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* Copyright 2010 BetaSteward_at_googlemail.com. All rights reserved.
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* 2. Redistributions in binary form must reproduce the above copyright notice, this list
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package mage.abilities;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.UUID;
import java.util.concurrent.ConcurrentHashMap;
import mage.MageObject;
import mage.constants.Zone;
import mage.game.Game;
import mage.game.events.GameEvent;
import mage.game.events.GameEvent.EventType;
import mage.game.permanent.Permanent;
import mage.game.permanent.PermanentCard;
/**
*
* @author BetaSteward_at_googlemail.com
*/
public class TriggeredAbilities extends ConcurrentHashMap<String, TriggeredAbility> {
private final Map<String, List<UUID>> sources = new HashMap<>();
public TriggeredAbilities() {}
public TriggeredAbilities(final TriggeredAbilities abilities) {
for (Map.Entry<String, TriggeredAbility> entry: abilities.entrySet()) {
this.put(entry.getKey(), entry.getValue().copy());
}
for (Map.Entry<String, List<UUID>> entry : abilities.sources.entrySet()) {
sources.put(entry.getKey(), entry.getValue());
}
}
public void checkTriggers(GameEvent event, Game game) {
for (Iterator<TriggeredAbility> it = this.values().iterator(); it.hasNext();) {
TriggeredAbility ability = it.next();
// for effects like when leaves battlefield or destroyed use ShortLKI to check if permanent was in the correct zone before (e.g. Oblivion Ring or Karmic Justice)
if (ability.isInUseableZone(game, null, event.getType().equals(EventType.ZONE_CHANGE) || event.getType().equals(EventType.DESTROYED_PERMANENT))) {
if (!game.getContinuousEffects().preventedByRuleModification(event, ability, game, false)) {
MageObject object = null;
if (!ability.getZone().equals(Zone.COMMAND) && !game.getState().getZone(ability.getSourceId()).equals(ability.getZone())) {
object = game.getShortLivingLKI(ability.getSourceId(), ability.getZone());
}
if (object == null) {
object = getMageObject(event, game, ability);
}
if (object != null) {
if (checkAbilityStillExists(ability, event, object)) {
if (object instanceof Permanent) {
ability.setControllerId(((Permanent) object).getControllerId());
}
ability.setSourceObject(object);
if (ability.checkTrigger(event, game)) {
UUID controllerId = ability.getControllerId();
ability.trigger(game, controllerId);
}
}
}
}
}
}
}
private boolean checkAbilityStillExists(TriggeredAbility ability, GameEvent event, MageObject object) {
boolean exists = true;
if (!object.getAbilities().contains(ability)) {
exists = false;
if (object instanceof PermanentCard) {
PermanentCard permanent = (PermanentCard)object;
if (permanent.canTransform() && event.getType() == GameEvent.EventType.TRANSFORMED) {
exists = permanent.getCard().getAbilities().contains(ability);
}
}
}
return exists;
}
private MageObject getMageObject(GameEvent event, Game game, TriggeredAbility ability) {
MageObject object = game.getPermanent(ability.getSourceId());
if (object == null) {
object = game.getLastKnownInformation(ability.getSourceId(), event.getZone());
if (object == null) {
object = game.getObject(ability.getSourceId());
}
}
return object;
}
/**
* Adds a by sourceId gained triggered ability
*
* @param ability - the gained ability
* @param sourceId - the source that assigned the ability
* @param attachedTo - the object that gained the ability
*/
public void add(TriggeredAbility ability, UUID sourceId, MageObject attachedTo) {
this.add(ability, attachedTo);
List<UUID> uuidList = new LinkedList<>();
uuidList.add(sourceId);
// if the object that gained the ability moves zone, also then the triggered ability must be removed
uuidList.add(attachedTo.getId());
sources.put(getKey(ability, attachedTo), uuidList);
}
public void add(TriggeredAbility ability, MageObject attachedTo) {
this.put(getKey(ability, attachedTo), ability);
}
private String getKey(TriggeredAbility ability, MageObject target) {
String key = ability.getId() + "_";
if (target != null) {
key += target.getId();
}
return key;
}
/**
* Removes gained abilities by sourceId
*
* @param sourceId
* @return
*/
public List<String> removeGainedAbilitiesForSource(UUID sourceId) {
List<String> keysToRemove = new ArrayList<>();
for (Map.Entry<String, List<UUID>> entry : sources.entrySet()) {
if (entry.getValue().contains(sourceId)) {
keysToRemove.add(entry.getKey());
}
}
for (String key: keysToRemove) {
sources.remove(key);
}
return keysToRemove;
}
public TriggeredAbilities copy() {
return new TriggeredAbilities(this);
}
}