Fix a case where a spinlock was not being released.
[dragonfly.git] / games / rogue / hit.c
CommitLineData
984263bc
MD
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 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
1de703da
MD
35 *
36 * @(#)hit.c 8.1 (Berkeley) 5/31/93
37 * $FreeBSD: src/games/rogue/hit.c,v 1.6 1999/11/30 03:49:22 billf Exp $
38 * $DragonFly: src/games/rogue/hit.c,v 1.2 2003/06/17 04:25:24 dillon Exp $
984263bc
MD
39 */
40
984263bc
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41/*
42 * hit.c
43 *
44 * This source herein may be modified and/or distributed by anybody who
45 * so desires, with the following restrictions:
46 * 1.) No portion of this notice shall be removed.
47 * 2.) Credit shall not be taken for the creation of this source.
48 * 3.) This code is not to be traded, sold, or used for personal
49 * gain or profit.
50 *
51 */
52
53#include "rogue.h"
54
55object *fight_monster = 0;
56char hit_message[80] = "";
57
58extern short halluc, blind, cur_level;
59extern short add_strength, ring_exp, r_rings;
60extern boolean being_held, interrupted, wizard, con_mon;
61
62mon_hit(monster)
63object *monster;
64{
65 short damage, hit_chance;
66 const char *mn;
67 float minus;
68
69 if (fight_monster && (monster != fight_monster)) {
70 fight_monster = 0;
71 }
72 monster->trow = NO_ROOM;
73 if (cur_level >= (AMULET_LEVEL * 2)) {
74 hit_chance = 100;
75 } else {
76 hit_chance = monster->m_hit_chance;
77 hit_chance -= (((2 * rogue.exp) + (2 * ring_exp)) - r_rings);
78 }
79 if (wizard) {
80 hit_chance /= 2;
81 }
82 if (!fight_monster) {
83 interrupted = 1;
84 }
85 mn = mon_name(monster);
86
87 if (!rand_percent(hit_chance)) {
88 if (!fight_monster) {
89 sprintf(hit_message + strlen(hit_message), "the %s misses", mn);
90 message(hit_message, 1);
91 hit_message[0] = 0;
92 }
93 return;
94 }
95 if (!fight_monster) {
96 sprintf(hit_message + strlen(hit_message), "the %s hit", mn);
97 message(hit_message, 1);
98 hit_message[0] = 0;
99 }
100 if (!(monster->m_flags & STATIONARY)) {
101 damage = get_damage(monster->m_damage, 1);
102 if (cur_level >= (AMULET_LEVEL * 2)) {
103 minus = (float) ((AMULET_LEVEL * 2) - cur_level);
104 } else {
105 minus = (float) get_armor_class(rogue.armor) * 3.00;
106 minus = minus/100.00 * (float) damage;
107 }
108 damage -= (short) minus;
109 } else {
110 damage = monster->stationary_damage++;
111 }
112 if (wizard) {
113 damage /= 3;
114 }
115 if (damage > 0) {
116 rogue_damage(damage, monster, 0);
117 }
118 if (monster->m_flags & SPECIAL_HIT) {
119 special_hit(monster);
120 }
121}
122
123rogue_hit(monster, force_hit)
124object *monster;
125boolean force_hit;
126{
127 short damage, hit_chance;
128
129 if (monster) {
130 if (check_imitator(monster)) {
131 return;
132 }
133 hit_chance = force_hit ? 100 : get_hit_chance(rogue.weapon);
134
135 if (wizard) {
136 hit_chance *= 2;
137 }
138 if (!rand_percent(hit_chance)) {
139 if (!fight_monster) {
140 (void) strcpy(hit_message, "you miss ");
141 }
142 goto RET;
143 }
144 damage = get_weapon_damage(rogue.weapon);
145 if (wizard) {
146 damage *= 3;
147 }
148 if (con_mon) {
