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annotate urogue/passages.c @ 292:ebf49a933e51

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UltraRogue: ask about unidentified magic items by default.
author John "Elwin" Edwards
date Fri, 29 Dec 2017 14:16:24 -0500
parents c495a4f288c6
children
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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 UltraRogue: The Ultimate Adventure in the Dungeons of Doom
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5 Copyright (C) 1985, 1986, 1992, 1993, 1995 Herb Chong
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6 All rights reserved.
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7
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8 Based on "Advanced Rogue"
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9 Copyright (C) 1984, 1985 Michael Morgan, Ken Dalka
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10 All rights reserved.
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11
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12 Based on "Rogue: Exploring the Dungeons of Doom"
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13 Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
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14 All rights reserved.
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15
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16 See the file LICENSE.TXT for full copyright and licensing information.
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17 */
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18
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19 #include <stdlib.h>
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20 #include "rogue.h"
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21
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22 #define cmov(xy) move((xy).y, (xy).x)
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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 struct rdes *r1, *r2 = NULL;
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33 int i, j;
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34 int roomcount;
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35
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36 static struct rdes rdes[MAXROOMS] =
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37 {
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38 {{ 0, 1, 0, 1, 0, 0, 0, 0, 0},
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39 { 0, 0, 0, 0, 0, 0, 0, 0, 0}, 0},
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40 {{ 1, 0, 1, 0, 1, 0, 0, 0, 0},
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41 { 0, 0, 0, 0, 0, 0, 0, 0, 0}, 0},
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42 {{ 0, 1, 0, 0, 0, 1, 0, 0, 0},
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43 { 0, 0, 0, 0, 0, 0, 0, 0, 0}, 0},
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44 {{ 1, 0, 0, 0, 1, 0, 1, 0, 0},
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45 { 0, 0, 0, 0, 0, 0, 0, 0, 0}, 0},
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46 {{ 0, 1, 0, 1, 0, 1, 0, 1, 0},
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47 { 0, 0, 0, 0, 0, 0, 0, 0, 0}, 0},
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48 {{ 0, 0, 1, 0, 1, 0, 0, 0, 1},
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49 { 0, 0, 0, 0, 0, 0, 0, 0, 0}, 0},
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50 {{ 0, 0, 0, 1, 0, 0, 0, 1, 0},
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51 { 0, 0, 0, 0, 0, 0, 0, 0, 0}, 0},
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52 {{ 0, 0, 0, 0, 1, 0, 1, 0, 1},
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53 { 0, 0, 0, 0, 0, 0, 0, 0, 0}, 0},
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54 {{ 0, 0, 0, 0, 0, 1, 0, 1, 0},
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55 { 0, 0, 0, 0, 0, 0, 0, 0, 0}, 0}
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56 };
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57
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58 /* reinitialize room graph description */
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59
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60 for (r1 = rdes; r1 < &rdes[MAXROOMS]; r1++)
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61 {
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62 for (j = 0; j < MAXROOMS; j++)
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63 r1->isconn[j] = FALSE;
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64
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65 r1->ingraph = FALSE;
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66 }
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67
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68 /*
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69 * starting with one room, connect it to a random adjacent room and
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70 * then pick a new room to start with.
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71 */
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72
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73 roomcount = 1;
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74 r1 = &rdes[rnd(MAXROOMS)];
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75 r1->ingraph = TRUE;
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76
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77 do
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78 {
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79 j = 0;
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80
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81 for (i = 0; i < MAXROOMS; i++)
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82 if (r1->conn[i] && !rdes[i].ingraph && rnd(++j) == 0)
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83 r2 = &rdes[i];
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84
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85 /*
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86 * if no adjacent rooms are outside the graph, pick a new
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87 * room to look from
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88 */
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89
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90 if (j == 0)
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91 do
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92 {
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93 r1 = &rdes[rnd(MAXROOMS)];