4.3BSD - /usr/src/games/backgammon/back.h

   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 */

Defined variables

Defined macros

Usage of this include