1 /* $OpenBSD: back.h,v 1.2 1998/03/19 11:13:14 pjanzen 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. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * @(#)back.h 8.1 (Berkeley) 5/31/93 36 */ 37 38 #include <sys/types.h> 39 #include <sys/uio.h> 40 41 #include <fcntl.h> 42 #include <signal.h> 43 #include <stdio.h> 44 #include <stdlib.h> 45 #include <string.h> 46 #include <termios.h> 47 #include <term.h> 48 #include <unistd.h> 49 50 #define rnum(r) (random()%r) 51 #define D0 dice[0] 52 #define D1 dice[1] 53 #define swap {D0 ^= D1; D1 ^= D0; D0 ^= D1; d0 = 1-d0;} 54 55 #ifdef DEBUG 56 extern FILE *trace; 57 #endif 58 59 /* 60 * 61 * Some numerical conventions: 62 * 63 * Arrays have white's value in [0], red in [1]. 64 * Numeric values which are one color or the other use 65 * -1 for white, 1 for red. 66 * Hence, white will be negative values, red positive one. 67 * This makes a lot of sense since white is going in decending 68 * order around the board, and red is ascending. 69 * 70 */ 71 72 extern char EXEC[]; /* object for main program */ 73 extern char TEACH[]; /* object for tutorial program */ 74 75 extern int pnum; /* color of player: 76 -1 = white 77 1 = red 78 0 = both 79 2 = not yet init'ed */ 80 extern char args[100]; /* args passed to teachgammon and back */ 81 extern int acnt; /* length of args */ 82 extern int aflag; /* flag to ask for rules or instructions */ 83 extern int bflag; /* flag for automatic board printing */ 84 extern int cflag; /* case conversion flag */ 85 extern int hflag; /* flag for cleaning screen */ 86 extern int mflag; /* backgammon flag */ 87 extern int raflag; /* 'roll again' flag for recovered game */ 88 extern int rflag; /* recovered game flag */ 89 extern int tflag; /* cursor addressing flag */ 90 extern int rfl; /* saved value of rflag */ 91 extern int iroll; /* special flag for inputting rolls */ 92 extern int board[26]; /* board: negative values are white, 93 positive are red */ 94 extern int dice[2]; /* value of dice */ 95 extern int mvlim; /* 'move limit': max. number of moves */ 96 extern int mvl; /* working copy of mvlim */ 97 extern int p[5]; /* starting position of moves */ 98 extern int g[5]; /* ending position of moves (goals) */ 99 extern int h[4]; /* flag for each move if a man was hit */ 100 extern int cturn; /* whose turn it currently is: 101 -1 = white 102 1 = red 103 0 = just quit 104 -2 = white just lost 105 2 = red just lost */ 106 extern int d0; /* flag if dice have been reversed from 107 original position */ 108 extern int table[6][6]; /* odds table for possible rolls */ 109 extern int rscore; /* red's score */ 110 extern int wscore; /* white's score */ 111 extern int gvalue; /* value of game (64 max.) */ 112 extern int dlast; /* who doubled last (0 = neither) */ 113 extern int bar; /* position of bar for current player */ 114 extern int home; /* position of home for current player */ 115 extern int off[2]; /* number of men off board */ 116 extern int *offptr; /* pointer to off for current player */ 117 extern int *offopp; /* pointer to off for opponent */ 118 extern int in[2]; /* number of men in inner table */ 119 extern int *inptr; /* pointer to in for current player */ 120 extern int *inopp; /* pointer to in for opponent */ 121 122 extern int ncin; /* number of characters in cin */ 123 extern char cin[100]; /* input line of current move 124 (used for reconstructing input after 125 a backspace) */ 126 127 extern char *color[]; /* colors as strings */ 128 extern char **colorptr; /* color of current player */ 129 extern char **Colorptr; /* color of current player, capitalized */ 130 extern int colen; /* length of color of current player */ 131 132 extern struct termios old, noech, raw;/* original tty status */ 133 134 extern int curr; /* row position of cursor */ 135 extern int curc; /* column position of cursor */ 136 extern int begscr; /* 'beginning' of screen 137 (not including board) */ 138 139 int addbuf __P((int)); 140 void backone __P((int)); 141 void bsect __P((int, int, int, int)); 142 void buflush __P((void)); 143 int canhit __P((int, int)); 144 int checkd __P((int)); 145 int checkmove __P((int)); 146 void clear __P((void)); 147 void clend __P((void)); 148 void cline __P((void)); 149 int count __P((void)); 150 void curmove __P((int, int)); 151 int dotable __P((char, int)); 152 void errexit __P((const char *)); 153 void fancyc __P((int)); 154 void fboard __P((void)); 155 void fixcol __P((int, int, int, int, int)); 156 void fixpos __P((int, int, int, int, int)); 157 void fixtty __P((struct termios *)); 158 void getarg __P((int, char **)); 159 int getcaps __P((char *)); 160 void getmove __P((void)); 161 void getout __P((int)); /* function to exit backgammon cleanly */ 162 void gwrite __P((void)); 163 void init __P((void)); 164 int last __P((void)); 165 int makmove __P((int)); 166 int movallow __P((void)); 167 void movback __P((int)); 168 void moverr __P((int)); 169 int movokay __P((int)); 170 void newpos __P((void)); 171 void nexturn __P((void)); 172 void norec __P((char *)); 173 void odds __P((int, int, int)); 174 void proll __P((void)); 175 int quit __P((void)); 176 int readc __P((void)); 177 void recover __P((char *)); 178 void refresh __P((void)); 179 void roll __P((void)); 180 int rsetbrd __P((void)); 181 void save __P((int)); 182 void strset __P((char *, char *)); 183 int text __P((char **)); 184 void tos __P((void)); 185 void wrboard __P((void)); 186 void wrbsub __P((void)); 187 void wrhit __P((int)); 188 void wrint __P((int)); 189 void writec __P((char)); 190 void writel __P((char *)); 191 void wrscore __P((void)); 192 int yorn __P((char)); 193