How to use

getAlternativeSourceCosts

method

in

mage.players.Player

@Override
public boolean apply(Layer layer, SubLayer sublayer, Ability source, Game game) {
  Player controller = game.getPlayer(source.getControllerId());
  if (controller != null) {
    controller.getAlternativeSourceCosts().add(alternativeCastingCostAbility);
    return true;
  }
  return false;
}

@Override
public boolean apply(Layer layer, SubLayer sublayer, Ability source, Game game) {
  Player controller = game.getPlayer(source.getControllerId());
  if (controller != null) {
    controller.getAlternativeSourceCosts().add(alternativeCastingCostAbility);
    return true;
  }
  return false;
}

@Override
public boolean apply(Layer layer, SubLayer sublayer, Ability source, Game game) {
  Player controller = game.getPlayer(source.getControllerId());
  if (controller != null) {
    controller.getAlternativeSourceCosts().add(alternativeCastingCostAbility);
    return true;
  }
  return false;
}

@Override
public boolean apply(Layer layer, SubLayer sublayer, Ability source, Game game) {
  Player controller = game.getPlayer(source.getControllerId());
  if (controller != null) {
    for (UUID playerId : game.getState().getPlayersInRange(controller.getId(), game)) {
      Player player = game.getPlayer(playerId);
      if (player != null) {
        player.getAlternativeSourceCosts().add(alternativeCastingCostAbility);
      }
    }
    return true;
  }
  return false;
}

@Override
public boolean apply(Layer layer, SubLayer sublayer, Ability source, Game game) {
  Player controller = game.getPlayer(source.getControllerId());
  if (controller != null) {
    for (UUID playerId : game.getState().getPlayersInRange(controller.getId(), game)) {
      Player player = game.getPlayer(playerId);
      if (player != null) {
        player.getAlternativeSourceCosts().add(alternativeCastingCostAbility);
      }
    }
    return true;
  }
  return false;
}

@Override
public boolean apply(Layer layer, SubLayer sublayer, Ability source, Game game) {
  Player controller = game.getPlayer(source.getControllerId());
  if (controller != null) {
    controller.getAlternativeSourceCosts().add(new AlternativeCostSourceAbility(
        null, new CompoundCondition(SourceIsSpellCondition.instance, new IsBeingCastFromHandCondition()), null, new FilterNonlandCard(), true));
    return true;
  }
  return false;
}

@Override
public boolean apply(Layer layer, SubLayer sublayer, Ability source, Game game) {
  Player controller = game.getPlayer(source.getControllerId());
  if (controller != null) {
    Permanent sourcePermanent = game.getPermanent(source.getSourceId());
    if (sourcePermanent != null) {
      Boolean wasItUsed = (Boolean) game.getState().getValue(
          sourcePermanent.getId().toString()
          + sourcePermanent.getZoneChangeCounter(game)
          + sourcePermanent.getTurnsOnBattlefield());
      // If we haven't used it yet this turn, give the option of using the zero alternative cost
      if (wasItUsed == null) {
        int timeCounters = sourcePermanent.getCounters(game).getCount("time");
        controller.getAlternativeSourceCosts().add(
            new AsForetoldAlternativeCost(sourcePermanent.getId(), timeCounters));
      }
      // Return true even if we didn't add the alt cost. We still applied the effect
      return true;
    }
  }
  return false;
}

this.loseByZeroOrLessLife = player.canLoseByZeroOrLessLife();
this.canPlayCardsFromGraveyard = player.canPlayCardsFromGraveyard();
this.alternativeSourceCosts.addAll(player.getAlternativeSourceCosts());

for (AlternativeSourceCosts alternativeSourceCosts : controller.getAlternativeSourceCosts()) {
  if (alternativeSourceCosts.isAvailable(this, game)) {
    if (alternativeSourceCosts.askToActivateAlternativeCosts(this, game)) {