1 files changed, 100 insertions, 0 deletions

diff --git a/apps/plugins/goban/board.h b/apps/plugins/goban/board.h
new file mode 100644
index 0000000000..cd6f01e79a
--- /dev/null
+++ b/apps/plugins/goban/board.h
@@ -0,0 +1,100 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2007-2009 Joshua Simmons <mud at majidejima dot com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#ifndef GOBAN_BOARD_H
+#define GOBAN_BOARD_H
+
+#include "types.h"
+#include "goban.h"              /* for LCD_BOARD_SIZE */
+
+#define WHITE 1
+#define BLACK 2
+#define EMPTY 0
+#define NONE 0
+#define INVALID 4
+
+#define OTHER(color) (color == BLACK ? WHITE : BLACK)
+
+                       /* MAX_BOARD_SIZE no longer dependent on screen
+                          size since zooming was implemented */
+#define MAX_BOARD_SIZE 19
+#define MIN_BOARD_SIZE 1
+
+#define INVALID_POS ((unsigned short) -5003)
+#define PASS_POS ((unsigned short) -5002)
+
+#define POS(i, j) ((i + 1) + (j + 1) * (MAX_BOARD_SIZE + 2))
+#define WEST(i) (i - 1)
+#define EAST(i) (i + 1)
+#define NORTH(i) (i - (MAX_BOARD_SIZE + 2))
+#define SOUTH(i) (i + (MAX_BOARD_SIZE + 2))
+
+unsigned short WRAP (unsigned short pos);
+
+#define I(pos) (pos % (MAX_BOARD_SIZE + 2) - 1)
+#define J(pos) (pos / (MAX_BOARD_SIZE + 2) - 1)
+
+/* Clear the data from the board, including marks and such.  Should be
+   called after setting the board size */
+void clear_board (void);
+
+/* Set the size of the board.  Follow with a call to clear_board() and a
+   call to setup_display(). Returns false on failure (generally, invalid
+   width or height) */
+bool set_size_board (int width, int height);
+
+/* Returns true if the given move is legal. allow_suicide should be true
+   if suicide is a valid move with the current ruleset */
+bool legal_move_board (unsigned short pos, unsigned char color,
+                       bool allow_suicide);
+
+/* Returns true if the pos is on the board */
+bool on_board (unsigned short pos);
+
+/* Get the color on the board at the given pos. Should be
+   BLACK/WHITE/EMPTY, and sometimes INVALID. */
+unsigned char get_point_board (unsigned short pos);
+
+/* Set the color of point at pos, which must be on the board */
+void set_point_board (unsigned short pos, unsigned char color);
+
+/* Get the number of liberties of the group of which pos is a stone.
+   Returns less than zero if pos is empty. If the number of liberties of
+   the group is greater than 2, 2 is returned. */
+int get_liberties_board (unsigned short pos);
+
+/* A simple flood fill algorithm for capturing or uncapturing stones.
+   Returns the number of locations changed. */
+int flood_fill_board (unsigned short pos, unsigned char color);
+
+/* The size of the board */
+extern unsigned int board_width;
+extern unsigned int board_height;
+
+/* The number of captures for each player */
+extern int black_captures;
+extern int white_captures;
+
+/* If there is a ko which cannot be retaken, this is set to the point
+   which may not be played at.  Otherwise this is INVALID_POS. */
+extern unsigned short ko_pos;
+
+#endif