Chooser.class

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package cramer.jason;
import org.bukkit.Bukkit;
import org.bukkit.plugin.java.JavaPlugin;
import org.bukkit.entity.Player;
import java.util.ArrayList;
import java.util.Random;
import org.bukkit.ChatColor;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.entity.PlayerDeathEvent;
import org.bukkit.event.player.PlayerQuitEvent;

/**
 *
 * @author Jason
 * Description:
 * Type command to get name added to volunteer list. when there are 3 players in it, it will run a method that picks a
 * random name from he volunteer list and adds it to the chosen list. When a chosen dies, it will pick another random
 * player if there are 3 players at least. Object of game is to kill the chosen player, it's like a manhunt. I realize
 * this is pretty simple stuff but I literally just made it today and I'm planning on adding a method that gives a reward
 * to whoever kills the chosen one (if applicable), also a second command that tells you who the chosen one is.
 */
public class BlankPlugin extends JavaPlugin implements Listener {
    @Override
    public void onEnable() {
        Bukkit.getServer().getPluginManager().registerEvents(this, this);
    }

    @Override
    public void onDisable() {
    }

    ArrayList<String> chosen = new ArrayList<String>();
    ArrayList<String> volunteer = new ArrayList<String>();

    public boolean onCommand(CommandSender sender, Command cmd, String commandLabel, String[] args) {
		if (cmd.getName().equalsIgnoreCase("volunteer")) {
			if (!(sender instanceof Player)) {
				sender.sendMessage(ChatColor.RED + "The console cannot be chosen!");
				return true;
			}

			Player player = (Player) sender;

			if (volunteer.contains(player.getName())) {
				volunteer.remove(player.getName());
				sender.sendMessage(ChatColor.GREEN + "Player " + player.getName() + " has been removed from the volunteer list.");
				return true;
			} else {
		        volunteer.add(player.getName());
		        if (volunteer.size() == 3) {
		        		choosePlayer();
		        }
		        sender.sendMessage(ChatColor.GREEN + "Player " + player.getName() + " has been added to the volunteer list.");
			}
	    }
        return true;
    }

    public void choosePlayer() {
    		Random r = new Random();
    		String s = volunteer.get(r.nextInt(volunteer.size()));
    		chosen.add(s);
    		Bukkit.broadcastMessage(ChatColor.GREEN + "Player " + s + " has been chosen!");
    }

    @EventHandler
    public void onPlayerDeath(PlayerDeathEvent e) {
        Player p = e.getEntity().getPlayer();
        if (chosen.contains(p.getName())) {
            Bukkit.broadcastMessage(ChatColor.RED + "The Chosen player " + p.getName() + " has died!");
            chosen.remove(p.getName());
            if (volunteer.size() >= 3) {
            		choosePlayer();
            }
        }
    }

    @EventHandler
    public void onPlayerQuit(PlayerQuitEvent e) {
    		Player p = e.getPlayer();
    		if (chosen.contains(p.getName())) {
    			Bukkit.broadcastMessage(ChatColor.RED + "The Chosen player " + p.getName() + " has quit!");
    			chosen.remove(p.getName());
    			if (volunteer.size() >= 3) {
            		choosePlayer();
            }
    		}
    		if (volunteer.contains(p.getName())) {
    			volunteer.remove(p.getName());
    		}
    }

}