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dr_main.c revision 1.1 
      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[] = "@(#)dr_main.c	5.5 (Berkeley) 6/1/90";
     36 #endif /* not lint */
     37 
     38 #include "driver.h"
     39 
     40 dr_main()
     41 {
     42 	register int n;
     43 	register struct ship *sp;
     44 	int nat[NNATION];
     45 	int value = 0;
     46 
     47 	(void) signal(SIGINT, SIG_IGN);
     48 	(void) signal(SIGQUIT, SIG_IGN);
     49 	(void) signal(SIGTSTP, SIG_IGN);
     50 	if (issetuid)
     51 		(void) setruid(geteuid());
     52 	if (game < 0 || game >= NSCENE) {
     53 		fprintf(stderr, "DRIVER: Bad game number %d\n", game);
     54 		exit(1);
     55 	}
     56 	cc = &scene[game];
     57 	ls = SHIP(cc->vessels);
     58 	if (sync_open() < 0) {
     59 		perror("driver: syncfile");
     60 		exit(1);
     61 	}
     62 	for (n = 0; n < NNATION; n++)
     63 		nat[n] = 0;
     64 	foreachship(sp) {
     65 		if (sp->file == NULL &&
     66 		    (sp->file = (struct File *)calloc(1, sizeof (struct File))) == NULL) {
     67 			(void) fprintf(stderr, "DRIVER: Out of memory.\n");
     68 			exit(1);
     69 		}
     70 		sp->file->index = sp - SHIP(0);
     71 		sp->file->loadL = L_ROUND;
     72 		sp->file->loadR = L_ROUND;
     73 		sp->file->readyR = R_LOADED|R_INITIAL;
     74 		sp->file->readyL = R_LOADED|R_INITIAL;
     75 		sp->file->stern = nat[sp->nationality]++;
     76 		sp->file->dir = sp->shipdir;
     77 		sp->file->row = sp->shiprow;
     78 		sp->file->col = sp->shipcol;
     79 	}
     80 	windspeed = cc->windspeed;
     81 	winddir = cc->winddir;
     82 	people = 0;
     83 	for (;;) {
     84 		sleep(7);
     85 		if (Sync() < 0) {
     86 			value = 1;
     87 			break;
     88 		}
     89 		if (next() < 0)
     90 			break;
     91 		unfoul();
     92 		checkup();
     93 		prizecheck();
     94 		moveall();
     95 		thinkofgrapples();
     96 		boardcomp();
     97 		compcombat();
     98 		resolve();
     99 		reload();
    100 		checksails();
    101 		if (Sync() < 0) {
    102 			value = 1;
    103 			break;
    104 		}
    105 	}
    106 	sync_close(1);
    107 	return value;
    108 }
    109