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annotate rogue4/scrolls.c @ 12:9535a08ddc39

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Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
author edwarj4
date Sat, 24 Oct 2009 16:52:52 +0000
parents
children 1b73a8641b37
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12
9535a08ddc39 Import Rogue 5.2 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 4.21 (Berkeley) 4/6/82
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
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5 *
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6 * Rogue: Exploring the Dungeons of Doom
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7 * Copyright (C) 1980, 1981, 1982 Michael Toy, Ken Arnold and Glenn Wichman
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
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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 read_scroll()
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22 {
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23 register THING *obj;
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24 register int y, x;
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25 register char ch;
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26 register THING *op;
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27 register int index;
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28 register bool discardit = FALSE;
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29
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30 obj = get_item("read", SCROLL);
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31 if (obj == NULL)
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32 return;
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33 if (obj->o_type != SCROLL)
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34 {
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35 if (!terse)
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36 msg("there is nothing on it to read");
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37 else
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38 msg("nothing to read");
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39 return;
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40 }
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41 msg("as you read the scroll, it vanishes");
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42 /*
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43 * Calculate the effect it has on the poor guy.
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44 */
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45 if (obj == cur_weapon)
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46 cur_weapon = NULL;
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47 switch (obj->o_which)
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48 {
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49 case S_CONFUSE:
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50 /*
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51 * Scroll of monster confusion. Give him that power.
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52 */
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53 player.t_flags |= CANHUH;
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54 msg("your hands begin to glow red");
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55 when S_ARMOR:
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56 if (cur_armor != NULL)
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57 {
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58 cur_armor->o_ac--;
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59 cur_armor->o_flags &= ~ISCURSED;
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60 msg("your armor glows faintly for a moment");
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61 }
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62 when S_HOLD:
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63 /*
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64 * Hold monster scroll. Stop all monsters within two spaces
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65 * from chasing after the hero.
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66 */
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67
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68 for (x = hero.x - 2; x <= hero.x + 2; x++)
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69 if (x >= 0 && x < COLS)
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70 for (y = hero.y - 2; y <= hero.y + 2; y++)
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71 if (y >= 0 && y <= LINES - 1)
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72 if ((op = moat(y, x)) != NULL)
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73 {
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74 op->t_flags &= ~ISRUN;
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75 op->t_flags |= ISHELD;
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76 }
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77 when S_SLEEP:
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78 /*
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79 * Scroll which makes you fall asleep
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80 */
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81 s_know[S_SLEEP] = TRUE;
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82 no_command += rnd(SLEEPTIME) + 4;
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83 player.t_flags &= ~ISRUN;
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84 msg("you fall asleep");
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85 when S_CREATE:
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86 /*
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87 * Create a monster
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88 * First look in a circle around him, next try his room
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89 * otherwise give up
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90 */
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91 {
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92 register bool appear = 0;
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93 coord mp;
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94
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95 /*
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96 * Search for an open place
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97 */
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98 for (y = hero.y - 1; y <= hero.y + 1; y++)
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99 for (x = hero.x - 1; x <= hero.x + 1; x++)
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100 {
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101 /*
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102 * Don't put a monster in top of the player.
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103 */
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104 if (y == hero.y && x == hero.x)
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105 continue;
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106 /*
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107 * Or anything else nasty
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108 * Also avoid a mimic which is disguised as scroll
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109 */
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110 if (moat(y, x) == NULL && step_ok(ch = winat(y, x)))
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111 {
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112 if (ch == SCROLL
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113 && find_obj(y, x)->o_which == S_SCARE)
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114 continue;
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115 if (rnd(++appear) == 0)
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116 {
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117 mp.y = y;
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118 mp.x = x;
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119 }
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120 }
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121 }
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122 if (appear)
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123 {
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124 op = new_item();
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125 new_monster(op, randmonster(FALSE), &mp);
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126 }
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127 else
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128 msg("you hear a faint cry of anguish in the distance");
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129 }
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130 when S_IDENT:
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131 /*
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132 * Identify, let the rogue figure something out
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133 */
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134 s_know[S_IDENT] = TRUE;
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135 msg("this scroll is an identify scroll");
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136 whatis(TRUE);
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137 when S_MAP:
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138 /*
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139 * Scroll of magic mapping.
