Package mage.sets.legends

Source Code of mage.sets.legends.ChainsOfMephistophelesReplacementEffect

/*
*  Copyright 2010 BetaSteward_at_googlemail.com. All rights reserved.
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package mage.sets.legends;

import java.util.UUID;
import mage.abilities.Ability;
import mage.abilities.common.SimpleStaticAbility;
import mage.abilities.effects.Effect;
import mage.abilities.effects.ReplacementEffectImpl;
import mage.abilities.effects.common.PutTopCardOfLibraryIntoGraveTargetEffect;
import mage.cards.CardImpl;
import mage.constants.CardType;
import mage.constants.Duration;
import mage.constants.Outcome;
import mage.constants.Rarity;
import mage.constants.Zone;
import mage.game.Game;
import mage.game.events.GameEvent;
import mage.game.events.GameEvent.EventType;
import mage.players.Player;
import mage.target.targetpointer.FixedTarget;
import mage.watchers.common.CardsDrawnDuringDrawStepWatcher;

/**
*
* @author LevelX2
*/
public class ChainsOfMephistopheles extends CardImpl {

    public ChainsOfMephistopheles(UUID ownerId) {
        super(ownerId, 5, "Chains of Mephistopheles", Rarity.RARE, new CardType[]{CardType.ENCHANTMENT}, "{1}{B}");
        this.expansionSetCode = "LEG";

        this.color.setBlack(true);

        // If a player would draw a card except the first one he or she draws in his or her draw step each turn, that player discards a card instead. If the player discards a card this way, he or she draws a card. If the player doesn't discard a card this way, he or she puts the top card of his or her library into his or her graveyard.
        this.addAbility(new SimpleStaticAbility(Zone.BATTLEFIELD, new ChainsOfMephistophelesReplacementEffect()));
        this.addWatcher(new CardsDrawnDuringDrawStepWatcher());
    }

    public ChainsOfMephistopheles(final ChainsOfMephistopheles card) {
        super(card);
    }

    @Override
    public ChainsOfMephistopheles copy() {
        return new ChainsOfMephistopheles(this);
    }
}

class ChainsOfMephistophelesReplacementEffect extends ReplacementEffectImpl {

    public ChainsOfMephistophelesReplacementEffect() {
        super(Duration.WhileOnBattlefield, Outcome.Benefit);
        staticText = "If a player would draw a card except the first one he or she draws in his or her draw step each turn, that player discards a card instead. If the player discards a card this way, he or she draws a card. If the player doesn't discard a card this way, he or she puts the top card of his or her library into his or her graveyard";
    }

    public ChainsOfMephistophelesReplacementEffect(final ChainsOfMephistophelesReplacementEffect effect) {
        super(effect);
    }

    @Override
    public ChainsOfMephistophelesReplacementEffect copy() {
        return new ChainsOfMephistophelesReplacementEffect(this);
    }

    @Override
    public boolean apply(Game game, Ability source) {
        return true;
    }

    @Override
    public boolean replaceEvent(GameEvent event, Ability source, Game game) {
        Player player = game.getPlayer(event.getPlayerId());
        if (player != null) {
            if (player.getHand().isEmpty()) {
                // he or she puts the top card of his or her library into his or her graveyard
                Effect effect = new PutTopCardOfLibraryIntoGraveTargetEffect(1);
                effect.setTargetPointer(new FixedTarget(event.getPlayerId()));
                effect.apply(game, source);
                return true;
            } else  {
                // discards a card instead. If the player discards a card this way, he or she draws a card.
                player.discard(1, source, game);
                return false; // because player draws a card, the draw event is kept
            }
        }
        return false;
    }

    @Override
    public boolean applies(GameEvent event, Ability source, Game game) {
        if (event.getType() == EventType.DRAW_CARD) {
            if (game.getActivePlayerId().equals(event.getPlayerId())) {
                CardsDrawnDuringDrawStepWatcher watcher = (CardsDrawnDuringDrawStepWatcher) game.getState().getWatchers().get("CardsDrawnDuringDrawStep");
                if (watcher != null && watcher.getAmountCardsDrawn(event.getPlayerId()) > 0) {
                    return true;
                }
            } else {
                return true;
            }
        }
        return false;
    }
}
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