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Diffstat (limited to 'backgammon/common_source/back.h')
| -rw-r--r-- | backgammon/common_source/back.h | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/backgammon/common_source/back.h b/backgammon/common_source/back.h new file mode 100644 index 00000000..5bab6e55 --- /dev/null +++ b/backgammon/common_source/back.h @@ -0,0 +1,127 @@ +/* + * Copyright (c) 1980 Regents of the University of California. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)back.h 5.4 (Berkeley) 6/1/90 + */ + +#include <sgtty.h> + +#define rnum(r) (random()%r) +#define D0 dice[0] +#define D1 dice[1] +#define swap {D0 ^= D1; D1 ^= D0; D0 ^= D1; d0 = 1-d0;} + +/* + * + * Some numerical conventions: + * + * Arrays have white's value in [0], red in [1]. + * Numeric values which are one color or the other use + * -1 for white, 1 for red. + * Hence, white will be negative values, red positive one. + * This makes a lot of sense since white is going in decending + * order around the board, and red is ascending. + * + */ + +char EXEC[]; /* object for main program */ +char TEACH[]; /* object for tutorial program */ + +int pnum; /* color of player: + -1 = white + 1 = red + 0 = both + 2 = not yet init'ed */ +char args[100]; /* args passed to teachgammon and back */ +int acnt; /* length of args */ +int aflag; /* flag to ask for rules or instructions */ +int bflag; /* flag for automatic board printing */ +int cflag; /* case conversion flag */ +int hflag; /* flag for cleaning screen */ +int mflag; /* backgammon flag */ +int raflag; /* 'roll again' flag for recovered game */ +int rflag; /* recovered game flag */ +int tflag; /* cursor addressing flag */ +int rfl; /* saved value of rflag */ +int iroll; /* special flag for inputting rolls */ +int board[26]; /* board: negative values are white, + positive are red */ +int dice[2]; /* value of dice */ +int mvlim; /* 'move limit': max. number of moves */ +int mvl; /* working copy of mvlim */ +int p[5]; /* starting position of moves */ +int g[5]; /* ending position of moves (goals) */ +int h[4]; /* flag for each move if a man was hit */ +int cturn; /* whose turn it currently is: + -1 = white + 1 = red + 0 = just quitted + -2 = white just lost + 2 = red just lost */ +int d0; /* flag if dice have been reversed from + original position */ +int table[6][6]; /* odds table for possible rolls */ +int rscore; /* red's score */ +int wscore; /* white's score */ +int gvalue; /* value of game (64 max.) */ +int dlast; /* who doubled last (0 = neither) */ +int bar; /* position of bar for current player */ +int home; /* position of home for current player */ +int off[2]; /* number of men off board */ +int *offptr; /* pointer to off for current player */ +int *offopp; /* pointer to off for opponent */ +int in[2]; /* number of men in inner table */ +int *inptr; /* pointer to in for current player */ +int *inopp; /* pointer to in for opponent */ + +int ncin; /* number of characters in cin */ +char cin[100]; /* input line of current move + (used for reconstructing input after + a backspace) */ + +char *color[]; + /* colors as strings */ +char **colorptr; /* color of current player */ +char **Colorptr; /* color of current player, capitalized */ +int colen; /* length of color of current player */ + +struct sgttyb tty; /* tty information buffer */ +int old; /* original tty status */ +int noech; /* original tty status without echo */ +int raw; /* raw tty status, no echo */ + +int curr; /* row position of cursor */ +int curc; /* column position of cursor */ +int begscr; /* 'beginning' of screen + (not including board) */ + +int getout(); /* function to exit backgammon cleanly */ |