package mage.actions;
import java.util.ArrayList;
import mage.actions.impl.MageAction;
import mage.actions.score.ArtificialScoringSystem;
import mage.cards.Card;
import mage.constants.Zone;
import mage.game.Game;
import mage.game.events.GameEvent;
import mage.players.Player;
import java.util.List;
import java.util.UUID;
import mage.util.CardUtil;
/**
* Action for drawing cards.
*
* @author ayrat
*/
public class MageDrawAction extends MageAction {
private final Player player;
private final int amount;
private final ArrayList<UUID> appliedEffects;
private final List<Card> drawnCards;
private static final int NEGATIVE_VALUE = -1000000;
public MageDrawAction(Player player, int amount, ArrayList<UUID> appliedEffects) {
this.player = player;
this.amount = amount;
this.appliedEffects = appliedEffects;
this.drawnCards = new ArrayList<>();
}
/**
* Draw and set action score.
*
* @param game Game context.
* @return
*/
@Override
public int doAction(Game game) {
int numDrawn = 0;
int score = 0;
for (int i = 0; i < amount; i++) {
int value = drawCard(game);
if (value == NEGATIVE_VALUE) {
continue;
}
numDrawn++;
score += value;
}
if (!player.isTopCardRevealed() && numDrawn > 0) {
game.fireInformEvent(player.getName() + " draws " + CardUtil.numberToText(numDrawn, "a") + " card" + (numDrawn > 1 ? "s" : ""));
}
if (player.isEmptyDraw()) {
game.doAction(new MageLoseGameAction(player, MageLoseGameAction.DRAW_REASON));
}
setScore(player, score);
game.setStateCheckRequired();
return numDrawn;
}
/**
* Draw a card if possible (there is no replacement effect that prevent us from drawing).
* Fire event about card drawn.
*
* @param game
* @return
*/
protected int drawCard(Game game) {
GameEvent event = GameEvent.getEvent(GameEvent.EventType.DRAW_CARD, player.getId(), player.getId());
event.setAppliedEffects(appliedEffects);
if (!game.replaceEvent(event)) {
Card card = player.getLibrary().removeFromTop(game);
if (card != null) {
drawnCards.add(card);
card.moveToZone(Zone.HAND, null, game, false);
if (player.isTopCardRevealed()) {
game.fireInformEvent(player.getName() + " draws a revealed card (" + card.getLogName() + ")");
}
game.fireEvent(GameEvent.getEvent(GameEvent.EventType.DREW_CARD, card.getId(), player.getId()));
return ArtificialScoringSystem.inst.getCardScore(card);
}
}
return NEGATIVE_VALUE;
}
/**
* Return a card back to top.
*
* @param game Game context
*/
@Override
public void undoAction(Game game) {
for (int index = drawnCards.size() - 1; index >= 0; index--) {
Card card = drawnCards.get(index);
player.getHand().remove(card);
player.getLibrary().putOnTop(card, game);
}
}
}