xref: /original-bsd/games/rogue/ring.c (revision a3d56443)
1 /*
2  * Copyright (c) 1988, 1993
3  *	The Regents of the University of California.  All rights reserved.
4  *
5  * This code is derived from software contributed to Berkeley by
6  * Timothy C. Stoehr.
7  *
8  * %sccs.include.redist.c%
9  */
10 
11 #ifndef lint
12 static char sccsid[] = "@(#)ring.c	8.1 (Berkeley) 05/31/93";
13 #endif /* not lint */
14 
15 /*
16  * ring.c
17  *
18  * This source herein may be modified and/or distributed by anybody who
19  * so desires, with the following restrictions:
20  *    1.)  No portion of this notice shall be removed.
21  *    2.)  Credit shall not be taken for the creation of this source.
22  *    3.)  This code is not to be traded, sold, or used for personal
23  *         gain or profit.
24  *
25  */
26 
27 #include "rogue.h"
28 
29 char *left_or_right = "left or right hand?";
30 char *no_ring = "there's no ring on that hand";
31 short stealthy;
32 short r_rings;
33 short add_strength;
34 short e_rings;
35 short regeneration;
36 short ring_exp;
37 short auto_search;
38 boolean r_teleport;
39 boolean r_see_invisible;
40 boolean sustain_strength;
41 boolean maintain_armor;
42 
43 extern char *curse_message;
44 extern boolean wizard;
45 
46 put_on_ring()
47 {
48 	short ch;
49 	char desc[DCOLS];
50 	object *ring;
51 
52 	if (r_rings == 2) {
53 		message("wearing two rings already", 0);
54 		return;
55 	}
56 	if ((ch = pack_letter("put on what?", RING)) == CANCEL) {
57 		return;
58 	}
59 	if (!(ring = get_letter_object(ch))) {
60 		message("no such item.", 0);
61 		return;
62 	}
63 	if (!(ring->what_is & RING)) {
64 		message("that's not a ring", 0);
65 		return;
66 	}
67 	if (ring->in_use_flags & (ON_LEFT_HAND | ON_RIGHT_HAND)) {
68 		message("that ring is already being worn", 0);
69 		return;
70 	}
71 	if (r_rings == 1) {
72 		ch = (rogue.left_ring ? 'r' : 'l');
73 	} else {
74 		message(left_or_right, 0);
75 		do {
76 			ch = rgetchar();
77 		} while ((ch != CANCEL) && (ch != 'l') && (ch != 'r') && (ch != '\n') &&
78 			 	(ch != '\r'));
79 	}
80 	if ((ch != 'l') && (ch != 'r')) {
81 		check_message();
82 		return;
83 	}
84 	if (((ch == 'l') && rogue.left_ring)||((ch == 'r') && rogue.right_ring)) {
85 		check_message();
86 		message("there's already a ring on that hand", 0);
87 		return;
88 	}
89 	if (ch == 'l') {
90 		do_put_on(ring, 1);
91 	} else {
92 		do_put_on(ring, 0);
93 	}
94 	ring_stats(1);
95 	check_message();
96 	get_desc(ring, desc);
97 	message(desc, 0);
98 	(void) reg_move();
99 }
100 
101 /*
102  * Do not call ring_stats() from within do_put_on().  It will cause
103  * serious problems when do_put_on() is called from read_pack() in restore().
104  */
105 
106 do_put_on(ring, on_left)
107 object *ring;
108 boolean on_left;
109 {
110 	if (on_left) {
111 		ring->in_use_flags |= ON_LEFT_HAND;
112 		rogue.left_ring = ring;
113 	} else {
114 		ring->in_use_flags |= ON_RIGHT_HAND;
115 		rogue.right_ring = ring;
116 	}
117 }
118 
119 remove_ring()
120 {
121 	boolean left = 0, right = 0;
122 	short ch;
123 	char buf[DCOLS];
124 	object *ring;
125 
126 	if (r_rings == 0) {
127 		inv_rings();
128 	} else if (rogue.left_ring && !rogue.right_ring) {
129 		left = 1;
130 	} else if (!rogue.left_ring && rogue.right_ring) {
131 		right = 1;
132 	} else {
133 		message(left_or_right, 0);
134 		do {
135 			ch = rgetchar();
136 		} while ((ch != CANCEL) && (ch != 'l') && (ch != 'r') &&
137 			(ch != '\n') && (ch != '\r'));
138 		left = (ch == 'l');
139 		right = (ch == 'r');
140 		check_message();
141 	}
142 	if (left || right) {
143 		if (left) {
144 			if (rogue.left_ring) {
