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554eb505f8
of the x11 based games. I'm not going to tag the originals with bsd_44_lite and do this in two stages since it's just not worth it for this collection, and I've got directory renames to deal with that way. Bleah. Submitted by: jkh
128 lines
5.0 KiB
C
128 lines
5.0 KiB
C
/*
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* Copyright (c) 1980, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)back.h 8.1 (Berkeley) 5/31/93
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*/
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#include <sgtty.h>
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#define rnum(r) (random()%r)
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#define D0 dice[0]
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#define D1 dice[1]
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#define swap {D0 ^= D1; D1 ^= D0; D0 ^= D1; d0 = 1-d0;}
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/*
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*
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* Some numerical conventions:
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*
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* Arrays have white's value in [0], red in [1].
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* Numeric values which are one color or the other use
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* -1 for white, 1 for red.
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* Hence, white will be negative values, red positive one.
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* This makes a lot of sense since white is going in decending
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* order around the board, and red is ascending.
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*
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*/
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char EXEC[]; /* object for main program */
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char TEACH[]; /* object for tutorial program */
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int pnum; /* color of player:
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-1 = white
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1 = red
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0 = both
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2 = not yet init'ed */
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char args[100]; /* args passed to teachgammon and back */
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int acnt; /* length of args */
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int aflag; /* flag to ask for rules or instructions */
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int bflag; /* flag for automatic board printing */
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int cflag; /* case conversion flag */
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int hflag; /* flag for cleaning screen */
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int mflag; /* backgammon flag */
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int raflag; /* 'roll again' flag for recovered game */
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int rflag; /* recovered game flag */
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int tflag; /* cursor addressing flag */
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int rfl; /* saved value of rflag */
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int iroll; /* special flag for inputting rolls */
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int board[26]; /* board: negative values are white,
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positive are red */
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int dice[2]; /* value of dice */
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int mvlim; /* 'move limit': max. number of moves */
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int mvl; /* working copy of mvlim */
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int p[5]; /* starting position of moves */
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int g[5]; /* ending position of moves (goals) */
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int h[4]; /* flag for each move if a man was hit */
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int cturn; /* whose turn it currently is:
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-1 = white
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1 = red
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0 = just quitted
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-2 = white just lost
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2 = red just lost */
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int d0; /* flag if dice have been reversed from
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original position */
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int table[6][6]; /* odds table for possible rolls */
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int rscore; /* red's score */
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int wscore; /* white's score */
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int gvalue; /* value of game (64 max.) */
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int dlast; /* who doubled last (0 = neither) */
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int bar; /* position of bar for current player */
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int home; /* position of home for current player */
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int off[2]; /* number of men off board */
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int *offptr; /* pointer to off for current player */
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int *offopp; /* pointer to off for opponent */
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int in[2]; /* number of men in inner table */
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int *inptr; /* pointer to in for current player */
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int *inopp; /* pointer to in for opponent */
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int ncin; /* number of characters in cin */
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char cin[100]; /* input line of current move
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(used for reconstructing input after
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a backspace) */
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char *color[];
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/* colors as strings */
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char **colorptr; /* color of current player */
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char **Colorptr; /* color of current player, capitalized */
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int colen; /* length of color of current player */
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struct sgttyb tty; /* tty information buffer */
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int old; /* original tty status */
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int noech; /* original tty status without echo */
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int raw; /* raw tty status, no echo */
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int curr; /* row position of cursor */
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int curc; /* column position of cursor */
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int begscr; /* 'beginning' of screen
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(not including board) */
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int getout(); /* function to exit backgammon cleanly */
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