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pl_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: @(#)pl_main.c	5.5 (Berkeley) 2/28/91";*/
     36 static char rcsid[] = "$Id: pl_main.c,v 1.3 1994/01/13 19:22:29 glass Exp $";
     37 #endif /* not lint */
     38 
     39 #include "player.h"
     40 #include <sys/types.h>
     41 #include <sys/wait.h>
     42 
     43 void choke(), child();
     44 
     45 /*ARGSUSED*/
     46 pl_main()
     47 {
     48 
     49 	if (!SCREENTEST()) {
     50 		printf("Can't sail on this terminal.\n");
     51 		exit(1);
     52 	}
     53 	initialize();
     54 	Signal("Aye aye, Sir", (struct ship *)0);
     55 	play();
     56 	return 0;			/* for lint,  play() never returns */
     57 }
     58 
     59 initialize()
     60 {
     61 	register struct File *fp;
     62 	register struct ship *sp;
     63 	char captain[80];
     64 	char message[60];
     65 	int load;
     66 	register int n;
     67 	char *nameptr;
     68 	int nat[NNATION];
     69 
     70 	if (game < 0) {
     71 		(void) puts("Choose a scenario:\n");
     72 		(void) puts("\n\tNUMBER\tSHIPS\tIN PLAY\tTITLE");
     73 		for (n = 0; n < NSCENE; n++) {
     74 			/* ( */
     75 			printf("\t%d):\t%d\t%s\t%s\n", n, scene[n].vessels,
     76 				sync_exists(n) ? "YES" : "no",
     77 				scene[n].name);
     78 		}
     79 reprint:
     80 		printf("\nScenario number? ");
     81 		(void) fflush(stdout);
     82 		(void) scanf("%d", &game);
     83 		while (getchar() != '\n')
     84 			;
     85 	}
     86 	if (game < 0 || game >= NSCENE) {
     87 		(void) puts("Very funny.");
     88 		exit(1);
     89 	}
     90 	cc = &scene[game];
     91 	ls = SHIP(cc->vessels);
     92 
     93 	for (n = 0; n < NNATION; n++)
     94 		nat[n] = 0;
     95 	foreachship(sp) {
     96 		if (sp->file == NULL &&
     97 		    (sp->file = (struct File *)calloc(1, sizeof (struct File))) == NULL) {
     98 			(void) puts("OUT OF MEMORY");
     99 			exit(1);
    100 		}
    101 		sp->file->index = sp - SHIP(0);
    102 		sp->file->stern = nat[sp->nationality]++;
    103 		sp->file->dir = sp->shipdir;
    104 		sp->file->row = sp->shiprow;
    105 		sp->file->col = sp->shipcol;
    106 	}
    107 	windspeed = cc->windspeed;
    108 	winddir = cc->winddir;
    109 
    110 	(void) signal(SIGHUP, choke);
    111 	(void) signal(SIGINT, choke);
    112 
    113 	hasdriver = sync_exists(game);
    114 	if (sync_open() < 0) {
    115 		perror("sail: syncfile");
    116 		exit(1);
    117 	}
    118 
    119 	if (hasdriver) {
    120 		(void) puts("Synchronizing with the other players...");
    121 		(void) fflush(stdout);
    122 		if (Sync() < 0)
    123 			leave(LEAVE_SYNC);
    124 	}
    125 	for (;;) {
    126 		foreachship(sp)
    127 			if (sp->file->captain[0] == 0 && !sp->file->struck
    128 			    && sp->file->captured == 0)
    129 				break;
    130 		if (sp >= ls) {
    131 			(void) puts("All ships taken in that scenario.");
    132 			foreachship(sp)
    133 				free((char *)sp->file);
    134 			sync_close(0);
    135 			people = 0;
    136 			goto reprint;
    137 		}
    138 		if (randomize) {
    139 			player = sp - SHIP(0);
    140 		} else {
