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      1 /*	$NetBSD: autover.c,v 1.7 2009/05/24 22:55:03 dholland Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1980, 1993
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. Neither the name of the University nor the names of its contributors
     16  *    may be used to endorse or promote products derived from this software
     17  *    without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29  * SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 #ifndef lint
     34 #if 0
     35 static char sccsid[] = "@(#)autover.c	8.1 (Berkeley) 5/31/93";
     36 #else
     37 __RCSID("$NetBSD: autover.c,v 1.7 2009/05/24 22:55:03 dholland Exp $");
     38 #endif
     39 #endif /* not lint */
     40 
     41 #include <stdio.h>
     42 #include "trek.h"
     43 
     44 /*
     45 **  Automatic Override
     46 **
     47 **	If we should be so unlucky as to be caught in a quadrant
     48 **	with a supernova in it, this routine is called.  It is
     49 **	called from checkcond().
     50 **
     51 **	It sets you to a random warp (guaranteed to be over 6.0)
     52 **	and starts sending you off "somewhere" (whereever that is).
     53 **
     54 **	Please note that it is VERY important that you reset your
     55 **	warp speed after the automatic override is called.  The new
     56 **	warp factor does not stay in effect for just this routine.
     57 **
     58 **	This routine will never try to send you more than sqrt(2)
     59 **	quadrants, since that is all that is needed.
     60 */
     61 
     62 void
     63 autover(void)
     64 {
     65 	double			dist;
     66 	int		course;
     67 
     68 	printf("\07RED ALERT:  The %s is in a supernova quadrant\n",
     69 		Ship.shipname);
     70 	printf("***  Emergency override attempts to hurl %s to safety\n",
     71 		Ship.shipname);
     72 	/* let's get our ass out of here */
     73 	Ship.warp = 6.0 + 2.0 * franf();
     74 	Ship.warp2 = Ship.warp * Ship.warp;
     75 	Ship.warp3 = Ship.warp2 * Ship.warp;
     76 	dist = 0.75 * Ship.energy / (Ship.warp3 * (Ship.shldup + 1));
     77 	if (dist > 1.4142)
     78 		dist = 1.4142;
     79 	course = ranf(360);
     80 	Etc.nkling = -1;
     81 	Ship.cond = RED;
     82 	warp(-1, course, dist);
     83 	attack(0);
     84 }
     85