BSD 4_4 release
[unix-history] / usr / src / games / sail / pl_1.c
index 3885320..4687b1f 100644 (file)
+/*
+ * Copyright (c) 1983, 1993
+ *     The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *     This product includes software developed by the University of
+ *     California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
 #ifndef lint
 #ifndef lint
-static char *sccsid = "@(#)pl_1.c      1.4 83/05/19";
-#endif
+static char sccsid[] = "@(#)pl_1.c     8.1 (Berkeley) 5/31/93";
+#endif /* not lint */
+
 #include "player.h"
 #include <sys/types.h>
 #include "player.h"
 #include <sys/types.h>
-#include <sys/stat.h>
-
-WINDOW *view,*slot;
-/* int devestate; */
-
-acceptcombat()
+#include <sys/wait.h>
+
+/*
+ * If we get here before a ship is chosen, then ms == 0 and
+ * we don't want to update the score file, or do any Write's either.
+ * We can assume the sync file is already created and may need
+ * to be removed.
+ * Of course, we don't do any more Sync()'s if we got here
+ * because of a Sync() failure.
+ */
+leave(conditions)
+int conditions;
 {
 {
-    int crew[3], men = 0, rangeofshot, target, temp;
-    int n, r, guns[2], load[2], car[2], roll[2];
-    int ready[2], index, rakehim, sternrake;
-    int shootat[2], /*power,*/ hit[2], closest[2], ship;
-    int hhits = 0, ghits = 0, rhits = 0, chits = 0;
-    int buf;
-    struct shipspecs *ptr;
-    struct File *ptr1;
-
-    ptr = &specs[scene[game].ship[player].shipnum];
-    ptr1 = scene[game].ship[player].file;
-    crew[0] = ptr -> crew1;
-    crew[1] = ptr -> crew2;
-    crew[2] = ptr -> crew3;
-    ready[0] = ptr1 -> readyL;
-    ready[1] = ptr1 -> readyR;
-    load[0] = ptr1 -> loadL;
-    load[1] = ptr1 -> loadR;
-    guns[0] = ptr -> gunL;
-    guns[1] = ptr -> gunR;
-    car[0] = ptr -> carL;
-    car[1] = ptr -> carR;
-    for (n = 0; n < 3; n++){
-       if (ptr1 -> OBP[n].turnsent)
-           men += ptr1 -> OBP[n].mensent;
-    }
-    for (n = 0; n < 3; n++){
-       if (ptr1 -> DBP[n].turnsent)
-           men += ptr1 -> DBP[n].mensent;
-    }
-    if (men) {
-       crew[0] = men/100 ? 0 : crew[0] != 0;
-       crew[1] = (men%100)/10 ? 0 : crew[1] != 0;
-       crew[2] = men%10 ? 0 : crew[2] != 0;
-    }
-    for (r = 0; r < 2; r++) {
-       if ((guns[r] || car[r]) && crew[2] && load[r] &&
-         ready[r] <= 0 && !ptr1 -> struck &&
-         ((closest[r] = closestenemy(player, (r ? 'r' : 'l'), 1)) != 30000)) {
-               switch(load[r]) {
-                   case GRAPE:
-                       rangeofshot = 1;
+       (void) signal(SIGHUP, SIG_IGN);
+       (void) signal(SIGINT, SIG_IGN);
+       (void) signal(SIGQUIT, SIG_IGN);
+       (void) signal(SIGALRM, SIG_IGN);
+       (void) signal(SIGCHLD, SIG_IGN);
+
+       if (done_curses) {
+               Signal("It looks like you've had it!",
+                       (struct ship *)0);
+               switch (conditions) {
+               case LEAVE_QUIT:
                        break;
                        break;
-                   case CHAIN:
-                       rangeofshot = 3;
+               case LEAVE_CAPTURED:
+                       Signal("Your ship was captured.",
+                               (struct ship *)0);
                        break;
                        break;
-                   case DOUBLE:
-                       rangeofshot = 1;
+               case LEAVE_HURRICAN:
+                       Signal("Hurricane!  All ships destroyed.",
+                               (struct ship *)0);
                        break;
                        break;
-                   case ROUND:
-                       rangeofshot = 10;
+               case LEAVE_DRIVER:
+                       Signal("The driver died.", (struct ship *)0);
                        break;
                        break;
+               case LEAVE_SYNC:
+                       Signal("Synchronization error.", (struct ship *)0);
+                       break;
