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annotate srogue/rings.c @ 72:46f39359c4a7

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arogue5: avoid segfaulting if getpwuid() fails.
author elwin
date Sat, 11 Aug 2012 23:45:34 +0000
parents 3aa87373c908
children 94a0d9dd5ce1
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36
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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 * @(#)rings.c 9.0 (rdk) 7/17/84
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5 *
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6 * Super-Rogue
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7 * Copyright (C) 1984 Robert D. Kindelberger
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8 * All rights reserved.
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9 *
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10 * Based on "Rogue: Exploring the Dungeons of Doom"
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11 * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
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12 * All rights reserved.
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13 *
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14 * See the file LICENSE.TXT for full copyright and licensing information.
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15 */
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16
60
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17 #include <stdlib.h>
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18 #include <string.h>
36
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19 #include "rogue.h"
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20 #include "rogue.ext"
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21
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22 /*
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23 * ring_on:
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24 * Put on a ring
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25 */
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26 ring_on()
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27 {
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28 reg struct object *obj;
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29 reg struct linked_list *item;
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30 reg int ring, wh;
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31 char buf[LINLEN];
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32 bool okring;
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33
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34 if (cur_ring[LEFT] != NULL && cur_ring[RIGHT] != NULL) {
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35 msg("Already wearing two rings.");
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36 after = FALSE;
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37 return;
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38 }
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39 /*
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40 * Make certain that it is somethings that we want to wear
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41 */
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42 if ((item = get_item("put on", RING)) == NULL)
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43 return;
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44 obj = OBJPTR(item);
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45 if (obj->o_type != RING) {
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46 msg("That won't fit on your finger.");
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47 return;
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48 }
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49 /*
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50 * find out which hand to put it on
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51 */
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52 if (is_current(obj))
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53 return;
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54 if (cur_ring[LEFT] == NULL && cur_ring[RIGHT] == NULL) {
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55 if ((ring = gethand(FALSE)) < 0)
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56 return;
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57 }
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58 else if (cur_ring[LEFT] == NULL)
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59 ring = LEFT;
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60 else
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61 ring = RIGHT;
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62 cur_ring[ring] = obj;
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63 wh = obj->o_which;
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64 /*
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65 * okring = FALSE when:
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66 * 1) ring is cursed and benefit = plus
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67 * 2) ring is blessed and benefit = minus
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68 */
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69 okring = !((obj->o_ac > 0 && o_on(obj, ISCURSED)) ||
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70 (obj->o_ac < 0 && o_on(obj, ISBLESS)));
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71 /*
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72 * Calculate the effect it has on the poor guy (if possible).
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73 */
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74 if (okring) {
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75 switch (wh) {
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76 case R_SPEED:
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77 if (--obj->o_ac < 0) {
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78 obj->o_ac = 0;
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79 setoflg(obj,ISCURSED);
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80 }
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81 else {
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82 add_haste(FALSE);
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83 msg("You find yourself moving must faster.");
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84 }
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85 when R_GIANT: /* to 24 */
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86 him->s_ef.a_str = MAXSTR;
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87 when R_ADDSTR:
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88 chg_abil(STR,obj->o_ac,FROMRING);
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89 when R_KNOW:
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90 chg_abil(WIS,obj->o_ac,FROMRING);
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91 when R_DEX:
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92 chg_abil(DEX,obj->o_ac,FROMRING);
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93 when R_CONST:
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94 chg_abil(CON,obj->o_ac,FROMRING);
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95 when R_SEEINVIS:
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96 player.t_flags |= CANSEE;
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97 light(&hero);
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98 mvwaddch(cw, hero.y, hero.x, PLAYER);
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99 when R_AGGR:
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100 aggravate();
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101 when R_HEAVY:
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102 updpack(); /* new pack weight */
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103 when R_BLIND:
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104 r_know[R_BLIND] = TRUE;
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105 player.t_flags |= ISBLIND;
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106 look(FALSE);
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