forked from External/mage
125 lines
5 KiB
Java
125 lines
5 KiB
Java
/*
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* Copyright 2010 BetaSteward_at_googlemail.com. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification, are
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* permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this list of
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* conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice, this list
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* of conditions and the following disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY BetaSteward_at_googlemail.com ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BetaSteward_at_googlemail.com OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* The views and conclusions contained in the software and documentation are those of the
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* authors and should not be interpreted as representing official policies, either expressed
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* or implied, of BetaSteward_at_googlemail.com.
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*/
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package mage.abilities.condition.common;
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import mage.abilities.Ability;
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import mage.constants.ComparisonType;
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import mage.abilities.condition.Condition;
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import mage.filter.FilterPermanent;
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import mage.filter.predicate.permanent.ControllerIdPredicate;
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import mage.game.Game;
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/**
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* Battlefield checking condition. This condition can decorate other conditions
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* as well as be used standalone.
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*
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* @author nantuko
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* @author maurer.it_at_gmail.com
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* @see #Controls(mage.filter.Filter)
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* @see #Controls(mage.filter.Filter, mage.abilities.condition.Condition)
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*/
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public class PermanentsOnTheBattlefieldCondition implements Condition {
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private FilterPermanent filter;
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private Condition condition;
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private ComparisonType type;
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private int count;
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private boolean onlyControlled;
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/**
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* Applies a filter and delegates creation to
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* {@link #ControlsPermanent(mage.filter.FilterPermanent, mage.abilities.condition.common.ControlsPermanent.CountType, int)}
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* with {@link ComparisonType#MORE_THAN}, and 0.
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*
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* @param filter
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*/
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public PermanentsOnTheBattlefieldCondition(FilterPermanent filter) {
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this(filter, ComparisonType.MORE_THAN, 0);
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}
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/**
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* Applies a filter, a {@link ComparisonType}, and count to permanents on the
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* battlefield when checking the condition during the
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* {@link #apply(mage.game.Game, mage.abilities.Ability) apply} method invocation.
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*
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* @param filter
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* @param type
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* @param count
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*/
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public PermanentsOnTheBattlefieldCondition(FilterPermanent filter, ComparisonType type, int count) {
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this(filter, type, count, true);
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}
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public PermanentsOnTheBattlefieldCondition(FilterPermanent filter, ComparisonType type, int count, boolean onlyControlled) {
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this.filter = filter;
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this.type = type;
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this.count = count;
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this.onlyControlled = onlyControlled;
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}
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/**
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* Applies a filter, a {@link ComparisonType}, and count to permanents on the
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* battlefield and calls the decorated condition to see if it
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* {@link #apply(mage.game.Game, mage.abilities.Ability) applies}
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* as well. This will force both conditions to apply for this to be true.
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*
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* @param filter
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* @param type
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* @param count
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* @param conditionToDecorate
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*/
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public PermanentsOnTheBattlefieldCondition(FilterPermanent filter, ComparisonType type, int count, Condition conditionToDecorate) {
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this(filter, type, count);
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this.condition = conditionToDecorate;
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}
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@Override
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public boolean apply(Game game, Ability source) {
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boolean conditionApplies = false;
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FilterPermanent localFilter = filter.copy();
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if (onlyControlled) {
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localFilter.add(new ControllerIdPredicate(source.getControllerId()));
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}
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int permanentsOnBattlefield = game.getBattlefield().count(localFilter, source.getSourceId(), source.getControllerId(), game);
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conditionApplies = ComparisonType.compare(permanentsOnBattlefield, type, count);
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//If a decorated condition exists, check it as well and apply them together.
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if (this.condition != null) {
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conditionApplies = conditionApplies && this.condition.apply(game, source);
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}
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return conditionApplies;
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}
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@Override
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public String toString() {
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return filter.getMessage();
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}
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}
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