src/cmd-magiceat.c

   1 /*!
   2  * @file cmd6.c
   3  * @brief プレイヤーのアイテムに関するコマンドの実装2 / Spell/Prayer commands
   4  * @date 2014/01/27
   5  * @author
   6  * <pre>
   7  * Copyright (c) 1997 Ben Harrison, James E. Wilson, Robert A. Koeneke
   8  * This software may be copied and distributed for educational, research,
   9  * and not for profit purposes provided that this copyright and statement
  10  * are included in all such copies.  Other copyrights may also apply.
  11  * 2014 Deskull rearranged comment for Doxygen.\n
  12  * </pre>
  13  * @details
  14  * <pre>
  15  * This file includes code for eating food, drinking potions,
  16  * reading scrolls, aiming wands, using staffs, zapping rods,
  17  * and activating artifacts.
  18  *
  19  * In all cases, if the player becomes "aware" of the item's use
  20  * by testing it, mark it as "aware" and reward some experience
  21  * based on the object's level, always rounding up.  If the player
  22  * remains "unaware", mark that object "kind" as "tried".
  23  *
  24  * This code now correctly handles the unstacking of wands, staffs,
  25  * and rods.  Note the overly paranoid warning about potential pack
  26  * overflow, which allows the player to use and drop a stacked item.
  27  *
  28  * In all "unstacking" scenarios, the "used" object is "carried" as if
  29  * the player had just picked it up.  In particular, this means that if
  30  * the use of an item induces pack overflow, that item will be dropped.
  31  *
  32  * For simplicity, these routines induce a full "pack reorganization"
  33  * which not only combines similar items, but also reorganizes various
  34  * items to obey the current "sorting" method.  This may require about
  35  * 400 item comparisons, but only occasionally.
  36  *
  37  * There may be a BIG problem with any "effect" that can cause "changes"
  38  * to the inventory.  For example, a "scroll of recharging" can cause
  39  * a wand/staff to "disappear", moving the inventory up.  Luckily, the
  40  * scrolls all appear BEFORE the staffs/wands, so this is not a problem.
  41  * But, for example, a "staff of recharging" could cause MAJOR problems.
  42  * In such a case, it will be best to either (1) "postpone" the effect
  43  * until the end of the function, or (2) "change" the effect, say, into
  44  * giving a staff "negative" charges, or "turning a staff into a stick".
  45  * It seems as though a "rod of recharging" might in fact cause problems.
  46  * The basic problem is that the act of recharging (and destroying) an
  47  * item causes the inducer of that action to "move", causing "o_ptr" to
  48  * no longer point at the correct item, with horrifying results.
  49  *
  50  * Note that food/potions/scrolls no longer use bit-flags for effects,
  51  * but instead use the "sval" (which is also used to sort the objects).
  52  * </pre>
  53  */
  54
  55 #include "angband.h"
  56 #include "cmd-usestaff.h"
  57 #include "cmd-zaprod.h"
  58 #include "cmd-zapwand.h"
  59 #include "avatar.h"
  60 #include "player-status.h"
  61
  62
  63 /*!