    141 			printf("%s\n\n", cc->name);
    142 			foreachship(sp)
    143 				printf("  %2d:  %-10s %-15s  (%-2d pts)   %s\n",
    144 					sp->file->index,
    145 					countryname[sp->nationality],
    146 					sp->shipname,
    147 					sp->specs->pts,
    148 					saywhat(sp, 1));
    149 			printf("\nWhich ship (0-%d)? ", cc->vessels-1);
    150 			(void) fflush(stdout);
    151 			if (scanf("%d", &player) != 1 || player < 0
    152 			    || player >= cc->vessels) {
    153 				while (getchar() != '\n')
    154 					;
    155 				(void) puts("Say what?");
    156 				player = -1;
    157 			} else
    158 				while (getchar() != '\n')
    159 					;
    160 		}
    161 		if (player < 0)
    162 			continue;
    163 		if (Sync() < 0)
    164 			leave(LEAVE_SYNC);
    165 		fp = SHIP(player)->file;
    166 		if (fp->captain[0] || fp->struck || fp->captured != 0)
    167 			(void) puts("That ship is taken.");
    168 		else
    169 			break;
    170 	}
    171 
    172 	ms = SHIP(player);
    173 	mf = ms->file;
    174 	mc = ms->specs;
    175 
    176 	Write(W_BEGIN, ms, 0, 0, 0, 0, 0);
    177 	if (Sync() < 0)
    178 		leave(LEAVE_SYNC);
    179 
    180 	(void) signal(SIGCHLD, child);
    181 	if (!hasdriver)
    182 		switch (fork()) {
    183 		case 0:
    184 			longjmp(restart, MODE_DRIVER);
    185 			/*NOTREACHED*/
    186 		case -1:
    187 			perror("fork");
    188 			leave(LEAVE_FORK);
    189 			break;
    190 		default:
    191 			hasdriver++;
    192 		}
    193 
    194 	printf("Your ship is the %s, a %d gun %s (%s crew).\n",
    195 		ms->shipname, mc->guns, classname[mc->class],
    196 		qualname[mc->qual]);
    197 	if ((nameptr = (char *) getenv("SAILNAME")) && *nameptr)
    198 		(void) strncpy(captain, nameptr, sizeof captain);
    199 	else {
    200 		(void) printf("Your name, Captain? ");
    201 		(void) fflush(stdout);
    202 		(void) fgets(captain, sizeof captain, stdin);
    203 		if (!*captain)
    204 			(void) strcpy(captain, "no name");
    205 		else
    206 		    captain[strlen(captain) - 1] = '\0';
    207 	}
    208 	captain[sizeof captain - 1] = '\0';
    209 	Write(W_CAPTAIN, ms, 1, (int)captain, 0, 0, 0);
    210 	for (n = 0; n < 2; n++) {
    211 		char buf[10];
    212 
    213 		printf("\nInitial broadside %s (grape, chain, round, double): ",
    214 			n ? "right" : "left");
    215 		(void) fflush(stdout);
    216 		(void) scanf("%s", buf);
    217 		switch (*buf) {
    218 		case 'g':
    219 			load = L_GRAPE;
    220 			break;
    221 		case 'c':
    222 			load = L_CHAIN;
    223 			break;
    224 		case 'r':
    225 			load = L_ROUND;
    226 			break;
    227 		case 'd':
    228 			load = L_DOUBLE;
    229 			break;
    230 		default:
    231 			load = L_ROUND;
    232 		}
    233 		if (n) {
    234 			mf->loadR = load;
    235 			mf->readyR = R_LOADED|R_INITIAL;
    236 		} else {
    237 			mf->loadL = load;
    238 			mf->readyL = R_LOADED|R_INITIAL;
    239 		}
    240 	}
    241 
    242 	initscreen();
    243 	draw_board();
    244 	(void) sprintf(message, "Captain %s assuming command", captain);
    245 	Write(W_SIGNAL, ms, 1, (int)message, 0, 0, 0);
    246 	newturn();
    247 }
    248