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      1 /*	$NetBSD: initquad.c,v 1.7 2009/05/24 21:44:56 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[] = "@(#)initquad.c	8.1 (Berkeley) 5/31/93";
     36 #else
     37 __RCSID("$NetBSD: initquad.c,v 1.7 2009/05/24 21:44:56 dholland Exp $");
     38 #endif
     39 #endif /* not lint */
     40 
     41 #include <stdio.h>
     42 #include "trek.h"
     43 
     44 /*
     45 **  Paramize Quadrant Upon Entering
     46 **
     47 **	A quadrant is initialized from the information held in the
     48 **	Quad matrix.  Basically, everything is just initialized
     49 **	randomly, except for the starship, which goes into a fixed
     50 **	sector.
     51 **
     52 **	If there are Klingons in the quadrant, the captain is informed
     53 **	that the condition is RED, and he is given a chance to put
     54 **	his shields up if the computer is working.
     55 **
     56 **	The flag `f' is set to disable the check for condition red.
     57 **	This mode is used in situations where you know you are going
     58 **	to be docked, i.e., abandon() and help().
     59 */
     60 
     61 void
     62 initquad(int f)
     63 {
     64 	int		i, j;
     65 	int		rx, ry;
     66 	int		nbases, nstars;
     67 	struct quad	*q;
     68 	int		nholes;
     69 
     70 	q = &Quad[Ship.quadx][Ship.quady];
     71 
     72 	/* ignored supernova'ed quadrants (this is checked again later anyway */
     73 	if (q->stars < 0)
     74 		return;
     75 	Etc.nkling = q->klings;
     76 	nbases = q->bases;
     77 	nstars = q->stars;
     78 	nholes = q->holes;
     79 
     80 	/* have we blundered into a battle zone w/ shields down? */
     81 	if (Etc.nkling > 0 && !f) {
     82 		printf("Condition RED\n");
     83 		Ship.cond = RED;
     84 		if (!damaged(COMPUTER))
     85 			shield(1);
     86 	}
     87 
     88 	/* clear out the quadrant */
     89 	for (i = 0; i < NSECTS; i++)
     90 		for (j = 0; j < NSECTS; j++)
     91 			Sect[i][j] = EMPTY;
     92 
     93 	/* initialize Enterprise */
     94 	Sect[Ship.sectx][Ship.secty] = Ship.ship;
     95 
     96 	/* initialize Klingons */
     97 	for (i = 0; i < Etc.nkling; i++) {
     98 		sector(&rx, &ry);
     99 		Sect[rx][ry] = KLINGON;
    100 		Etc.klingon[i].x = rx;
    101 		Etc.klingon[i].y = ry;
    102 		Etc.klingon[i].power = Param.klingpwr;
    103 		Etc.klingon[i].srndreq = 0;
    104 	}
    105 	compkldist(1);
    106 
    107 	/* initialize star base */
    108 	if (nbases > 0) {
    109 		sector(&rx, &ry);
    110 		Sect[rx][ry] = BASE;
    111 		Etc.starbase.x = rx;
    112 		Etc.starbase.y = ry;
    113 	}
    114 
    115 	/* initialize inhabited starsystem */
    116 	if (q->qsystemname != 0) {
    117 		sector(&rx, &ry);
    118 		Sect[rx][ry] = INHABIT;
    119 		nstars -= 1;
    120 	}
    121 
    122 	/* initialize black holes */
    123 	for (i = 0; i < nholes; i++) {
    124 		sector(&rx, &ry);
    125 		Sect[rx][ry] = HOLE;
    126 	}
    127 
    128 	/* initialize stars */
    129 	for (i = 0; i < nstars; i++) {
    130 		sector(&rx, &ry);
    131 		Sect[rx][ry] = STAR;
    132 	}
    133 	Move.newquad = 1;
    134 }
    135 
    136 
    137 void
    138 sector(int *x, int *y)
    139 {
    140 	int	i, j;
    141 
    142 	do {
    143 		i = ranf(NSECTS);
    144 		j = ranf(NSECTS);
    145 	} while (Sect[i][j] != EMPTY);
    146 	*x = i;
    147 	*y = j;
    148 	return;
    149 }
    150