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annotate xrogue/scrolls.c @ 140:856017d63519

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xrogue: don't segfault when backstabbing while empty-handed. The code for backstabbing checked the weapon's properties without making sure it was not NULL.
author John "Elwin" Edwards
date Tue, 05 May 2015 12:12:20 -0400
parents ce0cf824c192
children a0a57cf42810
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133
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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 XRogue: Expeditions into the Dungeons of Doom
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5 Copyright (C) 1991 Robert Pietkivitch
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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 and AT&T
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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
135
ce0cf824c192 xrogue: add missing includes.
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19 #include <stdlib.h>
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20 #include <curses.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 * let the hero get rid of some type of monster
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26 */
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27
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28 genocide()
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29 {
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30 register struct linked_list *ip;
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31 register struct thing *mp;
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32 register struct linked_list *nip;
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33 /* cannot genocide any uniques */
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34 register int num_monst = NUMMONST-NUMUNIQUE-NUMDINOS;
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35 register int which_monst;
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36
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37 which_monst = makemonster(FALSE, "wipe out");
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38 if (which_monst <= 0 || which_monst >= num_monst) {
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39 msg("");
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40 return;
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41 }
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42
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43 /* Remove this monster from the present level */
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44 for (ip = mlist; ip; ip = nip) {
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45 mp = THINGPTR(ip);
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46 nip = next(ip);
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47 if (mp->t_index == which_monst) {
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48 killed(ip, FALSE, FALSE, TRUE);
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49 }
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50 }
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51
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52 /* Remove from available monsters */
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53 monsters[which_monst].m_normal = FALSE;
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54 monsters[which_monst].m_wander = FALSE;
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55 mpos = 0;
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56 msg("You have wiped out the %s.", monsters[which_monst].m_name);
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57 }
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58
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59 read_scroll(which, flag, is_scroll)
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60 register int which;
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61 int flag;
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62 bool is_scroll;
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63 {
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64 register struct object *obj = NULL, *nobj;
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65 register struct linked_list *item, *nitem;
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66 register int i,j;
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67 register unsigned char ch, nch;
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68 bool cursed, blessed;
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69
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70 blessed = FALSE;
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71 cursed = FALSE;
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72 item = NULL;
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73
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74 if (which < 0) {
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75 if (on(player, ISBLIND)) {
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76 msg("You can't see to read anything!");
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77 return;
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78 }
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79 if (on(player, ISINWALL)) {
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80 msg("You can't see the scroll while inside rock!");
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81 return;
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82 }
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83
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84 /* This is a scroll or book. */
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85 if (player.t_action != C_READ) {
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86 int units;
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87
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88 item = get_item(pack, "read", READABLE, FALSE, FALSE);
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89
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90 /*
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91 * Make certain that it is somethings that we want to read
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92 */
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