+               default:
+                       Signal("A funny thing happened (%d).",
+                               (struct ship *)0, conditions);
                }
                }
-/*             if (power)
-                   rangeofshot = 20; */
-               if ((target = range(player, closest[r])) <= rangeofshot &&
-                 !scene[game].ship[closest[r]].file -> struck &&
-                 (guns[r] || (car[r] && target < 3))) {
-                   Signal("%s (%c%c) within range of %s broadside.", closest[r], (r?"right":"left"));
-                   if (load[r] > CHAIN && target < 6) {
-                       Signal("Aim for hull or rigging? ", -1, 0);
-                       while ((buf = getch()) == EOF);
-                           addch(buf);
-                       if(buf == 'r')
-                           shootat[r] = RIGGING;
-                       else if (buf == 'h')
-                           shootat[r] = HULL;
-                       else {
-                           shootat[r] = -1;
-                           Signal("'Avast there! Hold your fire.'", -1, 0);
-                       }
-                   } else {
-                       shootat[r] = RIGGING;
-                       Signal("Fire? ", -1, 0);
-                       while((buf = getch()) == EOF);
-                           addch(buf);
-                       if (buf == 'n') {
-                           shootat[r] = -1;
-                           Signal("Belay that! Hold your fire.", -1, 0);
-                       }
-                   }
-                   if (shootat[r] != -1) {
-                       fired = 1;
-                       rakehim = gunsbear(player, closest[r]) && !gunsbear(closest[r], player);
-                       temp = portside(closest[r], player, 1) - pos[closest[r]].dir + 1;
-                       if (temp < 1)
-                           temp += 8;
-                       if (temp > 8)
-                           temp -= 8;
-                       sternrake = temp > 4 && temp < 6;
-/*                     if (power) {
-                           sternrake = 1;
-                           rakehim = 1;
-                           } */
-                       if (rakehim && !sternrake)
-                           Signal("Raking the %s!", closest[r], 0);
-                       else if (rakehim && sternrake)
-                           Signal("Stern Rake! %s splintering!", closest[r], 0);
-                       index = guns[r];
-                       if (target < 3)
-                           index += car[r];
-                       index = (index - 1)/3;
-                       index = index > 8 ? 8 : index;
-                       if (!rakehim)
-                           hit[r] = HDT[index][target-1];
-                       else
-                           hit[r] = HDTrake[index][target-1];
-                       if (rakehim && sternrake)
-                           hit[r]++;
-                       hit[r] += QUAL[index][ptr -> qual-1];
-                       for (n=0; n < 3 && ptr1 -> captured < 0; n++)
-                           if (!crew[n])
-                               if (index <= 5)
-                                   hit[r]--;
-                               else
-                                   hit[r] -= 2;
-                       if (ready[r] <= -30000)
-                           if (index <= 3)
-                               hit[r]++;
-                           else
-                               hit[r] += 2;
-                       if (ptr1 -> captured > -1)
-                           if (index <= 1)
-                               hit[r]--;
-                           else
-                               hit[r] -= 2;
-                       hit[r] += AMMO[index][load[r] - 1];
-                       if (((temp = ptr -> class) >= 5 || temp == 1) && windspeed == 5)
-                           hit[r]--;
