| 1 | /* |
| 2 | * pack.c |
| 3 | * |
| 4 | * This source herein may be modified and/or distributed by anybody who |
| 5 | * so desires, with the following restrictions: |
| 6 | * 1.) No portion of this notice shall be removed. |
| 7 | * 2.) Credit shall not be taken for the creation of this source. |
| 8 | * 3.) This code is not to be traded, sold, or used for personal |
| 9 | * gain or profit. |
| 10 | * |
| 11 | */ |
| 12 | |
| 13 | #ifndef lint |
| 14 | static char sccsid[] = "@(#)pack.c 5.1 (Berkeley) %G%"; |
| 15 | #endif /* not lint */ |
| 16 | |
| 17 | #include "rogue.h" |
| 18 | |
| 19 | char *curse_message = "you can't, it appears to be cursed"; |
| 20 | |
| 21 | extern short levitate; |
| 22 | |
| 23 | object * |
| 24 | add_to_pack(obj, pack, condense) |
| 25 | object *obj, *pack; |
| 26 | { |
| 27 | object *op; |
| 28 | |
| 29 | if (condense) { |
| 30 | if (op = check_duplicate(obj, pack)) { |
| 31 | free_object(obj); |
| 32 | return(op); |
| 33 | } else { |
| 34 | obj->ichar = next_avail_ichar(); |
| 35 | } |
| 36 | } |
| 37 | if (pack->next_object == 0) { |
| 38 | pack->next_object = obj; |
| 39 | } else { |
| 40 | op = pack->next_object; |
| 41 | |
| 42 | while (op->next_object) { |
| 43 | op = op->next_object; |
| 44 | } |
| 45 | op->next_object = obj; |
| 46 | } |
| 47 | obj->next_object = 0; |
| 48 | return(obj); |
| 49 | } |
| 50 | |
| 51 | take_from_pack(obj, pack) |
| 52 | object *obj, *pack; |
| 53 | { |
| 54 | while (pack->next_object != obj) { |
| 55 | pack = pack->next_object; |
| 56 | } |
| 57 | pack->next_object = pack->next_object->next_object; |
| 58 | } |
| 59 | |
| 60 | /* Note: *status is set to 0 if the rogue attempts to pick up a scroll |
| 61 | * of scare-monster and it turns to dust. *status is otherwise set to 1. |
| 62 | */ |
| 63 | |
| 64 | object * |
| 65 | pick_up(row, col, status) |
| 66 | short *status; |
| 67 | { |
| 68 | object *obj; |
| 69 | |
| 70 | *status = 1; |
| 71 | |
| 72 | if (levitate) { |
| 73 | message("you're floating in the air!", 0); |
| 74 | return((object *) 0); |
| 75 | } |
| 76 | obj = object_at(&level_objects, row, col); |
| 77 | if (!obj) { |
| 78 | message("pick_up(): inconsistent", 1); |
| 79 | return(obj); |
| 80 | } |
| 81 | if ( (obj->what_is == SCROL) && |
| 82 | (obj->which_kind == SCARE_MONSTER) && |
| 83 | obj->picked_up) { |
| 84 | message("the scroll turns to dust as you pick it up", 0); |
| 85 | dungeon[row][col] &= (~OBJECT); |
| 86 | vanish(obj, 0, &level_objects); |
| 87 | *status = 0; |
| 88 | if (id_scrolls[SCARE_MONSTER].id_status == UNIDENTIFIED) { |
| 89 | id_scrolls[SCARE_MONSTER].id_status = IDENTIFIED; |
| 90 | } |
| 91 | return((object *) 0); |
| 92 | } |
| 93 | if (obj->what_is == GOLD) { |
| 94 | rogue.gold += obj->quantity; |
| 95 | dungeon[row][col] &= ~(OBJECT); |
| 96 | take_from_pack(obj, &level_objects); |
| 97 | print_stats(STAT_GOLD); |
