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package mage.abilities.keyword;
import mage.abilities.Ability;
import mage.abilities.ActivatedAbilityImpl;
import mage.abilities.DelayedTriggeredAbility;
import mage.abilities.costs.mana.ManaCosts;
import mage.abilities.effects.ReplacementEffectImpl;
import mage.abilities.effects.common.CreateDelayedTriggeredAbilityEffect;
import mage.abilities.effects.common.ExileSourceEffect;
import mage.abilities.effects.common.ReturnSourceFromGraveyardToBattlefieldEffect;
import mage.abilities.effects.common.continious.GainAbilitySourceEffect;
import mage.constants.Duration;
import mage.constants.Outcome;
import mage.constants.TimingRule;
import mage.constants.Zone;
import mage.game.Game;
import mage.game.events.GameEvent;
import mage.game.events.GameEvent.EventType;
import mage.game.events.ZoneChangeEvent;
/**
*
* @author BetaSteward_at_googlemail.com
*
*
* 702.82. Unearth
*
* 702.82a Unearth is an activated ability that functions while the card with unearth
* is in a graveyard. "Unearth [cost]" means "[Cost]: Return this card from your graveyard
* to the battlefield. It gains haste. Exile it at the beginning of the next end step.
* If it would leave the battlefield, exile it instead of putting it anywhere else.
* Activate this ability only any time you could cast a sorcery."
*
*/
public class UnearthAbility extends ActivatedAbilityImpl {
public UnearthAbility(ManaCosts costs) {
super(Zone.GRAVEYARD, new ReturnSourceFromGraveyardToBattlefieldEffect(), costs);
this.timing = TimingRule.SORCERY;
this.addEffect(new GainAbilitySourceEffect(HasteAbility.getInstance(), Duration.Custom));
this.addEffect(new CreateDelayedTriggeredAbilityEffect(new UnearthDelayedTriggeredAbility()));
this.addEffect(new UnearthLeavesBattlefieldEffect());
}
public UnearthAbility(final UnearthAbility ability) {
super(ability);
}
@Override
public UnearthAbility copy() {
return new UnearthAbility(this);
}
@Override
public String getRule() {
StringBuilder sb = new StringBuilder("Unearth ").append(this.getManaCosts().getText());
sb.append(" <i>(").append(this.getManaCosts().getText());
sb.append(": Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)");
return sb.toString();
}
}
class UnearthDelayedTriggeredAbility extends DelayedTriggeredAbility {
public UnearthDelayedTriggeredAbility() {
super(new ExileSourceEffect());
}
public UnearthDelayedTriggeredAbility(final UnearthDelayedTriggeredAbility ability) {
super(ability);
}
@Override
public UnearthDelayedTriggeredAbility copy() {
return new UnearthDelayedTriggeredAbility(this);
}
@Override
public boolean checkTrigger(GameEvent event, Game game) {
if (event.getType() == EventType.END_TURN_STEP_PRE && event.getPlayerId().equals(this.controllerId)) {
return true;
}
return false;
}
@Override
public String getRule() {
return "Exile {this} at the beginning of the next end step";
}
}
class UnearthLeavesBattlefieldEffect extends ReplacementEffectImpl {
public UnearthLeavesBattlefieldEffect() {
super(Duration.WhileOnBattlefield, Outcome.Exile);
staticText = "When {this} leaves the battlefield, exile it";
}
public UnearthLeavesBattlefieldEffect(final UnearthLeavesBattlefieldEffect effect) {
super(effect);
}
@Override
public UnearthLeavesBattlefieldEffect copy() {
return new UnearthLeavesBattlefieldEffect(this);
}
@Override
public boolean applies(GameEvent event, Ability source, Game game) {
if (event.getType() == EventType.ZONE_CHANGE && event.getTargetId().equals(source.getSourceId())) {
ZoneChangeEvent zEvent = (ZoneChangeEvent)event;
if (zEvent.getFromZone() == Zone.BATTLEFIELD && zEvent.getToZone() != Zone.EXILED) {
return true;
}
}
return false;
}
@Override
public boolean apply(Game game, Ability source) {
ExileSourceEffect effect = new ExileSourceEffect();
return effect.apply(game, source);
}
@Override
public boolean replaceEvent(GameEvent event, Ability source, Game game) {
return apply(game, source);
}
}