-                       if (windspeed == 6 && temp == 4)
-                           hit[r] -= 2;
-                       if (windspeed == 6 && temp <= 3)
-                           hit[r]--;
-                       if (hit[r] >= 0) {
-                           roll[r] = die();
-                           if (load[r] == GRAPE)
-                               chits = hit[r];
-                           else {
-                               hit[r] = hit[r] > 10 ? 10 : hit[r];
-                               chits = shootat[r] ? RigTable[hit[r]][roll[r]-1].C : HullTable[hit[r]][roll[r]-1].C;
-                               rhits = shootat[r] ? RigTable[hit[r]][roll[r]-1].R : HullTable[hit[r]][roll[r]-1].R;
-/*                             if (devestate && power) {
-                               hhits = 10;
-                               devestate = 0;
-                               }
-                           else */
-                               hhits = shootat[r] ? RigTable[hit[r]][roll[r]-1].H : HullTable[hit[r]][roll[r]-1].H;
-                               ghits = shootat[r] ? RigTable[hit[r]][roll[r]-1].G : HullTable[hit[r]][roll[r]-1].G;
-                               if (scene[game].ship[closest[r]].file -> FS)
-                                   rhits *= 2;
-                               if (load[r] == CHAIN) {
-                                   ghits = 0;
-                                   hhits = 0;
-                               }
-                           }
-/*                         if (power)
-                               table(shootat[r], load[r], 10, closest[r], player, 6);
-                           else */
-                               table(shootat[r], load[r], hit[r], closest[r], player, roll[r]);
-                       }
-                       scroll = 18;
-                       move(scroll++, 0);
-                       clearline();
-                       printw("Damage inflicted on the %s:", scene[game].ship[closest[r]].shipname);
-                       move(scroll++, 0);
-                       clearline();
-                       printw("\t%d HULL, %d GUNS, %d CREW, %d RIGGING", hhits, ghits, chits, rhits);
-                       load[r] = 0;
-                       if (!r) {
-                           ptr1 -> loadL = 0;
-                           ptr1 -> readyL = 0;
-                       } else {
-                           ptr1 -> loadR = 0;
-                           ptr1 -> readyR = 0;
-                       }
-                   }
-               } else {
-                   load[r] = 0;
-                   Signal("Unable to fire %s broadside", -1, (r?"right":"left"));
+       } else {
+               switch (conditions) {
+               case LEAVE_QUIT:
+                       break;
+               case LEAVE_DRIVER:
+                       printf("The driver died.\n");
+                       break;
+               case LEAVE_FORK:
+                       perror("fork");
+                       break;
+               case LEAVE_SYNC:
+                       printf("Synchronization error\n.");
+                       break;
+               default:
+                       printf("A funny thing happened (%d).\n",
+                               conditions);
                }
                }
-           } else
-               Signal("Unable to fire %s broadside", -1, (r?"right":"left"));
        }
        }
-}
 
 
-leave(conditions)
-int conditions;
-{
-    FILE *fp;
-    int people;
-    float net;
-    char * capn;
-    char message[60];
-    register int n;
-    struct logs log[10], temp;
-
-    signal(SIGHUP, SIG_IGN);
-    signal(SIGINT, SIG_IGN);
-    signal(SIGQUIT, SIG_IGN);
-    signal(SIGALRM, SIG_IGN);
-
-    if (conditions != -1) {
-       capn = scene[game].ship[player].file -> captain;
-       sprintf(message,"Captain %s relinquishing.",capn);
-       Write(FILES + player, 1, 164, message);
-       
-       if (fp = fopen(LOGFILE, "r+")) {