  64  * @brief 魔道具術師の取り込んだ魔力一覧から選択/閲覧する /
  65  * @param only_browse 閲覧するだけならばTRUE
  66  * @return 選択した魔力のID、キャンセルならば-1を返す
  67  */
  68 static OBJECT_SUBTYPE_VALUE select_magic_eater(bool only_browse)
  69 {
  70         OBJECT_SUBTYPE_VALUE ext = 0;
  71         char choice;
  72         bool flag, request_list;
  73         OBJECT_TYPE_VALUE tval = 0;
  74         int             ask = TRUE;
  75         OBJECT_SUBTYPE_VALUE i = 0;
  76         char            out_val[160];
  77
  78         int menu_line = (use_menu ? 1 : 0);
  79
  80         COMMAND_CODE sn;
  81         if (repeat_pull(&sn))
  82         {
  83                 /* Verify the spell */
  84                 if (sn >= EATER_EXT*2 && !(p_ptr->magic_num1[sn] > k_info[lookup_kind(TV_ROD, sn-EATER_EXT*2)].pval * (p_ptr->magic_num2[sn] - 1) * EATER_ROD_CHARGE))
  85                         return sn;
  86                 else if (sn < EATER_EXT*2 && !(p_ptr->magic_num1[sn] < EATER_CHARGE))
  87                         return sn;
  88         }
  89
  90         for (i = 0; i < 108; i++)
  91         {
  92                 if (p_ptr->magic_num2[i]) break;
  93         }
  94         if (i == 108)
  95         {
  96                 msg_print(_("魔法を覚えていない！", "You don't have any magic!"));
  97                 return -1;
  98         }
  99
 100         if (use_menu)
 101         {
 102                 screen_save();
 103
 104                 while(!tval)
 105                 {
 106 #ifdef JP
 107                         prt(format(" %s 杖", (menu_line == 1) ? "》" : "  "), 2, 14);
 108                         prt(format(" %s 魔法棒", (menu_line == 2) ? "》" : "  "), 3, 14);
 109                         prt(format(" %s ロッド", (menu_line == 3) ? "》" : "  "), 4, 14);
 110 #else
 111                         prt(format(" %s staff", (menu_line == 1) ? "> " : "  "), 2, 14);
 112                         prt(format(" %s wand", (menu_line == 2) ? "> " : "  "), 3, 14);
 113                         prt(format(" %s rod", (menu_line == 3) ? "> " : "  "), 4, 14);
 114 #endif
 115
 116                         if (only_browse) prt(_("どの種類の魔法を見ますか？", "Which type of magic do you browse?"), 0, 0);
 117                         else prt(_("どの種類の魔法を使いますか？", "Which type of magic do you use?"), 0, 0);
 118
 119                         choice = inkey();
 120                         switch(choice)
 121                         {
 122                         case ESCAPE:
 123                         case 'z':
 124                         case 'Z':
 125                                 screen_load();
 126                                 return -1;
 127                         case '2':
 128                         case 'j':
 129                         case 'J':
 130                                 menu_line++;
 131                                 break;
 132                         case '8':
 133                         case 'k':
 134                         case 'K':
 135                                 menu_line+= 2;
 136                                 break;
 137                         case '\r':
 138                         case 'x':
 139                         case 'X':
 140                                 ext = (menu_line-1)*EATER_EXT;
 141                                 if (menu_line == 1) tval = TV_STAFF;
 142                                 else if (menu_line == 2) tval = TV_WAND;
 143                                 else tval = TV_ROD;
 144                                 break;
 145                         }
 146                         if (menu_line > 3) menu_line -= 3;
 147                 }
 148                 screen_load();
 149         }
 150         else
 151         {
 152         while (TRUE)
 153         {
 154                 if (!get_com(_("[A] 杖, [B] 魔法棒, [C] ロッド:", "[A] staff, [B] wand, [C] rod:"), &choice, TRUE))
 155                 {
 156                         return -1;
 157                 }
 158                 if (choice == 'A' || choice == 'a')
 159                 {
 160                         ext = 0;
 161                         tval = TV_STAFF;
 162                         break;
 163                 }
 164                 if (choice == 'B' || choice == 'b')
 165                 {
 166                         ext = EATER_EXT;
 167                         tval = TV_WAND;
 168                         break;
 169                 }
 170                 if (choice == 'C' || choice == 'c')
 171                 {
 172                         ext = EATER_EXT*2;
 173                         tval = TV_ROD;
 174                         break;
 175                 }
 176         }
 177         }
 178         for (i = ext; i < ext + EATER_EXT; i++)
 179         {
 180                 if (p_ptr->magic_num2[i])
 181                 {
 182                         if (use_menu) menu_line = i-ext+1;
 183                         break;
 184                 }
 185         }
 186         if (i == ext+EATER_EXT)
 187         {
 188                 msg_print(_("その種類の魔法は覚えていない！", "You don't have that type of magic!"));
 189                 return -1;
 190         }
 191
