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zap.c revision 1.4 
      1 /*	$NetBSD: zap.c,v 1.4 1997/10/12 11:46:15 lukem Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1988, 1993
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * This code is derived from software contributed to Berkeley by
      8  * Timothy C. Stoehr.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *	This product includes software developed by the University of
     21  *	California, Berkeley and its contributors.
     22  * 4. Neither the name of the University nor the names of its contributors
     23  *    may be used to endorse or promote products derived from this software
     24  *    without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     36  * SUCH DAMAGE.
     37  */
     38 
     39 #include <sys/cdefs.h>
     40 #ifndef lint
     41 #if 0
     42 static char sccsid[] = "@(#)zap.c	8.1 (Berkeley) 5/31/93";
     43 #else
     44 __RCSID("$NetBSD: zap.c,v 1.4 1997/10/12 11:46:15 lukem Exp $");
     45 #endif
     46 #endif /* not lint */
     47 
     48 /*
     49  * zap.c
     50  *
     51  * This source herein may be modified and/or distributed by anybody who
     52  * so desires, with the following restrictions:
     53  *    1.)  No portion of this notice shall be removed.
     54  *    2.)  Credit shall not be taken for the creation of this source.
     55  *    3.)  This code is not to be traded, sold, or used for personal
     56  *         gain or profit.
     57  *
     58  */
     59 
     60 #include "rogue.h"
     61 
     62 boolean wizard = 0;
     63 
     64 void
     65 zapp()
     66 {
     67 	short wch;
     68 	boolean first_miss = 1;
     69 	object *wand;
     70 	short dir, d, row, col;
     71 	object *monster;
     72 
     73 	while (!is_direction(dir = rgetchar(), &d)) {
     74 		sound_bell();
     75 		if (first_miss) {
     76 			message("direction? ", 0);
     77 			first_miss = 0;
     78 		}
     79 	}
     80 	check_message();
     81 	if (dir == CANCEL) {
     82 		return;
     83 	}
     84 	if ((wch = pack_letter("zap with what?", WAND)) == CANCEL) {
     85 		return;
     86 	}
     87 	check_message();
     88 
     89 	if (!(wand = get_letter_object(wch))) {
     90 		message("no such item.", 0);
     91 		return;
     92 	}
     93 	if (wand->what_is != WAND) {
     94 		message("you can't zap with that", 0);
     95 		return;
     96 	}
     97 	if (wand->class <= 0) {
     98 		message("nothing happens", 0);
     99 	} else {
    100 		wand->class--;
    101 		row = rogue.row; col = rogue.col;
    102 		if ((wand->which_kind == COLD) || (wand->which_kind == FIRE)) {
    103 			bounce((short) wand->which_kind, d, row, col, 0);
    104 		} else {
    105 			monster = get_zapped_monster(d, &row, &col);
    106 			if (wand->which_kind == DRAIN_LIFE) {
    107 				wdrain_life(monster);
    108 			} else if (monster) {
    109 				wake_up(monster);
    110 				s_con_mon(monster);
    111 				zap_monster(monster, wand->which_kind);
    112 				relight();
    113 			}
    114 		}
    115 	}
    116 	(void) reg_move();
    117 }
    118 
    119 object *
    120 get_zapped_monster(dir, row, col)
    121 	short dir;
    122 	short *row, *col;
    123 {
    124 	short orow, ocol;
    125 
    126 	for (;;) {
    127 		orow = *row; ocol = *col;
    128 		get_dir_rc(dir, row, col, 0);
    129 		if (((*row == orow) && (*col == ocol)) ||
    130 		   (dungeon[*row][*col] & (HORWALL | VERTWALL)) ||
    131 		   (dungeon[*row][*col] == NOTHING)) {
    132 			return(0);
    133 		}
    134 		if (dungeon[*row][*col] & MONSTER) {
    135 			if (!imitating(*row, *col)) {
    136 				return(object_at(&level_monsters, *row, *col));
    137 			}
    138 		}
    139 	}
    140 }
    141 
    142 void
    143 zap_monster(monster, kind)
    144 	object *monster;
    145 	unsigned short kind;
    146 {
    147 	short row, col;
    148 	object *nm;
    149 	short tc;
    150 
    151 	row = monster->row;
