftServer minecraftserver = new MinecraftServer(options);
 
-            if (!java.awt.GraphicsEnvironment.isHeadless() && (args.length <= 0 || !args[0].equals("nogui"))) {
-                ServerGUI.a(minecraftserver);
-            }
             (new ThreadServerApplication("Server thread", minecraftserver)).start();
         } catch (Exception exception) {
             a.log(Level.SEVERE, "Failed to start the minecraft server", exception);
         }
     }
+    // Craftbukkit end
 
     public File a(String s) {
         return new File(s);
diff --git a/src/main/java/net/minecraft/server/PropertyManager.java b/src/main/java/net/minecraft/server/PropertyManager.java
new file mode 100644
index 0000000000..4be80a802b
--- /dev/null
+++ b/src/main/java/net/minecraft/server/PropertyManager.java
@@ -0,0 +1,92 @@
+package net.minecraft.server;
+
+
+import java.io.*;
+import java.util.Properties;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+import joptsimple.OptionSet;
+
+
+public class PropertyManager {
+
+    public static Logger a = Logger.getLogger("Minecraft");
+    private Properties b;
+    private File c;
+
+    private OptionSet options = null; // Craftbukkit
+
+    public PropertyManager(File file) {
+        b = new Properties();
+        c = file;
+        if (file.exists()) {
+            try {
+                b.load(new FileInputStream(file));
+            } catch (Exception exception) {
+                a.log(Level.WARNING, (new StringBuilder()).append("Failed to load ").append(file).toString(), exception);
+                a();
+            }
+        } else {
+            a.log(Level.WARNING, (new StringBuilder()).append(file).append(" does not exist").toString());
+            a();
+        }
+    }
+
+    // Craftbukkit start
+    public PropertyManager(final OptionSet options) {
+        this((File)options.valueOf("config"));
+
+        this.options = options;
+    }
+
+    private <T> T getOverride(String name, T value) {
+        if ((options != null) && (options.has(name))) {
+            return (T)options.valueOf(name);
+        }
+
+        return value;
+    }
+    // Craftbukkit end
+
+    public void a() {
+        a.log(Level.INFO, "Generating new properties file");
+        b();
+    }
+
+    public void b() {
+        try {
+            b.store(new FileOutputStream(c), "Minecraft server properties");
+        } catch (Exception exception) {
+            a.log(Level.WARNING, (new StringBuilder()).append("Failed to save ").append(c).toString(), exception);
+            a();
+        }
+    }
+
+    public String a(String s, String s1) {
+        if (!b.containsKey(s)) {
+            b.setProperty(s, getOverride(s, s1)); // Craftbukkit
+            b();
+        }
+        return getOverride(s, b.getProperty(s, s1)); // Craftbukkit
+    }
+
+    public int a(String s, int i) {
+        try {
+            return getOverride(s, Integer.parseInt(a(s, String.valueOf(i)))); // Craftbukkit
+        } catch (Exception exception) {
+            b.setProperty(s, getOverride(s, i).toString()); // Craftbukkit
+        }
+        return getOverride(s, i); // Craftbukkit
+    }
+
+    public boolean a(String s, boolean flag) {
+        try {
+            return getOverride(s, Boolean.parseBoolean(a(s, String.valueOf(flag)))); // Craftbukkit
+        } catch (Exception exception) {
+            b.setProperty(s, getOverride(s, flag).toString()); // Craftbukkit
+        }
+        return getOverride(s, flag); // Craftbukkit
+    }
+
+}
+
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
index e575805136..216a26b6e5 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
@@ -27,7 +27,7 @@ public final class CraftServer implements Server {
 
         pluginManager.RegisterInterface(JavaPluginLoader.class);
 
-        File pluginFolder = new File("plugins");
+        File pluginFolder = (File)console.options.valueOf("plugins");
 
         if (pluginFolder.exists()) {
             try {
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
index 5cd587b200..31b9d0f0e3 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
@@ -42,6 +42,10 @@ public class CraftWorld implements World {
 
         return block;
     }
+    
+    public int getHighestBlockYAt(int x, int z) {
+    	return world.d(x, z);
+    }
 
     public Chunk getChunkAt(int x, int z) {
         ChunkCoordinate loc = new ChunkCoordinate(x, z);
diff --git a/src/main/java/org/bukkit/craftbukkit/Main.java b/src/main/java/org/bukkit/craftbukkit/Main.java
index 786e56d840..db33837468 100644
--- a/src/main/java/org/bukkit/craftbukkit/Main.java
+++ b/src/main/java/org/bukkit/craftbukkit/Main.java
@@ -1,16 +1,86 @@
 
 package org.bukkit.craftbukkit;
 
+import java.io.File;
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.List;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+import joptsimple.OptionParser;
+import joptsimple.OptionSet;
 import net.minecraft.server.MinecraftServer;
 
 public class Main {
     public static void main(String[] args) {
         // Todo: Installation script
+        OptionParser parser = new OptionParser() {
+            {
+                acceptsAll(asList("?", "help"), "Show the help");
+
+                acceptsAll(asList("c", "config"), "Properties file to use")
+                        .withRequiredArg()
+                        .ofType(File.class)
+                        .defaultsTo(new File("server.properties"))
+                        .describedAs("Properties file");
+
+                acceptsAll(asList("P", "plugins"), "Plugin directory to use")
+                        .withRequiredArg()
+                        .ofType(File.class)
+                        .defaultsTo(new File("plugins"))
+                        .describedAs("Plugin directory");
+
+                acceptsAll(asList("h", "host", "server-ip"), "Host to listen on")
+                        .withRequiredArg()
+                        .ofType(String.class)
+                        .describedAs("Hostname or IP");
+
+                acceptsAll(asList("w", "world", "level-name"), "World directory")
+                        .withRequiredArg()
+                        .ofType(String.class)
+                        .describedAs("World dir");
+
+                acceptsAll(asList("p", "port", "server-port"), "Port to listen on")
+                        .withRequiredArg()
+                        .ofType(Integer.class)
+                        .describedAs("Port");
+
+                acceptsAll(asList("o", "online-mode"), "Whether to use online authentication")
+                        .withRequiredArg()
+                        .ofType(Boolean.class)
+                        .describedAs("Authentication");
+
+                acceptsAll(asList("s", "size", "max-players"), "Maximum amount of players")
+                        .withRequiredArg()
+                        .ofType(Integer.class)
+                        .describedAs("Server size");
+            }
+        };
+
+        OptionSet options = null;
 
         try {
-            MinecraftServer.main(args);
-        } catch (Throwable t) {
-            t.printStackTrace();
+            options = parser.parse(args);
+        } catch (joptsimple.OptionException ex) {
+            Logger.getLogger(Main.class.getName()).log(Level.SEVERE, ex.getLocalizedMessage());
+        }
+
+        if ((options == null) || (options.has("?"))) {
+            try {
+                parser.printHelpOn(System.out);
+            } catch (IOException ex) {
+                Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
+            }
+        } else {
+            try {
+                MinecraftServer.main(options);
+            } catch (Throwable t) {
+                t.printStackTrace();
+            }
         }
     }
+
+    private static List<String> asList(String... params) {
+        return Arrays.asList(params);
+    }
 }