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annotate srogue/potions.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 3aa87373c908
children 94a0d9dd5ce1
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1 /*
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2 * Functions for dealing with potions
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3 *
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4 * @(#)potions.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 <stdlib.h>
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18 #include <string.h>
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19 #include "rogue.h"
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20 #include "rogue.ext"
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21
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22 /*
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23 * quaff:
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24 * Let the hero drink a potion
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25 */
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26 quaff()
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27 {
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28 reg struct object *obj;
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29 reg struct linked_list *item, *titem;
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30 reg struct thing *th;
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31 reg int wh;
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32 char buf[LINLEN];
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33 bool bless, curse;
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34
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35 /*
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36 * Make certain that it is somethings that we want to drink
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37 */
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38 if ((item = get_item("quaff", POTION)) == NULL)
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39 return;
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40 obj = OBJPTR(item);
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41 if (obj->o_type != POTION) {
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42 msg("That's undrinkable!");
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43 after = FALSE;
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44 return;
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45 }
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46 wh = obj->o_which;
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47 bless = o_on(obj, ISBLESS);
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48 curse = o_on(obj, ISCURSED);
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49 del_pack(item); /* get rid of it */
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50
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51 /*
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52 * Calculate the effect it has on the poor guy.
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53 */
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54 switch(wh) {
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55 case P_CONFUSE:
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56 if (!bless) {
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57 if (pl_on(ISINVINC))
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58 msg("You remain level-headed.");
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59 else {
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60 chg_abil(WIS,-1,TRUE); /* confuse his mind */
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61 if (pl_off(ISHUH)) {
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62 msg("Wait, what's going on here. Huh? What? Who?");
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63 if (pl_on(ISHUH))
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64 lengthen(unconfuse,rnd(8)+HUHDURATION);
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65 else
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66 fuse(unconfuse,TRUE,rnd(8)+HUHDURATION);
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67 player.t_flags |= ISHUH;
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68 }
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69 }
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70 p_know[P_CONFUSE] = TRUE;
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71 }
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72 when P_POISON:
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73 if (!bless) {
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74 if (pl_off(ISINVINC) && !iswearing(R_SUSTSTR) &&
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75 !iswearing(R_SUSAB)) {
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76 chg_abil(CON,-1,TRUE);
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77 chg_abil(STR,-(rnd(3)+1),TRUE);
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78 msg("You feel very sick now.");
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79 }
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80 else
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81 msg("You feel momentarily sick.");
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82 p_know[P_POISON] = TRUE;
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83 }
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84 when P_HEALING:
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85 if (!curse) {
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86 heal_self(4, TRUE);
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87 msg("You begin to feel better.");
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88 if (!iswearing(R_SLOW))
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89 notslow(FALSE);
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90 sight(FALSE);
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91 p_know[P_HEALING] = TRUE;
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92 }
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93 when P_STRENGTH:
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94 if (!curse) {
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95 msg("You feel stronger, now. What bulging muscles!");
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96 chg_abil(STR,1,TRUE);
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97 p_know[P_STRENGTH] = TRUE;
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98 }
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99 when P_MFIND:
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100 /*
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101 * Potion of monster detection - find all monsters
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102 */
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103 if (mlist != NULL && !curse) {
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104 dispmons();
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