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annotate rogue5/scrolls.c @ 96:9fb343307b6b

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Fix some 'test' failures when running 'make install'. When shell variables are unexpectedly empty, 'test' gets the wrong number of arguments and becomes unhappy. Logical AND should not be done with 'test EXPR1 -a EXPR2' in such cases, because 'test' logic does not short-circuit. Replace with 'test EXPR1 && test EXPR2'. Shell logic does short-circuit, and if the first test invocation fails, the second will never occur, and will never encounter missing arguments.
author John "Elwin" Edwards
date Tue, 27 Aug 2013 22:54:28 -0700
parents f502bf60e6e4
children
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33
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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1 /*
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2 * Read a scroll and let it happen
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3 *
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4 * @(#)scrolls.c 4.44 (Berkeley) 02/05/99
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5 *
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6 * Rogue: Exploring the Dungeons of Doom
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7 * Copyright (C) 1980-1983, 1985, 1999 Michael Toy, Ken Arnold and Glenn Wichman
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8 * All rights reserved.
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9 *
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10 * See the file LICENSE.TXT for full copyright and licensing information.
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11 */
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12
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13 #include <curses.h>
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14 #include <ctype.h>
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15 #include "rogue.h"
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16
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17 /*
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18 * read_scroll:
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19 * Read a scroll from the pack and do the appropriate thing
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20 */
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21
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22 void
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23 read_scroll(void)
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24 {
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25 THING *obj;
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26 PLACE *pp;
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27 int y, x;
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28 int ch;
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29 int i;
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30 int discardit = FALSE;
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31 struct room *cur_room;
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32 THING *orig_obj;
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33 coord mp;
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34
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35 obj = get_item("read", SCROLL);
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36 if (obj == NULL)
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37 return;
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38 if (obj->o_type != SCROLL)
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39 {
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40 if (!terse)
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41 msg("there is nothing on it to read");
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42 else
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43 msg("nothing to read");
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44 return;
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45 }
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46 /*
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47 * Calculate the effect it has on the poor guy.
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48 */
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49 if (obj == cur_weapon)
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50 cur_weapon = NULL;
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51 /*
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52 * Get rid of the thing
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53 */
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54 discardit = (obj->o_count == 1);
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55 leave_pack(obj, FALSE, FALSE);
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56 orig_obj = obj;
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57
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58 switch (obj->o_which)
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59 {
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60 case S_CONFUSE:
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61 /*
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62 * Scroll of monster confusion. Give him that power.
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63 */
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64 player.t_flags |= CANHUH;
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65 msg("your hands begin to glow %s", pick_color("red"));
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66 when S_ARMOR:
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67 if (cur_armor != NULL)
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68 {
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69 cur_armor->o_arm--;
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70 cur_armor->o_flags &= ~ISCURSED;
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71 msg("your armor glows %s for a moment", pick_color("silver"));
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72 }
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73 when S_HOLD:
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74 /*
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75 * Hold monster scroll. Stop all monsters within two spaces
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76 * from chasing after the hero.
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77 */
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78
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79 ch = 0;
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80 for (x = hero.x - 2; x <= hero.x + 2; x++)
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81 if (x >= 0 && x < NUMCOLS)
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82 for (y = hero.y - 2; y <= hero.y + 2; y++)
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83 if (y >= 0 && y <= NUMLINES - 1)
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84 if ((obj = moat(y, x)) != NULL && on(*obj, ISRUN))
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85 {
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86 obj->t_flags &= ~ISRUN;
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87 obj->t_flags |= ISHELD;
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88 ch++;
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89 }
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90 if (ch)
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91 {
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92 addmsg("the monster");
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93 if (ch > 1)
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94 addmsg("s around you");
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95 addmsg(" freeze");
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96 if (ch == 1)
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97 addmsg("s");
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98 endmsg();
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99 scr_info[S_HOLD].oi_know = TRUE;
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100 }
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101 else
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102 msg("you feel a strange sense of loss");
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103 when S_SLEEP:
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104 /*
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105 * Scroll which makes you fall asleep
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106 */
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