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1.1 rubenllo 1: /*
2: * Read a scroll and let it happen
3: *
4: * @(#)scrolls.c 4.21 (Berkeley) 4/6/82
5: *
6: * Rogue: Exploring the Dungeons of Doom
7: * Copyright (C) 1980, 1981, 1982 Michael Toy, Ken Arnold and Glenn Wichman
8: * All rights reserved.
9: *
10: * See the file LICENSE.TXT for full copyright and licensing information.
11: */
12:
13: #include <curses.h>
14: #include <ctype.h>
15: #include "rogue.h"
16:
17: /*
18: * read_scroll:
19: * Read a scroll from the pack and do the appropriate thing
20: */
21: void
22: read_scroll(void)
23: {
24: register THING *obj;
25: register int y, x;
26: register char ch;
27: register THING *op;
28: register int index;
29: register bool discardit = FALSE;
30:
31: obj = get_item("read", SCROLL);
32: if (obj == NULL)
33: return;
34: if (obj->o_type != SCROLL)
35: {
36: if (!terse)
37: msg("there is nothing on it to read");
38: else
39: msg("nothing to read");
40: return;
41: }
42: msg("as you read the scroll, it vanishes");
43: /*
44: * Calculate the effect it has on the poor guy.
45: */
46: if (obj == cur_weapon)
47: cur_weapon = NULL;
48: switch (obj->o_which)
49: {
50: case S_CONFUSE:
51: /*
52: * Scroll of monster confusion. Give him that power.
53: */
54: player.t_flags |= CANHUH;
55: msg("your hands begin to glow red");
56: when S_ARMOR:
57: if (cur_armor != NULL)
58: {
59: cur_armor->o_ac--;
60: cur_armor->o_flags &= ~ISCURSED;
61: msg("your armor glows faintly for a moment");
62: }
63: when S_HOLD:
64: /*
65: * Hold monster scroll. Stop all monsters within two spaces
66: * from chasing after the hero.
67: */
68:
69: for (x = hero.x - 2; x <= hero.x + 2; x++)
70: if (x >= 0 && x < COLS)
71: for (y = hero.y - 2; y <= hero.y + 2; y++)
72: if (y >= 0 && y <= LINES - 1)
73: if ((op = moat(y, x)) != NULL)
74: {
75: op->t_flags &= ~ISRUN;
76: op->t_flags |= ISHELD;
77: }
78: when S_SLEEP:
79: /*
80: * Scroll which makes you fall asleep
81: */
82: s_know[S_SLEEP] = TRUE;
83: no_command += rnd(SLEEPTIME) + 4;
84: player.t_flags &= ~ISRUN;
85: msg("you fall asleep");
86: when S_CREATE:
87: /*
88: * Create a monster
89: * First look in a circle around him, next try his room
90: * otherwise give up
91: */
92: {
93: register bool appear = 0;
94: coord mp;
95:
96: /*
97: * Search for an open place
98: */
99: for (y = hero.y - 1; y <= hero.y + 1; y++)
100: for (x = hero.x - 1; x <= hero.x + 1; x++)
101: {
102: /*
103: * Don't put a monster in top of the player.
104: */
105: if (y == hero.y && x == hero.x)
106: continue;
107: /*
108: * Or anything else nasty
109: * Also avoid a mimic which is disguised as scroll
110: */
111: if (moat(y, x) == NULL && step_ok(ch = winat(y, x)))
112: {
113: if (ch == SCROLL
114: && find_obj(y, x)->o_which == S_SCARE)
115: continue;
116: if (rnd(++appear) == 0)
117: {
118: mp.y = y;
119: mp.x = x;
120: }
121: }
122: }
123: if (appear)
124: {
125: op = new_item();
126: new_monster(op, randmonster(FALSE), &mp);
127: }
128: else
129: msg("you hear a faint cry of anguish in the distance");
130: }
131: when S_IDENT:
132: /*
133: * Identify, let the rogue figure something out
134: */
135: s_know[S_IDENT] = TRUE;
136: msg("this scroll is an identify scroll");
137: whatis(TRUE);
138: when S_MAP:
139: /*
140: * Scroll of magic mapping.