-           net = (float) (scene[game].ship[player].file -> points) / specs[scene[game].ship[player].shipnum].pts;
-           people = getw(fp);
-           n = fread(log, sizeof(struct logs), 10, fp);
-           for (; n < 10; n++)
-               log[n].fname[0] = log[n].uid = log[n].fshipnum = log[n].fgamenum = log[n].netpoints = 0;
-           rewind(fp);
-           if(people < 0)
-               putw(1, fp);
-           else
-               putw(people+1, fp);
-           for (n=0; n < 10; n++)
-               if (net > (float) log[n].netpoints / specs[scene[log[n].fgamenum].ship[log[n].fshipnum].shipnum].pts) {
-                   fwrite(log, sizeof(struct logs), n, fp);
-                   strcpy(temp.fname, capn);
-                   temp.uid = getuid();
-                   temp.fshipnum = player;
-                   temp.fgamenum = game;
-                   temp.netpoints = scene[game].ship[player].file -> points;
-                   fwrite(&temp, sizeof(struct logs), 1, fp);
-                   fwrite(log + n, sizeof(struct logs), 9 - n, fp);
-                   break;
+       if (ms != 0) {
+               log(ms);
+               if (conditions != LEAVE_SYNC) {
+                       makesignal(ms, "Captain %s relinquishing.",
+                               (struct ship *)0, mf->captain);
+                       Write(W_END, ms, 0, 0, 0, 0, 0);
+                       (void) Sync();
                }
                }
-               fclose(fp);
-           }
-           Write(FILES + player, 1, 0, " ");
-           Write(SCENARIO, 0, 8, scene[game].people - 1);
-           screen();
-           fclose(syncfile);
-           Signal("It looks like you've had it!", -1, 0);
-           if (conditions == 1)
-               Signal("Your ship was captured.", -1, 0);
-           if (conditions == 2)
-               Signal("No more enemies.", -1, 0);
-           if (conditions == 3)
-               Signal("Hurricane!  All ships destroyed.", -1, 0);
-           move(0, LINES-1);
-           scroll = LINES;
-           clearline();
-           refresh();
        }
        }
-    nocrmode();
-    echo();
-    endwin();
-    exit(0);
+       sync_close(!hasdriver);
+       cleanupscreen();
+       exit(0);
 }
 
 }
 
+void
 choke()
 {
 choke()
 {
-    leave(0);
-}
-
-grapungrap()
-{
-    register int n, k, l, number, captured;
-    int buf;
-
-    for (n=0; n < scene[game].vessels ; n++) {
-       if (n != player && (range(player, n) <= 1 || grapple(player, n))) {
-           if ((captured = scene[game].ship[n].file -> captured) < 0)
-               captured = n;
-           Signal("Attempt to grapple or ungrapple %s (%c%c): ", n, 0);
-           while((buf = getch()) == EOF);
-               addch(buf);
-           if (buf == 'g') {
-               number = die() < 3;
-               if (!number && scene[game].ship[player].nationality == scene[game].ship[captured].nationality)
-                   number = 1;
-               if (number) {
-                   for (l=0; l < 10 && scene[game].ship[player].file -> grapples[l].turnfoul; l++);
-                       if (!scene[game].ship[player].file -> grapples[l].turnfoul) {
-                           Write(FILES + player, 0, 124 + l*4, turn);
-                           Write(FILES + player, 0, 124 + l*4 + 2, n);
-                       }
-                       for (l=0; l < 10 && scene[game].ship[n].file -> grapples[l].turnfoul; l++);
-                           if (!scene[game].ship[n].file -> grapples[l].turnfoul) {
-                               Write(FILES + n, 0, 124 + l*4, turn);
-                               Write(FILES + n, 0, 124 + l*4 + 2, player);
-                           }
-                   }
-                   if (number) {
-                       Signal("Attempt succeeds!", 0, 0);
-                       makesignal("grappled with %s (%c%c)", n, player);
-                   } else
