src/shoot.c

   1 #include "angband.h"
   2 #include "util.h"
   3
   4 #include "monster.h"
   5 #include "monster-status.h"
   6 #include "monster-spell.h"
   7 #include "artifact.h"
   8 #include "avatar.h"
   9 #include "player-status.h"
  10 #include "player-skill.h"
  11 #include "object-hook.h"
  12 #include "floor.h"
  13 #include "grid.h"
  14 #include "spells.h"
  15 #include "object-flavor.h"
  16
  17 #include "shoot.h"
  18 #include "snipe.h"
  19 #include "view-mainwindow.h"
  20
  21 /*!
  22  * @brief 矢弾を射撃した際のスレイ倍率をかけた結果を返す /
  23  * Determines the odds of an object breaking when thrown at a monster
  24  * @param o_ptr 矢弾のオブジェクト構造体参照ポインタ
  25  * @param tdam 計算途中のダメージ量
  26  * @param m_ptr 目標モンスターの構造体参照ポインタ
  27  * @return スレイ倍率をかけたダメージ量
  28  */
  29 static MULTIPLY tot_dam_aux_shot(object_type *o_ptr, HIT_POINT tdam, monster_type *m_ptr, SPELL_IDX snipe_type)
  30 {
  31         MULTIPLY mult = 10;
  32
  33         monster_race *r_ptr = &r_info[m_ptr->r_idx];
  34
  35         BIT_FLAGS flgs[TR_FLAG_SIZE];
  36         object_flags(o_ptr, flgs);
  37
  38         /* Some "weapons" and "ammo" do extra damage */
  39         switch (o_ptr->tval)
  40         {
  41         case TV_SHOT:
  42         case TV_ARROW:
  43         case TV_BOLT:
  44         {
  45                 if ((have_flag(flgs, TR_SLAY_ANIMAL)) && (r_ptr->flags3 & RF3_ANIMAL))
  46                 {
  47                         if (is_original_ap_and_seen(m_ptr))
  48                         {
  49                                 r_ptr->r_flags3 |= RF3_ANIMAL;
  50                         }
  51                         if (mult < 17) mult = 17;
  52                 }
  53
  54                 if ((have_flag(flgs, TR_KILL_ANIMAL)) && (r_ptr->flags3 & RF3_ANIMAL))
  55                 {
  56                         if (is_original_ap_and_seen(m_ptr))
  57                         {
  58                                 r_ptr->r_flags3 |= RF3_ANIMAL;
  59                         }
  60                         if (mult < 27) mult = 27;
  61                 }
  62
  63                 if ((have_flag(flgs, TR_SLAY_EVIL)) && (r_ptr->flags3 & RF3_EVIL))
  64                 {
  65                         if (is_original_ap_and_seen(m_ptr))
  66                         {
  67                                 r_ptr->r_flags3 |= RF3_EVIL;
  68                         }
  69                         if (mult < 15) mult = 15;
  70                 }
  71
  72                 if ((have_flag(flgs, TR_KILL_EVIL)) && (r_ptr->flags3 & RF3_EVIL))
  73                 {
  74                         if (is_original_ap_and_seen(m_ptr))
  75                         {
  76                                 r_ptr->r_flags3 |= RF3_EVIL;
  77                         }
  78                         if (mult < 25) mult = 25;
  79                 }
  80
  81                 if ((have_flag(flgs, TR_SLAY_HUMAN)) && (r_ptr->flags2 & RF2_HUMAN))
  82                 {
  83                         if (is_original_ap_and_seen(m_ptr))
  84                         {
  85                                 r_ptr->r_flags2 |= RF2_HUMAN;
  86                         }
  87                         if (mult < 17) mult = 17;
  88                 }
  89
  90                 if ((have_flag(flgs, TR_KILL_HUMAN)) && (r_ptr->flags2 & RF2_HUMAN))
  91                 {
  92                         if (is_original_ap_and_seen(m_ptr))
  93                         {
  94                                 r_ptr->r_flags2 |= RF2_HUMAN;
  95                         }
  96                         if (mult < 27) mult = 27;
  97                 }
  98
  99                 if ((have_flag(flgs, TR_SLAY_UNDEAD)) && (r_ptr->flags3 & RF3_UNDEAD))
 100                 {
 101                         if (is_original_ap_and_seen(m_ptr))
 102                         {
 103                                 r_ptr->r_flags3 |= RF3_UNDEAD;
 104                         }
 105                         if (mult < 20) mult = 20;
 106                 }
 107
 108                 if ((have_flag(flgs, TR_KILL_UNDEAD)) && (r_ptr->flags3 & RF3_UNDEAD))
 109                 {
 110                         if (is_original_ap_and_seen(m_ptr))
 111                         {
 112                                 r_ptr->r_flags3 |= RF3_UNDEAD;
 113                         }
 114                         if (mult < 30) mult = 30;
 115                 }
 116
 117                 if ((have_flag(flgs, TR_SLAY_DEMON)) && (r_ptr->flags3 & RF3_DEMON))
 118                 {
 119                         if (is_original_ap_and_seen(m_ptr))
 120                         {
