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annotate arogue5/rings.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 f2951c4e28d9
children 56e748983fa8
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
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1 /*
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2 * routines dealing specifically with rings
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3 *
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4 * Advanced Rogue
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5 * Copyright (C) 1984, 1985 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 #include "curses.h"
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16 #include "rogue.h"
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c49f7927b0fa arogue5: add missing header files.
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17 #include <stdlib.h>
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18 #include <string.h>
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19
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20 /*
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21 * how much food does this ring use up?
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22 */
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23 ring_eat(hand)
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24 register int hand;
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25 {
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26 if (cur_ring[hand] == NULL)
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27 return 0;
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28 switch (cur_ring[hand]->o_which) {
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29 case R_VAMPREGEN:
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30 return 3;
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31 case R_REGEN:
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32 return 2;
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33 case R_HEALTH:
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34 case R_SUSABILITY:
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35 return 1;
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36 case R_SEARCH:
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37 case R_SEEINVIS:
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38 return (rnd(100) < 33);
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39 case R_DIGEST:
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40 if (cur_ring[hand]->o_ac >= 0)
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41 return (-(cur_ring[hand]->o_ac)-1);
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42 else
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43 return (-(cur_ring[hand]->o_ac));
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44 }
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45 return 0;
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46 }
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47
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48 ring_on(obj)
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49 register struct object *obj;
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50 {
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51 register int save_max;
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52 char buf[LINELEN];
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53
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54 /*
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55 * Calculate the effect it has on the poor guy.
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56 */
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57 switch (obj->o_which)
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58 {
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59 case R_ADDSTR:
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60 save_max = max_stats.s_str;
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61 chg_str(obj->o_ac);
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62 max_stats.s_str = save_max;
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63 when R_ADDHIT:
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64 pstats.s_dext += obj->o_ac;
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65 when R_ADDINTEL:
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66 pstats.s_intel += obj->o_ac;
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67 when R_ADDWISDOM:
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68 pstats.s_wisdom += obj->o_ac;
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69 when R_SEEINVIS:
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70 turn_on(player, CANSEE);
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71 msg("Your eyes begin to tingle");
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72 light(&hero);
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73 mvwaddch(cw, hero.y, hero.x, PLAYER);
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74 when R_AGGR:
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75 aggravate();
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76 when R_WARMTH:
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77 turn_on(player, NOCOLD);
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78 when R_FIRE:
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79 turn_on(player, NOFIRE);
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80 when R_LIGHT: {
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81 if(roomin(&hero) != NULL) {
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82 light(&hero);
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83 mvwaddch(cw, hero.y, hero.x, PLAYER);
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84 }
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85 }
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86 when R_SEARCH:
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f2951c4e28d9 Rename daemon() to start_daemon().
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87 start_daemon(ring_search, 0, AFTER);
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88 when R_TELEPORT:
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89 start_daemon(ring_teleport, 0, AFTER);
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90 }
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91 status(FALSE);
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92 if (r_know[obj->o_which] && r_guess[obj->o_which])
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93 {
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94 free(r_guess[obj->o_which]);
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95 r_guess[obj->o_which] = NULL;
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96 }
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97 else if (!r_know[obj->o_which] &&
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98 askme &&
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99 (obj->o_flags & ISKNOW) == 0 &&
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100 r_guess[obj->o_which] == NULL) {
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101 msg(terse ? "Call it: " : "What do you want to call it? ");
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102 if (get_str(buf, msgw) == NORM)
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103 {
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