com.aionemu.gameserver.controllers.ObserveController.java Source code

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Here is the source code for com.aionemu.gameserver.controllers.ObserveController.java

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/*
 * This file is part of aion-unique <aion-unique.org>.
 *
 *  aion-unique 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-unique 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-unique.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.aionemu.gameserver.controllers;

import java.util.List;
import java.util.Queue;
import java.util.concurrent.ConcurrentLinkedQueue;

import org.apache.commons.lang.ArrayUtils;

import com.aionemu.gameserver.controllers.attack.AttackResult;
import com.aionemu.gameserver.controllers.attack.AttackStatus;
import com.aionemu.gameserver.controllers.movement.ActionObserver;
import com.aionemu.gameserver.controllers.movement.AttackCalcObserver;
import com.aionemu.gameserver.model.gameobjects.Creature;
import com.aionemu.gameserver.model.gameobjects.Item;
import com.aionemu.gameserver.model.gameobjects.player.Player;
import com.aionemu.gameserver.skillengine.model.Skill;

/**
 * @author ATracer
 * @author Cura
 */
public class ObserveController {
    // TODO revisit here later
    protected Queue<ActionObserver> moveObservers = new ConcurrentLinkedQueue<ActionObserver>();
    protected Queue<ActionObserver> attackObservers = new ConcurrentLinkedQueue<ActionObserver>();
    protected Queue<ActionObserver> attackedObservers = new ConcurrentLinkedQueue<ActionObserver>();
    protected Queue<ActionObserver> skilluseObservers = new ConcurrentLinkedQueue<ActionObserver>();

    protected ActionObserver[] observers = new ActionObserver[0];
    protected ActionObserver[] equipObservers = new ActionObserver[0];
    protected AttackCalcObserver[] attackCalcObservers = new AttackCalcObserver[0];

    /**
     * 
     * @param observer
     */
    public void attach(ActionObserver observer) {
        switch (observer.getObserverType()) {
        case ATTACK:
            attackObservers.add(observer);
            break;
        case ATTACKED:
            attackedObservers.add(observer);
            break;
        case MOVE:
            moveObservers.add(observer);
            break;
        case SKILLUSE:
            skilluseObservers.add(observer);
            break;
        }
    }

    /**
     * notify that creature moved
     */
    protected void notifyMoveObservers() {
        while (!moveObservers.isEmpty()) {
            ActionObserver observer = moveObservers.poll();
            observer.moved();
        }
        synchronized (observers) {
            for (ActionObserver observer : observers) {
                observer.moved();
            }
        }
    }

    /**
     * notify that creature attacking
     */
    public void notifyAttackObservers(Creature creature) {
        while (!attackObservers.isEmpty()) {
            ActionObserver observer = attackObservers.poll();
            observer.attack(creature);
        }
        synchronized (observers) {
            for (ActionObserver observer : observers) {
                observer.attack(creature);
            }
        }
    }

    /**
     * notify that creature attacked
     */
    protected void notifyAttackedObservers(Creature creature) {
        while (!attackedObservers.isEmpty()) {
            ActionObserver observer = attackedObservers.poll();
            observer.attacked(creature);
        }
        synchronized (observers) {
            for (ActionObserver observer : observers) {
                observer.attacked(creature);
            }
        }
    }

    /**
     * notify that creature used a skill
     */
    public void notifySkilluseObservers(Skill skill) {
        while (!skilluseObservers.isEmpty()) {
            ActionObserver observer = skilluseObservers.poll();
            observer.skilluse(skill);
        }
        synchronized (observers) {
            for (ActionObserver observer : observers) {
                observer.skilluse(skill);
            }
        }
    }

    /**
     * 
     * @param item
     * @param owner
     */
    public void notifyItemEquip(Item item, Player owner) {
        synchronized (equipObservers) {
            for (ActionObserver observer : equipObservers) {
                observer.equip(item, owner);
            }
        }
    }

    /**
     * 
     * @param item
     * @param owner
     */
    public void notifyItemUnEquip(Item item, Player owner) {
        synchronized (equipObservers) {
            for (ActionObserver observer : equipObservers) {
                observer.unequip(item, owner);
            }
        }
    }

    /**
     * 
     * @param observer
     */
    public void addObserver(ActionObserver observer) {
        synchronized (observers) {
            observers = (ActionObserver[]) ArrayUtils.add(observers, observer);
        }
    }

    /**
     * 
     * @param observer
     */
    public void addEquipObserver(ActionObserver observer) {
        synchronized (equipObservers) {
            equipObservers = (ActionObserver[]) ArrayUtils.add(equipObservers, observer);
        }
    }

    /**
     * 
     * @param observer
     */
    public void addAttackCalcObserver(AttackCalcObserver observer) {
        synchronized (attackCalcObservers) {
            attackCalcObservers = (AttackCalcObserver[]) ArrayUtils.add(attackCalcObservers, observer);
        }
    }

    /**
     * 
     * @param observer
     */
    public void removeObserver(ActionObserver observer) {
        synchronized (observers) {
            observers = (ActionObserver[]) ArrayUtils.removeElement(observers, observer);
        }
    }

    /**
     * 
     * @param observer
     */
    public void removeEquipObserver(ActionObserver observer) {
        synchronized (equipObservers) {
            equipObservers = (ActionObserver[]) ArrayUtils.removeElement(equipObservers, observer);
        }
    }

    /**
     * 
     * @param observer
     */
    public void removeAttackCalcObserver(AttackCalcObserver observer) {
        synchronized (attackCalcObservers) {
            attackCalcObservers = (AttackCalcObserver[]) ArrayUtils.removeElement(attackCalcObservers, observer);
        }
    }

    /**
     * 
     * @param status
     * @return true or false
     */
    public boolean checkAttackStatus(AttackStatus status) {
        synchronized (attackCalcObservers) {
            for (AttackCalcObserver observer : attackCalcObservers) {
                if (observer.checkStatus(status))
                    return true;
            }
        }
        return false;
    }

    /**
     * 
     * @param status
     * @return
     */
    public boolean checkAttackerStatus(AttackStatus status) {
        synchronized (attackCalcObservers) {
            for (AttackCalcObserver observer : attackCalcObservers) {
                if (observer.checkAttackerStatus(status))
                    return true;
            }
        }
        return false;
    }

    /**
     * @param attackList
     */
    public void checkShieldStatus(List<AttackResult> attackList) {
        synchronized (attackCalcObservers) {
            for (AttackCalcObserver observer : attackCalcObservers) {
                observer.checkShield(attackList);
            }
        }
    }
}