Pretty much all of security minus the gui.

and all the stuff I did that i forgot to comment.

core/features/registries/PlayerRegistry.java

@@ -0,0 +1,28 @@
+package appeng.core.features.registries;
+
+import net.minecraft.entity.player.EntityPlayer;
+import appeng.api.features.IPlayerRegistry;
+import appeng.core.WorldSettings;
+
+public class PlayerRegistry implements IPlayerRegistry
+{
+
+	@Override
+	public int getID(String username)
+	{
+		return WorldSettings.getInstance().getPlayerID( username );
+	}
+
+	@Override
+	public int getID(EntityPlayer player)
+	{
+		return WorldSettings.getInstance().getPlayerID( player.username );
+	}
+
+	@Override
+	public String getUsername(int id)
+	{
+		return WorldSettings.getInstance().getUsername( id );
+	}
+
+}