141: */
142: s_know[S_MAP] = TRUE;
143: msg("oh, now this scroll has a map on it");
144: /*
145: * Take all the things we want to keep hidden out of the window
146: */
147: for (y = 1; y < LINES - 1; y++)
148: for (x = 0; x < COLS; x++)
149: {
150: index = INDEX(y, x);
151: switch (ch = _level[index])
152: {
153: case '-':
154: case '|':
155: if (!(_flags[index] & F_REAL))
156: {
157: ch = _level[index] = DOOR;
158: _flags[index] &= ~F_REAL;
159: }
160: case PASSAGE:
161: _flags[index] |= F_SEEN;
162: case DOOR:
163: case STAIRS:
164: if ((op = moat(y, x)) != NULL)
165: if (op->t_oldch == ' ')
166: op->t_oldch = ch;
167: break;
168: default:
169: ch = ' ';
170: }
171: if (ch != ' ')
172: mvaddch(y, x, ch);
173: }
174: when S_GFIND:
175: /*
176: * Potion of gold detection
177: */
178: ch = FALSE;
179: wclear(hw);
180: for (op = lvl_obj; op != NULL; op = next(op))
181: if (op->o_type == GOLD)
182: {
183: ch = TRUE;
184: mvwaddch(hw, op->o_pos.y, op->o_pos.x, GOLD);
185: }
186: if (ch)
187: {
188: s_know[S_GFIND] = TRUE;
189: show_win(hw,
190: "You begin to feel greedy and you sense gold.--More--");
191: }
192: else
193: msg("you feel a pull downward");
194: when S_TELEP:
195: /*
196: * Scroll of teleportation:
197: * Make him dissapear and reappear
198: */
199: {
200: register struct room *cur_room;
201:
202: cur_room = proom;
203: teleport();
204: if (cur_room != proom)
205: s_know[S_TELEP] = TRUE;
206: }
207: when S_ENCH:
208: if (cur_weapon == NULL || cur_weapon->o_type != WEAPON)
209: msg("you feel a strange sense of loss");
210: else
211: {
212: cur_weapon->o_flags &= ~ISCURSED;
213: if (rnd(2) == 0)
214: cur_weapon->o_hplus++;
215: else
216: cur_weapon->o_dplus++;
217: msg("your %s glows blue for a moment", w_names[cur_weapon->o_which]);
218: }
219: when S_SCARE:
220: /*
221: * Reading it is a mistake and produces laughter at the
222: * poor rogue's boo boo.
223: */
224: msg("you hear maniacal laughter in the distance");
225: when S_REMOVE:
226: if (cur_armor != NULL)
227: cur_armor->o_flags &= ~ISCURSED;
228: if (cur_weapon != NULL)
229: cur_weapon->o_flags &= ~ISCURSED;
230: if (cur_ring[LEFT] != NULL)
231: cur_ring[LEFT]->o_flags &= ~ISCURSED;
232: if (cur_ring[RIGHT] != NULL)
233: cur_ring[RIGHT]->o_flags &= ~ISCURSED;
234: msg("you feel as if somebody is watching over you");
235: when S_AGGR:
236: /*
237: * This scroll aggravates all the monsters on the current
238: * level and sets them running towards the hero
239: */
240: aggravate();
241: msg("you hear a high pitched humming noise");
242: when S_NOP:
243: msg("this scroll seems to be blank");
244: when S_GENOCIDE:
245: s_know[S_GENOCIDE] = TRUE;
246: msg("you have been granted the boon of genocide");
247: genocide();
248: otherwise:
249: msg("what a puzzling scroll!");
250: return;
251: }
252: look(TRUE); /* put the result of the scroll on the screen */
253: status();
254: /*
255: * Get rid of the thing
256: */
257: inpack--;
258: if (obj->o_count > 1)
259: obj->o_count--;
260: else
261: {
262: detach(pack, obj);
263: discardit = TRUE;
264: }
265:
266: call_it(s_know[obj->o_which], &s_guess[obj->o_which]);
267:
268: if (discardit)
269: discard(obj);
270: }