-                       Signal("Attempt fails.", 0, 0);
-               }
-               if (buf == 'u'){ for (k=0; k < 10; k++) {
-                   if (scene[game].ship[player].file -> grapples[k].turnfoul && n == scene[game].ship[player].file -> grapples[k].toship) {
-                       if (die() < 3 || scene[game].ship[player].nationality == scene[game].ship[captured].nationality) {
-                           cleangrapple(player, n, k);
-                               Signal("Attempt succeeds!", 0, 0);
-                               makesignal("ungrappling with %s (%c%c)", n, player);
-                           } else
-                               Signal("Attempt fails.", 0, 0);
-                       }
-                   }
-               }
-           }
-       }
-}
-
-unfoulplayer()
-{
-    register int n, toship;
-    int buf;
-
-    for (n=0; n < 10; n++) {
-       if (scene[game].ship[player].file -> fouls[n].turnfoul) {
-           Signal("Attempt to unfoul with the %s (%c%c)? ", (toship = scene[game].ship[player].file -> fouls[n].toship), 0);
-           while((buf = getch()) == EOF);
-               addch(buf);
-           if (buf == 'y' && die() < 3) {
-               cleanfoul(player, toship, n);
-               Signal("Attempt succeeds!", 0, 0);
-               makesignal("unfouling %s (%c%c)", toship, player);
-           } else if (buf == 'y')
-               Signal("Attempt fails.", 0, 0);
-       }
-    }
-}
-
-initialize(nodriver, randomize)
-char randomize, nodriver;
-{
-    char comm[80], num[5], file[25], capn;
-    char message[60];
-    int load = ROUND, ready = -30000;
-    int people = 0;
-    int pid, omask;
-    register int n;
-    register int k;
-    struct stat Stat;
-    char *nameptr;
-
-    srand(pid = getpid());
-    initscr();
-    view = newwin(ROWSINVIEW, COLSINVIEW, 2, 1);
-    slot = newwin(ROWSINVIEW, 3, 2, 1+COLSINVIEW);
-
-    if (game < 0) {
-       puts("Choose a scenario:\n");
-       puts("\n\tNUMBER\tSHIPS\tIN PLAY\tTITLE");
-       for (n=0; n < NUMOFSCENES; n++) {
-           sprintf(file, "/tmp/.%d", n);
-           printf("\t%d):\t%d", n, scene[n].vessels);
-           if (stat(file, &Stat) >= 0)
-               printf("\tYES");
-           else
-               printf("\tno");
-           printf("\t%s\n", scene[n].name);
-       }
-reprint:
-       printf("\nScenario number? ");
-       scanf("%d", &game);
-       while (getchar() != '\n');
-    }
-    if (game < 0 || game >= NUMOFSCENES) {
-       puts("Very funny.");
-       endwin();
-       exit(1);
-    }
-    sprintf(file, "/tmp/.%d", game);
-    if (stat(file, &Stat) < 0 ) {
-#ifdef SETUID
-       omask = umask(077);
-#else
-       omask = umask(011);
-#endif
-       syncfile = fopen(file, "w+");
-       umask(omask);
-    } else {
-       syncfile = fopen(file, "r+");
-       people = 1;
-    }
-    lastsync = 0;
-    for (n=0; n < scene[game].vessels; n++) {
-       nation[scene[game].ship[n].nationality + 1] = n + 1;
-       if ((scene[game].ship[n].file =  (struct File *) calloc(1, sizeof(struct File))) == NULL) {
-           puts("OUT OF MEMORY");
-           endwin();
-           exit(0);
-       }
-       scene[game].ship[n].file -> captured = -1;
-    }
-    if (!nation[2])
-       nation[2] = nation[1];
-    if (!nation[3])
-       nation[3] = nation[2];
-    if (people > 0) {
-       puts("Synchronizing with the other players...");
-       fflush(stdout);
-       sync();
-       capn = 1;
-       for (n=0; n < scene[game].vessels && capn; n++) {
-           capn = scene[game].ship[n].file -> captain[0];
-           if (scene[game].ship[n].file -> struck || scene[game].ship[n].file -> captured > -1)
-               capn = 1;
-       }
-       if (!capn)
-           player = n-1;
-       else {
-           puts("All ships taken in that scenario.");
-           for (n=0; n < scene[game].vessels; n++)
-               free(scene[game].ship[n].file);
-           people = 0;
