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annotate rogue5/misc.c @ 81:0e212d46b68f

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rogue4: don't put savefile metadata into the savefile. The save_file() function in save.c stored the savefile's device number, inode number, creation time, and modification time in the file. The restore() function read them back, and apparently used to compare them to protect against cheaters. Unfortunately, the types and sizes of these numbers differ from system to system, which ruins the Roguelike Restoration Project's fine portability work. So they have been removed from the savefile. This BREAKS SAVEFILE COMPATIBILITY, but old files can be converted by excising the chunk starting at offset 0x22 with length sizeof(ino_t) + sizeof(dev_t) + 2 * sizeof(time_t). That's 0x14 on i686 and 0x20 on x86_64, at least with current versions of Linux and glibc.
author John "Elwin" Edwards
date Mon, 05 Aug 2013 20:49:41 -0700
parents f502bf60e6e4
children
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33
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1 /*
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2 * All sorts of miscellaneous routines
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3 *
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4 * @(#)misc.c 4.66 (Berkeley) 08/06/83
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5 *
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6 * Rogue: Exploring the Dungeons of Doom
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7 * Copyright (C) 1980-1983, 1985, 1999 Michael Toy, Ken Arnold and Glenn Wichman
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8 * All rights reserved.
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9 *
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10 * See the file LICENSE.TXT for full copyright and licensing information.
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11 */
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12
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13 #include <stdlib.h>
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14 #include <curses.h>
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15 #include <string.h>
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16 #include <ctype.h>
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17 #include "rogue.h"
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18
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19 /*
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20 * look:
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21 * A quick glance all around the player
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22 */
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23 #undef DEBUG
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24
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25
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26 void
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27 look(int wakeup)
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28 {
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29 int x, y;
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30 chtype ch;
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31 THING *tp;
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32 PLACE *pp;
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33 struct room *rp;
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34 int ey, ex;
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35 int passcount;
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36 int pfl, *fp, pch;
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37 int sy, sx, sumhero = 0, diffhero = 0;
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38 # ifdef DEBUG
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39 static int done = FALSE;
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40
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41 if (done)
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42 return;
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43 done = TRUE;
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44 # endif /* DEBUG */
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45 passcount = 0;
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46 rp = proom;
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47 if (!ce(oldpos, hero))
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48 {
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49 erase_lamp(&oldpos, oldrp);
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50 oldpos = hero;
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51 oldrp = rp;
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52 }
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53 ey = hero.y + 1;
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54 ex = hero.x + 1;
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55 sx = hero.x - 1;
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56 sy = hero.y - 1;
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57 if (door_stop && !firstmove && running)
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58 {
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59 sumhero = hero.y + hero.x;
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60 diffhero = hero.y - hero.x;
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61 }
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62 pp = INDEX(hero.y, hero.x);
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63 pch = pp->p_ch;
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64 pfl = pp->p_flags;
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65
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66 for (y = sy; y <= ey; y++)
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67 if (y > 0 && y < NUMLINES - 1) for (x = sx; x <= ex; x++)
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68 {
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69 if (x < 0 || x >= NUMCOLS)
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70 continue;
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71 if (!on(player, ISBLIND))
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72 {
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73 if (y == hero.y && x == hero.x)
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74 continue;
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75 }
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76
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77 pp = INDEX(y, x);
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78 ch = pp->p_ch;
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79 if (ch == ' ') /* nothing need be done with a ' ' */
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80 continue;
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81 fp = &pp->p_flags;
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82 if (pch != DOOR && ch != DOOR)
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83 if ((pfl & F_PASS) != (*fp & F_PASS))
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84 continue;
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85 if (((*fp & F_PASS) || ch == DOOR) &&
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86 ((pfl & F_PASS) || pch == DOOR))
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87 {
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88 if (hero.x != x && hero.y != y &&
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89 !step_ok(chat(y, hero.x)) && !step_ok(chat(hero.y, x)))
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90 continue;
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91 }
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92
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93 if ((tp = pp->p_monst) == NULL)
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94 ch = trip_ch(y, x, ch);
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95 else
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96 if (on(player, SEEMONST) && on(*tp, ISINVIS))
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97 {
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98 if (door_stop && !firstmove)
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99 running = FALSE;
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100 continue;
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101 }
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102 else
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103 {
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104 if (wakeup)
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105 wake_monster(y, x);
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106 if (see_monst(tp))
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107 {
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108 if (on(player, ISHALU))