 121                                 r_ptr->r_flags3 |= RF3_DEMON;
 122                         }
 123                         if (mult < 20) mult = 20;
 124                 }
 125
 126                 if ((have_flag(flgs, TR_KILL_DEMON)) && (r_ptr->flags3 & RF3_DEMON))
 127                 {
 128                         if (is_original_ap_and_seen(m_ptr))
 129                         {
 130                                 r_ptr->r_flags3 |= RF3_DEMON;
 131                         }
 132                         if (mult < 30) mult = 30;
 133                 }
 134
 135                 if ((have_flag(flgs, TR_SLAY_ORC)) && (r_ptr->flags3 & RF3_ORC))
 136                 {
 137                         if (is_original_ap_and_seen(m_ptr))
 138                         {
 139                                 r_ptr->r_flags3 |= RF3_ORC;
 140                         }
 141                         if (mult < 20) mult = 20;
 142                 }
 143
 144                 if ((have_flag(flgs, TR_KILL_ORC)) && (r_ptr->flags3 & RF3_ORC))
 145                 {
 146                         if (is_original_ap_and_seen(m_ptr))
 147                         {
 148                                 r_ptr->r_flags3 |= RF3_ORC;
 149                         }
 150                         if (mult < 30) mult = 30;
 151                 }
 152
 153                 if ((have_flag(flgs, TR_SLAY_TROLL)) && (r_ptr->flags3 & RF3_TROLL))
 154                 {
 155                         if (is_original_ap_and_seen(m_ptr))
 156                         {
 157                                 r_ptr->r_flags3 |= RF3_TROLL;
 158                         }
 159
 160                         if (mult < 20) mult = 20;
 161                 }
 162
 163                 if ((have_flag(flgs, TR_KILL_TROLL)) && (r_ptr->flags3 & RF3_TROLL))
 164                 {
 165                         if (is_original_ap_and_seen(m_ptr))
 166                         {
 167                                 r_ptr->r_flags3 |= RF3_TROLL;
 168                         }
 169                         if (mult < 30) mult = 30;
 170                 }
 171
 172                 if ((have_flag(flgs, TR_SLAY_GIANT)) && (r_ptr->flags3 & RF3_GIANT))
 173                 {
 174                         if (is_original_ap_and_seen(m_ptr))
 175                         {
 176                                 r_ptr->r_flags3 |= RF3_GIANT;
 177                         }
 178                         if (mult < 20) mult = 20;
 179                 }
 180
 181                 if ((have_flag(flgs, TR_KILL_GIANT)) && (r_ptr->flags3 & RF3_GIANT))
 182                 {
 183                         if (is_original_ap_and_seen(m_ptr))
 184                         {
 185                                 r_ptr->r_flags3 |= RF3_GIANT;
 186                         }
 187                         if (mult < 30) mult = 30;
 188                 }
 189
 190                 if ((have_flag(flgs, TR_SLAY_DRAGON)) && (r_ptr->flags3 & RF3_DRAGON))
 191                 {
 192                         if (is_original_ap_and_seen(m_ptr))
 193                         {
 194                                 r_ptr->r_flags3 |= RF3_DRAGON;
 195                         }
 196                         if (mult < 20) mult = 20;
 197                 }
 198
 199                 if ((have_flag(flgs, TR_KILL_DRAGON)) && (r_ptr->flags3 & RF3_DRAGON))
 200                 {
 201                         if (is_original_ap_and_seen(m_ptr))
 202                         {
 203                                 r_ptr->r_flags3 |= RF3_DRAGON;
 204                         }
 205                         if (mult < 30) mult = 30;
 206                         if ((o_ptr->name1 == ART_BARD_ARROW) && (m_ptr->r_idx == MON_SMAUG) &&
 207                                 (p_ptr->inventory_list[INVEN_BOW].name1 == ART_BARD))
 208                                 mult *= 5;
 209                 }
 210
 211                 if (have_flag(flgs, TR_BRAND_ACID))
 212                 {
 213                         /* Notice immunity */
 214                         if (r_ptr->flagsr & RFR_EFF_IM_ACID_MASK)
 215                         {
 216                                 if (is_original_ap_and_seen(m_ptr))
 217                                 {
 218                                         r_ptr->r_flagsr |= (r_ptr->flagsr & RFR_EFF_IM_ACID_MASK);
 219                                 }
 220                         }
 221                         else
 222                         {
 223                                 if (mult < 17) mult = 17;
 224                         }
 225                 }
 226