-           for (n=0; n < 5; n++)
-               nation[n] = 0;
-           goto reprint;
-       }
-    } else
-       player = 0;
-    while (randomize) {
-       static char *color[] =
-           { "(American)", "(British)", "(Spanish)", "(French)" };
-
-       puts(scene[game].name);
-       putchar('\n');
-       for (n=0; n < scene[game].vessels; n++) {
-           printf("  %2d:  %-10s %-15s  (%-2d pts)   ", n,
-             color[scene[game].ship[n].nationality],
-             scene[game].ship[n].shipname,
-             specs[scene[game].ship[n].shipnum].pts);
-           if(scene[game].ship[n].file -> captain[0])
-               puts(scene[game].ship[n].file -> captain);
-           else if (scene[game].ship[n].file -> struck)
-               puts("(struck)");
-           else if(scene[game].ship[n].file -> captured > -1)
-               puts("(captured)");
-           else
-               puts("(available)");
-       }
-       putchar('\n');
-       printf("Which ship do you want (0-%d)? ",scene[game].vessels-1);
-       if (scanf("%d",&player) != 1 || player < 0 || player >= scene[game].vessels) {
-           while (getchar() != '\n');
-               puts("Say what?");
-       } else {
-           while (getchar() != '\n');
-           sync();
-           if (scene[game].ship[player].file -> captain[0] || scene[game].ship[player].file -> struck || scene[game].ship[player].file -> captured > -1)
-               puts("Sorry, that ship is taken.");
-           else
-               break;
-       }
-    }
-    signal(2, choke);
-    signal(1, choke);
-    Write(FILES + player, 1, 0, "begin");  /* he now exits */
-    if(people)
-       Write(SCENARIO, 0, 8, scene[game].people + 1);
-    sync();
-    printf("Your ship is the %s, a %s (%s crew).\n", scene[game].ship[player].shipname, info(player, message), quality(player));
-    if ((nameptr = (char *) getenv("NAME")) && *nameptr)
-       strcpy(comm,nameptr);
-    else {
-       fputs("Your name, Captain? ", stdout);
-       gets(comm);
-       if (!*comm) strcpy(comm, "no name");
-    }
-    comm[19] = '\0';
-    for (k=0; k < 2; k++) {
-       printf("\nInitial broadside %s (grape, chain, round, double): ", (k ? "right" : "left"));
-       scanf("%s", file);
-       switch(*file) {
-           case 'g':
-               load = GRAPE;
-               break;
-           case 'c':
-               load = CHAIN;
-               break;
-           case 'r':
-               load = ROUND;
-               break;
-           case 'd':
-               load = DOUBLE;
-               break;
-       }
-       if (k) {
-           scene[game].ship[player].file -> loadR = load;
-           scene[game].ship[player].file -> readyR = ready;
-       } else {
-           scene[game].ship[player].file -> loadL = load;
-           scene[game].ship[player].file -> readyL = ready;
-       }
-    }
-    Write(FILES + player, 1, 0, comm);
-    if (!people && !nodriver) {
-       sprintf(num, "%d", game);
-       if (!fork()) {
-           execl(DRIVER, DRIVERNAME, num, 0);
-           perror(DRIVER);
-           kill(pid,9);
-           exit(1);
-       }
-    }
-    board();
-    sprintf(message, "Captain %s assuming command",comm);
-    Write(FILES + player, 1, 164, message);
-    windspeed = scene[game].windspeed;
-    winddir = scene[game].winddir;
-    turn = scene[game].turn;
-    iplotships();      /* new turn */
+       leave(LEAVE_QUIT);
 }
 
 }
 
-/* 
- * Returns the NUMBER of the closest ship
- */
-closestenemy(fromship, side, anyship) 
-int fromship; 
-char side, anyship;
+void
+child()
 {
 {
-    register int n, olddist = 30000, ident, captured;
-    register int dist, eclosest = 30000;
-
-    if ((ident = scene[game].ship[fromship].file -> captured) < 0)
-       ident = fromship;
-    for (n=0; n < scene[game].vessels; n++) {
-       if ((captured = scene[game].ship[n].file -> captured) < 0)
-           captured = n;