 192         /* Nothing chosen yet */
 193         flag = FALSE;
 194
 195         /* Build a prompt */
 196         if (only_browse) strnfmt(out_val, 78, _("('*'で一覧, ESCで中断) どの魔力を見ますか？",
 197                                                                                         "(*=List, ESC=exit) Browse which power? "));
 198         else strnfmt(out_val, 78, _("('*'で一覧, ESCで中断) どの魔力を使いますか？",
 199                                                                 "(*=List, ESC=exit) Use which power? "));
 200                 screen_save();
 201
 202         request_list = always_show_list;
 203
 204         /* Get a spell from the user */
 205         while (!flag)
 206         {
 207                 /* Show the list */
 208                 if (request_list || use_menu)
 209                 {
 210                         byte y, x = 0;
 211                         OBJECT_SUBTYPE_VALUE ctr;
 212                         PERCENTAGE chance;
 213                         KIND_OBJECT_IDX k_idx;
 214                         char dummy[80];
 215                         POSITION x1, y1;
 216                         DEPTH level;
 217                         byte col;
 218
 219                         strcpy(dummy, "");
 220
 221                         for (y = 1; y < 20; y++)
 222                                 prt("", y, x);
 223
 224                         y = 1;
 225
 226                         /* Print header(s) */
 227 #ifdef JP
 228                         prt(format("                           %s 失率                           %s 失率", (tval == TV_ROD ? "  状態  " : "使用回数"), (tval == TV_ROD ? "  状態  " : "使用回数")), y++, x);
 229 #else
 230                         prt(format("                           %s Fail                           %s Fail", (tval == TV_ROD ? "  Stat  " : " Charges"), (tval == TV_ROD ? "  Stat  " : " Charges")), y++, x);
 231 #endif
 232
 233                         /* Print list */
 234                         for (ctr = 0; ctr < EATER_EXT; ctr++)
 235                         {
 236                                 if (!p_ptr->magic_num2[ctr+ext]) continue;
 237
 238                                 k_idx = lookup_kind(tval, ctr);
 239
 240                                 if (use_menu)
 241                                 {
 242                                         if (ctr == (menu_line-1))
 243                                                 strcpy(dummy, _("》", "> "));
 244                                         else
 245                                                 strcpy(dummy, "  ");
 246                                 }
 247                                 /* letter/number for power selection */
 248                                 else
 249                                 {
 250                                         char letter;
 251                                         if (ctr < 26)
 252                                                 letter = I2A(ctr);
 253                                         else
 254                                                 letter = '0' + ctr - 26;
 255                                         sprintf(dummy, "%c)",letter);
 256                                 }
 257                                 x1 = ((ctr < EATER_EXT/2) ? x : x + 40);
 258                                 y1 = ((ctr < EATER_EXT/2) ? y + ctr : y + ctr - EATER_EXT/2);
 259                                 level = (tval == TV_ROD ? k_info[k_idx].level * 5 / 6 - 5 : k_info[k_idx].level);
 260                                 chance = level * 4 / 5 + 20;
 261                                 chance -= 3 * (adj_mag_stat[p_ptr->stat_ind[mp_ptr->spell_stat]] - 1);
 262                                 level /= 2;
 263                                 if (p_ptr->lev > level)
 264                                 {
 265                                         chance -= 3 * (p_ptr->lev - level);
 266                                 }
 267                                 chance = mod_spell_chance_1(chance);
 268                                 chance = MAX(chance, adj_mag_fail[p_ptr->stat_ind[mp_ptr->spell_stat]]);
 269                                 /* Stunning makes spells harder */
 270                                 if (p_ptr->stun > 50) chance += 25;
 271                                 else if (p_ptr->stun) chance += 15;
 272
 273                                 if (chance > 95) chance = 95;
 274
 275                                 chance = mod_spell_chance_2(chance);
 276
 277                                 col = TERM_WHITE;
 278
 279                                 if (k_idx)
 280                                 {
 281                                         if (tval == TV_ROD)
 282                                         {
 283                                                 strcat(dummy, format(
 284                                                                _(" %-22.22s 充填:%2d/%2d%3d%%", " %-22.22s   (%2d/%2d) %3d%%"),
 285                                                                k_name + k_info[k_idx].name,
 286                                                                p_ptr->magic_num1[ctr+ext] ?
