479 lines
8.6 KiB
C
479 lines
8.6 KiB
C
/*
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* Copyright (c) 1980 Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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/*static char sccsid[] = "from: @(#)subs.c 5.5 (Berkeley) 6/1/90";*/
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static char rcsid[] = "$Id: subs.c,v 1.2 1993/08/01 18:56:37 mycroft Exp $";
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#endif /* not lint */
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#include <stdio.h>
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#include "back.h"
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int buffnum;
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char outbuff[BUFSIZ];
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static char plred[] = "Player is red, computer is white.";
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static char plwhite[] = "Player is white, computer is red.";
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static char nocomp[] = "(No computer play.)";
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char *descr[] = {
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"Usage: backgammon [-] [n r w b pr pw pb t3a]\n",
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"\t-\tgets this list\n\tn\tdon't ask for rules or instructions",
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"\tr\tplayer is red (implies n)\n\tw\tplayer is white (implies n)",
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"\tb\ttwo players, red and white (implies n)",
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"\tpr\tprint the board before red's turn",
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"\tpw\tprint the board before white's turn",
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"\tpb\tprint the board before both player's turn",
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"\tterm\tterminal is a term",
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"\tsfile\trecover saved game from file",
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0
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};
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errexit (s)
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register char *s;
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{
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write (2,"\n",1);
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perror (s);
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getout();
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}
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strset (s1,s2)
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register char *s1, *s2;
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{
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while ( (*s1++ = *s2++) != '\0');
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}
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addbuf (c)
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register char c;
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{
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buffnum++;
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if (buffnum == BUFSIZ) {
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if (write(1,outbuff,BUFSIZ) != BUFSIZ)
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errexit ("addbuf (write):");
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buffnum = 0;
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}
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outbuff[buffnum] = c;
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}
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buflush () {
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if (buffnum < 0)
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return;
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buffnum++;
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if (write (1,outbuff,buffnum) != buffnum)
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errexit ("buflush (write):");
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buffnum = -1;
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}
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readc () {
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char c;
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if (tflag) {
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cline();
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newpos();
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}
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buflush();
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if (read(0,&c,1) != 1)
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errexit ("readc");
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#ifdef WHY_IS_THIS_HARDWIRED_IN_HERE
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if (c == '\177')
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getout();
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#endif
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if (c == '\033' || c == '\015')
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return ('\n');
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if (cflag)
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return (c);
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if (c == '\014')
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return ('R');
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if (c >= 'a' && c <= 'z')
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return (c & 0137);
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return (c);
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}
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writec (c)
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char c;
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{
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if (tflag)
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fancyc (c);
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else
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addbuf (c);
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}
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writel (l)
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register char *l;
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{
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#ifdef DEBUG
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register char *s;
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if (trace == NULL)
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trace = fopen ("bgtrace","w");
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fprintf (trace,"writel: \"");
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for (s = l; *s; s++) {
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if (*s < ' ' || *s == '\177')
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fprintf (trace,"^%c",(*s)^0100);
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else
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putc (*s,trace);
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}
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fprintf (trace,"\"\n");
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fflush (trace);
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#endif
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while (*l)
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writec (*l++);
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}
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proll () {
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if (d0)
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swap;
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if (cturn == 1)
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writel ("Red's roll: ");
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else
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writel ("White's roll: ");
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writec (D0+'0');
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writec ('\040');
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writec (D1+'0');
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if (tflag)
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cline();
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}
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wrint (n)
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int n;
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{
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register int i, j, t;
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for (i = 4; i > 0; i--) {
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t = 1;
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for (j = 0; j<i; j++)
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t *= 10;
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if (n > t-1)
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writec ((n/t)%10+'0');
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}
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writec (n%10+'0');
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}
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gwrite() {
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register int r, c;
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if (tflag) {
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r = curr;
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c = curc;
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curmove (16,0);
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}
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if (gvalue > 1) {
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writel ("Game value: ");
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wrint (gvalue);
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writel (". ");
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if (dlast == -1)
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writel (color[0]);
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else
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writel (color[1]);
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writel (" doubled last.");
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} else {
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switch (pnum) {
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case -1: /* player is red */
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writel (plred);
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break;
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case 0: /* player is both colors */
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writel (nocomp);
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break;
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case 1: /* player is white */
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writel (plwhite);
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}
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}
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if (rscore || wscore) {
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writel (" ");
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wrscore();
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}
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if (tflag) {
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cline();
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curmove (r,c);
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}
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}
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quit () {
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register int i;
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if (tflag) {
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curmove (20,0);
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clend();
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} else
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writec ('\n');
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writel ("Are you sure you want to quit?");
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if (yorn (0)) {
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if (rfl) {
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writel ("Would you like to save this game?");
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if (yorn(0))
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save(0);
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}
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cturn = 0;
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return (1);
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}
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return (0);
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}
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yorn (special)
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register char special; /* special response */
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{
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register char c;
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register int i;
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i = 1;
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while ( (c = readc()) != 'Y' && c != 'N') {
