Mercurial > hg > early-roguelike
annotate srogue/passages.c @ 229:50b89f165a34
Use uniform return types for functions related to options.
Functions for printing options now return void. Functions for setting
options now return int. Argument types still vary, though converting
all the option pointers to void* would be possible.
author | John "Elwin" Edwards |
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date | Sun, 06 Mar 2016 14:45:18 -0500 |
parents | 94a0d9dd5ce1 |
children | e52a8a7ad4c5 |
rev | line source |
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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 9.0 (rdk) 7/17/84 |
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5 * |
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6 * Super-Rogue |
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7 * Copyright (C) 1984 Robert D. Kindelberger |
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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 |
217
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17 #include <stdlib.h> |
36
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18 #include "rogue.h" |
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19 #include "rogue.ext" |
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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, struct 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 { |
183 | 32 reg struct rdes *r1, *r2 = NULL; |
36
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33 reg int i, j; |
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34 reg int roomcount; |
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35 static struct rdes { |
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36 bool conn[MAXROOMS]; /* possible to connect to room i */ |
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37 bool isconn[MAXROOMS]; /* connection was 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]; r1++) { |
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55 for (j = 0; j < MAXROOMS; j++) |
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56 r1->isconn[j] = FALSE; |
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57 r1->ingraph = FALSE; |
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58 } |
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59 |
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60 /* |
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61 * starting with one room, connect it to a random adjacent room and |
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62 * then pick a new room to start with. |
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63 */ |
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64 roomcount = 1; |
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65 r1 = &rdes[rnd(MAXROOMS)]; |
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66 r1->ingraph = TRUE; |
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67 do { |
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68 /* |
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69 * find a room to connect with |
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70 */ |
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71 j = 0; |
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72 for (i = 0; i < MAXROOMS; i++) |
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73 if (r1->conn[i] && !rdes[i].ingraph && rnd(++j) == 0) |
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74 r2 = &rdes[i]; |
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75 /* |
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76 * if no adjacent rooms are outside the graph, pick a new room |
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77 * to look from |
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78 */ |
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79 if (j == 0) { |
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80 do { |
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81 r1 = &rdes[rnd(MAXROOMS)]; |
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82 } until (r1->ingraph); |
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83 } |
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84 /* |
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85 * otherwise, connect new room to the graph, and draw a tunnel |
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86 * to it |
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87 */ |
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88 else { |
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89 r2->ingraph = TRUE; |
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90 i = r1 - rdes; |
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91 j = r2 - rdes; |
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92 conn(i, j); |
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93 r1->isconn[j] = TRUE; |
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94 r2->isconn[i] = TRUE; |
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95 roomcount++; |
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96 } |
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97 } while (roomcount < MAXROOMS); |
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98 |
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99 /* |
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100 * attempt to add passages to the graph a random number of times so |
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101 * that there isn't just one unique passage through it. |
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