    152 	col = monster->col;
    153 
    154 	switch(kind) {
    155 	case SLOW_MONSTER:
    156 		if (monster->m_flags & HASTED) {
    157 			monster->m_flags &= (~HASTED);
    158 		} else {
    159 			monster->slowed_toggle = 0;
    160 			monster->m_flags |= SLOWED;
    161 		}
    162 		break;
    163 	case HASTE_MONSTER:
    164 		if (monster->m_flags & SLOWED) {
    165 			monster->m_flags &= (~SLOWED);
    166 		} else {
    167 			monster->m_flags |= HASTED;
    168 		}
    169 		break;
    170 	case TELE_AWAY:
    171 		tele_away(monster);
    172 		break;
    173 	case INVISIBILITY:
    174 		monster->m_flags |= INVISIBLE;
    175 		break;
    176 	case POLYMORPH:
    177 		if (monster->m_flags & HOLDS) {
    178 			being_held = 0;
    179 		}
    180 		nm = monster->next_monster;
    181 		tc = monster->trail_char;
    182 		(void) gr_monster(monster, get_rand(0, MONSTERS-1));
    183 		monster->row = row;
    184 		monster->col = col;
    185 		monster->next_monster = nm;
    186 		monster->trail_char = tc;
    187 		if (!(monster->m_flags & IMITATES)) {
    188 			wake_up(monster);
    189 		}
    190 		break;
    191 	case MAGIC_MISSILE:
    192 		rogue_hit(monster, 1);
    193 		break;
    194 	case CANCELLATION:
    195 		if (monster->m_flags & HOLDS) {
    196 			being_held = 0;
    197 		}
    198 		if (monster->m_flags & STEALS_ITEM) {
    199 			monster->drop_percent = 0;
    200 		}
    201 		monster->m_flags &= (~(FLIES | FLITS | SPECIAL_HIT | INVISIBLE |
    202 			FLAMES | IMITATES | CONFUSES | SEEKS_GOLD | HOLDS));
    203 		break;
    204 	case DO_NOTHING:
    205 		message("nothing happens", 0);
    206 		break;
    207 	}
    208 }
    209 
    210 void
    211 tele_away(monster)
    212 	object *monster;
    213 {
    214 	short row, col;
    215 
    216 	if (monster->m_flags & HOLDS) {
    217 		being_held = 0;
    218 	}
    219 	gr_row_col(&row, &col, (FLOOR | TUNNEL | STAIRS | OBJECT));
    220 	mvaddch(monster->row, monster->col, monster->trail_char);
    221 	dungeon[monster->row][monster->col] &= ~MONSTER;
    222 	monster->row = row; monster->col = col;
    223 	dungeon[row][col] |= MONSTER;
    224 	monster->trail_char = mvinch(row, col);
    225 	if (detect_monster || rogue_can_see(row, col)) {
    226 		mvaddch(row, col, gmc(monster));
    227 	}
    228 }
    229 
    230 void
    231 wizardize()
    232 {
    233 	char buf[100];
    234 
    235 	if (wizard) {
    236 		wizard = 0;
    237 		message("not wizard anymore", 0);
    238 	} else {
    239 		if (get_input_line("wizard's password:", "", buf, "", 0, 0)) {
    240 			(void) xxx(1);
    241 			xxxx(buf, strlen(buf));
    242 			if (!strncmp(buf, "\247\104\126\272\115\243\027", 7)) {
    243 				wizard = 1;
    244 				score_only = 1;
    245 				message("Welcome, mighty wizard!", 0);
    246 			} else {
    247 				message("sorry", 0);
    248 			}
    249 		}
    250 	}
    251 }
    252 
    253 void
    254 wdrain_life(monster)
    255 	object *monster;
    256 {
    257 	short hp;
    258 	object *lmon, *nm;
    259 
    260 	hp = rogue.hp_current / 3;
    261 	rogue.hp_current = (rogue.hp_current + 1) / 2;
    262 
    263 	if (cur_room >= 0) {
    264 		lmon = level_monsters.next_monster;
    265 		while (lmon) {
    266 			nm = lmon->next_monster;
    267 			if (get_room_number(lmon->row, lmon->col) == cur_room) {
    268 				wake_up(lmon);
    269 				(void) mon_damage(lmon, hp);
    270 			}
    271 			lmon = nm;
    272 		}
    273 	} else {
    274 		if (monster) {
    275 			wake_up(monster);
    276 			(void) mon_damage(monster, hp);
    277 		}
    278 	}
    279 	print_stats(STAT_HP);
    280 	relight();
    281 }
    282 
    283 void
    284 bounce(ball, dir, row, col, r)
    285 	short ball, dir, row, col, r;
    286 {
    287 	short orow, ocol;
    288 	char buf[DCOLS], *s;
    289 	short i, ch, new_dir = -1, damage;
    290 	static short btime;
    291 
    292 	if (++r == 1) {
    293 		btime = get_rand(3, 6);
