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dr_main.c revision 1.3 
      1 /*
      2  * Copyright (c) 1983 Regents of the University of California.
      3  * All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  * 1. Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  * 2. Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in the
     12  *    documentation and/or other materials provided with the distribution.
     13  * 3. All advertising materials mentioning features or use of this software
     14  *    must display the following acknowledgement:
     15  *	This product includes software developed by the University of
     16  *	California, Berkeley and its contributors.
     17  * 4. Neither the name of the University nor the names of its contributors
     18  *    may be used to endorse or promote products derived from this software
     19  *    without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     31  * SUCH DAMAGE.
     32  */
     33 
     34 #ifndef lint
     35 /*static char sccsid[] = "from: @(#)dr_main.c	5.5 (Berkeley) 6/1/90";*/
     36 static char rcsid[] = "$Id: dr_main.c,v 1.3 1994/04/08 18:23:31 cgd Exp $";
     37 #endif /* not lint */
     38 
     39 #include "driver.h"
     40 
     41 dr_main()
     42 {
     43 	register int n;
     44 	register struct ship *sp;
     45 	int nat[NNATION];
     46 	int value = 0;
     47 
     48 	(void) signal(SIGINT, SIG_IGN);
     49 	(void) signal(SIGQUIT, SIG_IGN);
     50 	(void) signal(SIGTSTP, SIG_IGN);
     51 	if (issetuid)
     52 		(void) setuid(geteuid());
     53 	if (game < 0 || game >= NSCENE) {
     54 		fprintf(stderr, "DRIVER: Bad game number %d\n", game);
     55 		exit(1);
     56 	}
     57 	cc = &scene[game];
     58 	ls = SHIP(cc->vessels);
     59 	if (sync_open() < 0) {
     60 		perror("driver: syncfile");
     61 		exit(1);
     62 	}
     63 	for (n = 0; n < NNATION; n++)
     64 		nat[n] = 0;
     65 	foreachship(sp) {
     66 		if (sp->file == NULL &&
     67 		    (sp->file = (struct File *)calloc(1, sizeof (struct File))) == NULL) {
     68 			(void) fprintf(stderr, "DRIVER: Out of memory.\n");
     69 			exit(1);
     70 		}
     71 		sp->file->index = sp - SHIP(0);
     72 		sp->file->loadL = L_ROUND;
     73 		sp->file->loadR = L_ROUND;
     74 		sp->file->readyR = R_LOADED|R_INITIAL;
     75 		sp->file->readyL = R_LOADED|R_INITIAL;
     76 		sp->file->stern = nat[sp->nationality]++;
     77 		sp->file->dir = sp->shipdir;
     78 		sp->file->row = sp->shiprow;
     79 		sp->file->col = sp->shipcol;
     80 	}
     81 	windspeed = cc->windspeed;
     82 	winddir = cc->winddir;
     83 	people = 0;
     84 	for (;;) {
     85 		sleep(7);
     86 		if (Sync() < 0) {
     87 			value = 1;
     88 			break;
     89 		}
     90 		if (next() < 0)
     91 			break;
     92 		unfoul();
     93 		checkup();
     94 		prizecheck();
     95 		moveall();
     96 		thinkofgrapples();
     97 		boardcomp();
     98 		compcombat();
     99 		resolve();
    100 		reload();
    101 		checksails();
    102 		if (Sync() < 0) {
    103 			value = 1;
    104 			break;
    105 		}
    106 	}
    107 	sync_close(1);
    108 	return value;
    109 }
    110