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140 */
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141 s_know[S_MAP] = TRUE;
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142 msg("oh, now this scroll has a map on it");
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143 /*
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144 * Take all the things we want to keep hidden out of the window
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145 */
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146 for (y = 1; y < LINES - 1; y++)
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147 for (x = 0; x < COLS; x++)
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148 {
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149 index = INDEX(y, x);
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150 switch (ch = _level[index])
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151 {
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152 case '-':
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153 case '|':
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parents:
diff changeset
154 if (!(_flags[index] & F_REAL))
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
155 {
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
156 ch = _level[index] = DOOR;
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
157 _flags[index] &= ~F_REAL;
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
158 }
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
159 case PASSAGE:
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
160 _flags[index] |= F_SEEN;
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
161 case DOOR:
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
162 case STAIRS:
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
163 if ((op = moat(y, x)) != NULL)
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
164 if (op->t_oldch == ' ')
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
165 op->t_oldch = ch;
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
166 break;
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
167 default:
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
168 ch = ' ';
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
169 }
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
170 if (ch != ' ')
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
171 mvaddch(y, x, ch);
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
172 }
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
173 when S_GFIND:
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
174 /*
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
175 * Potion of gold detection
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
176 */
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
177 ch = FALSE;
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
178 wclear(hw);
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
179 for (op = lvl_obj; op != NULL; op = next(op))
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
180 if (op->o_type == GOLD)
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
181 {
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
182 ch = TRUE;
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
183 mvwaddch(hw, op->o_pos.y, op->o_pos.x, GOLD);
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
184 }
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
185 if (ch)
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
186 {
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
187 s_know[S_GFIND] = TRUE;
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
188 show_win(hw,
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
189 "You begin to feel greedy and you sense gold.--More--");
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
190 }
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
191 else
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
192 msg("you feel a pull downward");
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
193 when S_TELEP:
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
194 /*
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
195 * Scroll of teleportation:
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
196 * Make him dissapear and reappear
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
197 */
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
198 {
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
199 register struct room *cur_room;
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
200
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
201 cur_room = proom;
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
202 teleport();
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
203 if (cur_room != proom)
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
204 s_know[S_TELEP] = TRUE;
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
205 }
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
206 when S_ENCH:
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
207 if (cur_weapon == NULL || cur_weapon->o_type != WEAPON)
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
208 msg("you feel a strange sense of loss");
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
209 else
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
210 {
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
211 cur_weapon->o_flags &= ~ISCURSED;
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
212 if (rnd(2) == 0)
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
213 cur_weapon->o_hplus++;
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
214 else
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
215 cur_weapon->o_dplus++;
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
216 msg("your %s glows blue for a moment", w_names[cur_weapon->o_which]);
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
217 }
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
218 when S_SCARE:
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
219 /*
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
220 * Reading it is a mistake and produces laughter at the
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
221 * poor rogue's boo boo.
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
222 */
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
223 msg("you hear maniacal laughter in the distance");
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
224 when S_REMOVE:
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
225 if (cur_armor != NULL)
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
226 cur_armor->o_flags &= ~ISCURSED;
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
227 if (cur_weapon != NULL)
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
228 cur_weapon->o_flags &= ~ISCURSED;
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
229 if (cur_ring[LEFT] != NULL)
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
230 cur_ring[LEFT]->o_flags &= ~ISCURSED;
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
231 if (cur_ring[RIGHT] != NULL)
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
232 cur_ring[RIGHT]->o_flags &= ~ISCURSED;
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
233 msg("you feel as if somebody is watching over you");
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
234 when S_AGGR:
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
235 /*
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
236 * This scroll aggravates all the monsters on the current
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
237 * level and sets them running towards the hero
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
238 */
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
239 aggravate();
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
240 msg("you hear a high pitched humming noise");
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
241 when S_NOP:
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
242 msg("this scroll seems to be blank");
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
243 when S_GENOCIDE:
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
244 s_know[S_GENOCIDE] = TRUE;
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
245 msg("you have been granted the boon of genocide");
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
246 genocide();
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
247 otherwise:
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
248 msg("what a puzzling scroll!");
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
249 return;
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
250 }
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
251 look(TRUE); /* put the result of the scroll on the screen */
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
252 status();
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
253 /*
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
254 * Get rid of the thing
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
255 */
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
256 inpack--;
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
257 if (obj->o_count > 1)
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
258 obj->o_count--;
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
259 else
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
260 {
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
261 detach(pack, obj);
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
262 discardit = TRUE;
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
263 }
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
264
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
265 call_it(s_know[obj->o_which], &s_guess[obj->o_which]);
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
266
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
267 if (discardit)
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
268 discard(obj);
9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
269 }