-       if (n != fromship && pos[n].dir && (scene[game].ship[ident].nationality != scene[game].ship[captured].nationality || anyship)) {
-           if (!side || gunsbear(fromship, n) == side) {
-               dist = range(fromship, n);
-               if (dist < olddist){
-                   eclosest = n;
-                   olddist = dist;
-               }
-           }
-       }
-    }
-    if (!side && olddist == 30000)
-       leave(2);
-    return(eclosest);
-}
-
-finalexit()
-{
-    endwin();
-    nocrmode();
-    echo();
-    exit(1);
-}
-
-main(argc, argv)
-int argc;
-char ** argv;
-{
-    register int crew, aheadfirst, ta, ma, n;
-    char message[60], ch;
-    int uid;
-    char nodrive = 0, randomize = 0, *badstring();
-
-    signal(SIGINT, finalexit);
-    signal(SIGQUIT, finalexit);
-    signal(SIGHUP, finalexit);
-    
-    if (timetoplay() != 0 && gooduid(uid) != 0)
-       {
-       printf("Sorry Captain, but since you are not an Admiral and this is\n");
-       printf("a weekday between %s, you are not permitted to\n",badstring());
-       printf("sail.  Come back again some time when the harbor is open.\n");
-       exit(1);
-       }
-
-    while (*++argv && **argv == '-')
-       switch (*++*argv)
-           {
-           case 'd':
-               nodrive = 1;
-               break;
-           case 'x':
-               randomize = 1;
-               break;
-           default:
-               printf("Unknown flag '%s'\n",*argv);
-               break;
-           }
-    if (*argv)
-       game = atoi(*argv);
-    else
-       game = -1;
-    initialize(nodrive, randomize);
-    noecho();
-    crmode();
-    Signal("Aye aye, Sir", 0, 0);
-    for(;;)
-       {
-       move(scroll++,0);
-       clearline();
-       addch('~');
-       move(--scroll,0);
-       refresh();
-       ch = getch();   
-       switch(ch)
-           {
-           case 'm':
-               crew = specs[scene[game].ship[player].shipnum].crew3;
-               /* for (n=0; n < 3; n++)
-                   {
-                   if (ptr -> OBP[n].turnsent && ptr -> OBP[n].mensent % 10)
-                   crew = 0;
-                   }
-               for (n=0; n < 3; n++)
-                   {
-                   if (ptr -> DBP[n].turnsent && ptr -> DBP[n].mensent % 10)
-                   crew = 0;
-                   } */
-               if (crew && !grappled(player) && !fouled(player) && windspeed)
-                   {
-                   ta = maxturns(player);
-                   aheadfirst = ta & 0100000;
-                   ma = maxmove(player, pos[player].dir, 0);
-                   ta &= 077777;
-                   acceptmove(ma, ta, aheadfirst);
-                   }
-               else
-                   Signal("Unable to move", 0, 0);
-               break;
-           case 's':
-               acceptsignal();
-               break;
-           case 'g':
-               grapungrap();
-               break;
-           case 'u':
-               unfoulplayer();
-               break;
-           case 'v':
-               version();
-               break;
-           case 'b':
-               boarding();
-               break;
-/*         case '[':
-               devestate = 1;
-               acceptcombat();
-               break; */
-           case 'f':
-               acceptcombat();
-               break;
-           case 'l':
-               loadplayer();
-               break;
-           case 'c':
-               changesail();
-               break;
-           case 'r':
-               repair();
-               break;
-           case 'B':
-               Signal("'Hands to stations!'", 0, 0);
-               unboard(player, player, 1);     /* cancel DBP's */
-               unboard(player, player, 0);     /* cancel offense */
-               break;
-           case '\f':
-               signal(SIGALRM, SIG_IGN);
-               viewrow = pos[player].row - ROWSINVIEW / 2;
