rugby-scoring.c

/* rugby-scoring.c
 *
 * Copyright © 2012, 2017 Bruce Cowan <bruce@bcowan.eu>
 *
 * This file is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 3 of the
 * License, or (at your option) any later version.
 *
 * This file is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "rugby-possibility.h"
#include "rugby-scoring.h"

void
rugby_scoring_get_possibilities (GListStore *store, gint score)
{
    gint max_tries = score / TRY_POINTS;
    gint max_utries = score / UTRY_POINTS;

    g_list_store_remove_all (store);

    for (gint tries = 0; tries <= max_tries; tries++)
    {
        for (gint utries = 0; utries <= max_utries; utries++)
        {
            gint left = score - (tries * TRY_POINTS) - (utries * UTRY_POINTS);

            if (left < 0)
                break;

            if (left % KICK_POINTS == 0)
            {
                gint kicks = left / KICK_POINTS;

                g_autoptr(RugbyPossibility) possibility = rugby_possibility_new (tries,
                                                                                 utries,
                                                                                 kicks);
                g_list_store_append (store, possibility);
            }
        }
    }
}

gint
rugby_scoring_get_max_tries (gint score)
{
    return (score % 5 == 1) ? score / UTRY_POINTS - 1 : score / UTRY_POINTS;
}

gint
rugby_scoring_get_max_kicks (gint score)
{
    return (score % 3 == 1) ? score / KICK_POINTS : score / KICK_POINTS - 1;
}