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zap.c revision 1.1 
      1 /*
      2  * Copyright (c) 1988 The Regents of the University of California.
      3  * 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.
     35  */
     36 
     37 #ifndef lint
     38 static char sccsid[] = "@(#)zap.c	5.3 (Berkeley) 6/1/90";
     39 #endif /* not lint */
     40 
     41 /*
     42  * zap.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 
     55 boolean wizard = 0;
     56 
     57 extern boolean being_held, score_only, detect_monster;
     58 extern short cur_room;
     59 
     60 zapp()
     61 {
     62 	short wch;
     63 	boolean first_miss = 1;
     64 	object *wand;
     65 	short dir, d, row, col;
     66 	object *monster;
     67 
     68 	while (!is_direction(dir = rgetchar(), &d)) {
     69 		sound_bell();
     70 		if (first_miss) {
     71 			message("direction? ", 0);
     72 			first_miss = 0;
     73 		}
     74 	}
     75 	check_message();
     76 	if (dir == CANCEL) {
     77 		return;
     78 	}
     79 	if ((wch = pack_letter("zap with what?", WAND)) == CANCEL) {
     80 		return;
     81 	}
     82 	check_message();
     83 
     84 	if (!(wand = get_letter_object(wch))) {
     85 		message("no such item.", 0);
     86 		return;
     87 	}
     88 	if (wand->what_is != WAND) {
     89 		message("you can't zap with that", 0);
     90 		return;
     91 	}
     92 	if (wand->class <= 0) {
     93 		message("nothing happens", 0);
     94 	} else {
     95 		wand->class--;
     96 		row = rogue.row; col = rogue.col;
     97 		if ((wand->which_kind == COLD) || (wand->which_kind == FIRE)) {
     98 			bounce((short) wand->which_kind, d, row, col, 0);
     99 		} else {
    100 			monster = get_zapped_monster(d, &row, &col);
    101 			if (wand->which_kind == DRAIN_LIFE) {
    102 				wdrain_life(monster);
    103 			} else if (monster) {
    104 				wake_up(monster);
    105 				s_con_mon(monster);
    106 				zap_monster(monster, wand->which_kind);
    107 				relight();
    108 			}
    109 		}
    110 	}
    111 	(void) reg_move();
    112 }
    113 
    114 object *
    115 get_zapped_monster(dir, row, col)
    116 short dir;
    117 short *row, *col;
    118 {
    119 	short orow, ocol;
    120 
    121 	for (;;) {
    122 		orow = *row; ocol = *col;
    123 		get_dir_rc(dir, row, col, 0);
    124 		if (((*row == orow) && (*col == ocol)) ||
    125 		   (dungeon[*row][*col] & (HORWALL | VERTWALL)) ||
    126 		   (dungeon[*row][*col] == NOTHING)) {
    127 			return(0);
    128 		}
    129 		if (dungeon[*row][*col] & MONSTER) {
    130 			if (!imitating(*row, *col)) {
    131 				return(object_at(&level_monsters, *row, *col));
    132 			}
    133 		}
    134 	}
    135 }
    136 
    137 zap_monster(monster, kind)
    138 object *monster;
    139 unsigned short kind;
    140 {
    141 	short row, col;
    142 	object *nm;
    143 	short tc;
    144 
    145 	row = monster->row;
    146 	col = monster->col;
    147 
    148 	switch(kind) {
    149 	case SLOW_MONSTER:
    150 		if (monster->m_flags & HASTED) {
    151 			monster->m_flags &= (~HASTED);
    152 		} else {
    153 			monster->slowed_toggle = 0;
    154 			monster->m_flags |= SLOWED;
    155 		}
    156 		break;
    157 	case HASTE_MONSTER:
    158 		if (monster->m_flags & SLOWED) {
    159 			monster->m_flags &= (~SLOWED);
    160 		} else {
    161 			monster->m_flags |= HASTED;
    162 		}
    163 		break;
    164 	case TELE_AWAY:
    165 		tele_away(monster);
    166 		break;
    167 	case INVISIBILITY:
    168 		monster->m_flags |= INVISIBLE;
    169 		break;
    170 	case POLYMORPH:
