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autover.c revision 1.1 
      1 /*
      2  * Copyright (c) 1980 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[] = "@(#)autover.c	5.5 (Berkeley) 6/1/90";
     36 #endif /* not lint */
     37 
     38 # include	"trek.h"
     39 
     40 /*
     41 **  Automatic Override
     42 **
     43 **	If we should be so unlucky as to be caught in a quadrant
     44 **	with a supernova in it, this routine is called.  It is
     45 **	called from checkcond().
     46 **
     47 **	It sets you to a random warp (guaranteed to be over 6.0)
     48 **	and starts sending you off "somewhere" (whereever that is).
     49 **
     50 **	Please note that it is VERY important that you reset your
     51 **	warp speed after the automatic override is called.  The new
     52 **	warp factor does not stay in effect for just this routine.
     53 **
     54 **	This routine will never try to send you more than sqrt(2)
     55 **	quadrants, since that is all that is needed.
     56 */
     57 
     58 autover()
     59 {
     60 	double			dist;
     61 	register int		course;
     62 
     63 	printf("\07RED ALERT:  The %s is in a supernova quadrant\n", Ship.shipname);
     64 	printf("***  Emergency override attempts to hurl %s to safety\n", Ship.shipname);
     65 	/* let's get our ass out of here */
     66 	Ship.warp = 6.0 + 2.0 * franf();
     67 	Ship.warp2 = Ship.warp * Ship.warp;
     68 	Ship.warp3 = Ship.warp2 * Ship.warp;
     69 	dist = 0.75 * Ship.energy / (Ship.warp3 * (Ship.shldup + 1));
     70 	if (dist > 1.4142)
     71 		dist = 1.4142;
     72 	course = ranf(360);
     73 	Etc.nkling = -1;
     74 	Ship.cond = RED;
     75 	warp(-1, course, dist);
     76 	attack(0);
     77 }
     78