MagicExileTopLibraryEvent.java

package magic.model.event;

import magic.model.MagicCard;
import magic.model.MagicCardList;
import magic.model.MagicGame;
import magic.model.MagicLocationType;
import magic.model.MagicPlayer;
import magic.model.MagicSource;
import magic.model.action.ShiftCardAction;
import magic.model.condition.MagicCondition;
import magic.model.condition.MagicConditionFactory;

public class MagicExileTopLibraryEvent extends MagicEvent{

    private final MagicCondition cond;

    public MagicExileTopLibraryEvent(final MagicSource source, final int amount) {
        this(source, source.getController(), amount);
    }

    public MagicExileTopLibraryEvent(final MagicSource source, final MagicPlayer player, final int amount) {
        super(
            source,
            player,
            amount,
            EVENT_ACTION,
            "PN exiles the top RN cards of his or her library."
        );
        cond = MagicConditionFactory.LibraryAtLeast(amount);
    }

    private static final MagicEventAction EVENT_ACTION = (final MagicGame game, final MagicEvent event) -> {
        final MagicCardList exile = new MagicCardList(event.getPlayer().getLibrary().getCardsFromTop(event.getRefInt()));
        for (final MagicCard card : exile) {
            game.doAction(new ShiftCardAction(card,MagicLocationType.OwnersLibrary,MagicLocationType.Exile));
        }
    };

    @Override
    public boolean isSatisfied() {
        return cond.accept(getSource()) && super.isSatisfied();
    }
}