org.bukkit.command.defaults.GameRuleCommand Maven / Gradle / Ivy

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package org.bukkit.command.defaults;

import com.google.common.collect.ImmutableList;
import org.apache.commons.lang.Validate;
import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.World;
import org.bukkit.command.BlockCommandSender;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.HumanEntity;
import org.bukkit.util.StringUtil;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

@Deprecated
public class GameRuleCommand extends VanillaCommand {
  private static final List GAMERULE_STATES = ImmutableList.of("true", "false");

  public GameRuleCommand() {
    super("gamerule");
    this.description = "Sets a server's game rules";
    this.usageMessage = "/gamerule   OR /gamerule ";
    this.setPermission("bukkit.command.gamerule");
  }

  @Override
  public boolean execute(CommandSender sender, String currentAlias, String[] args) {
    if (!testPermission(sender)) return true;

    if (args.length > 0) {
      String rule = args[0];
      World world = getGameWorld(sender);

      if (world.isGameRule(rule)) {
        if (args.length > 1) {
          String value = args[1];

          world.setGameRuleValue(rule, value);
          Command.broadcastCommandMessage(sender, "Game rule " + rule + " has been set to: " + value);
        } else {
          String value = world.getGameRuleValue(rule);
          sender.sendMessage(rule + " = " + value);
        }
      } else {
        sender.sendMessage(ChatColor.RED + "No game rule called " + rule + " is available");
      }

      return true;
    } else {
      sender.sendMessage(ChatColor.RED + "Usage: " + usageMessage);
      sender.sendMessage("Rules: " + this.createString(getGameWorld(sender).getGameRules(), 0, ", "));

      return true;
    }
  }

  private World getGameWorld(CommandSender sender) {
    if (sender instanceof HumanEntity) {
      World world = ((HumanEntity) sender).getWorld();
      if (world != null) {
        return world;
      }
    } else if (sender instanceof BlockCommandSender) {
      return ((BlockCommandSender) sender).getBlock().getWorld();
    }

    return Bukkit.getWorlds().get(0);
  }

  @Override
  public List tabComplete(CommandSender sender, String alias, String[] args) throws IllegalArgumentException {
    Validate.notNull(sender, "Sender cannot be null");
    Validate.notNull(args, "Arguments cannot be null");
    Validate.notNull(alias, "Alias cannot be null");

    if (args.length == 1) {
      return StringUtil.copyPartialMatches(args[0], Arrays.asList(getGameWorld(sender).getGameRules()), new ArrayList());
    }

    if (args.length == 2) {
      return StringUtil.copyPartialMatches(args[1], GAMERULE_STATES, new ArrayList(GAMERULE_STATES.size()));
    }

    return ImmutableList.of();
  }
}