| 98 | return(obj); /* obj will be free_object()ed in caller */ |
| 99 | } |
| 100 | if (pack_count(obj) >= MAX_PACK_COUNT) { |
| 101 | message("pack too full", 1); |
| 102 | return((object *) 0); |
| 103 | } |
| 104 | dungeon[row][col] &= ~(OBJECT); |
| 105 | take_from_pack(obj, &level_objects); |
| 106 | obj = add_to_pack(obj, &rogue.pack, 1); |
| 107 | obj->picked_up = 1; |
| 108 | return(obj); |
| 109 | } |
| 110 | |
| 111 | drop() |
| 112 | { |
| 113 | object *obj, *new; |
| 114 | short ch; |
| 115 | char desc[DCOLS]; |
| 116 | |
| 117 | if (dungeon[rogue.row][rogue.col] & (OBJECT | STAIRS | TRAP)) { |
| 118 | message("there's already something there", 0); |
| 119 | return; |
| 120 | } |
| 121 | if (!rogue.pack.next_object) { |
| 122 | message("you have nothing to drop", 0); |
| 123 | return; |
| 124 | } |
| 125 | if ((ch = pack_letter("drop what?", ALL_OBJECTS)) == CANCEL) { |
| 126 | return; |
| 127 | } |
| 128 | if (!(obj = get_letter_object(ch))) { |
| 129 | message("no such item.", 0); |
| 130 | return; |
| 131 | } |
| 132 | if (obj->in_use_flags & BEING_WIELDED) { |
| 133 | if (obj->is_cursed) { |
| 134 | message(curse_message, 0); |
| 135 | return; |
| 136 | } |
| 137 | unwield(rogue.weapon); |
| 138 | } else if (obj->in_use_flags & BEING_WORN) { |
| 139 | if (obj->is_cursed) { |
| 140 | message(curse_message, 0); |
| 141 | return; |
| 142 | } |
| 143 | mv_aquatars(); |
| 144 | unwear(rogue.armor); |
| 145 | print_stats(STAT_ARMOR); |
| 146 | } else if (obj->in_use_flags & ON_EITHER_HAND) { |
| 147 | if (obj->is_cursed) { |
| 148 | message(curse_message, 0); |
| 149 | return; |
| 150 | } |
| 151 | un_put_on(obj); |
| 152 | } |
| 153 | obj->row = rogue.row; |
| 154 | obj->col = rogue.col; |
| 155 | |
| 156 | if ((obj->quantity > 1) && (obj->what_is != WEAPON)) { |
| 157 | obj->quantity--; |
| 158 | new = alloc_object(); |
| 159 | *new = *obj; |
| 160 | new->quantity = 1; |
| 161 | obj = new; |
| 162 | } else { |
| 163 | obj->ichar = 'L'; |
| 164 | take_from_pack(obj, &rogue.pack); |
| 165 | } |
| 166 | place_at(obj, rogue.row, rogue.col); |
| 167 | (void) strcpy(desc, "dropped "); |
| 168 | get_desc(obj, desc+8); |
| 169 | message(desc, 0); |
| 170 | (void) reg_move(); |
| 171 | } |
| 172 | |
| 173 | object * |
| 174 | check_duplicate(obj, pack) |
| 175 | object *obj, *pack; |
| 176 | { |
| 177 | object *op; |
| 178 | |
| 179 | if (!(obj->what_is & (WEAPON | FOOD | SCROL | POTION))) { |
| 180 | return(0); |
| 181 | } |
| 182 | if ((obj->what_is == FOOD) && (obj->which_kind == FRUIT)) { |
| 183 | return(0); |
| 184 | } |
| 185 | op = pack->next_object; |
| 186 | |
| 187 | while (op) { |
| 188 | if ((op->what_is == obj->what_is) && |
| 189 | (op->which_kind == obj->which_kind)) { |
| 190 | |
| 191 | if ((obj->what_is != WEAPON) || |
| 192 | ((obj->what_is == WEAPON) && |
| 193 | ((obj->which_kind == ARROW) || |
