content: /**
   * This file is part of Aion-Lightning <aion-lightning.org>.
   *
   *  Aion-Lightning 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.
   *
   *  Aion-Lightning 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 Aion-Lightning.
   *  If not, see <http://www.gnu.org/licenses/>.
   */
  package com.aionemu.gameserver.spawnengine;
  
  import java.util.Map;
  
  import com.aionemu.commons.utils.internal.chmv8.PlatformDependent;
  
  /**
   * @author Rolandas
   */
  public class WorldWalkerFormations {
  
  	private Map<Integer, InstanceWalkerFormations> formations;
  
  	public WorldWalkerFormations() {
  		formations = PlatformDependent.newConcurrentHashMap();
  	}
  
  	/**
  	 * @param instanceId
  	 * @return
  	 */
  	protected InstanceWalkerFormations getInstanceFormations(int instanceId) {
  		InstanceWalkerFormations instanceFormation = formations.get(instanceId);
  		if (instanceFormation == null) {
  			instanceFormation = new InstanceWalkerFormations();
  			formations.put(instanceId, instanceFormation);
  		}
  		return instanceFormation;
  	}
  }
  