    171 		if (monster->m_flags & HOLDS) {
    172 			being_held = 0;
    173 		}
    174 		nm = monster->next_monster;
    175 		tc = monster->trail_char;
    176 		(void) gr_monster(monster, get_rand(0, MONSTERS-1));
    177 		monster->row = row;
    178 		monster->col = col;
    179 		monster->next_monster = nm;
    180 		monster->trail_char = tc;
    181 		if (!(monster->m_flags & IMITATES)) {
    182 			wake_up(monster);
    183 		}
    184 		break;
    185 	case MAGIC_MISSILE:
    186 		rogue_hit(monster, 1);
    187 		break;
    188 	case CANCELLATION:
    189 		if (monster->m_flags & HOLDS) {
    190 			being_held = 0;
    191 		}
    192 		if (monster->m_flags & STEALS_ITEM) {
    193 			monster->drop_percent = 0;
    194 		}
    195 		monster->m_flags &= (~(FLIES | FLITS | SPECIAL_HIT | INVISIBLE |
    196 			FLAMES | IMITATES | CONFUSES | SEEKS_GOLD | HOLDS));
    197 		break;
    198 	case DO_NOTHING:
    199 		message("nothing happens", 0);
    200 		break;
    201 	}
    202 }
    203 
    204 tele_away(monster)
    205 object *monster;
    206 {
    207 	short row, col;
    208 
    209 	if (monster->m_flags & HOLDS) {
    210 		being_held = 0;
    211 	}
    212 	gr_row_col(&row, &col, (FLOOR | TUNNEL | STAIRS | OBJECT));
    213 	mvaddch(monster->row, monster->col, monster->trail_char);
    214 	dungeon[monster->row][monster->col] &= ~MONSTER;
    215 	monster->row = row; monster->col = col;
    216 	dungeon[row][col] |= MONSTER;
    217 	monster->trail_char = mvinch(row, col);
    218 	if (detect_monster || rogue_can_see(row, col)) {
    219 		mvaddch(row, col, gmc(monster));
    220 	}
    221 }
    222 
    223 wizardize()
    224 {
    225 	char buf[100];
    226 
    227 	if (wizard) {
    228 		wizard = 0;
    229 		message("not wizard anymore", 0);
    230 	} else {
    231 		if (get_input_line("wizard's password:", "", buf, "", 0, 0)) {
    232 			(void) xxx(1);
    233 			xxxx(buf, strlen(buf));
    234 			if (!strncmp(buf, "\247\104\126\272\115\243\027", 7)) {
    235 				wizard = 1;
    236 				score_only = 1;
    237 				message("Welcome, mighty wizard!", 0);
    238 			} else {
    239 				message("sorry", 0);
    240 			}
    241 		}
    242 	}
    243 }
    244 
    245 wdrain_life(monster)
    246 object *monster;
    247 {
    248 	short hp;
    249 	object *lmon, *nm;
    250 
    251 	hp = rogue.hp_current / 3;
    252 	rogue.hp_current = (rogue.hp_current + 1) / 2;
    253 
    254 	if (cur_room >= 0) {
    255 		lmon = level_monsters.next_monster;
    256 		while (lmon) {
    257 			nm = lmon->next_monster;
    258 			if (get_room_number(lmon->row, lmon->col) == cur_room) {
    259 				wake_up(lmon);
    260 				(void) mon_damage(lmon, hp);
    261 			}
    262 			lmon = nm;
    263 		}
    264 	} else {
    265 		if (monster) {
    266 			wake_up(monster);
    267 			(void) mon_damage(monster, hp);
    268 		}
    269 	}
    270 	print_stats(STAT_HP);
    271 	relight();
    272 }
    273 
    274 bounce(ball, dir, row, col, r)
    275 short ball, dir, row, col, r;
    276 {
    277 	short orow, ocol;
    278 	char buf[DCOLS], *s;
    279 	short i, ch, new_dir = -1, damage;
    280 	static short btime;
    281 
    282 	if (++r == 1) {
    283 		btime = get_rand(3, 6);
    284 	} else if (r > btime) {
    285 		return;
    286 	}
    287 
    288 	if (ball == FIRE) {
    289 		s = "fire";
    290 	} else {
    291 		s = "ice";
    292 	}
    293 	if (r > 1) {
    294 		sprintf(buf, "the %s bounces", s);
    295 		message(buf, 0);
    296 	}
    297 	orow = row;
    298 	ocol = col;
    299 	do {
    300 		ch = mvinch(orow, ocol);
