back.h revision 1.13
1 /* $NetBSD: back.h,v 1.13 2003/08/07 09:36:56 agc Exp $ */ 2 3 /* 4 * Copyright (c) 1980, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)back.h 8.1 (Berkeley) 5/31/93 32 */ 33 34 #include <sys/types.h> 35 #include <sys/uio.h> 36 37 #include <fcntl.h> 38 #include <signal.h> 39 #include <stdio.h> 40 #include <stdlib.h> 41 #include <string.h> 42 #include <termios.h> 43 #include <termcap.h> 44 #include <unistd.h> 45 46 #define rnum(r) (random()%r) 47 #define D0 dice[0] 48 #define D1 dice[1] 49 #define swap {D0 ^= D1; D1 ^= D0; D0 ^= D1; d0 = 1-d0;} 50 51 /* 52 * 53 * Some numerical conventions: 54 * 55 * Arrays have white's value in [0], red in [1]. 56 * Numeric values which are one color or the other use 57 * -1 for white, 1 for red. 58 * Hence, white will be negative values, red positive one. 59 * This makes a lot of sense since white is going in decending 60 * order around the board, and red is ascending. 61 * 62 */ 63 64 extern const char EXEC[]; /* object for main program */ 65 extern const char TEACH[]; /* object for tutorial program */ 66 67 extern int pnum; /* color of player: 68 -1 = white 69 1 = red 70 0 = both 71 2 = not yet init'ed */ 72 extern char args[100]; /* args passed to teachgammon and back */ 73 extern int acnt; /* length of args */ 74 extern int aflag; /* flag to ask for rules or instructions */ 75 extern int bflag; /* flag for automatic board printing */ 76 extern int cflag; /* case conversion flag */ 77 extern int hflag; /* flag for cleaning screen */ 78 extern int mflag; /* backgammon flag */ 79 extern int raflag; /* 'roll again' flag for recovered game */ 80 extern int rflag; /* recovered game flag */ 81 extern int tflag; /* cursor addressing flag */ 82 extern int rfl; /* saved value of rflag */ 83 extern int iroll; /* special flag for inputting rolls */ 84 extern int board[26]; /* board: negative values are white, 85 positive are red */ 86 extern int dice[2]; /* value of dice */ 87 extern int mvlim; /* 'move limit': max. number of moves */ 88 extern int mvl; /* working copy of mvlim */ 89 extern int p[5]; /* starting position of moves */ 90 extern int g[5]; /* ending position of moves (goals) */ 91 extern int h[4]; /* flag for each move if a man was hit */ 92 extern int cturn; /* whose turn it currently is: 93 -1 = white 94 1 = red 95 0 = just quitted 96 -2 = white just lost 97 2 = red just lost */ 98 extern int d0; /* flag if dice have been reversed from 99 original position */ 100 extern int table[6][6]; /* odds table for possible rolls */ 101 extern int rscore; /* red's score */ 102 extern int wscore; /* white's score */ 103 extern int gvalue; /* value of game (64 max.) */ 104 extern int dlast; /* who doubled last (0 = neither) */ 105 extern int bar; /* position of bar for current player */ 106 extern int home; /* position of home for current player */ 107 extern int off[2]; /* number of men off board */ 108 extern int *offptr; /* pointer to off for current player */ 109 extern int *offopp; /* pointer to off for opponent */ 110 extern int in[2]; /* number of men in inner table */ 111 extern int *inptr; /* pointer to in for current player */ 112 extern int *inopp; /* pointer to in for opponent */ 113 114 extern int ncin; /* number of characters in cin */ 115 extern char cin[100]; /* input line of current move 116 (used for reconstructing input after 117 a backspace) */ 118 119 extern const char *const color[]; 120 /* colors as strings */ 121 extern const char *const *colorptr; /* color of current player */ 122 extern const char *const *Colorptr; /* color of current player, capitalized */ 123 extern int colen; /* length of color of current player */ 124 125 extern struct termios old, noech, raw;/* original tty status */ 126 127 extern int curr; /* row position of cursor */ 128 extern int curc; /* column position of cursor */ 129 extern int begscr; /* 'beginning' of screen 130 (not including board) */ 131 132 int addbuf __P((int)); 133 void backone __P((int)); 134 void bsect __P((int, int, int, int)); 135 void buflush __P((void)); 136 int canhit __P((int, int)); 137 int checkd __P((int)); 138 int checkmove __P((int)); 139 void clear __P((void)); 140 void clend __P((void)); 141 void cline __P((void)); 142 int count __P((void)); 143 void curmove __P((int, int)); 144 int dotable __P((char, int)); 145 void errexit __P((const char *)) __attribute__((__noreturn__)); 146 void fancyc __P((int)); 147 void fboard __P((void)); 148 void fixcol __P((int, int, int, int, int)); 149 void fixpos __P((int, int, int, int, int)); 150 void fixtty __P((struct termios *)); 151 void getarg __P((char ***)); 152 int getcaps __P((const char *)); 153 void getmove __P((void)); 154 void getout __P((int)) __attribute__((__noreturn__)); 155 void gwrite __P((void)); 156 void init __P((void)); 157 int last __P((void)); 158 int main __P((int, char *[])); 159 int makmove __P((int)); 160 int movallow __P((void)); 161 void movback __P((int)); 162 void moverr __P((int)); 163 int movokay __P((int)); 164 void newline __P((void)); 165 void newpos __P((void)); 166 void nexturn __P((void)); 167 void norec __P((const char *)) __attribute__((__noreturn__)); 168 void odds __P((int, int, int)); 169 void proll __P((void)); 170 int quit __P((void)); 171 int readc __P((void)); 172 void recover __P((const char *)); 173 void refresh __P((void)); 174 void roll __P((void)); 175 int rsetbrd __P((void)); 176 void save __P((int)); 177 int text __P((const char *const *)); 178 void wrboard __P((void)); 179 void wrbsub __P((void)); 180 void wrhit __P((int)); 181 void wrint __P((int)); 182 void writec __P((char)); 183 void writel __P((const char *)); 184 void wrscore __P((void)); 185 int yorn __P((char)); 186
Indexes created Sat Sep 27 22:09:54 GMT 2025