/* * Copyright 2010 BetaSteward_at_googlemail.com. All rights reserved. * * Redistribution and use in source and binary forms, with or without modification, are * permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, this list of * conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright notice, this list * of conditions and the following disclaimer in the documentation and/or other materials * provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY BetaSteward_at_googlemail.com ``AS IS'' AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BetaSteward_at_googlemail.com OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * The views and conclusions contained in the software and documentation are those of the * authors and should not be interpreted as representing official policies, either expressed * or implied, of BetaSteward_at_googlemail.com. */ package mage.abilities.condition; import mage.abilities.Ability; import mage.game.Game; /** * The use of this class must be handled carefully because conditions don't * have a copy method, the condition state is kept when the effect or ability * is copied that uses the condition. * So if you use this class, you have to do it like in ConditionalContinuousEffect, * where always a new FixedCondition(condition.apply(...)) is used if a * LockedInCondition is given. * * Needs probably some redesign, don't like it the way it's done now. * * @author LevelX2 */ public class LockedInCondition implements Condition { private boolean conditionChecked = false; private boolean result; private final Condition condition; public LockedInCondition ( Condition condition ) { this.condition = condition; } /* * {@inheritDoc} */ @Override public boolean apply(Game game, Ability source) { if(!conditionChecked) { result = condition.apply(game, source); conditionChecked = true; } return result; } public Condition getBaseCondition() { return condition; } }