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annotate arogue5/passages.c @ 315:ad2570b5b21f

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Advanced Rogue 5, 7: fix some trading post messages. When attempting to buy an unaffordable object, messages were often of the form "You can't afford that a scroll of hold monster !", because the object description (stored in curpurch) was the same text used in inventory displays. This has been worked around by inspecting the contents of curpurch and using different message templates.
author John "Elwin" Edwards
date Sun, 24 Oct 2021 20:26:21 -0400
parents e52a8a7ad4c5
children
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1 /*
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2 * Draw the connecting passages
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3 *
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4 * @(#)passages.c 3.4 (Berkeley) 6/15/81
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5 *
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6 * Advanced Rogue
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7 * Copyright (C) 1984, 1985 Michael Morgan, Ken Dalka and AT&T
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8 * All rights reserved.
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9 *
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10 * Based on "Rogue: Exploring the Dungeons of Doom"
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11 * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
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12 * All rights reserved.
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13 *
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14 * See the file LICENSE.TXT for full copyright and licensing information.
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15 */
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16
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17 #include <stdlib.h>
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18 #include "curses.h"
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19 #include "rogue.h"
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20
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21 void conn(int r1, int r2);
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22 void door(struct room *rm, coord *cp);
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23
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24 /*
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25 * do_passages:
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26 * Draw all the passages on a level.
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27 */
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28
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29 void
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30 do_passages(void)
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31 {
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32 register struct rdes *r1, *r2 = NULL;
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33 register int i, j;
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34 register int roomcount;
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35 static struct rdes
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36 {
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37 bool conn[MAXROOMS]; /* possible to connect to room i? */
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38 bool isconn[MAXROOMS]; /* connection been made to room i? */
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39 bool ingraph; /* this room in graph already? */
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40 } rdes[MAXROOMS] = {
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41 { { 0, 1, 0, 1, 0, 0, 0, 0, 0 }, { 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 },
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42 { { 1, 0, 1, 0, 1, 0, 0, 0, 0 }, { 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 },
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43 { { 0, 1, 0, 0, 0, 1, 0, 0, 0 }, { 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 },
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44 { { 1, 0, 0, 0, 1, 0, 1, 0, 0 }, { 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 },
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45 { { 0, 1, 0, 1, 0, 1, 0, 1, 0 }, { 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 },
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46 { { 0, 0, 1, 0, 1, 0, 0, 0, 1 }, { 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 },
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47 { { 0, 0, 0, 1, 0, 0, 0, 1, 0 }, { 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 },
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48 { { 0, 0, 0, 0, 1, 0, 1, 0, 1 }, { 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 },
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49 { { 0, 0, 0, 0, 0, 1, 0, 1, 0 }, { 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 },
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50 };
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51
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52 /*
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53 * reinitialize room graph description
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54 */
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55 for (r1 = rdes; r1 <= &rdes[MAXROOMS-1]; r1++)
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56 {
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57 for (j = 0; j < MAXROOMS; j++)
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58 r1->isconn[j] = FALSE;
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59 r1->ingraph = FALSE;
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60 }
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61
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62 /*
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63 * starting with one room, connect it to a random adjacent room and
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64 * then pick a new room to start with.
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65 */
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66 roomcount = 1;
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67 r1 = &rdes[rnd(MAXROOMS)];
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68 r1->ingraph = TRUE;
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69 do
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70 {
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71 /*
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72 * find a room to connect with
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73 */
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74 j = 0;
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75 for (i = 0; i < MAXROOMS; i++)
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76 if (r1->conn[i] && !rdes[i].ingraph && rnd(++j) == 0)
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77 r2 = &rdes[i];
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78 /*
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79 * if no adjacent rooms are outside the graph, pick a new room
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80 * to look from
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81 */
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82 if (j == 0)
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83 {
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84 do
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85 r1 = &rdes[rnd(MAXROOMS)];
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86 until (r1->ingraph);
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87 }
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88 /*
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89 * otherwise, connect new room to the graph, and draw a tunnel
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90 * to it
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91 */
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92 else
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93 {
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94 r2->ingraph = TRUE;
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95 i = (int)(r1 - rdes);
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96 j = (int)(r2 - rdes);
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97 conn(i, j);
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98 r1->isconn[j] = TRUE;
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99 r2->isconn[i] = TRUE;
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100 roomcount++;
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101 }
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