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annotate arogue7/passages.c @ 215:1b73a8641b37

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rogue4: fix most GCC5 warnings. Converting all function definitions to ANSI style accounts for most of the change. This has exposed other problems, such as daemons not actually being their stated type, that will require more careful solutions.
author John "Elwin" Edwards
date Wed, 27 Jan 2016 19:41:05 -0500
parents 1cd604c827a3
children f9ef86cf22b2
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 * passages.c - Draw the connecting passages
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3 *
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4 * Advanced Rogue
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5 * Copyright (C) 1984, 1985, 1986 Michael Morgan, Ken Dalka and AT&T
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6 * All rights reserved.
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7 *
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8 * Based on "Rogue: Exploring the Dungeons of Doom"
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9 * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
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10 * All rights reserved.
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11 *
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12 * See the file LICENSE.TXT for full copyright and licensing information.
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13 */
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14
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15 /*
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16 * Draw the connecting passages
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17 *
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18 * @(#)passages.c 3.4 (Berkeley) 6/15/81
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19 */
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20
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21 #include "curses.h"
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22 #include "rogue.h"
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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 do_passages()
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30 {
200
1cd604c827a3 Advanced Rogue 7: initialize multiple variables.
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31 register struct rdes *r1, *r2 = NULL;
125
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32 register int i, j;
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33 register int roomcount;
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34 static struct rdes
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35 {
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36 bool conn[MAXROOMS]; /* possible to connect to room i? */
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37 bool isconn[MAXROOMS]; /* connection been made to room i? */
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38 bool ingraph; /* this room in graph already? */
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39 } rdes[MAXROOMS] = {
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40 { { 0, 1, 0, 1, 0, 0, 0, 0, 0 }, { 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 },
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41 { { 1, 0, 1, 0, 1, 0, 0, 0, 0 }, { 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 },
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42 { { 0, 1, 0, 0, 0, 1, 0, 0, 0 }, { 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 },
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43 { { 1, 0, 0, 0, 1, 0, 1, 0, 0 }, { 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 },
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44 { { 0, 1, 0, 1, 0, 1, 0, 1, 0 }, { 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 },
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45 { { 0, 0, 1, 0, 1, 0, 0, 0, 1 }, { 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 },
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46 { { 0, 0, 0, 1, 0, 0, 0, 1, 0 }, { 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 },
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47 { { 0, 0, 0, 0, 1, 0, 1, 0, 1 }, { 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 },
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48 { { 0, 0, 0, 0, 0, 1, 0, 1, 0 }, { 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 },
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49 };
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50
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51 /*
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52 * reinitialize room graph description
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53 */
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54 for (r1 = rdes; r1 <= &rdes[MAXROOMS-1]; r1++)
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55 {
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56 for (j = 0; j < MAXROOMS; j++)
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57 r1->isconn[j] = FALSE;
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58 r1->ingraph = FALSE;
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59 }
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60
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61 /*
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62 * starting with one room, connect it to a random adjacent room and
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63 * then pick a new room to start with.
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64 */
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65 roomcount = 1;
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66 r1 = &rdes[rnd(MAXROOMS)];
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67 r1->ingraph = TRUE;
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68 do
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69 {
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70 /*
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71 * find a room to connect with
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72 */
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73 j = 0;
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74 for (i = 0; i < MAXROOMS; i++)
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75 if (r1->conn[i] && !rdes[i].ingraph && rnd(++j) == 0)
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76 r2 = &rdes[i];
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77 /*
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78 * if no adjacent rooms are outside the graph, pick a new room
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79 * to look from
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80 */
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81 if (j == 0)
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82 {
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83 do
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84 r1 = &rdes[rnd(MAXROOMS)];
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85 until (r1->ingraph);
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86 }
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87 /*
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88 * otherwise, connect new room to the graph, and draw a tunnel
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89 * to it
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90 */
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