-               viewcol = pos[player].col - COLSINVIEW / 2;
-               board();
-               plotships(); /* don't create new turn */
-               break;
-           case 'L':
-               scene[game].ship[player].file -> loadL = 0;
-               scene[game].ship[player].file -> loadR = 0;
-               scene[game].ship[player].file -> readyL = 0;
-               scene[game].ship[player].file -> readyR = 0;
-               Signal("Broadsides unloaded", 0, 0);
-               break;
-           case 'q':
-               Signal("Type 'Q' to quit", 0, 0);
-               break;
-           case 'Q':
-               leave(0);
-               break;
-           case 'I':
-               for (n = 0; n < scene[game].vessels; n++)
-                   eyeball(player, n);
-               break;
-           case 'i':
-               n = closestenemy(player, 0, 1);
-               eyeball(player, n);
-               break;
-           }
-       signalflags();
-       lost();
-       }
-    }
-
-char *saywhat(n)
-int n;
-{
-       if(scene[game].ship[n].file -> captain[0])
-               return(scene[game].ship[n].file -> captain);
-       else if (scene[game].ship[n].file -> struck)
-               return("(struck)");
-       else if(scene[game].ship[n].file -> captured > -1)
-               return("(captured)");
-       else
-               return("(computer)");
-}
-
-eyeball(player, n)
-int player, n;
-{
-    char message[80];
-    register i;
-
-    if (scene[game].ship[n].shipdir){
-       sprintf(message, "%d, %s", range(player, n), saywhat(n));
-       Signal("Sail ho! (range %s)", -1, message);
-       switch(scene[game].ship[n].nationality)
-           {
-           case 0:
-               strcpy(message, "American ");
-               break;
-           case 1:
-               strcpy(message, "British ");
-               break;
-           case 2:
-               strcpy(message, "Spanish ");
-               break;
-           case 3:
-               strcpy(message, "French ");
-               break;
-           default:
-               strcpy(message, "Gremlin ");
-               break;
-           }
-       switch(specs[scene[game].ship[n].shipnum].class)
-           {
-           case 1:
-           case 2:
-               strcat(message, "Ship of the Line ");
-               break;
-           case 3:
-           case 4:
-               strcat(message, "Frigate ");
-               break;
-           case 5:
-           case 6:
-               strcat(message, "Sloop ");
-               break;
-           }
-       switch(portside(player, n, 1) - pos[player].dir)
-           {
-           case -7:
-           case 1:
-               strcat(message, "off the starboard bow.");
-               break;
-           case -6:
-           case 2:
-               strcat(message, "off the starboard beam.");
-               break;
-           case -5:
-           case 3:
-               strcat(message, "off the starboard quarter.");
-               break;
-           case -4:
-           case 4:
-               strcat(message, "dead astern.");
-               break;
-           case -3:
-           case 5:
-               strcat(message, "off the port quarter.");
-               break;
-           case -2:
-           case 6:
-               strcat(message, "off the port beam.");
-               break;
-           case -1:
-           case 7:
-               strcat(message, "off the port bow.");
-               break;
-           case 0:
-               strcat(message, "dead ahead.");
-               break;
-           }
-       Signal(message, 0, 0);
-    }
+       union wait status;
+       int pid;
+
+       (void) signal(SIGCHLD, SIG_IGN);
+       do {
+               pid = wait3((int *)&status, WNOHANG, (struct rusage *)0);
+               if (pid < 0 || pid > 0 && !WIFSTOPPED(status))
+                       hasdriver = 0;
+       } while (pid > 0);
+       (void) signal(SIGCHLD, child);
 }
 }