 227                 if (have_flag(flgs, TR_BRAND_ELEC))
 228                 {
 229                         /* Notice immunity */
 230                         if (r_ptr->flagsr & RFR_EFF_IM_ELEC_MASK)
 231                         {
 232                                 if (is_original_ap_and_seen(m_ptr))
 233                                 {
 234                                         r_ptr->r_flagsr |= (r_ptr->flagsr & RFR_EFF_IM_ELEC_MASK);
 235                                 }
 236                         }
 237                         else
 238                         {
 239                                 if (mult < 17) mult = 17;
 240                         }
 241                 }
 242
 243                 if (have_flag(flgs, TR_BRAND_FIRE))
 244                 {
 245                         /* Notice immunity */
 246                         if (r_ptr->flagsr & RFR_EFF_IM_FIRE_MASK)
 247                         {
 248                                 if (is_original_ap_and_seen(m_ptr))
 249                                 {
 250                                         r_ptr->r_flagsr |= (r_ptr->flagsr & RFR_EFF_IM_FIRE_MASK);
 251                                 }
 252                         }
 253                         /* Otherwise, take the damage */
 254                         else
 255                         {
 256                                 if (r_ptr->flags3 & RF3_HURT_FIRE)
 257                                 {
 258                                         if (mult < 25) mult = 25;
 259                                         if (is_original_ap_and_seen(m_ptr))
 260                                         {
 261                                                 r_ptr->r_flags3 |= RF3_HURT_FIRE;
 262                                         }
 263                                 }
 264                                 else if (mult < 17) mult = 17;
 265                         }
 266                 }
 267
 268                 if (have_flag(flgs, TR_BRAND_COLD))
 269                 {
 270                         /* Notice immunity */
 271                         if (r_ptr->flagsr & RFR_EFF_IM_COLD_MASK)
 272                         {
 273                                 if (is_original_ap_and_seen(m_ptr))
 274                                 {
 275                                         r_ptr->r_flagsr |= (r_ptr->flagsr & RFR_EFF_IM_COLD_MASK);
 276                                 }
 277                         }
 278                         /* Otherwise, take the damage */
 279                         else
 280                         {
 281                                 if (r_ptr->flags3 & RF3_HURT_COLD)
 282                                 {
 283                                         if (mult < 25) mult = 25;
 284                                         if (is_original_ap_and_seen(m_ptr))
 285                                         {
 286                                                 r_ptr->r_flags3 |= RF3_HURT_COLD;
 287                                         }
 288                                 }
 289                                 else if (mult < 17) mult = 17;
 290                         }
 291                 }
 292
 293                 if (have_flag(flgs, TR_BRAND_POIS))
 294                 {
 295                         /* Notice immunity */
 296                         if (r_ptr->flagsr & RFR_EFF_IM_POIS_MASK)
 297                         {
 298                                 if (is_original_ap_and_seen(m_ptr))
 299                                 {
 300                                         r_ptr->r_flagsr |= (r_ptr->flagsr & RFR_EFF_IM_POIS_MASK);
 301                                 }
 302                         }
 303                         /* Otherwise, take the damage */
 304                         else
 305                         {
 306                                 if (mult < 17) mult = 17;
 307                         }
 308                 }
 309
 310                 if ((have_flag(flgs, TR_FORCE_WEAPON)) && (p_ptr->csp > (p_ptr->msp / 30)))
 311                 {
 312                         p_ptr->csp -= (1 + (p_ptr->msp / 30));
 313                         p_ptr->redraw |= (PR_MANA);
 314                         mult = mult * 5 / 2;
 315                 }
 316                 break;
 317         }
 318         }
 319
 320         /* Sniper */
 321         if (snipe_type) mult = tot_dam_aux_snipe(mult, m_ptr, snipe_type);
 322
 323         /* Return the total damage */
 324         return (tdam * mult / 10);
 325 }
 326
 327
 328 /*!
 329  * @brief 射撃処理実行 /
 330  * Fire an object from the pack or floor.
