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annotate rogue5/rooms.c @ 96:9fb343307b6b

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Fix some 'test' failures when running 'make install'. When shell variables are unexpectedly empty, 'test' gets the wrong number of arguments and becomes unhappy. Logical AND should not be done with 'test EXPR1 -a EXPR2' in such cases, because 'test' logic does not short-circuit. Replace with 'test EXPR1 && test EXPR2'. Shell logic does short-circuit, and if the first test invocation fails, the second will never occur, and will never encounter missing arguments.
author John "Elwin" Edwards
date Tue, 27 Aug 2013 22:54:28 -0700
parents f502bf60e6e4
children
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33
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1 /*
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2 * Create the layout for the new level
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3 *
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4 * @(#)rooms.c 4.45 (Berkeley) 02/05/99
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5 *
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6 * Rogue: Exploring the Dungeons of Doom
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7 * Copyright (C) 1980-1983, 1985, 1999 Michael Toy, Ken Arnold and Glenn Wichman
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8 * All rights reserved.
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9 *
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10 * See the file LICENSE.TXT for full copyright and licensing information.
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11 */
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12
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13 #include <ctype.h>
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14 #include <curses.h>
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15 #include "rogue.h"
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16
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17 typedef struct spot { /* position matrix for maze positions */
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18 int nexits;
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19 coord exits[4];
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20 int used;
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21 } SPOT;
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22
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23 #define GOLDGRP 1
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24
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25 /*
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26 * do_rooms:
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27 * Create rooms and corridors with a connectivity graph
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28 */
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29
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30 void
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31 do_rooms(void)
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32 {
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33 int i;
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34 struct room *rp;
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35 THING *tp;
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36 int left_out;
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37 coord top;
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38 coord bsze; /* maximum room size */
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39 coord mp;
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40
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41 bsze.x = NUMCOLS / 3;
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42 bsze.y = NUMLINES / 3;
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43 /*
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44 * Clear things for a new level
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45 */
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46 for (rp = rooms; rp < &rooms[MAXROOMS]; rp++)
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47 {
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48 rp->r_goldval = 0;
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49 rp->r_nexits = 0;
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50 rp->r_flags = 0;
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51 }
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52 /*
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53 * Put the gone rooms, if any, on the level
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54 */
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55 left_out = rnd(4);
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56 for (i = 0; i < left_out; i++)
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57 rooms[rnd_room()].r_flags |= ISGONE;
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58 /*
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59 * dig and populate all the rooms on the level
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60 */
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61 for (i = 0, rp = rooms; i < MAXROOMS; rp++, i++)
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62 {
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63 /*
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64 * Find upper left corner of box that this room goes in
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65 */
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66 top.x = (i % 3) * bsze.x + 1;
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67 top.y = (i / 3) * bsze.y;
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68 if (rp->r_flags & ISGONE)
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69 {
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70 /*
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71 * Place a gone room. Make certain that there is a blank line
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72 * for passage drawing.
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73 */
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74 do
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75 {
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76 rp->r_pos.x = top.x + rnd(bsze.x - 2) + 1;
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77 rp->r_pos.y = top.y + rnd(bsze.y - 2) + 1;
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78 rp->r_max.x = -NUMCOLS;
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79 rp->r_max.y = -NUMLINES;
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80 } until (rp->r_pos.y > 0 && rp->r_pos.y < NUMLINES-1);
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81 continue;
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82 }
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83 /*
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84 * set room type
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85 */
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86 if (rnd(10) < level - 1)
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87 {
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88 rp->r_flags |= ISDARK; /* dark room */
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89 if (rnd(15) == 0)
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90 rp->r_flags = ISMAZE; /* maze room */
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91 }
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92 /*
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93 * Find a place and size for a random room
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94 */
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95 if (rp->r_flags & ISMAZE)
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96 {
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97 rp->r_max.x = bsze.x - 1;
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98 rp->r_max.y = bsze.y - 1;
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99 if ((rp->r_pos.x = top.x) == 1)
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100 rp->r_pos.x = 0;
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101 if ((rp->r_pos.y = top.y) == 0)
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102 {
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103 rp->r_pos.y++;
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104 rp->r_max.y--;
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105 }
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106 }
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107 else
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