 287                                                                (p_ptr->magic_num1[ctr+ext] - 1) / (EATER_ROD_CHARGE * k_info[k_idx].pval) +1 : 0,
 288                                                                p_ptr->magic_num2[ctr+ext], chance));
 289                                                 if (p_ptr->magic_num1[ctr+ext] > k_info[k_idx].pval * (p_ptr->magic_num2[ctr+ext]-1) * EATER_ROD_CHARGE) col = TERM_RED;
 290                                         }
 291                                         else
 292                                         {
 293                                                 strcat(dummy, format(" %-22.22s    %2d/%2d %3d%%", k_name + k_info[k_idx].name, (s16b)(p_ptr->magic_num1[ctr+ext]/EATER_CHARGE), p_ptr->magic_num2[ctr+ext], chance));
 294                                                 if (p_ptr->magic_num1[ctr+ext] < EATER_CHARGE) col = TERM_RED;
 295                                         }
 296                                 }
 297                                 else
 298                                         strcpy(dummy, "");
 299                                 c_prt(col, dummy, y1, x1);
 300                         }
 301                 }
 302
 303                 if (!get_com(out_val, &choice, FALSE)) break;
 304
 305                 if (use_menu && choice != ' ')
 306                 {
 307                         switch (choice)
 308                         {
 309                                 case '0':
 310                                 {
 311                                         screen_load();
 312                                         return 0;
 313                                 }
 314
 315                                 case '8':
 316                                 case 'k':
 317                                 case 'K':
 318                                 {
 319                                         do
 320                                         {
 321                                                 menu_line += EATER_EXT - 1;
 322                                                 if (menu_line > EATER_EXT) menu_line -= EATER_EXT;
 323                                         } while(!p_ptr->magic_num2[menu_line+ext-1]);
 324                                         break;
 325                                 }
 326
 327                                 case '2':
 328                                 case 'j':
 329                                 case 'J':
 330                                 {
 331                                         do
 332                                         {
 333                                                 menu_line++;
 334                                                 if (menu_line > EATER_EXT) menu_line -= EATER_EXT;
 335                                         } while(!p_ptr->magic_num2[menu_line+ext-1]);
 336                                         break;
 337                                 }
 338
 339                                 case '4':
 340                                 case 'h':
 341                                 case 'H':
 342                                 case '6':
 343                                 case 'l':
 344                                 case 'L':
 345                                 {
 346                                         bool reverse = FALSE;
 347                                         if ((choice == '4') || (choice == 'h') || (choice == 'H')) reverse = TRUE;
 348                                         if (menu_line > EATER_EXT/2)
 349                                         {
 350                                                 menu_line -= EATER_EXT/2;
 351                                                 reverse = TRUE;
 352                                         }
 353                                         else menu_line+=EATER_EXT/2;
 354                                         while(!p_ptr->magic_num2[menu_line+ext-1])
 355                                         {
 356                                                 if (reverse)
 357                                                 {
 358                                                         menu_line--;
 359                                                         if (menu_line < 2) reverse = FALSE;
 360                                                 }
 361                                                 else
 362                                                 {
 363                                                         menu_line++;
 364                                                         if (menu_line > EATER_EXT-1) reverse = TRUE;
 365                                                 }
 366                                         }
 367                                         break;
 368                                 }
 369
 370                                 case 'x':
 371                                 case 'X':
 372                                 case '\r':
 373                                 {
 374                                         i = menu_line - 1;
 375                                         ask = FALSE;
 376                                         break;
 377                                 }
 378                         }
 379                 }
 380
 381                 /* Request redraw */
 382                 if (use_menu && ask) continue;
 383
 384                 /* Request redraw */
 385                 if (!use_menu && ((choice == ' ') || (choice == '*') || (choice == '?')))
