Mercurial > hg > early-roguelike
annotate arogue5/passages.c @ 119:458df24e973d
srogue: use functions from mdport.c.
Shell escape, passwd entries, terminal settings, and most signal
handling is now done with the more portable md_* functions.
author | John "Elwin" Edwards |
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date | Wed, 30 Apr 2014 14:46:30 -0700 |
parents | 0ed67132cf10 |
children | 56e748983fa8 |
rev | line source |
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63
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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 "curses.h" |
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18 #include "rogue.h" |
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19 |
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20 /* |
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21 * do_passages: |
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22 * Draw all the passages on a level. |
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23 */ |
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24 |
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25 do_passages() |
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26 { |
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27 register struct rdes *r1, *r2 = NULL; |
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28 register int i, j; |
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29 register int roomcount; |
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30 static struct rdes |
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31 { |
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32 bool conn[MAXROOMS]; /* possible to connect to room i? */ |
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33 bool isconn[MAXROOMS]; /* connection been made to room i? */ |
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34 bool ingraph; /* this room in graph already? */ |
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35 } rdes[MAXROOMS] = { |
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36 { { 0, 1, 0, 1, 0, 0, 0, 0, 0 }, { 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 }, |
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37 { { 1, 0, 1, 0, 1, 0, 0, 0, 0 }, { 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 }, |
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38 { { 0, 1, 0, 0, 0, 1, 0, 0, 0 }, { 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 }, |
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39 { { 1, 0, 0, 0, 1, 0, 1, 0, 0 }, { 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 }, |
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40 { { 0, 1, 0, 1, 0, 1, 0, 1, 0 }, { 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 }, |
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41 { { 0, 0, 1, 0, 1, 0, 0, 0, 1 }, { 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 }, |
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42 { { 0, 0, 0, 1, 0, 0, 0, 1, 0 }, { 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 }, |
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43 { { 0, 0, 0, 0, 1, 0, 1, 0, 1 }, { 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 }, |
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44 { { 0, 0, 0, 0, 0, 1, 0, 1, 0 }, { 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 }, |
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45 }; |
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46 |
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47 /* |
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48 * reinitialize room graph description |
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49 */ |
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50 for (r1 = rdes; r1 <= &rdes[MAXROOMS-1]; r1++) |
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51 { |
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52 for (j = 0; j < MAXROOMS; j++) |
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53 r1->isconn[j] = FALSE; |
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54 r1->ingraph = FALSE; |
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55 } |
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56 |
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57 /* |
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58 * starting with one room, connect it to a random adjacent room and |
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59 * then pick a new room to start with. |
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60 */ |
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61 roomcount = 1; |
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62 r1 = &rdes[rnd(MAXROOMS)]; |
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63 r1->ingraph = TRUE; |
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64 do |
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65 { |
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66 /* |
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67 * find a room to connect with |
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68 */ |
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69 j = 0; |
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70 for (i = 0; i < MAXROOMS; i++) |
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71 if (r1->conn[i] && !rdes[i].ingraph && rnd(++j) == 0) |
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72 r2 = &rdes[i]; |
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73 /* |
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74 * if no adjacent rooms are outside the graph, pick a new room |
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75 * to look from |
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76 */ |
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77 if (j == 0) |
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78 { |
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79 do |
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80 r1 = &rdes[rnd(MAXROOMS)]; |
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81 until (r1->ingraph); |
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82 } |
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83 /* |
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84 * otherwise, connect new room to the graph, and draw a tunnel |
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85 * to it |
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86 */ |
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87 else |
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88 { |
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89 r2->ingraph = TRUE; |
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90 i = (int)(r1 - rdes); |
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91 j = (int)(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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102 */ |
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103 for (roomcount = rnd(5); roomcount > 0; roomcount--) |
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104 |