games/trek/destruct.c

   1 /*-
   2  * Copyright (c) 1980, 1993
   3  *      The Regents of the University of California.  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. Neither the name of the University nor the names of its contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  *
  29  * @(#)destruct.c       8.1 (Berkeley) 5/31/93
  30  * $FreeBSD: src/games/trek/destruct.c,v 1.4 1999/11/30 03:49:46 billf Exp $
  31  * $DragonFly: src/games/trek/destruct.c,v 1.3 2006/09/07 21:19:44 pavalos Exp $
  32  */
  33
  34 #include "getpar.h"
  35 #include "trek.h"
  36
  37 /*
  38 **  Self Destruct Sequence
  39 **
  40 **      The computer starts up the self destruct sequence.  Obviously,
  41 **      if the computer is out nothing can happen.  You get a countdown
  42 **      and a request for password.  This must match the password that
  43 **      you entered at the start of the game.
  44 **
  45 **      You get to destroy things when you blow up; hence, it is
  46 **      possible to win the game by destructing if you take the last
  47 **      Klingon with you.
  48 **
  49 **      By the way, the \032 in the message is a ^Z, which is because
  50 **      the terminal in my office is an ADM-3, which uses that char-
  51 **      acter to clear the screen.  I also stick in a \014 (form feed)
  52 **      because that clears some other screens.
  53 **
  54 **      Uses trace flag 41
  55 */
  56
  57 void
  58 destruct(int v __unused)
  59 {
  60         char            checkpass[15];
  61         int     i, j;
  62         double          zap;
  63
  64         if (damaged(COMPUTER)) {
  65                 out(COMPUTER);
  66                 return;
  67         }
  68         printf("\n\07 --- WORKING ---\07\n");
  69         sleep(3);
  70         /* output the count 10 9 8 7 6 */
  71         for (i = 10; i > 5; i--) {
  72                 for (j = 10;  j > i; j--)
  73                         printf("   ");
  74                 printf("%d\n", i);
  75                 sleep(1);
  76         }
  77         /* check for password on new line only */
  78         skiptonl(0);
  79         getstrpar("Enter password verification", checkpass, 14, 0);
  80         sleep(2);
  81         if (!sequal(checkpass, Game.passwd)) {
  82                 printf("Self destruct sequence aborted\n");
  83                 return;
  84         }
  85         printf("Password verified; self destruct sequence continues:\n");
  86         sleep(2);
  87         /* output count 5 4 3 2 1 0 */
  88         for (i = 5; i >= 0; i--) {
  89                 sleep(1);
  90                 for (j = 5; j > i; j--)
  91                         printf("   ");
  92                 printf("%d\n", i);
  93         }
  94         sleep(2);
  95         printf("\032\014***** %s destroyed *****\n", Ship.shipname);
  96         Game.killed = 1;
  97         /* let's see what we can blow up!!!! */
  98         zap = 20.0 * Ship.energy;
  99         Game.deaths += Ship.crew;
 100         for (i = 0; i < Etc.nkling; ) {
 101                 if (Etc.klingon[i].power * Etc.klingon[i].dist <= zap)
 102                         killk(Etc.klingon[i].x, Etc.klingon[i].y);
 103                 else
 104                         i++;
 105         }
 106         /* if we didn't kill the last Klingon (detected by killk), */
 107         /* then we lose.... */
 108         lose(L_DSTRCT);
 109 }