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annotate urogue/scrolls.c @ 256:c495a4f288c6

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Import UltraRogue from the Roguelike Restoration Project (r1490)
author John "Elwin" Edwards
date Tue, 31 Jan 2017 19:56:04 -0500
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children e52a8a7ad4c5
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1 /*
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2 scrolls.c - Functions for dealing with scrolls
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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 <string.h>
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21 #include <ctype.h>
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22 #include "rogue.h"
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23
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24 /*
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25 read_scroll - read a scroll (or effect a scroll-like spell)
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26 reader: who does it
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27 which: which S_SCROLL (-1 means ask from pack)
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28 flags: ISBLESSED, ISCURSED
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29 */
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30
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31 void
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32 read_scroll(struct thing *reader, int which, int flags)
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33 {
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34 struct object *obj;
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35 struct linked_list *item, *nitem;
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36 int i, j, charm_power;
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37 char ch, nch;
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38 int blessed = flags & ISBLESSED;
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39 int cursed = flags & ISCURSED;
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40 int is_scroll = (which < 0 ? TRUE : FALSE);
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41 char buf[2 * LINELEN];
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42
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43 if (reader != &player)
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44 {
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45 monread(reader, which, flags);
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46 return;
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47 }
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48
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49 if (is_scroll) /* A regular scroll */
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50 {
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51 if ((item = get_item("read", SCROLL)) == NULL)
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52 return;
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53
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54 obj = OBJPTR(item);
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55
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56 if (obj->o_type != SCROLL)
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57 {
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58 msg("It says 'Made in Yugoslavia'!");
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59 return;
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60 }
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61
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62 if (on(player, ISBLIND))
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63 {
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64 msg("You can't see to read anything.");
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65 return;
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66 }
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67
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68 /* Calculate its effect */
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69
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70 cursed = obj->o_flags & ISCURSED;
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71 blessed = obj->o_flags & ISBLESSED;
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72 flags = obj->o_flags;
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73 which = obj->o_which;
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74
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75 /* remove it from the pack */
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76
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77 rem_pack(obj);
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78 discard(item);
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79 updpack();
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80 }
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81
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82 switch (which)
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83 {
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84 case S_CONFUSE: /* Touch causes monster confusion. */
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85 if (cursed)
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86 quaff(reader, P_CLEAR, ISCURSED);
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87 else
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88 {
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89 msg("Your hands begin to glow red.");
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90 turn_on(player, CANHUH);
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91 /* if blessed... */