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package mage.abilities.keyword;
import java.util.HashSet;
import java.util.Set;
import mage.MageObjectReference;
import mage.abilities.Ability;
import mage.abilities.Mode;
import mage.abilities.common.BecomesExertSourceTriggeredAbility;
import mage.abilities.common.SimpleStaticAbility;
import mage.abilities.effects.ContinuousEffect;
import mage.abilities.effects.Effect;
import mage.abilities.effects.ReplacementEffectImpl;
import mage.abilities.effects.common.DontUntapInControllersNextUntapStepTargetEffect;
import mage.constants.Duration;
import mage.constants.Outcome;
import mage.constants.WatcherScope;
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.players.Player;
import mage.target.targetpointer.FixedTarget;
import mage.watchers.Watcher;
/**
*
* @author LevelX2
*/
public class ExertAbility extends SimpleStaticAbility {
private String ruleText;
public ExertAbility(BecomesExertSourceTriggeredAbility ability) {
this(ability, false);
}
public ExertAbility(BecomesExertSourceTriggeredAbility ability, boolean exertOnlyOncePerTurn) {
super(Zone.BATTLEFIELD, new ExertReplacementEffect(exertOnlyOncePerTurn));
ruleText = (exertOnlyOncePerTurn
? "If {this} hasn't been exerted this turn, you may exert it"
: "You may exert {this}") + " as it attacks. ";
if (ability != null) {
this.addSubAbility(ability);
ruleText += ("When you do,");
ability.getEffects().stream().forEach((effect) -> {
ruleText += " " + effect.getText(ability.getModes().getMode());
});
ruleText += ". ";
ability.setRuleVisible(false);
}
ruleText += "<i>(An exterted creature can't untap during your next untap step)</i>";
if (exertOnlyOncePerTurn) {
getWatchers().add(new ExertedThisTurnWatcher());
}
}
public ExertAbility(final ExertAbility ability) {
super(ability);
this.ruleText = ability.ruleText;
}
@Override
public ExertAbility copy() {
return new ExertAbility(this);
}
@Override
public String getRule() {
return ruleText;
}
}
class ExertReplacementEffect extends ReplacementEffectImpl {
final private boolean exertOnlyOncePerTurn;
public ExertReplacementEffect(boolean exertOnlyOncePerTurn) {
super(Duration.WhileOnBattlefield, Outcome.Detriment);
staticText = "You may exert {this} as it attacks";
this.exertOnlyOncePerTurn = exertOnlyOncePerTurn;
}
public ExertReplacementEffect(ExertReplacementEffect effect) {
super(effect);
this.exertOnlyOncePerTurn = effect.exertOnlyOncePerTurn;
}
@Override
public boolean checksEventType(GameEvent event, Game game) {
return event.getType() == EventType.ATTACKER_DECLARED;
}
@Override
public boolean applies(GameEvent event, Ability source, Game game) {
return event.getSourceId().equals(source.getSourceId());
}
@Override
public boolean apply(Game game, Ability source) {
return false;
}
@Override
public boolean replaceEvent(GameEvent event, Ability source, Game game) {
Permanent creature = game.getPermanent(event.getSourceId());
Player controller = game.getPlayer(source.getControllerId());
if (creature != null && controller != null) {
if (exertOnlyOncePerTurn) {
MageObjectReference creatureReference = new MageObjectReference(creature.getId(), creature.getZoneChangeCounter(game), game);
ExertedThisTurnWatcher watcher = (ExertedThisTurnWatcher) game.getState().getWatchers().get(ExertedThisTurnWatcher.class.getSimpleName());
if (watcher != null && watcher.getExertedThisTurnCreatures().contains(creatureReference)) {
return false;
}
}
if (controller.chooseUse(outcome, "Exert " + creature.getLogName() + '?',
"An exterted creature can't untap during your next untap step.", "Yes", "No", source, game)) {
if (!game.isSimulation()) {
game.informPlayers(controller.getLogName() + " exerted " + creature.getName());
}
game.fireEvent(GameEvent.getEvent(GameEvent.EventType.BECOMES_EXERTED, creature.getId(), creature.getId(), creature.getControllerId()));
ContinuousEffect effect = new DontUntapInControllersNextUntapStepTargetEffect("", creature.getControllerId());
effect.setTargetPointer(new FixedTarget(creature, game));
game.addEffect(effect, source);
}
}
return false;
}
@Override
public String getText(Mode mode) {
return staticText;
}
@Override
public ExertReplacementEffect copy() {
return new ExertReplacementEffect(this);
}
}
class ExertedThisTurnWatcher extends Watcher {
private final Set<MageObjectReference> exertedThisTurnCreatures;
public ExertedThisTurnWatcher() {
super(ExertedThisTurnWatcher.class.getSimpleName(), WatcherScope.GAME);
exertedThisTurnCreatures = new HashSet<>();
}
public ExertedThisTurnWatcher(final ExertedThisTurnWatcher watcher) {
super(watcher);
exertedThisTurnCreatures = new HashSet<>(watcher.exertedThisTurnCreatures);
}
@Override
public Watcher copy() {
return new ExertedThisTurnWatcher(this);
}
@Override
public void watch(GameEvent event, Game game) {
if (event.getType() == GameEvent.EventType.BECOMES_EXERTED) {
this.exertedThisTurnCreatures.add(new MageObjectReference(event.getSourceId(), game));
}
}
public Set<MageObjectReference> getExertedThisTurnCreatures() {
return this.exertedThisTurnCreatures;
}
@Override
public void reset() {
super.reset();
exertedThisTurnCreatures.clear();
}
}