| 194 | (obj->which_kind == DAGGER) || |
| 195 | (obj->which_kind == DART) || |
| 196 | (obj->which_kind == SHURIKEN)) && |
| 197 | (obj->quiver == op->quiver))) { |
| 198 | op->quantity += obj->quantity; |
| 199 | return(op); |
| 200 | } |
| 201 | } |
| 202 | op = op->next_object; |
| 203 | } |
| 204 | return(0); |
| 205 | } |
| 206 | |
| 207 | next_avail_ichar() |
| 208 | { |
| 209 | register object *obj; |
| 210 | register i; |
| 211 | boolean ichars[26]; |
| 212 | |
| 213 | for (i = 0; i < 26; i++) { |
| 214 | ichars[i] = 0; |
| 215 | } |
| 216 | obj = rogue.pack.next_object; |
| 217 | while (obj) { |
| 218 | ichars[(obj->ichar - 'a')] = 1; |
| 219 | obj = obj->next_object; |
| 220 | } |
| 221 | for (i = 0; i < 26; i++) { |
| 222 | if (!ichars[i]) { |
| 223 | return(i + 'a'); |
| 224 | } |
| 225 | } |
| 226 | return('?'); |
| 227 | } |
| 228 | |
| 229 | wait_for_ack() |
| 230 | { |
| 231 | while (rgetchar() != ' ') ; |
| 232 | } |
| 233 | |
| 234 | pack_letter(prompt, mask) |
| 235 | char *prompt; |
| 236 | unsigned short mask; |
| 237 | { |
| 238 | short ch; |
| 239 | unsigned short tmask = mask; |
| 240 | |
| 241 | if (!mask_pack(&rogue.pack, mask)) { |
| 242 | message("nothing appropriate", 0); |
| 243 | return(CANCEL); |
| 244 | } |
| 245 | for (;;) { |
| 246 | |
| 247 | message(prompt, 0); |
| 248 | |
| 249 | for (;;) { |
| 250 | ch = rgetchar(); |
| 251 | if (!is_pack_letter(&ch, &mask)) { |
| 252 | sound_bell(); |
| 253 | } else { |
| 254 | break; |
| 255 | } |
| 256 | } |
| 257 | |
| 258 | if (ch == LIST) { |
| 259 | check_message(); |
| 260 | inventory(&rogue.pack, mask); |
| 261 | } else { |
| 262 | break; |
| 263 | } |
| 264 | mask = tmask; |
| 265 | } |
| 266 | check_message(); |
| 267 | return(ch); |
| 268 | } |
| 269 | |
| 270 | take_off() |
| 271 | { |
| 272 | char desc[DCOLS]; |
| 273 | object *obj; |
| 274 | |
| 275 | if (rogue.armor) { |
| 276 | if (rogue.armor->is_cursed) { |
| 277 | message(curse_message, 0); |
| 278 | } else { |
| 279 | mv_aquatars(); |
| 280 | obj = rogue.armor; |
| 281 | unwear(rogue.armor); |
| 282 | (void) strcpy(desc, "was wearing "); |
| 283 | get_desc(obj, desc+12); |
| 284 | message(desc, 0); |
| 285 | print_stats(STAT_ARMOR); |
| 286 | (void) reg_move(); |
| 287 | } |
| 288 | } else { |
| 289 | message("not wearing any", 0); |
| 290 | } |
| 291 | } |
| 292 | |
| 293 | wear() |
| 294 | { |
| 295 | short ch; |
| 296 | register object *obj; |
| 297 | char desc[DCOLS]; |
| 298 | |
| 299 | if (rogue.armor) { |
| 300 | message("your already wearing some", 0); |
| 301 | return; |
| 302 | } |
| 303 | ch = pack_letter("wear what?", ARMOR); |
| 304 | |
| 305 | if (ch == CANCEL) { |
| 306 | return; |
| 307 | } |
| 308 | if (!(obj = get_letter_object(ch))) { |
| 309 | message("no such item.", 0); |
| 310 | return; |
| 311 | } |
| 312 | if (obj->what_is != ARMOR) { |
| 313 | message("you can't wear that", 0); |
