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  • Committer: Bazaar Package Importer
  • Author(s): Bart Martens
  • Date: 2007-04-02 20:38:09 UTC
  • Revision ID: james.westby@ubuntu.com-20070402203809-fxyqqtkhj9ou03dy
Tags: upstream-0.16.0
Import upstream version 0.16.0

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gameinfo.cc
 
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/*
 
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        gameinfo.cc             Game States
 
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        Copyright (c) 2004, 2005, 2006 Kriang Lerdsuwanakij
 
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        email:          lerdsuwa@users.sourceforge.net
 
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        This program is free software; you can redistribute it and/or modify
 
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        it under the terms of the GNU General Public License as published by
 
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        the Free Software Foundation; either version 2 of the License, or
 
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        (at your option) any later version.
 
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        This program is distributed in the hope that it will be useful,
 
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        but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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        GNU General Public License for more details.
 
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        You should have received a copy of the GNU General Public License
 
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        along with this program; if not, write to the Free Software
 
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        Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
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*/
 
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#include "config.h"
 
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#include "gameinfo.h"
 
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#include "game.h"
 
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game_info::game_info()
 
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{
 
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        board_ptr = 0;
 
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        game_play = false;
 
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        use_clock = false;
 
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}
 
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game_info::~game_info()
 
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{
 
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        delete board_ptr;
 
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}
 
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void game_info::new_game_remaining(int queue_size)
 
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{
 
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                        // player must be set before this
 
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        set_game_play_from_board();
 
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                                // Update history for undo
 
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        board_history[0] = *board_ptr;
 
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        player_history[0] = player;
 
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        num_history = 1;
 
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        max_num_history = 1;
 
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                                // When move queue is used
 
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        min_num_history = 1 + queue_size;
 
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}
 
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void game_info::set_game_play_from_board()
 
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{
 
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        game_play = board_ptr->can_play();
 
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        if (!game_play)
 
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                game_result = game_result_end;
 
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}
 
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void game_info::new_game_from_begin(int queue_size)
 
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{
 
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        random_game = false;
 
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        first_play_is_pass = false;
 
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        if (!board_ptr)
 
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                board_ptr = new byte_board_info;
 
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        *board_ptr = &board_begin;
 
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        player = BLACK;
 
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        new_game_remaining(queue_size);
 
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}
 
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void game_info::new_game_from_board(const byte_board_info *b, int p)
 
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{
 
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        random_game = true;
 
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        random_game_pieces =  b->get_num_move() + 4;
 
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        first_play_is_pass = false;
 
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        if (!board_ptr)
 
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                board_ptr = new byte_board_info;
 
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        *board_ptr = *b;
 
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        player = p;
 
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                                        // First move is a pass
 
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        if (!board_ptr->can_play(player)
 
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            && board_ptr->can_play(switch_color(player))) {
 
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                player = switch_color(player);
 
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                first_play_is_pass = true;
 
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        }
 
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        new_game_remaining(0);
 
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}
 
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bool game_info::is_undoable() const
 
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{
 
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        int     i = num_history;
 
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        if (i <= min_num_history)       // Already at the beginning of the game
 
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                                        // Use <= to support move queue
 
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                return false;
 
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        return true;
 
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}
 
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bool game_info::is_redoable() const
 
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{
 
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        int     i = num_history;
 
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        if (i == max_num_history)       // Already at the end of the game
 
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                return false;
 
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        return true;
 
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}
 
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void game_info::undo()
 
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{
 
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        int     i = num_history;
 
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                                // Skip AI's turns
 
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        while (i > min_num_history && is_computer_player(player_history[i-2]))
 
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                i--;
 
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        if (i > min_num_history)                // Undo human move
 
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                i--;
 
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        *board_ptr = board_history[i-1];
 
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        player = player_history[i-1];
 
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                        // player must be set before this
 
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        set_game_play_from_board();
 
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        num_history = i;
 
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}
 
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void game_info::redo()
 
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{
 
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        int     i = num_history;
 
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                                // Skip AI's turns
 
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        while (i < max_num_history && is_computer_player(player_history[i-1]))
 
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                i++;
 
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        if (i < max_num_history)                // Redo human move
 
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                i++;
 
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        if (redo_ai_move) {
 
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                                // Skip AI's turns
 
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                while (i < max_num_history 
 
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                       && is_computer_player(player_history[i-1]))
 
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                        i++;
 
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        }
 
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        *board_ptr = board_history[i-1];
 
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        player = player_history[i-1];
 
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                        // player must be set before this
 
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        set_game_play_from_board();
 
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        num_history = i;
 
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}
 
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void game_info::place_piece(int pos, int time)
 
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{
 
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        if (use_clock &&
 
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            ((player == BLACK && time > clock_history_black[num_history-1])
 
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             || (player == WHITE && time > clock_history_white[num_history-1]))) {
 
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                player_timeout();
 
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                return;
 
168
        }
 
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        board_ptr->place_piece(player, pos);
 
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        int     old_player = player;
 
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174
        if (board_ptr->can_play(switch_color(player))) {
 
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                player = switch_color(player);
 
176
        }
 
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        else if (!board_ptr->can_play(player)) {
 
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                game_play = false;
 
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                game_result = game_info::game_result_end;
 
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        }
 
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                                // Update history for undo
 
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        bool keep_history = false;
 
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        board_history[num_history] = *board_ptr;
 
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                                // Repeat same move
 
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        if (num_history < max_num_history 
 
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            && move_history[num_history-1] == pos)
 
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                keep_history = true;
 
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        move_history[num_history-1] = pos;
 
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        time_history[num_history-1] = time;
 
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        if (use_clock) {
 
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                if (old_player == BLACK) {
 
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                        clock_history_black[num_history] = clock_history_black[num_history-1] - time;
 
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                        clock_history_white[num_history] = clock_history_white[num_history-1];
 
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                }
 
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                else {
 
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                        clock_history_black[num_history] = clock_history_black[num_history-1];
 
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                        clock_history_white[num_history] = clock_history_white[num_history-1] - time;
 
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                }
 
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        }
 
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                                // Next move
 
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        player_history[num_history] = player;
 
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        num_history++;
 
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                                // Remove redo capability
 
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        if (!keep_history)
 
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                max_num_history = num_history;
 
209
}
 
210
 
 
211
void game_info::player_timeout()
 
212
{
 
213
        game_play = false;
 
214
        if (player == BLACK)
 
215
                game_result = game_result_timeout_black;
 
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        else
 
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                game_result = game_result_timeout_white;
 
218
}
 
219
 
 
220
void game_info::player_resign()
 
221
{
 
222
        game_play = false;
 
223
        if (player == BLACK)
 
224
                game_result = game_result_resign_black;
 
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        else
 
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                game_result = game_result_resign_white;
 
227
}
 
228
 
 
229
void game_info::game_end()
 
230
{
 
231
        game_play = false;
 
232
        game_result = game_result_end;
 
233
}
 
234
 
 
235
int game_info::get_clock()
 
236
{
 
237
        if (player == BLACK)
 
238
                return clock_history_black[num_history-1];
 
239
        else
 
240
                return clock_history_white[num_history-1];
 
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}