 386                 {
 387                         /* Hide the list */
 388                         if (request_list)
 389                         {
 390                                 /* Hide list */
 391                                 request_list = FALSE;
 392                                                                 screen_load();
 393                                 screen_save();
 394                         }
 395                         else
 396                                 request_list = TRUE;
 397
 398                         /* Redo asking */
 399                         continue;
 400                 }
 401
 402                 if (!use_menu)
 403                 {
 404                         if (isalpha(choice))
 405                         {
 406                                 /* Note verify */
 407                                 ask = (isupper(choice));
 408
 409                                 /* Lowercase */
 410                                 if (ask) choice = (char)tolower(choice);
 411
 412                                 /* Extract request */
 413                                 i = (islower(choice) ? A2I(choice) : -1);
 414                         }
 415                         else
 416                         {
 417                                 ask = FALSE; /* Can't uppercase digits */
 418
 419                                 i = choice - '0' + 26;
 420                         }
 421                 }
 422
 423                 /* Totally Illegal */
 424                 if ((i < 0) || (i > EATER_EXT) || !p_ptr->magic_num2[i+ext])
 425                 {
 426                         bell();
 427                         continue;
 428                 }
 429
 430                 if (!only_browse)
 431                 {
 432                         /* Verify it */
 433                         if (ask)
 434                         {
 435                                 char tmp_val[160];
 436
 437                                 /* Prompt */
 438                                 (void) strnfmt(tmp_val, 78, _("%sを使いますか？ ", "Use %s?"), k_name + k_info[lookup_kind(tval ,i)].name);
 439
 440                                 /* Belay that order */
 441                                 if (!get_check(tmp_val)) continue;
 442                         }
 443                         if (tval == TV_ROD)
 444                         {
 445                                 if (p_ptr->magic_num1[ext+i]  > k_info[lookup_kind(tval, i)].pval * (p_ptr->magic_num2[ext+i] - 1) * EATER_ROD_CHARGE)
 446                                 {
 447                                         msg_print(_("その魔法はまだ充填している最中だ。", "The magic are still charging."));
 448                                         msg_print(NULL);
 449                                         if (use_menu) ask = TRUE;
 450                                         continue;
 451                                 }
 452                         }
 453                         else
 454                         {
 455                                 if (p_ptr->magic_num1[ext+i] < EATER_CHARGE)
 456                                 {
 457                                         msg_print(_("その魔法は使用回数が切れている。", "The magic has no charges left."));
 458                                         msg_print(NULL);
 459                                         if (use_menu) ask = TRUE;
 460                                         continue;
 461                                 }
 462                         }
 463                 }
 464
 465                 /* Browse */
 466                 else
 467                 {
 468                         int line, j;
 469                         char temp[70 * 20];
 470
 471                         /* Clear lines, position cursor  (really should use strlen here) */
 472                         Term_erase(7, 23, 255);
 473                         Term_erase(7, 22, 255);
 474                         Term_erase(7, 21, 255);
 475                         Term_erase(7, 20, 255);
 476
 477                         roff_to_buf(k_text + k_info[lookup_kind(tval, i)].text, 62, temp, sizeof(temp));
 478                         for (j = 0, line = 21; temp[j]; j += 1 + strlen(&temp[j]))
 479                         {
 480                                 prt(&temp[j], line, 10);
 481                                 line++;
 482                         }
 483
 484                         continue;
 485                 }
 486
 487                 /* Stop the loop */
 488                 flag = TRUE;
 489         }
 490         screen_load();
 491
 492         if (!flag) return -1;
 493
 494         repeat_push(ext+i);
 495         return ext+i;
 496 }
 497
 498
 499 /*!