145 				ring = rogue.left_ring;
146 			} else {
147 				message(no_ring, 0);
148 			}
149 		} else {
150 			if (rogue.right_ring) {
151 				ring = rogue.right_ring;
152 			} else {
153 				message(no_ring, 0);
154 			}
155 		}
156 		if (ring->is_cursed) {
157 			message(curse_message, 0);
158 		} else {
159 			un_put_on(ring);
160 			(void) strcpy(buf, "removed ");
161 			get_desc(ring, buf + 8);
162 			message(buf, 0);
163 			(void) reg_move();
164 		}
165 	}
166 }
167 
168 un_put_on(ring)
169 object *ring;
170 {
171 	if (ring && (ring->in_use_flags & ON_LEFT_HAND)) {
172 		ring->in_use_flags &= (~ON_LEFT_HAND);
173 		rogue.left_ring = 0;
174 	} else if (ring && (ring->in_use_flags & ON_RIGHT_HAND)) {
175 		ring->in_use_flags &= (~ON_RIGHT_HAND);
176 		rogue.right_ring = 0;
177 	}
178 	ring_stats(1);
179 }
180 
181 gr_ring(ring, assign_wk)
182 object *ring;
183 boolean assign_wk;
184 {
185 	ring->what_is = RING;
186 	if (assign_wk) {
187 		ring->which_kind = get_rand(0, (RINGS - 1));
188 	}
189 	ring->class = 0;
190 
191 	switch(ring->which_kind) {
192 	/*
193 	case STEALTH:
194 		break;
195 	case SLOW_DIGEST:
196 		break;
197 	case REGENERATION:
198 		break;
199 	case R_SEE_INVISIBLE:
200 		break;
201 	case SUSTAIN_STRENGTH:
202 		break;
203 	case R_MAINTAIN_ARMOR:
204 		break;
205 	case SEARCHING:
206 		break;
207 	*/
208 	case R_TELEPORT:
209 		ring->is_cursed = 1;
210 		break;
211 	case ADD_STRENGTH:
212 	case DEXTERITY:
213 		while ((ring->class = (get_rand(0, 4) - 2)) == 0) ;
214 		ring->is_cursed = (ring->class < 0);
215 		break;
216 	case ADORNMENT:
217 		ring->is_cursed = coin_toss();
218 		break;
219 	}
220 }
221 
222 inv_rings()
223 {
224 	char buf[DCOLS];
225 
226 	if (r_rings == 0) {
227 		message("not wearing any rings", 0);
228 	} else {
229 		if (rogue.left_ring) {
230 			get_desc(rogue.left_ring, buf);
231 			message(buf, 0);
232 		}
233 		if (rogue.right_ring) {
234 			get_desc(rogue.right_ring, buf);
235 			message(buf, 0);
236 		}
237 	}
238 	if (wizard) {
239 		sprintf(buf, "ste %d, r_r %d, e_r %d, r_t %d, s_s %d, a_s %d, reg %d, r_e %d, s_i %d, m_a %d, aus %d",
240 			stealthy, r_rings, e_rings, r_teleport, sustain_strength,
241 			add_strength, regeneration, ring_exp, r_see_invisible,
242 			maintain_armor, auto_search);
243 		message(buf, 0);
244 	}
245 }
246 
247 ring_stats(pr)
248 boolean pr;
249 {
250 	short i;
251 	object *ring;
252 
253 	stealthy = 0;
254 	r_rings = 0;
255 	e_rings = 0;
256 	r_teleport = 0;
257 	sustain_strength = 0;
258 	add_strength = 0;
259 	regeneration = 0;
260 	ring_exp = 0;
261 	r_see_invisible = 0;
262 	maintain_armor = 0;
263 	auto_search = 0;
264 
265 	for (i = 0; i < 2; i++) {
266 		if (!(ring = ((i == 0) ? rogue.left_ring : rogue.right_ring))) {
267 			continue;
268 		}
269 		r_rings++;
270 		e_rings++;
271 		switch(ring->which_kind) {
272 		case STEALTH:
273 			stealthy++;
274 			break;
275 		case R_TELEPORT:
276 			r_teleport = 1;
277 			break;
278 		case REGENERATION:
279 			regeneration++;
280 			break;
281 		case SLOW_DIGEST:
282 			e_rings -= 2;
283 			break;
284 		case ADD_STRENGTH:
285 			add_strength += ring->class;
286 			break;
287 		case SUSTAIN_STRENGTH:
288 			sustain_strength = 1;
289 			break;
290 		case DEXTERITY:
291 			ring_exp += ring->class;
292 			break;
293 		case ADORNMENT:
294 			break;
295 		case R_SEE_INVISIBLE:
296 			r_see_invisible = 1;
297 			break;
298 		case MAINTAIN_ARMOR:
299 			maintain_armor = 1;
300 			break;
301 		case SEARCHING:
302 			auto_search += 2;
303 			break;
304 		}
305 	}
306 	if (pr) {
307 		print_stats(STAT_STRENGTH);
308 		relight();
309 	}
310 }
311