package mage.abilities.effects.common;
import mage.MageObject;
import mage.abilities.Ability;
import mage.abilities.effects.ContinuousRuleModifiyingEffectImpl;
import mage.constants.Duration;
import mage.constants.Outcome;
import mage.constants.PhaseStep;
import mage.game.Game;
import mage.game.events.GameEvent;
public class SkipNextUntapSourceEffect extends ContinuousRuleModifiyingEffectImpl {
private int validForTurnNum;
public SkipNextUntapSourceEffect() {
super(Duration.Custom, Outcome.Detriment, false, true);
staticText = "{this} doesn't untap during your next untap step";
validForTurnNum = 0;
}
public SkipNextUntapSourceEffect(final SkipNextUntapSourceEffect effect) {
super(effect);
}
@Override
public SkipNextUntapSourceEffect copy() {
return new SkipNextUntapSourceEffect(this);
}
@Override
public boolean apply(Game game, Ability source) {
return false;
}
@Override
public String getInfoMessage(Ability source, GameEvent event, Game game) {
MageObject mageObject = game.getObject(source.getSourceId());
if (mageObject != null) {
return "{this} doesn't untap (" + mageObject.getLogName() + ")";
}
return null;
}
@Override
public boolean applies(GameEvent event, Ability source, Game game) {
// the check for turn number is needed if multiple effects are added to prevent untap in next untap step
// if we don't check for turn number, every turn only one effect would be used instead of correctly only one time
// to skip the untap effect.
// Discard effect if related to previous turn
if (validForTurnNum > 0 && validForTurnNum < game.getTurnNum()) {
discard();
return false;
}
// remember the turn of the untap step the effect has to be applied
if (GameEvent.EventType.UNTAP_STEP.equals(event.getType())
&& game.getActivePlayerId().equals(source.getControllerId())) {
if (validForTurnNum == game.getTurnNum()) { // the turn has a secon untap step but the effect is already related to the first untap step
discard();
return false;
}
validForTurnNum = game.getTurnNum();
}
// skip untap action
if (game.getTurn().getStepType() == PhaseStep.UNTAP
&& event.getType() == GameEvent.EventType.UNTAP
&& event.getTargetId().equals(source.getSourceId())) {
discard();
return true;
}
return false;
}
}