date and time created 88/07/22 16:08:01 by bostic

[unix-history] / usr / src / games / trek / capture.c

/*
* Copyright (c) 1980 Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that the above copyright notice and this paragraph are
* duplicated in all such forms and that any documentation,
* advertising materials, and other materials related to such
* distribution and use acknowledge that the software was developed
* by the University of California, Berkeley.  The name of the
* University may not be used to endorse or promote products derived
* from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/

#ifndef lint
static char sccsid[] = "@(#)capture.c   5.3 (Berkeley) %G%";
#endif /* not lint */

# include       "trek.h"

/*
**  Ask a Klingon To Surrender
**
**      (Fat chance)
**
**      The Subspace Radio is needed to ask a Klingon if he will kindly
**      surrender.  A random Klingon from the ones in the quadrant is
**      chosen.
**
**      The Klingon is requested to surrender.  The probability of this
**      is a function of that Klingon's remaining power, our power,
**      etc.
*/

capture()
{
       register int            i;
       register struct kling   *k;
       double                  x;
       extern struct kling     *selectklingon();

       /* check for not cloaked */
       if (Ship.cloaked)
       {
               printf("Ship-ship communications out when cloaked\n");
               return;
       }
       if (damaged(SSRADIO))
               return (out(SSRADIO));
       /* find out if there are any at all */
       if (Etc.nkling <= 0)
       {
               printf("Uhura: Getting no response, sir\n");
               return;
       }

       /* if there is more than one Klingon, find out which one */
       k = selectklingon();
       Move.free = 0;
       Move.time = 0.05;

       /* check out that Klingon */
       k->srndreq++;
       x = Param.klingpwr;
       x *= Ship.energy;
       x /= k->power * Etc.nkling;
       x *= Param.srndrprob;
       i = x;
#       ifdef xTRACE
       if (Trace)
               printf("Prob = %d (%.4f)\n", i, x);
#       endif
       if (i > ranf(100))
       {
               /* guess what, he surrendered!!! */
               printf("Klingon at %d,%d surrenders\n", k->x, k->y);
               i = ranf(Param.klingcrew);
               if ( i > 0 )
                       printf("%d klingons commit suicide rather than be taken captive\n", Param.klingcrew - i);
               if (i > Ship.brigfree)
                       i = Ship.brigfree;
               Ship.brigfree -= i;
               printf("%d captives taken\n", i);
               killk(k->x, k->y);
               return;
       }

       /* big surprise, he refuses to surrender */
       printf("Fat chance, captain\n");
       return;
}


/*
**  SELECT A KLINGON
**
**      Cruddy, just takes one at random.  Should ask the captain.
*/

struct kling    *selectklingon()
{
       register int            i;

       if (Etc.nkling < 2)
               i = 0;
       else
               i = ranf(Etc.nkling);
       return (&Etc.klingon[i]);
}