149 s_con_mon(monster);
150 }
151 if (mon_damage(monster, damage)) { /* still alive? */
152 if (!fight_monster) {
153 (void) strcpy(hit_message, "you hit ");
154 }
155 }
156RET: check_gold_seeker(monster);
157 wake_up(monster);
158 }
159}
160
161rogue_damage(d, monster, other)
162short d;
163object *monster;
164short other;
165{
166 if (d >= rogue.hp_current) {
167 rogue.hp_current = 0;
168 print_stats(STAT_HP);
169 killed_by(monster, other);
170 }
171 if (d > 0) {
172 rogue.hp_current -= d;
173 print_stats(STAT_HP);
174 }
175}
176
177get_damage(ds, r)
178const char *ds;
179boolean r;
180{
181 int i = 0, j, n, d, total = 0;
182
183 while (ds[i]) {
184 n = get_number(ds+i);
185 while (ds[i++] != 'd') ;
186 d = get_number(ds+i);
187 while ((ds[i] != '/') && ds[i]) i++;
188
189 for (j = 0; j < n; j++) {
190 if (r) {
191 total += get_rand(1, d);
192 } else {
193 total += d;
194 }
195 }
196 if (ds[i] == '/') {
197 i++;
198 }
199 }
200 return(total);
201}
202
203get_w_damage(obj)
204const object *obj;
205{
206 char new_damage[12];
207 int to_hit, damage;
208 int i = 0;
209
210 if ((!obj) || (obj->what_is != WEAPON)) {
211 return(-1);
212 }
213 to_hit = get_number(obj->damage) + obj->hit_enchant;
214 while (obj->damage[i++] != 'd') ;
215 damage = get_number(obj->damage + i) + obj->d_enchant;
216
217 sprintf(new_damage, "%dd%d", to_hit, damage);
218
219 return(get_damage(new_damage, 1));
220}
221
222get_number(s)
223const char *s;
224{
225 int i = 0;
226 int total = 0;
227
228 while ((s[i] >= '0') && (s[i] <= '9')) {
229 total = (10 * total) + (s[i] - '0');
230 i++;
231 }
232 return(total);
233}
234
235long
236lget_number(s)
237const char *s;
238{
239 short i = 0;
240 long total = 0;
241
242 while ((s[i] >= '0') && (s[i] <= '9')) {
243 total = (10 * total) + (s[i] - '0');
244 i++;
245 }
246 return(total);
247}
248
249to_hit(obj)
250const object *obj;
251{
252 if (!obj) {
253 return(1);
254 }
255 return(get_number(obj->damage) + obj->hit_enchant);
256}
257
258damage_for_strength()
259{
260 short strength;
261
262 strength = rogue.str_current + add_strength;
263
264 if (strength <= 6) {
265 return(strength-5);
266 }
267 if (strength <= 14) {
268 return(1);
269 }
270 if (strength <= 17) {
271 return(3);
272 }
273 if (strength <= 18) {
274 return(4);
275 }
276 if (strength <= 20) {
277 return(5);
278 }
279 if (strength <= 21) {
280 return(6);
281 }
282 if (strength <= 30) {
283 return(7);
284 }
285 return(8);
286}
287
288mon_damage(monster, damage)
289object *monster;
290short damage;
291{
292 const char *mn;
293 short row, col;
294
295 monster->hp_to_kill -= damage;
296
297 if (monster->hp_to_kill <= 0) {
298 row = monster->row;
299 col = monster->col;
300 dungeon[row][col] &= ~MONSTER;
301 mvaddch(row, col, (int) get_dungeon_char(row, col));
302
303 fight_monster = 0;
304 cough_up(monster);
305 mn = mon_name(monster);
306 sprintf(hit_message+strlen(hit_message), "defeated the %s", mn);
307 message(hit_message, 1);
308 hit_message[0] = 0;
309 add_exp(monster->kill_exp, 1);
310 take_from_pack(monster, &level_monsters);
311
312 if (monster->m_flags & HOLDS) {
313 being_held = 0;