| 314 | return; |
| 315 | } |
| 316 | obj->identified = 1; |
| 317 | (void) strcpy(desc, "wearing "); |
| 318 | get_desc(obj, desc + 8); |
| 319 | message(desc, 0); |
| 320 | do_wear(obj); |
| 321 | print_stats(STAT_ARMOR); |
| 322 | (void) reg_move(); |
| 323 | } |
| 324 | |
| 325 | unwear(obj) |
| 326 | object *obj; |
| 327 | { |
| 328 | if (obj) { |
| 329 | obj->in_use_flags &= (~BEING_WORN); |
| 330 | } |
| 331 | rogue.armor = (object *) 0; |
| 332 | } |
| 333 | |
| 334 | do_wear(obj) |
| 335 | object *obj; |
| 336 | { |
| 337 | rogue.armor = obj; |
| 338 | obj->in_use_flags |= BEING_WORN; |
| 339 | obj->identified = 1; |
| 340 | } |
| 341 | |
| 342 | wield() |
| 343 | { |
| 344 | short ch; |
| 345 | register object *obj; |
| 346 | char desc[DCOLS]; |
| 347 | |
| 348 | if (rogue.weapon && rogue.weapon->is_cursed) { |
| 349 | message(curse_message, 0); |
| 350 | return; |
| 351 | } |
| 352 | ch = pack_letter("wield what?", WEAPON); |
| 353 | |
| 354 | if (ch == CANCEL) { |
| 355 | return; |
| 356 | } |
| 357 | if (!(obj = get_letter_object(ch))) { |
| 358 | message("No such item.", 0); |
| 359 | return; |
| 360 | } |
| 361 | if (obj->what_is & (ARMOR | RING)) { |
| 362 | sprintf(desc, "you can't wield %s", |
| 363 | ((obj->what_is == ARMOR) ? "armor" : "rings")); |
| 364 | message(desc, 0); |
| 365 | return; |
| 366 | } |
| 367 | if (obj->in_use_flags & BEING_WIELDED) { |
| 368 | message("in use", 0); |
| 369 | } else { |
| 370 | unwield(rogue.weapon); |
| 371 | (void) strcpy(desc, "wielding "); |
| 372 | get_desc(obj, desc + 9); |
| 373 | message(desc, 0); |
| 374 | do_wield(obj); |
| 375 | (void) reg_move(); |
| 376 | } |
| 377 | } |
| 378 | |
| 379 | do_wield(obj) |
| 380 | object *obj; |
| 381 | { |
| 382 | rogue.weapon = obj; |
| 383 | obj->in_use_flags |= BEING_WIELDED; |
| 384 | } |
| 385 | |
| 386 | unwield(obj) |
| 387 | object *obj; |
| 388 | { |
| 389 | if (obj) { |
| 390 | obj->in_use_flags &= (~BEING_WIELDED); |
| 391 | } |
| 392 | rogue.weapon = (object *) 0; |
| 393 | } |
| 394 | |
| 395 | call_it() |
| 396 | { |
| 397 | short ch; |
| 398 | register object *obj; |
| 399 | struct id *id_table; |
| 400 | char buf[MAX_TITLE_LENGTH+2]; |
| 401 | |
| 402 | ch = pack_letter("call what?", (SCROL | POTION | WAND | RING)); |
| 403 | |
| 404 | if (ch == CANCEL) { |
| 405 | return; |
| 406 | } |
| 407 | if (!(obj = get_letter_object(ch))) { |
| 408 | message("no such item.", 0); |
| 409 | return; |
| 410 | } |
| 411 | if (!(obj->what_is & (SCROL | POTION | WAND | RING))) { |
| 412 | message("surely you already know what that's called", 0); |
| 413 | return; |
| 414 | } |
| 415 | id_table = get_id_table(obj); |
| 416 | |
| 417 | if (get_input_line("call it:","",buf,id_table[obj->which_kind].title,1,1)) { |
| 418 | id_table[obj->which_kind].id_status = CALLED; |
| 419 | (void) strcpy(id_table[obj->which_kind].title, buf); |
| 420 | } |
