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annotate urogue/rooms.c @ 310:827441d05b3e

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Advanced Rogue family: fix some potential buffer overflows. Some code for determining the score file location assumed that PATH_MAX would be less than 1024, which cannot be guaranteed. Advanced Rogue 5 and 7, and XRogue, have had the buffers for the file name enlarged. UltraRogue never called the functions, so the code has been deleted instead.
author John "Elwin" Edwards
date Mon, 03 May 2021 19:05:37 -0400
parents c495a4f288c6
children
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1 /*
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2 rooms.c - Draw the nine rooms on the screen
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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 void
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23 do_rooms(void)
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24 {
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25 int i;
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26 struct room *rp;
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27 struct linked_list *item;
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28 struct thing *tp;
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29 int left_out;
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30 coord top;
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31 coord bsze;
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32 coord mp;
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33
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34 /* bsze is the maximum room size */
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35
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36 bsze.x = COLS / 3;
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37 bsze.y = (LINES - 2) / 3;
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38
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39 /* Clear things for a new level */
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40
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41 for (rp = rooms; rp < &rooms[MAXROOMS]; rp++)
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42 rp->r_nexits = rp->r_flags = rp->r_fires = 0;
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43
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44 /* Put the gone rooms, if any, on the level */
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45
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46 left_out = rnd(3);
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47
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48 for (i = 0; i < left_out; i++)
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49 rooms[rnd_room()].r_flags |= ISGONE;
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50
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51 /* dig and populate all the rooms on the level */
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52
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53 for (i = 0, rp = rooms; i < MAXROOMS; rp++, i++)
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54 {
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55 int has_gold = FALSE;
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56
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57 /* Find upper left corner of box that this room goes in */
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58
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59 top.x = (i % 3) * bsze.x;
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60 top.y = i / 3 * bsze.y + 1;
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61
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62 if (rp->r_flags & ISGONE)
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63 {
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64 /*
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65 * Place a gone room. Make certain that there is a
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66 * blank line for passage drawing.
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67 */
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68
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69 do
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70 {
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71 rp->r_pos.x = top.x + rnd(bsze.x - 2) + 1;
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72 rp->r_pos.y = top.y + rnd(bsze.y - 2) + 1;
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73 rp->r_max.x = -COLS;
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74 rp->r_max.x = -LINES;
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75 }
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76 while (rp->r_pos.y < 1 || rp->r_pos.y > LINES - 3);
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77
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78 continue;
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79 }
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80
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81 if (rnd(40) < level - 5)
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82 rp->r_flags |= ISDARK;
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83
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84 /* Find a place and size for a random room */
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85
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86 do
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87 {
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88 rp->r_max.x = rnd(bsze.x - 4) + 4;
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89 rp->r_max.y = rnd(bsze.y - 4) + 4;
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90 rp->r_pos.x = top.x + rnd(bsze.x - rp->r_max.x);
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91 rp->r_pos.y = top.y + rnd(bsze.y - rp->r_max.y);
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92 }
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93 while (rp->r_pos.y == 0);
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