projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| e0bbfbf9 | 1 | |
| 10c3cce6 | 2 | /* |
| e0bbfbf9 DF |
3 | * Copyright (c) 1980 Regents of the University of California. |
| 4 | * All rights reserved. The Berkeley software License Agreement | |
| 5 | * specifies the terms and conditions for redistribution. | |
| 6 | * | |
| 95f51977 | 7 | * @(#)back.h 5.1 (Berkeley) 5/29/85 |
| 10c3cce6 RH |
8 | */ |
| 9 | ||
| 10 | #include <sgtty.h> | |
| 11 | ||
| 4ca98259 | 12 | #define rnum(r) (random()%r) |
| 10c3cce6 RH |
13 | #define D0 dice[0] |
| 14 | #define D1 dice[1] | |
| 15 | #define swap {D0 ^= D1; D1 ^= D0; D0 ^= D1; d0 = 1-d0;} | |
| 16 | ||
| 17 | /* | |
| 18 | * | |
| 19 | * Some numerical conventions: | |
| 20 | * | |
| 21 | * Arrays have white's value in [0], red in [1]. | |
| 22 | * Numeric values which are one color or the other use | |
| 23 | * -1 for white, 1 for red. | |
| 24 | * Hence, white will be negative values, red positive one. | |
| 25 | * This makes a lot of sense since white is going in decending | |
| 26 | * order around the board, and red is ascending. | |
| 27 | * | |
| 28 | */ | |
| 29 | ||
| 30 | char EXEC[]; /* object for main program */ | |
| 31 | char TEACH[]; /* object for tutorial program */ | |
| 32 | ||
| 33 | int pnum; /* color of player: | |
| 34 | -1 = white | |
| 35 | 1 = red | |
| 36 | 0 = both | |
| 37 | 2 = not yet init'ed */ | |
| 38 | char args[100]; /* args passed to teachgammon and back */ | |
| 39 | int acnt; /* length of args */ | |
| 40 | int aflag; /* flag to ask for rules or instructions */ | |
| 41 | int bflag; /* flag for automatic board printing */ | |
| 42 | int cflag; /* case conversion flag */ | |
| 43 | int hflag; /* flag for cleaning screen */ | |
| 44 | int mflag; /* backgammon flag */ | |
| 45 | int raflag; /* 'roll again' flag for recovered game */ | |
| 46 | int rflag; /* recovered game flag */ | |
| 47 | int tflag; /* cursor addressing flag */ | |
| 48 | int rfl; /* saved value of rflag */ | |
| 49 | int iroll; /* special flag for inputting rolls */ | |
| 50 | int board[26]; /* board: negative values are white, | |
| 51 | positive are red */ | |
| 52 | int dice[2]; /* value of dice */ | |
| 53 | int mvlim; /* 'move limit': max. number of moves */ | |
| 54 | int mvl; /* working copy of mvlim */ | |
| 55 | int p[5]; /* starting position of moves */ | |
| 56 | int g[5]; /* ending position of moves (goals) */ | |
| 57 | int h[4]; /* flag for each move if a man was hit */ | |
| 58 | int cturn; /* whose turn it currently is: | |
| 59 | -1 = white | |
| 60 | 1 = red | |
| 61 | 0 = just quitted | |
| 62 | -2 = white just lost | |
| 63 | 2 = red just lost */ | |
| 64 | int d0; /* flag if dice have been reversed from | |
| 65 | original position */ | |
| 66 | int table[6][6]; /* odds table for possible rolls */ | |
| 67 | int rscore; /* red's score */ | |
| 68 | int wscore; /* white's score */ | |
| 69 | int gvalue; /* value of game (64 max.) */ | |
| 70 | int dlast; /* who doubled last (0 = neither) */ | |
| 71 | int bar; /* position of bar for current player */ | |
| 72 | int home; /* position of home for current player */ | |
| 73 | int off[2]; /* number of men off board */ | |
| 74 | int *offptr; /* pointer to off for current player */ | |
| 75 | int *offopp; /* pointer to off for opponent */ | |
| 76 | int in[2]; /* number of men in inner table */ | |
| 77 | int *inptr; /* pointer to in for current player */ | |
| 78 | int *inopp; /* pointer to in for opponent */ | |
| 79 | ||
| 80 | int ncin; /* number of characters in cin */ | |
| 81 | char cin[100]; /* input line of current move | |
| 82 | (used for reconstructing input after | |
| 83 | a backspace) */ | |
| 84 | ||
| 85 | char *color[]; | |
| 86 | /* colors as strings */ | |
| 87 | char **colorptr; /* color of current player */ | |
| 88 | char **Colorptr; /* color of current player, capitalized */ | |
| 89 | int colen; /* length of color of current player */ | |
| 90 | ||
| 91 | struct sgttyb tty; /* tty information buffer */ | |
| 92 | int old; /* original tty status */ | |
| 93 | int noech; /* original tty status without echo */ | |
| 94 | int raw; /* raw tty status, no echo */ | |
| 95 | ||
| 96 | int curr; /* row position of cursor */ | |
| 97 | int curc; /* column position of cursor */ | |
| 98 | int begscr; /* 'beginning' of screen | |
| 99 | (not including board) */ | |
| 100 | ||
| 101 | int getout(); /* function to exit backgammon cleanly */ |