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* Copyright 2010 BetaSteward_at_googlemail.com. All rights reserved.
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package mage.abilities.effects.common.continious;
import java.util.*;
import mage.constants.Duration;
import mage.constants.Layer;
import mage.constants.Outcome;
import mage.constants.SubLayer;
import mage.abilities.Ability;
import mage.abilities.Mode;
import mage.abilities.effects.ContinuousEffectImpl;
import mage.game.Game;
import mage.game.permanent.Permanent;
/**
* @author magenoxx_at_googlemail.com
*/
public class ExchangeControlTargetEffect extends ContinuousEffectImpl {
private String rule;
private boolean withSource;
private boolean withSecondTarget;
private Map<UUID, Integer> zoneChangeCounter = new HashMap<>();
private Map<UUID, UUID> lockedControllers = new HashMap<>();
public ExchangeControlTargetEffect(Duration duration, String rule) {
this(duration, rule, false);
}
public ExchangeControlTargetEffect(Duration duration, String rule, boolean withSource) {
this(duration, rule, withSource, false);
}
public ExchangeControlTargetEffect(Duration duration, String rule, boolean withSource, boolean withSecondTarget) {
super(duration, Layer.ControlChangingEffects_2, SubLayer.NA, Outcome.GainControl);
this.withSource = withSource;
this.withSecondTarget = withSecondTarget;
this.rule = rule;
}
public ExchangeControlTargetEffect(final ExchangeControlTargetEffect effect) {
super(effect);
this.rule = effect.rule;
this.withSource = effect.withSource;
this.withSecondTarget = effect.withSecondTarget;
this.lockedControllers = effect.lockedControllers;
this.zoneChangeCounter = effect.zoneChangeCounter;
}
@Override
public ExchangeControlTargetEffect copy() {
return new ExchangeControlTargetEffect(this);
}
@Override
public boolean isInactive(Ability source, Game game) {
return isDiscarded();
}
@Override
public void init(Ability source, Game game) {
Permanent permanent1 = null;
Permanent permanent2 = null;
if (withSource) {
permanent1 = game.getPermanent(targetPointer.getFirst(game, source));
permanent2 = game.getPermanent(source.getSourceId());
} else {
for (UUID permanentId : targetPointer.getTargets(game, source)) {
if (permanent1 == null) {
permanent1 = game.getPermanent(permanentId);
} else if (permanent2 == null) {
permanent2 = game.getPermanent(permanentId);
}
}
if (withSecondTarget) {
UUID uuid = source.getTargets().get(1).getFirstTarget();
permanent2 = game.getPermanent(uuid);
}
}
if (permanent1 != null && permanent2 != null) {
// exchange works only for two different controllers
if (permanent1.getControllerId().equals(permanent2.getControllerId())) {
// discard effect if controller of both permanents is the same
discard();
return;
}
this.lockedControllers.put(permanent1.getId(), permanent2.getControllerId());
this.zoneChangeCounter.put(permanent1.getId(), permanent1.getZoneChangeCounter());
this.lockedControllers.put(permanent2.getId(), permanent1.getControllerId());
this.zoneChangeCounter.put(permanent2.getId(), permanent2.getZoneChangeCounter());
} else {
// discard if there are less than 2 permanents
discard();
}
}
@Override
public boolean apply(Game game, Ability source) {
Set<UUID> toDelete = new HashSet<>();
for (Map.Entry<UUID, Integer> entry: zoneChangeCounter.entrySet()) {
Permanent permanent = game.getPermanent(entry.getKey());
if (permanent == null || permanent.getZoneChangeCounter() != entry.getValue()) {
// controll effect cease if the same permanent is no longer on the battlefield
toDelete.add(entry.getKey());
continue;
}
permanent.changeControllerId(lockedControllers.get(permanent.getId()), game);
}
if (!toDelete.isEmpty()) {
for(UUID uuid: toDelete) {
zoneChangeCounter.remove(uuid);
}
if (zoneChangeCounter.isEmpty()) {
discard();
return false;
}
}
return true;
}
@Override
public String getText(Mode mode) {
return this.rule;
}
}