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annotate rogue5/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 f502bf60e6e4
children 696277507a2e
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33
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1 /*
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2 * Function(s) for dealing with potions
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3 *
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4 * @(#)potions.c 4.46 (Berkeley) 06/07/83
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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 <curses.h>
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14 #include <ctype.h>
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15 #include "rogue.h"
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16
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17 typedef struct PACT
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18 {
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19 const int pa_flags;
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20 void (*pa_daemon)();
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21 const int pa_time;
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22 const char *pa_high, *pa_straight;
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23 } PACT;
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24
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25 static const PACT p_actions[] =
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26 {
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27 { ISHUH, unconfuse, HUHDURATION, /* P_CONFUSE */
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28 "what a tripy feeling!",
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29 "wait, what's going on here. Huh? What? Who?" },
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30 { ISHALU, come_down, SEEDURATION, /* P_LSD */
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31 "Oh, wow! Everything seems so cosmic!",
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32 "Oh, wow! Everything seems so cosmic!" },
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33 { 0, NULL, 0 }, /* P_POISON */
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34 { 0, NULL, 0 }, /* P_STRENGTH */
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35 { CANSEE, unsee, SEEDURATION, /* P_SEEINVIS */
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36 prbuf,
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37 prbuf },
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38 { 0, NULL, 0 }, /* P_HEALING */
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39 { 0, NULL, 0 }, /* P_MFIND */
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40 { 0, NULL, 0 }, /* P_TFIND */
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41 { 0, NULL, 0 }, /* P_RAISE */
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42 { 0, NULL, 0 }, /* P_XHEAL */
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43 { 0, NULL, 0 }, /* P_HASTE */
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44 { 0, NULL, 0 }, /* P_RESTORE */
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45 { ISBLIND, sight, SEEDURATION, /* P_BLIND */
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46 "oh, bummer! Everything is dark! Help!",
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47 "a cloak of darkness falls around you" },
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48 { ISLEVIT, land, HEALTIME, /* P_LEVIT */
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49 "oh, wow! You're floating in the air!",
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50 "you start to float in the air" }
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51 };
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52
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53 /*
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54 * quaff:
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55 * Quaff a potion from the pack
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56 */
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57
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58 void
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59 quaff(void)
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60 {
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61 THING *obj, *tp, *mp;
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62 int discardit = FALSE;
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63 int show, trip;
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64
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65 obj = get_item("quaff", POTION);
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66 /*
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67 * Make certain that it is somethings that we want to drink
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68 */
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69 if (obj == NULL)
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70 return;
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71 if (obj->o_type != POTION)
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72 {
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73 if (!terse)
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74 msg("yuk! Why would you want to drink that?");
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75 else
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76 msg("that's undrinkable");
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77 return;
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78 }
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79 if (obj == cur_weapon)
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80 cur_weapon = NULL;
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81
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82 /*
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83 * Calculate the effect it has on the poor guy.
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84 */
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85 trip = on(player, ISHALU);
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86 discardit = (obj->o_count == 1);
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87 leave_pack(obj, FALSE, FALSE);
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88 switch (obj->o_which)
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89 {
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90 case P_CONFUSE:
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91 do_pot(P_CONFUSE, !trip);
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92 when P_POISON:
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93 pot_info[P_POISON].oi_know = TRUE;
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94 if (ISWEARING(R_SUSTSTR))
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95 msg("you feel momentarily sick");
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96 else
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97 {
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98 chg_str(-(rnd(3) + 1));
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99 msg("you feel very sick now");
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100 come_down();
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101 }
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102 when P_HEALING:
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103 pot_info[P_HEALING].oi_know = TRUE;
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104 if ((pstats.s_hpt += roll(pstats.s_lvl, 4)) > max_hp)
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105 pstats.s_hpt = ++max_hp;
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