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annotate srogue/rooms.c @ 82:f11eeafc6568

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srogue: don't store machine-dependent metadata in the savefile. Super-Rogue, like Rogue V4, stored data of machine-dependent length in the savefile, to prevent cheating. This made saved games non-portable. Also deleted was a check that used this data, and prevented restoring savefiles from backup. This change BREAKS SAVEFILE COMPATIBILITY, but old files can be converted by removing the block at offset 0x1e with length sizeof(ino_t) + sizeof(dev_t) + 2 * sizeof(time_t). That seems to be 0x14 on i686 and 0x20 on x86_64.
author John "Elwin" Edwards
date Tue, 06 Aug 2013 19:02:58 -0700
parents 2128c7dc8a40
children 94a0d9dd5ce1
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36
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1 /*
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2 * Draw the nine rooms on the screen
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3 *
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4 * @(#)rooms.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
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17 #include "rogue.h"
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18 #include "rogue.ext"
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19
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20 /*
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21 * do_rooms:
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22 * Place the rooms in the dungeon
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23 */
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24 do_rooms()
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25 {
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26 int mloops, mchance, nummons, left_out, roomtries;
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27 bool treas = FALSE;
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28 reg int i;
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29 reg struct room *rp;
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30 reg struct linked_list *item;
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31 reg struct thing *tp;
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32 struct coord top, bsze, mp;
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33
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34 /*
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35 * bsze is the maximum room size
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36 */
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37 bsze.x = COLS / 3;
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38 bsze.y = (LINES - 1) / 3;
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39 /*
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40 * Clear things for a new level
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41 */
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42 for (rp = rooms; rp < &rooms[MAXROOMS]; rp++)
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43 rp->r_goldval = rp->r_nexits = rp->r_flags = 0;
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44 /*
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45 * Put the gone rooms, if any, on the level
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46 */
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47 left_out = rnd(4);
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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 * Find upper left corner of box that this room goes in
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56 */
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57 top.x = (i%3) * bsze.x + 1;
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58 top.y = i/3 * bsze.y;
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59 if (rf_on(rp,ISGONE)) {
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60 /*
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61 * Place a gone room. Make certain that there is a
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62 * blank line for passage drawing.
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63 */
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64 roomtries = 0;
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65 do {
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66 rp->r_pos.x = top.x + rnd(bsze.x-2) + 1;
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67 rp->r_pos.y = top.y + rnd(bsze.y-2) + 1;
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68 rp->r_max.x = -COLS;
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69 rp->r_max.x = -LINES;
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70 if (++roomtries > 250)
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71 fatal("failed to place a gone room");
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72 } until(rp->r_pos.y > 0 && rp->r_pos.y < LINES-2);
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73 continue;
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74 }
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75 if (rnd(10) < level-1)
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76 rp->r_flags |= ISDARK;
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77 /*
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78 * Find a place and size for a random room
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79 */
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80 roomtries = 0;
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81 do {
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82 rp->r_max.x = rnd(bsze.x - 4) + 4;
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83 rp->r_max.y = rnd(bsze.y - 4) + 4;
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84 rp->r_pos.x = top.x + rnd(bsze.x - rp->r_max.x);
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85 rp->r_pos.y = top.y + rnd(bsze.y - rp->r_max.y);
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86 if (++roomtries > 250) {
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87 fatal("failed to place a good room");
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88 }
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89 } until (rp->r_pos.y != 0);
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90 if (level < max_level)
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91 mchance = 30; /* 30% when going up (all monsters) */
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92 else
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93 mchance = 3; /* 3% when going down */
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94 treas = FALSE;
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95 if (rnd(100) < mchance && (rp->r_max.x * rp->r_max.y) >
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96 ((bsze.x * bsze.y * 55) / 100)) {
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97 treas = TRUE;
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98 rp->r_flags |= ISTREAS;
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99 rp->r_flags |= ISDARK;
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100 }
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101 /*
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102 * Put the gold in
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103 */
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104 if ((rnd(100) < 50 || treas) && (!amulet || level >= max_level)) {
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105 rp->r_goldval = GOLDCALC;
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