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annotate arogue5/passages.c @ 244:ded75a57405c

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Rogue V4, V5: fix messages when viewing the identified items. The functions for displaying the list of identified items begin by prompting for the category of item, using msg(). Rogue V4 left this prompt on the screen after displaying the discovery list. Rogue V5 erased the message window even if the process of printing the list created another message which the player had not read. Messages are now cleared in endline(), which is capable of checking whether clearing should be done.
author John "Elwin" Edwards
date Sun, 24 Apr 2016 13:33:17 -0400
parents 56e748983fa8
children e52a8a7ad4c5
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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 }