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annotate arogue7/scrolls.c @ 132:66b0263af424

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arogue7: prevent segfaults when backstabbing while empty-handed. The calculation of the backstabbing multiplier checked the current weapon's properties without making sure the current weapon pointer was not NULL.
author John "Elwin" Edwards
date Tue, 12 May 2015 18:57:30 -0400
parents b786053d2f37
children 0298a68cc179
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adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
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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 * Advanced Rogue
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5 * Copyright (C) 1984, 1985, 1986 Michael Morgan, Ken Dalka and AT&T
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6 * All rights reserved.
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7 *
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8 * Based on "Rogue: Exploring the Dungeons of Doom"
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9 * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
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10 * All rights reserved.
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11 *
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12 * See the file LICENSE.TXT for full copyright and licensing information.
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13 */
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14
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15 /*
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16 * Read a scroll and let it happen
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17 *
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18 */
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19
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20 #include "curses.h"
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b786053d2f37 arogue7: add missing header includes.
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21 #include <stdlib.h>
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22 #include <ctype.h>
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23 #include "rogue.h"
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24
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25 /*
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26 * let the hero get rid of some type of monster (but not a UNIQUE!)
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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 register int num_monst = NUMMONST-NUMUNIQUE-1, /* cannot genocide uniques */
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34 pres_monst=1,
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35 num_lines=2*(lines-3);
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36 register int which_monst;
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37
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38 which_monst = makemonster(FALSE, "Genocide", "wipe out");
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39 if (which_monst <= 0) {
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40 msg("");
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41 return;
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42 }
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43
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44 /* Remove this monster from the present level */
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45 for (ip = mlist; ip; ip = nip) {
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46 mp = THINGPTR(ip);
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47 nip = next(ip);
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48 if (mp->t_index == which_monst) {
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49 killed(ip, FALSE, FALSE, TRUE);
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50 }
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51 }
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52
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53 /* Remove from available monsters */
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54 monsters[which_monst].m_normal = FALSE;
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55 monsters[which_monst].m_wander = FALSE;
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56 mpos = 0;
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57 msg("You have wiped out the %s.", monsters[which_monst].m_name);
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58 }
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59
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60 read_scroll(which, flag, is_scroll)
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61 register int which;
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62 int flag;
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63 bool is_scroll;
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64 {
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65 register struct object *obj, *nobj;
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66 register struct linked_list *item, *nitem;
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67 register int i,j;
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68 register char ch, nch;
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69 bool cursed, blessed;
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70
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71 blessed = FALSE;
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72 cursed = FALSE;
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73 item = NULL;
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74
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75 if (which < 0) {
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76 if (on(player, ISBLIND)) {
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77 msg("You can't see to read anything");
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78 return;
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79 }
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80 if (on(player, ISINWALL)) {
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81 msg("You can't see the scroll while inside rock!");
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82 return;
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83 }
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84
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85 /* This is a scroll or book. */
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86 if (player.t_action != C_READ) {
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87 int units;
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88
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89 item = get_item(pack, "read", READABLE, FALSE, FALSE);
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90
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91 /*
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