PVPfly - Somewhat

package me.RRServer.PF;

import java.util.ArrayList;

import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.Material;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.EntityType;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.entity.EntityDamageEvent;
import org.bukkit.event.entity.EntityDamageEvent.DamageCause;
import org.bukkit.event.entity.EntityShootBowEvent;
import org.bukkit.event.player.PlayerCommandPreprocessEvent;
import org.bukkit.event.player.PlayerItemConsumeEvent;
import org.bukkit.inventory.ItemStack;
import org.bukkit.plugin.java.JavaPlugin;

public class Main extends JavaPlugin implements Listener
{

	public void onEnable()
	{
		getLogger().info("PVPfly - Version 1.0 - has been enabled!");
		Bukkit.getServer().getPluginManager().registerEvents(this, this);
		getConfig().options().copyDefaults(true);
		saveConfig();
	}

	public void onDisable()
	{
		getLogger().info("PVPfly - Version 1.0 - has been disabled!");
	}

	ArrayList<Player> fly = new ArrayList<Player>();

	@EventHandler
	public void PlayerFall(EntityDamageEvent e)
	{
		if (e.getEntity().getType() == EntityType.PLAYER)
		{

			Player p = (Player) e.getEntity();

			if (e.getCause() == DamageCause.FALL)
			{
				if (fly.contains(p))
				{
					e.setCancelled(true);
				}
				else
				{
					return;
				}
			}
			else if (e.getCause() == DamageCause.ENTITY_ATTACK)
			{
				if (fly.contains(p))
				{
					if (!(p.hasPermission("PVPfly.bypassCombat")))
					{
					    fly.remove(p);
					    p.setAllowFlight(false);
				    }
					else
					{
						return;
					}
				}
				else
				{
					return;
				}
			}
			else
			{
				return;
			}
		}
	}

	@EventHandler
	public void PlayerConsume(PlayerItemConsumeEvent e)
	{

		Player p = e.getPlayer();
		ItemStack pot = e.getItem();

		if (pot.getType() == Material.POTION)
		{
			if (fly.contains(p))
			{
				if (!(p.hasPermission("PVPfly.bypassPotions")))
				{
					e.setCancelled(true);
					p.sendMessage(ChatColor.RED + "You cannot consume potions while flying!");
				}
				else
				{
					return;
				}
			}
			else
			{
				return;
			}
		}
	}

	@EventHandler
	public void onPlayerCmd(PlayerCommandPreprocessEvent e)
	{

		Player p = e.getPlayer();

		if ((e.getMessage().startsWith("/f map") || (e.getMessage().startsWith("/f map on"))))
		{
			if (fly.contains(p))
			{
				if (!(p.hasPermission("PVPfly.bypassFMap")))
				{
					e.setCancelled(true);
					p.sendMessage(ChatColor.RED + "You cannot use that commmand while flying!");
				}
				else
				{
					return;
				}
			}
			else
			{
				return;
			}
		}
	}

	@EventHandler
	public void PlayerBowshoot(EntityShootBowEvent e)
	{
		if (!(e.getEntity() instanceof Player))
		{
			return;
		}

		Player p = (Player) e.getEntity();
		ItemStack bow = p.getItemInHand();
		if (e.getBow() == bow)
		{
			if (fly.contains(p))
			{
				if (!(p.hasPermission("PVPfly.bypassBow")))
				{
					e.setCancelled(true);
					p.sendMessage(ChatColor.RED + "You cannot shoot your bow while flying!");
				}
				else
				{
					return;
				}
			}
			else
			{
				return;
			}
		}
		else
		{
			return;
		}
	}

	public boolean onCommand(CommandSender sender, Command cmd, String label, String[] args)
	{
		if (!(sender instanceof Player))
		{
			sender.sendMessage(ChatColor.RED + "That command can only be used by players!");
		}

		Player p = (Player) sender;

		if (cmd.getName().equalsIgnoreCase("fly"))
		{
			if (p.hasPermission("PVPfly.fly"))
			{
				if (args.length == 0)
				{
					p.sendMessage(ChatColor.RED + "Incorrect usage: /fly on|off");
				}
				else if (args.length == 1)
				{
					if (args[0].equalsIgnoreCase("on"))
					{
						if (p.hasPermission("PVPfly.fly"))
						{
							if (fly.contains(p))
							{
								p.sendMessage(ChatColor.RED + "You are already flying!");
							}
							else
							{
								fly.add(p);
								p.setAllowFlight(true);
								p.sendMessage(ChatColor.GREEN + "You can now fly!");
								Bukkit.getServer().dispatchCommand(p, "/f map off");
							}
						}
						else
						{
							p.sendMessage(ChatColor.RED + "You do not have the proper permission to use that command (PVPfly.fly)!");
						}
					}
					else if (args[0].equalsIgnoreCase("off"))
					{
						if (p.hasPermission("PVPfly.fly"))
						{
							if (!(fly.contains(p)))
							{
								p.sendMessage(ChatColor.RED + "You are not flying!");
							}
							else
							{
								fly.remove(p);
								p.setAllowFlight(false);
								p.sendMessage(ChatColor.GREEN + "You can no longer fly!");
							}
						}
						else
						{
							p.sendMessage(ChatColor.RED + "You do not have the proper permission to use that command (PVPfly.fly)!");
						}
					}
				}
			}
			else
			{
				p.sendMessage(ChatColor.RED + "You do not have the proper permission to use that command (PVPfly.fly)!");
			}
		}
		return false;
	}

}