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package mage.abilities.costs.mana;
import mage.abilities.Ability;
import mage.game.Game;
/**
* Interface for abilities that allow the player to pay mana costs of a spell in alternate ways.
* For the payment SpecialActions are used.
*
* Example of such an alternate payment ability: {@link mage.abilities.keyword.DelveAbility}
*
* @author LevelX2
*/
@FunctionalInterface
public interface AlternateManaPaymentAbility {
/**
* Adds the special action to the state, that allows the user to do the alternate mana payment
*
* @param source
* @param game
* @param unpaid unapaid mana costs of the spell
*/
void addSpecialAction(Ability source, Game game, ManaCost unpaid);
}