    294 	} else if (r > btime) {
    295 		return;
    296 	}
    297 
    298 	if (ball == FIRE) {
    299 		s = "fire";
    300 	} else {
    301 		s = "ice";
    302 	}
    303 	if (r > 1) {
    304 		sprintf(buf, "the %s bounces", s);
    305 		message(buf, 0);
    306 	}
    307 	orow = row;
    308 	ocol = col;
    309 	do {
    310 		ch = mvinch(orow, ocol);
    311 		standout();
    312 		mvaddch(orow, ocol, ch);
    313 		get_dir_rc(dir, &orow, &ocol, 1);
    314 	} while (!(	(ocol <= 0) ||
    315 				(ocol >= DCOLS-1) ||
    316 				(dungeon[orow][ocol] == NOTHING) ||
    317 				(dungeon[orow][ocol] & MONSTER) ||
    318 				(dungeon[orow][ocol] & (HORWALL | VERTWALL)) ||
    319 				((orow == rogue.row) && (ocol == rogue.col))));
    320 	standend();
    321 	refresh();
    322 	do {
    323 		orow = row;
    324 		ocol = col;
    325 		ch = mvinch(row, col);
    326 		mvaddch(row, col, ch);
    327 		get_dir_rc(dir, &row, &col, 1);
    328 	} while (!(	(col <= 0) ||
    329 				(col >= DCOLS-1) ||
    330 				(dungeon[row][col] == NOTHING) ||
    331 				(dungeon[row][col] & MONSTER) ||
    332 				(dungeon[row][col] & (HORWALL | VERTWALL)) ||
    333 				((row == rogue.row) && (col == rogue.col))));
    334 
    335 	if (dungeon[row][col] & MONSTER) {
    336 		object *monster;
    337 
    338 		monster = object_at(&level_monsters, row, col);
    339 
    340 		wake_up(monster);
    341 		if (rand_percent(33)) {
    342 			sprintf(buf, "the %s misses the %s", s, mon_name(monster));
    343 			message(buf, 0);
    344 			goto ND;
    345 		}
    346 		if (ball == FIRE) {
    347 			if (!(monster->m_flags & RUSTS)) {
    348 				if (monster->m_flags & FREEZES) {
    349 					damage = monster->hp_to_kill;
    350 				} else if (monster->m_flags & FLAMES) {
    351 					damage = (monster->hp_to_kill / 10) + 1;
    352 				} else {
    353 					damage = get_rand((rogue.hp_current / 3), rogue.hp_max);
    354 				}
    355 			} else {
    356 				damage = (monster->hp_to_kill / 2) + 1;
    357 			}
    358 			sprintf(buf, "the %s hits the %s", s, mon_name(monster));
    359 			message(buf, 0);
    360 			(void) mon_damage(monster, damage);
    361 		} else {
    362 			damage = -1;
    363 			if (!(monster->m_flags & FREEZES)) {
    364 				if (rand_percent(33)) {
    365 					message("the monster is frozen", 0);
    366 					monster->m_flags |= (ASLEEP | NAPPING);
    367 					monster->nap_length = get_rand(3, 6);
    368 				} else {
    369 					damage = rogue.hp_current / 4;
    370 				}
    371 			} else {
    372 				damage = -2;
    373 			}
    374 			if (damage != -1) {
    375 				sprintf(buf, "the %s hits the %s", s, mon_name(monster));
    376 				message(buf, 0);
    377 				(void) mon_damage(monster, damage);
    378 			}
    379 		}
    380 	} else if ((row == rogue.row) && (col == rogue.col)) {
    381 		if (rand_percent(10 + (3 * get_armor_class(rogue.armor)))) {
    382 			sprintf(buf, "the %s misses", s);
    383 			message(buf, 0);
    384 			goto ND;
    385 		} else {
    386 			damage = get_rand(3, (3 * rogue.exp));
    387 			if (ball == FIRE) {
    388 				damage = (damage * 3) / 2;
    389 				damage -= get_armor_class(rogue.armor);
    390 			}
    391 			sprintf(buf, "the %s hits", s);
    392 			rogue_damage(damage, (object *) 0,
    393 					((ball == FIRE) ? KFIRE : HYPOTHERMIA));
    394 			message(buf, 0);
    395 		}
    396 	} else {
    397 		short nrow, ncol;
    398 
    399 ND:		for (i = 0; i < 10; i++) {
    400 			dir = get_rand(0, DIRS-1);
    401 			nrow = orow;
    402 			ncol = ocol;
    403 			get_dir_rc(dir, &nrow, &ncol, 1);
    404 			if (((ncol >= 0) && (ncol <= DCOLS-1)) &&
    405 				(dungeon[nrow][ncol] != NOTHING) &&
    406 				(!(dungeon[nrow][ncol] & (VERTWALL | HORWALL)))) {
    407 				new_dir = dir;
    408 				break;
    409 			}
    410 		}
    411 		if (new_dir != -1) {
    412 			bounce(ball, new_dir, orow, ocol, r);
    413 		}
    414 	}
    415 }
    416