スコアボードのテスト

plugin.yml

name: ScoreboardTestPlugin
main: jp.ucchy.ScoreboardTestPlugin
version: 0.0.1
author: ucchy
description: scoreboard test

commands:
  scoreboardtest:
    description: scoreboard test command
    aliases: [st]
    usage: /<command> 

ScoreboardTestPlugin.java

package jp.ucchy;

import org.bukkit.Bukkit;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;
import org.bukkit.plugin.java.JavaPlugin;
import org.bukkit.scoreboard.DisplaySlot;
import org.bukkit.scoreboard.Objective;
import org.bukkit.scoreboard.Scoreboard;

public class ScoreboardTestPlugin extends JavaPlugin {

    private Objective ob;
    
    /**
     * コマンド実行時に呼び出されるメソッド
     * @see org.bukkit.plugin.java.JavaPlugin#onCommand(org.bukkit.command.CommandSender, org.bukkit.command.Command, java.lang.String, java.lang.String[])
     */
    @Override
    public boolean onCommand(
            CommandSender sender, Command command,
            String label, String[] args) {

        if ( ob == null ) {
            Scoreboard sb = getServer().getScoreboardManager().getMainScoreboard();
            if ( sb.getObjective("testobjective") != null ) {
                ob = sb.getObjective("testobjective");
            } else {
                ob = sb.registerNewObjective("testobjective", "dummy");
                ob.setDisplaySlot(DisplaySlot.PLAYER_LIST);
            }
        }
        
        Player[] players = Bukkit.getOnlinePlayers();
        for ( Player p : players ) {
            int score = ob.getScore(p).getScore();
            ob.getScore(p).setScore(score - 1);
        }

        return true;
    }
}