| 421 | } |
| 422 | |
| 423 | pack_count(new_obj) |
| 424 | object *new_obj; |
| 425 | { |
| 426 | object *obj; |
| 427 | short count = 0; |
| 428 | |
| 429 | obj = rogue.pack.next_object; |
| 430 | |
| 431 | while (obj) { |
| 432 | if (obj->what_is != WEAPON) { |
| 433 | count += obj->quantity; |
| 434 | } else if (!new_obj) { |
| 435 | count++; |
| 436 | } else if ((new_obj->what_is != WEAPON) || |
| 437 | ((obj->which_kind != ARROW) && |
| 438 | (obj->which_kind != DAGGER) && |
| 439 | (obj->which_kind != DART) && |
| 440 | (obj->which_kind != SHURIKEN)) || |
| 441 | (new_obj->which_kind != obj->which_kind) || |
| 442 | (obj->quiver != new_obj->quiver)) { |
| 443 | count++; |
| 444 | } |
| 445 | obj = obj->next_object; |
| 446 | } |
| 447 | return(count); |
| 448 | } |
| 449 | |
| 450 | boolean |
| 451 | mask_pack(pack, mask) |
| 452 | object *pack; |
| 453 | unsigned short mask; |
| 454 | { |
| 455 | while (pack->next_object) { |
| 456 | pack = pack->next_object; |
| 457 | if (pack->what_is & mask) { |
| 458 | return(1); |
| 459 | } |
| 460 | } |
| 461 | return(0); |
| 462 | } |
| 463 | |
| 464 | is_pack_letter(c, mask) |
| 465 | short *c; |
| 466 | unsigned short *mask; |
| 467 | { |
| 468 | if (((*c == '?') || (*c == '!') || (*c == ':') || (*c == '=') || |
| 469 | (*c == ')') || (*c == ']') || (*c == '/') || (*c == ','))) { |
| 470 | switch(*c) { |
| 471 | case '?': |
| 472 | *mask = SCROL; |
| 473 | break; |
| 474 | case '!': |
| 475 | *mask = POTION; |
| 476 | break; |
| 477 | case ':': |
| 478 | *mask = FOOD; |
| 479 | break; |
| 480 | case ')': |
| 481 | *mask = WEAPON; |
| 482 | break; |
| 483 | case ']': |
| 484 | *mask = ARMOR; |
| 485 | break; |
| 486 | case '/': |
| 487 | *mask = WAND; |
| 488 | break; |
| 489 | case '=': |
| 490 | *mask = RING; |
| 491 | break; |
| 492 | case ',': |
| 493 | *mask = AMULET; |
| 494 | break; |
| 495 | } |
| 496 | *c = LIST; |
| 497 | return(1); |
| 498 | } |
| 499 | return(((*c >= 'a') && (*c <= 'z')) || (*c == CANCEL) || (*c == LIST)); |
| 500 | } |
| 501 | |
| 502 | has_amulet() |
| 503 | { |
| 504 | return(mask_pack(&rogue.pack, AMULET)); |
| 505 | } |
| 506 | |
| 507 | kick_into_pack() |
| 508 | { |
| 509 | object *obj; |
| 510 | char desc[DCOLS]; |
| 511 | short n, stat; |
| 512 | |
| 513 | if (!(dungeon[rogue.row][rogue.col] & OBJECT)) { |
| 514 | message("nothing here", 0); |
| 515 | } else { |
| 516 | if (obj = pick_up(rogue.row, rogue.col, &stat)) { |
| 517 | get_desc(obj, desc); |
| 518 | if (obj->what_is == GOLD) { |
| 519 | message(desc, 0); |
| 520 | free_object(obj); |
| 521 | } else { |
| 522 | n = strlen(desc); |
| 523 | desc[n] = '('; |
| 524 | desc[n+1] = obj->ichar; |
| 525 | desc[n+2] = ')'; |
| 526 | desc[n+3] = 0; |
| 527 | message(desc, 0); |
| 528 | } |
| 529 | } |
| 530 | if (obj || (!stat)) { |
| 531 | (void) reg_move(); |
| 532 | } |
| 533 | } |
| 534 | } |