LocationObjective.java

/**
 * BetonQuest - advanced quests for Bukkit
 * Copyright (C) 2016  Jakub "Co0sh" Sapalski
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package pl.betoncraft.betonquest.objectives;

import org.bukkit.Bukkit;
import org.bukkit.Location;
import org.bukkit.event.EventHandler;
import org.bukkit.event.HandlerList;
import org.bukkit.event.Listener;
import org.bukkit.event.player.PlayerMoveEvent;

import pl.betoncraft.betonquest.BetonQuest;
import pl.betoncraft.betonquest.Instruction;
import pl.betoncraft.betonquest.InstructionParseException;
import pl.betoncraft.betonquest.QuestRuntimeException;
import pl.betoncraft.betonquest.VariableNumber;
import pl.betoncraft.betonquest.api.Objective;
import pl.betoncraft.betonquest.utils.Debug;
import pl.betoncraft.betonquest.utils.LocationData;
import pl.betoncraft.betonquest.utils.PlayerConverter;

/**
 * Player has to reach certain radius around the specified location
 * 
 * @author Jakub Sapalski
 */
public class LocationObjective extends Objective implements Listener {

	private final LocationData loc;
	private final VariableNumber range;

	public LocationObjective(Instruction instruction) throws InstructionParseException {
		super(instruction);
		template = ObjectiveData.class;
		loc = instruction.getLocation();
		range = instruction.getVarNum();
	}

	@EventHandler
	public void onMove(PlayerMoveEvent event) {
		try {
			String playerID = PlayerConverter.getID(event.getPlayer());
			Location location = loc.getLocation(playerID);
			if (containsPlayer(playerID) && event.getPlayer().getWorld().equals(location.getWorld())) {
				double r = range.getDouble(playerID);
				if (event.getTo().distanceSquared(location) <= r * r && super.checkConditions(playerID)) {
					completeObjective(playerID);
				}
			}
		} catch (QuestRuntimeException e) {
			Debug.error("Error while handling '" + instruction.getID() + "' objective: " + e.getMessage());
		}
	}

	@Override
	public void start() {
		Bukkit.getPluginManager().registerEvents(this, BetonQuest.getInstance());
	}

	@Override
	public void stop() {
		HandlerList.unregisterAll(this);
	}

	@Override
	public String getDefaultDataInstruction() {
		return "";
	}

	@Override
	public String getProperty(String name, String playerID) {
		if (name.equalsIgnoreCase("location")) {
			Location location;
			try {
				location = loc.getLocation(playerID);
			} catch (QuestRuntimeException e) {
				Debug.error("Error while getting location property in '" + instruction.getID() + "' objective: "
						+ e.getMessage());
				return "";
			}
			return "X: " + location.getBlockX() + ", Y: " + location.getBlockY() + ", Z: " + location.getBlockZ();
		}
		return "";
	}

}