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1.1 root 1:
2: /*
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: *
7: * @(#)back.h 5.1 (Berkeley) 5/29/85
8: */
9:
10: #include <sgtty.h>
11:
12: #define rnum(r) (random()%r)
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 */
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