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package mage.abilities.keyword;
import mage.abilities.Ability;
import mage.abilities.common.SimpleStaticAbility;
import mage.abilities.effects.ReplacementEffectImpl;
import mage.cards.Card;
import mage.constants.Duration;
import mage.constants.Outcome;
import mage.constants.Zone;
import mage.game.Game;
import mage.game.events.GameEvent;
import mage.players.Player;
/**
* If you would draw a card, instead you may put exactly X cards from the top of your library into your graveyard. If
* you do, return this card from your graveyard to your hand. Otherwise, draw a card.
*
* @author North
*/
public class DredgeAbility extends SimpleStaticAbility {
public DredgeAbility(int value) {
super(Zone.GRAVEYARD, new DredgeEffect(value));
}
public DredgeAbility(final DredgeAbility ability) {
super(ability);
}
@Override
public DredgeAbility copy() {
return new DredgeAbility(this);
}
}
class DredgeEffect extends ReplacementEffectImpl {
private final int amount;
public DredgeEffect(int value) {
super(Duration.WhileInGraveyard, Outcome.ReturnToHand);
this.amount = value;
this.staticText = new StringBuilder("Dredge ").append(Integer.toString(value))
.append(" <i>(If you would draw a card, instead you may put exactly three cards from the top of your library into your graveyard. If you do, return this card from your graveyard to your hand. Otherwise, draw a card.)</i>").toString();
}
public DredgeEffect(final DredgeEffect effect) {
super(effect);
this.amount = effect.amount;
}
@Override
public DredgeEffect copy() {
return new DredgeEffect(this);
}
@Override
public boolean apply(Game game, Ability source) {
return true;
}
@Override
public boolean replaceEvent(GameEvent event, Ability source, Game game) {
Card sourceCard = game.getCard(source.getSourceId());
if (sourceCard == null) {
return false;
}
Player player = game.getPlayer(source.getControllerId());
if (player != null && player.getLibrary().size() >= amount
&& player.chooseUse(outcome, new StringBuilder("Dredge ").append(sourceCard.getName()).
append("? (").append(amount).append(" cards go from top of library to graveyard)").toString(), game)) {
game.informPlayers(new StringBuilder(player.getName()).append(" dreges ").append(sourceCard.getName()).toString());
for (int i = 0; i < amount; i++) {
Card card = player.getLibrary().removeFromTop(game);
if (card != null) {
player.moveCardToGraveyardWithInfo(card, source.getSourceId(), game, Zone.LIBRARY);
}
}
player.moveCardToHandWithInfo(sourceCard, source.getSourceId(), game, Zone.GRAVEYARD);
return true;
}
return false;
}
@Override
public boolean applies(GameEvent event, Ability source, Game game) {
return event.getType().equals(GameEvent.EventType.DRAW_CARD) && event.getPlayerId().equals(source.getControllerId());
}
}