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annotate xrogue/scrolls.c @ 306:057c5114e244

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Super-Rogue: fix some out-of-range constants. Constants K_ARROW etc., for causes of death other than monsters, are in the 240-255 range. They were often passed to functions taking char, which is usually signed, making the values out of range. The function declarations have been changed to unsigned char, which is also the type used by the scoreboard code.
author John "Elwin" Edwards
date Sat, 17 Apr 2021 15:41:12 -0400
parents e52a8a7ad4c5
children
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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
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19 #include <stdlib.h>
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20 #include <string.h>
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21 #include <curses.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
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27 */
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28
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29 void
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30 genocide(void)
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31 {
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32 register struct linked_list *ip;
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33 register struct thing *mp;
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34 register struct linked_list *nip;
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35 /* cannot genocide any uniques */
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36 register int num_monst = NUMMONST-NUMUNIQUE-NUMDINOS;
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37 register int which_monst;
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38
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39 which_monst = makemonster(FALSE, "wipe out");
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40 if (which_monst <= 0 || which_monst >= num_monst) {
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41 msg("");
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42 return;
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43 }
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44
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45 /* Remove this monster from the present level */
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46 for (ip = mlist; ip; ip = nip) {
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47 mp = THINGPTR(ip);
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48 nip = next(ip);
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49 if (mp->t_index == which_monst) {
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50 killed(ip, FALSE, FALSE, TRUE);
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51 }
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52 }
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53
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54 /* Remove from available monsters */
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55 monsters[which_monst].m_normal = FALSE;
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56 monsters[which_monst].m_wander = FALSE;
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57 mpos = 0;
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58 msg("You have wiped out the %s.", monsters[which_monst].m_name);
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59 }
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60
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61 void
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62 read_scroll(int which, int flag, 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