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if (special && c == special)
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return (2);
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if (i) {
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if (special) {
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writel (" (Y, N, or ");
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writec (special);
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writec (')');
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} else
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writel (" (Y or N)");
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i = 0;
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} else
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writec ('\007');
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}
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if (c == 'Y')
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writel (" Yes.\n");
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else
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writel (" No.\n");
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if (tflag)
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buflush();
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return (c == 'Y');
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}
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wrhit (i)
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register int i;
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{
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writel ("Blot hit on ");
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wrint (i);
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writec ('.');
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writec ('\n');
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}
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nexturn () {
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register int c;
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cturn = -cturn;
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c = cturn/abs(cturn);
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home = bar;
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bar = 25-bar;
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offptr += c;
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offopp -= c;
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inptr += c;
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inopp -= c;
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Colorptr += c;
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colorptr += c;
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}
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getarg (arg)
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register char ***arg;
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{
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register char **s;
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/* process arguments here. dashes are ignored, nbrw are ignored
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if the game is being recovered */
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s = *arg;
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while (s[0][0] == '-') {
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switch (s[0][1]) {
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/* don't ask if rules or instructions needed */
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case 'n':
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if (rflag)
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break;
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aflag = 0;
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args[acnt++] = 'n';
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break;
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/* player is both read and white */
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case 'b':
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if (rflag)
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break;
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pnum = 0;
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aflag = 0;
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args[acnt++] = 'b';
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break;
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/* player is red */
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case 'r':
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if (rflag)
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break;
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pnum = -1;
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aflag = 0;
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args[acnt++] = 'r';
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break;
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/* player is white */
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case 'w':
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if (rflag)
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break;
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pnum = 1;
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aflag = 0;
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args[acnt++] = 'w';
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break;
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/* print board after move according to following character */
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case 'p':
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if (s[0][2] != 'r' && s[0][2] != 'w' && s[0][2] != 'b')
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break;
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args[acnt++] = 'p';
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args[acnt++] = s[0][2];
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if (s[0][2] == 'r')
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bflag = 1;
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if (s[0][2] == 'w')
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bflag = -1;
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if (s[0][2] == 'b')
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bflag = 0;
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break;
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case 't':
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if (s[0][2] == '\0') { /* get terminal caps */
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s++;
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tflag = getcaps (*s);
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} else
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tflag = getcaps (&s[0][2]);
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break;
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case 's':
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s++;
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/* recover file */
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recover (s[0]);
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break;
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}
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s++;
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}
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if (s[0] != 0)
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recover(s[0]);
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}
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init () {
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register int i;
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for (i = 0; i < 26;)
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board[i++] = 0;
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board[1] = 2;
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board[6] = board[13] = -5;
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board[8] = -3;
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board[12] = board[19] = 5;
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board[17] = 3;
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board[24] = -2;
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off[0] = off[1] = -15;
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in[0] = in[1] = 5;
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gvalue = 1;
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dlast = 0;
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}
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wrscore () {
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writel ("Score: ");
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writel (color[1]);
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writec (' ');
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wrint (rscore);
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writel (", ");
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writel (color[0]);
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writec (' ');
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wrint (wscore);
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}
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fixtty (mode)
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int mode;
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{
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if (tflag)
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newpos();
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buflush();
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tty.sg_flags = mode;
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if (stty (0,&tty) < 0)
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errexit("fixtty");
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}
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getout () {
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/* go to bottom of screen */
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if (tflag) {
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curmove (23,0);
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cline();
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} else
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writec ('\n');
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/* fix terminal status */
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fixtty (old);
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exit();
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}
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roll () {
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register char c;
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register int row;
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register int col;
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if (iroll) {
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if (tflag) {
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row = curr;
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col = curc;
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curmove (17,0);
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} else
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writec ('\n');
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writel ("ROLL: ");
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c = readc();
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if (c != '\n') {
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while (c < '1' || c > '6')
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c = readc();
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D0 = c-'0';
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writec (' ');
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writec (c);
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c = readc();
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while (c < '1' || c > '6')
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c = readc();
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D1 = c-'0';
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writec (' ');
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writec (c);
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if (tflag) {
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curmove (17,0);
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cline();
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curmove (row,col);
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} else
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writec ('\n');
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return;
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}
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if (tflag) {
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curmove (17,0);
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cline();
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curmove (row,col);
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} else
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writec ('\n');
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}
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D0 = rnum(6)+1;
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D1 = rnum(6)+1;
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d0 = 0;
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}
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