GeekyCompz HEALTH-DONOR Plugin

package uk.co.geekycompz.HealthDonor;

import org.bukkit.Bukkit;
import org.bukkit.command.Command;
import org.bukkit.command.CommandExecutor;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;

public class CmdExecutor implements CommandExecutor{

    HealthDonor plugin;
    public CmdExecutor (HealthDonor plugin){
        this.plugin = plugin;
    }

    @Override
    public boolean onCommand(CommandSender sender, Command cmd, String string, String[] args) {
        if(sender instanceof Player == false){
            sender.sendMessage("§4[§cHealthDonor§4] §7You must be in-game to execute this command.");
            return false;
        }

        Player senderplayer = (Player) sender;

        int ItemID = plugin.getConfig().getInt("ItemID");
        @SuppressWarnings("deprecation")
        int ItemIDinHand = senderplayer.getItemInHand().getTypeId();
        int maxHealth = plugin.getConfig().getInt("MaxDonation");

        double senderHealth = senderplayer.getHealth();

        if(args.length != 2){
            sender.sendMessage("§4[§cHealthDonor§4] §8§lUsage: §7/healthdonor <1-19 half hearts> <player>");
            return false;
        }

        if(args.length==2){
            if(plugin.getConfig().getBoolean("RequireItem") == true){
                if(ItemIDinHand != ItemID){
                    sender.sendMessage("§4[§cHealthDonor§4] §7You need the item, '" + ItemID + "' to donate.");
                    return false;
                }
            }
            if(Bukkit.getServer().getPlayer(args[1]) == null){
                sender.sendMessage("§4[§cHealthDonor§4] §7The player '" + args[1]+ "' is currently offline.");
                return false;
            }else{

            if(Bukkit.getServer().getPlayer(args[1]) == sender){
                sender.sendMessage("§4[§cHealthDonor§4] §7You cannot donate to yourself.");
                return false;
            }

            int health = Integer.parseInt(args[0]);
            Player targetplayer = (Player) Bukkit.getServer().getPlayer(args[1]);
            double targetHealth = targetplayer.getHealth();

            if(health >= maxHealth || health >= 19){
                sender.sendMessage("§4[§cHealthDonor§4] §7You can not donate that much health.");
                return false;
            }

            if(health >= senderHealth || health == senderHealth){
                sender.sendMessage("§4[§cHealthDonor§4] §7You do not have that much health.");
                return false;
            }
             if(targetHealth + health >= 20){
                sender.sendMessage("§4[§cHealthDonor§4] §7The player '" + targetplayer.getName() + "' cannot obtain that much health. §2(Health = " + targetHealth + "/20.0).");
                return false;
            }else{
                senderplayer.setHealth(senderHealth - health);
                targetplayer.setHealth(targetHealth + health);

                sender.sendMessage("§4[§cHealthDonor§4] §aYou donated '" + health + "' half hearts to '" + targetplayer.getName() + "'!");
                targetplayer.sendMessage("§4[§cHealthDonor§4] §aYou recieved '" + health + "' half hearts from '" + sender.getName() + "'!");

                if(plugin.getConfig().getBoolean("RemoveItem") == true){
                    senderplayer.getItemInHand().setAmount(0);
                }else{
                    return true;
                }
            }
                return true;
            }
        }
        return true;
    }
}