314 }
315 free_object(monster);
316 return(0);
317 }
318 return(1);
319}
320
321fight(to_the_death)
322boolean to_the_death;
323{
324 short ch, c, d;
325 short row, col;
326 boolean first_miss = 1;
327 short possible_damage;
328 object *monster;
329
330 while (!is_direction(ch = rgetchar(), &d)) {
331 sound_bell();
332 if (first_miss) {
333 message("direction?", 0);
334 first_miss = 0;
335 }
336 }
337 check_message();
338 if (ch == CANCEL) {
339 return;
340 }
341 row = rogue.row; col = rogue.col;
342 get_dir_rc(d, &row, &col, 0);
343
344 c = mvinch(row, col);
345 if (((c < 'A') || (c > 'Z')) ||
346 (!can_move(rogue.row, rogue.col, row, col))) {
347 message("I see no monster there", 0);
348 return;
349 }
350 if (!(fight_monster = object_at(&level_monsters, row, col))) {
351 return;
352 }
353 if (!(fight_monster->m_flags & STATIONARY)) {
354 possible_damage = ((get_damage(fight_monster->m_damage, 0) * 2) / 3);
355 } else {
356 possible_damage = fight_monster->stationary_damage - 1;
357 }
358 while (fight_monster) {
359 (void) one_move_rogue(ch, 0);
360 if (((!to_the_death) && (rogue.hp_current <= possible_damage)) ||
361 interrupted || (!(dungeon[row][col] & MONSTER))) {
362 fight_monster = 0;
363 } else {
364 monster = object_at(&level_monsters, row, col);
365 if (monster != fight_monster) {
366 fight_monster = 0;
367 }
368 }
369 }
370}
371
372get_dir_rc(dir, row, col, allow_off_screen)
373short dir;
374short *row, *col;
375short allow_off_screen;
376{
377 switch(dir) {
378 case LEFT:
379 if (allow_off_screen || (*col > 0)) {
380 (*col)--;
381 }
382 break;
383 case DOWN:
384 if (allow_off_screen || (*row < (DROWS-2))) {
385 (*row)++;
386 }
387 break;
388 case UPWARD:
389 if (allow_off_screen || (*row > MIN_ROW)) {
390 (*row)--;
391 }
392 break;
393 case RIGHT:
394 if (allow_off_screen || (*col < (DCOLS-1))) {
395 (*col)++;
396 }
397 break;
398 case UPLEFT:
399 if (allow_off_screen || ((*row > MIN_ROW) && (*col > 0))) {
400 (*row)--;
401 (*col)--;
402 }
403 break;
404 case UPRIGHT:
405 if (allow_off_screen || ((*row > MIN_ROW) && (*col < (DCOLS-1)))) {
406 (*row)--;
407 (*col)++;
408 }
409 break;
410 case DOWNRIGHT:
411 if (allow_off_screen || ((*row < (DROWS-2)) && (*col < (DCOLS-1)))) {
412 (*row)++;
413 (*col)++;
414 }
415 break;
416 case DOWNLEFT:
417 if (allow_off_screen || ((*row < (DROWS-2)) && (*col > 0))) {
418 (*row)++;
419 (*col)--;
420 }
421 break;
422 }
423}
424
425get_hit_chance(weapon)
426const object *weapon;
427{
428 short hit_chance;
429
430 hit_chance = 40;
431 hit_chance += 3 * to_hit(weapon);
432 hit_chance += (((2 * rogue.exp) + (2 * ring_exp)) - r_rings);
433 return(hit_chance);
434}
435
436get_weapon_damage(weapon)
437const object *weapon;
438{
439 short damage;
440
441 damage = get_w_damage(weapon);
442 damage += damage_for_strength();
443 damage += ((((rogue.exp + ring_exp) - r_rings) + 1) / 2);
444 return(damage);
445}
446
447s_con_mon(monster)
448object *monster;
449{
450 if (con_mon) {
451 monster->m_flags |= CONFUSED;
452 monster->moves_confused += get_rand(12, 22);
453 message("the monster appears confused", 0);
454 con_mon = 0;
455 }
456}