Added cycle module

src/com/redstoner/misc/Main.java

@@ -11,6 +11,7 @@ import com.redstoner.modules.adminchat.Adminchat;
 import com.redstoner.modules.adminnotes.AdminNotes;
 import com.redstoner.modules.chatgroups.Chatgroups;
 import com.redstoner.modules.check.Check;
+import com.redstoner.modules.cycle.Cycle;
 import com.redstoner.modules.damnspam.DamnSpam;
 import com.redstoner.modules.imout.Imout;
 import com.redstoner.modules.lagchunks.LagChunks;
@@ -27,7 +28,7 @@ import com.redstoner.modules.webtoken.WebToken;
 /** Main class. Duh.
  * 
  * @author Pepich */
-@Version(major = 1, minor = 3, revision = 5, compatible = -1)
+@Version(major = 1, minor = 3, revision = 6, compatible = -1)
 public class Main extends JavaPlugin
 {
 	public static JavaPlugin plugin;
@@ -44,7 +45,7 @@ public class Main extends JavaPlugin
 		ModuleLoader.addModule(AdminNotes.class);
 		// TODO: ModuleLoader.addModule(Calc.class);
 		// TODO: ModuleLoader.addModule(Chatalias.class);
-		// TODO: ModuleLoader.addModule(Cycle.class);
+		ModuleLoader.addModule(Cycle.class);
 		ModuleLoader.addModule(Chatgroups.class);
 		ModuleLoader.addModule(Check.class);
 		ModuleLoader.addModule(DamnSpam.class);

src/com/redstoner/modules/cycle/Cycle.java

@@ -0,0 +1,167 @@
+package com.redstoner.modules.cycle;
+
+import java.io.File;
+import java.util.UUID;
+
+import org.bukkit.GameMode;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.player.PlayerItemHeldEvent;
+import org.bukkit.inventory.Inventory;
+import org.bukkit.inventory.ItemStack;
+import org.json.simple.JSONArray;
+
+import com.nemez.cmdmgr.Command;
+import com.redstoner.annotations.AutoRegisterListener;
+import com.redstoner.annotations.Version;
+import com.redstoner.misc.JsonManager;
+import com.redstoner.misc.Main;
+import com.redstoner.misc.Utils;
+import com.redstoner.modules.Module;
+
+@AutoRegisterListener
+@Version(major = 1, minor = 0, revision = 0, compatible = 1)
+public class Cycle implements Module, Listener
+{
+	private boolean enabled = false;
+	private File cycleFile = new File(Main.plugin.getDataFolder(), "cycle.json");
+	private JSONArray no_cyclers;
+	
+	@Override
+	public void onEnable()
+	{
+		no_cyclers = JsonManager.getArray(cycleFile);
+		if (no_cyclers == null)
+			no_cyclers = new JSONArray();
+		enabled = true;
+	}
+	
+	@Override
+	public void onDisable()
+	{
+		saveCyclers();
+		enabled = false;
+	}
+	
+	@Override
+	public boolean enabled()
+	{
+		return enabled;
+	}
+	
+	private void saveCyclers()
+	{
+		JsonManager.save(no_cyclers, cycleFile);
+	}
+	
+	@Command(hook = "cycle_on")
+	public boolean cycleOn(CommandSender sender)
+	{
+		UUID uid = ((Player) sender).getUniqueId();
+		if (no_cyclers.remove(uid.toString()))
+		{
+			Utils.sendMessage(sender, null, "Cycle enabled!");
+			saveCyclers();
+		}
+		else
+			Utils.sendMessage(sender, null, "Cycle was already enabled!");
+		return true;
+	}
+	
+	@SuppressWarnings("unchecked")
+	@Command(hook = "cycle_off")
+	public boolean cycleOff(CommandSender sender)
+	{
+		UUID uid = ((Player) sender).getUniqueId();
+		if (!no_cyclers.contains(uid.toString()))
+		{
+			Utils.sendMessage(sender, null, "Cycle disabled!");
+			no_cyclers.add(uid.toString());
+			saveCyclers();
+		}
+		else
+			Utils.sendMessage(sender, null, "Cycle was already disabled!");
+		return true;
+	}
+	
+	@EventHandler
+	public void onInventoryCycle(PlayerItemHeldEvent event)
+	{
+		Player player = event.getPlayer();
+		UUID uid = player.getUniqueId();
+		if (!player.getGameMode().equals(GameMode.CREATIVE) || player.isSneaking()
+				|| no_cyclers.contains(uid.toString()))
+			return;
+		int prev_slot = event.getPreviousSlot();
+		int new_slot = event.getNewSlot();
+		if (prev_slot == 0 && new_slot == 8)
+			shift(player, true);
+		else if (prev_slot == 8 && new_slot == 0)
+			shift(player, false);
+	}
+	
+	private void shift(Player player, boolean down)
+	{
+		Inventory inv = player.getInventory();
+		ItemStack[] items = inv.getStorageContents();
+		int shift = down ? -9 : 9;
+		shift = (shift + items.length) % items.length;
+		for (int i = 0; i < 4; i++)
+		{
+			items = join(subset(items, shift, items.length), subset(items, 0, shift));
+			ItemStack[] hotbar = subset(items, 0, 9);
+			boolean found = false;
+			for (ItemStack item : hotbar)
+				if (item != null)
+				{
+					found = true;
+					break;
+				}
+			if (found)
+				break;
+		}
+		inv.setStorageContents(items);
+	}
+	
+	private ItemStack[] subset(ItemStack[] items, int start, int end)
+	{
+		ItemStack[] result = new ItemStack[end - start];
+		for (int i = start; i < end; i++)
+		{
+			result[i - start] = items[i];
+		}
+		return result;
+	}
+	
+	private ItemStack[] join(ItemStack[] items1, ItemStack[] items2)
+	{
+		ItemStack[] result = new ItemStack[items1.length + items2.length];
+		for (int i = 0; i < items1.length; i++)
+			result[i] = items1[i];
+		int offset = items1.length;
+		for (int i = 0; i < items2.length; i++)
+			result[i + offset] = items2[i];
+		return result;
+	}
+	
+	// @noformat
+	@Override
+	public String getCommandString()
+	{
+		return "command cycle {\n" + 
+				"    on {\n" + 
+				"        help Turns on cycle;\n" + 
+				"        type player;\n" + 
+				"        run cycle_on;\n" + 
+				"    }\n" + 
+				"    off {\n" + 
+				"        help Turns off cycle;\n" + 
+				"        type player;\n" + 
+				"        run cycle_off;\n" + 
+				"    }\n" + 
+				"}";
+	}
+	// format
+}