 500  * @brief 取り込んだ魔力を利用するコマンドのメインルーチン /
 501  * Use eaten rod, wand or staff
 502  * @param only_browse 閲覧するだけならばTRUE
 503  * @param powerful 強力発動中の処理ならばTRUE
 504  * @return 実際にコマンドを実行したならばTRUEを返す。
 505  */
 506 bool do_cmd_magic_eater(bool only_browse, bool powerful)
 507 {
 508         OBJECT_SUBTYPE_VALUE item;
 509         PERCENTAGE chance;
 510         DEPTH level;
 511         KIND_OBJECT_IDX k_idx;
 512         OBJECT_TYPE_VALUE tval;
 513         OBJECT_SUBTYPE_VALUE sval;
 514         bool use_charge = TRUE;
 515
 516         if (cmd_limit_confused(p_ptr)) return FALSE;
 517
 518         item = select_magic_eater(only_browse);
 519         if (item == -1)
 520         {
 521                 free_turn(p_ptr);
 522                 return FALSE;
 523         }
 524         if (item >= EATER_EXT*2) {tval = TV_ROD;sval = item - EATER_EXT*2;}
 525         else if (item >= EATER_EXT) {tval = TV_WAND;sval = item - EATER_EXT;}
 526         else {tval = TV_STAFF; sval = item;}
 527         k_idx = lookup_kind(tval, sval);
 528
 529         level = (tval == TV_ROD ? k_info[k_idx].level * 5 / 6 - 5 : k_info[k_idx].level);
 530         chance = level * 4 / 5 + 20;
 531         chance -= 3 * (adj_mag_stat[p_ptr->stat_ind[mp_ptr->spell_stat]] - 1);
 532         level /= 2;
 533         if (p_ptr->lev > level)
 534         {
 535                 chance -= 3 * (p_ptr->lev - level);
 536         }
 537         chance = mod_spell_chance_1(chance);
 538         chance = MAX(chance, adj_mag_fail[p_ptr->stat_ind[mp_ptr->spell_stat]]);
 539         /* Stunning makes spells harder */
 540         if (p_ptr->stun > 50) chance += 25;
 541         else if (p_ptr->stun) chance += 15;
 542
 543         if (chance > 95) chance = 95;
 544
 545         chance = mod_spell_chance_2(chance);
 546
 547         if (randint0(100) < chance)
 548         {
 549                 if (flush_failure) flush();
 550
 551                 msg_print(_("呪文をうまく唱えられなかった！", "You failed to get the magic off!"));
 552                 sound(SOUND_FAIL);
 553                 if (randint1(100) >= chance)
 554                         chg_virtue(V_CHANCE,-1);
 555                 take_turn(p_ptr, 100);;
 556
 557                 return TRUE;
 558         }
 559         else
 560         {
 561                 DIRECTION dir = 0;
 562
 563                 if (tval == TV_ROD)
 564                 {
 565                         if ((sval >= SV_ROD_MIN_DIRECTION) && (sval != SV_ROD_HAVOC) && (sval != SV_ROD_AGGRAVATE) && (sval != SV_ROD_PESTICIDE))
 566                                 if (!get_aim_dir(&dir)) return FALSE;
 567                         rod_effect(sval, dir, &use_charge, powerful, TRUE);
 568                         if (!use_charge) return FALSE;
 569                 }
 570                 else if (tval == TV_WAND)
 571                 {
 572                         if (!get_aim_dir(&dir)) return FALSE;
 573                         wand_effect(sval, dir, powerful, TRUE);
 574                 }
 575                 else
 576                 {
 577                         staff_effect(sval, &use_charge, powerful, TRUE, TRUE);
 578                         if (!use_charge) return FALSE;
 579                 }
 580                 if (randint1(100) < chance)
 581                         chg_virtue(V_CHANCE,1);
 582         }
 583         take_turn(p_ptr, 100);;
 584         if (tval == TV_ROD) p_ptr->magic_num1[item] += k_info[k_idx].pval * EATER_ROD_CHARGE;
 585         else p_ptr->magic_num1[item] -= EATER_CHARGE;
 586
 587         return TRUE;
 588 }