DivineFavor.java

package com.hearthsim.card.classic.spell.rare;

import com.hearthsim.card.Card;
import com.hearthsim.card.minion.Minion;
import com.hearthsim.card.spellcard.SpellTargetableCard;
import com.hearthsim.event.effect.EffectCharacter;
import com.hearthsim.event.filter.FilterCharacter;
import com.hearthsim.event.filter.FilterCharacterTargetedSpell;
import com.hearthsim.model.BoardModel;
import com.hearthsim.model.PlayerModel;
import com.hearthsim.model.PlayerSide;
import com.hearthsim.util.tree.CardDrawNode;

public class DivineFavor extends SpellTargetableCard {

    private final static EffectCharacter effect = (targetSide, targetCharacterIndex, boardState) -> {
        PlayerModel currentPlayer = boardState.data_.modelForSide(PlayerSide.CURRENT_PLAYER);
        PlayerModel waitingPlayer = boardState.data_.modelForSide(targetSide);

        int numCardsToDraw = waitingPlayer.getHand().size() - currentPlayer.getHand().size() + 1;
        if (numCardsToDraw < 1) {
            return null;
        }

        if (boardState instanceof CardDrawNode) {
            ((CardDrawNode) boardState).addNumCardsToDraw(numCardsToDraw);
        } else {
            boardState = new CardDrawNode(boardState, numCardsToDraw);
        }
        return boardState;
    };

    private final static FilterCharacter filter = new FilterCharacterTargetedSpell() {
        protected boolean includeOwnHero() {
            return true;
        }

        @Override
        public boolean targetMatches(PlayerSide originSide, Card origin, PlayerSide targetSide, Minion targetCharacter, BoardModel board) {
            if (!super.targetMatches(originSide, origin, targetSide, targetCharacter, board)) {
                return false;
            }

            int numCardsToDraw = board.modelForSide(targetSide).getHand().size() - board.modelForSide(originSide).getHand().size() + 1;
            if (numCardsToDraw < 1) {
                return false;
            }
            return true;
        }
    };

    /**
     * Constructor
     *
     * Defaults to hasBeenUsed = false
     */
    public DivineFavor() {
        super();
    }

    @Override
    public FilterCharacter getTargetableFilter() {
        return DivineFavor.filter;
    }

    /**
     *
     * Use the card on the given target
     *
     * Draw cards until you have as many in hand as your opponent
     *
     *
     *
     * @param side
     * @param boardState The BoardState before this card has performed its action.  It will be manipulated and returned.
     *
     * @return The boardState is manipulated and returned
     */
    @Override
    public EffectCharacter getTargetableEffect() {
        return DivineFavor.effect;
    }
}