    301 		standout();
    302 		mvaddch(orow, ocol, ch);
    303 		get_dir_rc(dir, &orow, &ocol, 1);
    304 	} while (!(	(ocol <= 0) ||
    305 				(ocol >= DCOLS-1) ||
    306 				(dungeon[orow][ocol] == NOTHING) ||
    307 				(dungeon[orow][ocol] & MONSTER) ||
    308 				(dungeon[orow][ocol] & (HORWALL | VERTWALL)) ||
    309 				((orow == rogue.row) && (ocol == rogue.col))));
    310 	standend();
    311 	refresh();
    312 	do {
    313 		orow = row;
    314 		ocol = col;
    315 		ch = mvinch(row, col);
    316 		mvaddch(row, col, ch);
    317 		get_dir_rc(dir, &row, &col, 1);
    318 	} while (!(	(col <= 0) ||
    319 				(col >= DCOLS-1) ||
    320 				(dungeon[row][col] == NOTHING) ||
    321 				(dungeon[row][col] & MONSTER) ||
    322 				(dungeon[row][col] & (HORWALL | VERTWALL)) ||
    323 				((row == rogue.row) && (col == rogue.col))));
    324 
    325 	if (dungeon[row][col] & MONSTER) {
    326 		object *monster;
    327 
    328 		monster = object_at(&level_monsters, row, col);
    329 
    330 		wake_up(monster);
    331 		if (rand_percent(33)) {
    332 			sprintf(buf, "the %s misses the %s", s, mon_name(monster));
    333 			message(buf, 0);
    334 			goto ND;
    335 		}
    336 		if (ball == FIRE) {
    337 			if (!(monster->m_flags & RUSTS)) {
    338 				if (monster->m_flags & FREEZES) {
    339 					damage = monster->hp_to_kill;
    340 				} else if (monster->m_flags & FLAMES) {
    341 					damage = (monster->hp_to_kill / 10) + 1;
    342 				} else {
    343 					damage = get_rand((rogue.hp_current / 3), rogue.hp_max);
    344 				}
    345 			} else {
    346 				damage = (monster->hp_to_kill / 2) + 1;
    347 			}
    348 			sprintf(buf, "the %s hits the %s", s, mon_name(monster));
    349 			message(buf, 0);
    350 			(void) mon_damage(monster, damage);
    351 		} else {
    352 			damage = -1;
    353 			if (!(monster->m_flags & FREEZES)) {
    354 				if (rand_percent(33)) {
    355 					message("the monster is frozen", 0);
    356 					monster->m_flags |= (ASLEEP | NAPPING);
    357 					monster->nap_length = get_rand(3, 6);
    358 				} else {
    359 					damage = rogue.hp_current / 4;
    360 				}
    361 			} else {
    362 				damage = -2;
    363 			}
    364 			if (damage != -1) {
    365 				sprintf(buf, "the %s hits the %s", s, mon_name(monster));
    366 				message(buf, 0);
    367 				(void) mon_damage(monster, damage);
    368 			}
    369 		}
    370 	} else if ((row == rogue.row) && (col == rogue.col)) {
    371 		if (rand_percent(10 + (3 * get_armor_class(rogue.armor)))) {
    372 			sprintf(buf, "the %s misses", s);
    373 			message(buf, 0);
    374 			goto ND;
    375 		} else {
    376 			damage = get_rand(3, (3 * rogue.exp));
    377 			if (ball == FIRE) {
    378 				damage = (damage * 3) / 2;
    379 				damage -= get_armor_class(rogue.armor);
    380 			}
    381 			sprintf(buf, "the %s hits", s);
    382 			rogue_damage(damage, (object *) 0,
    383 					((ball == FIRE) ? KFIRE : HYPOTHERMIA));
    384 			message(buf, 0);
    385 		}
    386 	} else {
    387 		short nrow, ncol;
    388 
    389 ND:		for (i = 0; i < 10; i++) {
    390 			dir = get_rand(0, DIRS-1);
    391 			nrow = orow;
    392 			ncol = ocol;
    393 			get_dir_rc(dir, &nrow, &ncol, 1);
    394 			if (((ncol >= 0) && (ncol <= DCOLS-1)) &&
    395 				(dungeon[nrow][ncol] != NOTHING) &&
    396 				(!(dungeon[nrow][ncol] & (VERTWALL | HORWALL)))) {
    397 				new_dir = dir;
    398 				break;
    399 			}
    400 		}
    401 		if (new_dir != -1) {
    402 			bounce(ball, new_dir, orow, ocol, r);
    403 		}
    404 	}
    405 }
    406