 331  * @param item 射撃するオブジェクトの所持ID
 332  * @param j_ptr 射撃武器のオブジェクト参照ポインタ
 333  * @return なし
 334  * @details
 335  * <pre>
 336  * You may only fire items that "match" your missile launcher.
 337  * You must use slings + pebbles/shots, bows + arrows, xbows + bolts.
 338  * See "calc_bonuses()" for more calculations and such.
 339  * Note that "firing" a missile is MUCH better than "throwing" it.
 340  * Note: "unseen" monsters are very hard to hit.
 341  * Objects are more likely to break if they "attempt" to hit a monster.
 342  * Rangers (with Bows) and Anyone (with "Extra Shots") get extra shots.
 343  * The "extra shot" code works by decreasing the amount of energy
 344  * required to make each shot, spreading the shots out over time.
 345  * Note that when firing missiles, the launcher multiplier is applied
 346  * after all the bonuses are added in, making multipliers very useful.
 347  * Note that Bows of "Extra Might" get extra range and an extra bonus
 348  * for the damage multiplier.
 349  * Note that Bows of "Extra Shots" give an extra shot.
 350  * </pre>
 351  */
 352 void exe_fire(INVENTORY_IDX item, object_type *j_ptr, SPELL_IDX snipe_type)
 353 {
 354         DIRECTION dir;
 355         int i;
 356         POSITION y, x, ny, nx, ty, tx, prev_y, prev_x;
 357         int tdam_base, tdis, thits, tmul;
 358         int bonus, chance;
 359         int cur_dis, visible;
 360         PERCENTAGE j;
 361
 362         object_type forge;
 363         object_type *q_ptr;
 364
 365         object_type *o_ptr;
 366
 367         bool hit_body = FALSE;
 368
 369         GAME_TEXT o_name[MAX_NLEN];
 370
 371         u16b path_g[512];       /* For calcuration of path length */
 372
 373         int msec = delay_factor * delay_factor * delay_factor;
 374
 375         /* STICK TO */
 376         bool stick_to = FALSE;
 377
 378         /* Access the item (if in the pack) */
 379         if (item >= 0)
 380         {
 381                 o_ptr = &p_ptr->inventory_list[item];
 382         }
 383         else
 384         {
 385                 o_ptr = &current_floor_ptr->o_list[0 - item];
 386         }
 387
 388         /* Sniper - Cannot shot a single arrow twice */
 389         if ((snipe_type == SP_DOUBLE) && (o_ptr->number < 2)) snipe_type = SP_NONE;
 390
 391         object_desc(o_name, o_ptr, OD_OMIT_PREFIX);
 392
 393         /* Use the proper number of shots */
 394         thits = p_ptr->num_fire;
 395
 396         /* Use a base distance */
 397         tdis = 10;
 398
 399         /* Base damage from thrown object plus launcher bonus */
 400         tdam_base = damroll(o_ptr->dd, o_ptr->ds) + o_ptr->to_d + j_ptr->to_d;
 401
 402         /* Actually "fire" the object */
 403         bonus = (p_ptr->to_h_b + o_ptr->to_h + j_ptr->to_h);
 404         if ((j_ptr->sval == SV_LIGHT_XBOW) || (j_ptr->sval == SV_HEAVY_XBOW))
 405                 chance = (p_ptr->skill_thb + (p_ptr->weapon_exp[0][j_ptr->sval] / 400 + bonus) * BTH_PLUS_ADJ);
 406         else
 407                 chance = (p_ptr->skill_thb + ((p_ptr->weapon_exp[0][j_ptr->sval] - (WEAPON_EXP_MASTER / 2)) / 200 + bonus) * BTH_PLUS_ADJ);
 408
 409         p_ptr->energy_use = bow_energy(j_ptr->sval);
 410         tmul = bow_tmul(j_ptr->sval);
 411
 412         /* Get extra "power" from "extra might" */
 413         if (p_ptr->xtra_might) tmul++;
 414
 415         tmul = tmul * (100 + (int)(adj_str_td[p_ptr->stat_ind[A_STR]]) - 128);
 416
 417         /* Boost the damage */
 418         tdam_base *= tmul;
 419         tdam_base /= 100;
 420
 421         /* Base range */
 422         tdis = 13 + tmul / 80;
 423         if ((j_ptr->sval == SV_LIGHT_XBOW) || (j_ptr->sval == SV_HEAVY_XBOW))
 424         {
 425                 if (p_ptr->concent)
 426                         tdis -= (5 - (p_ptr->concent + 1) / 2);
 427                 else
 428                         tdis -= 5;
 429         }
 430
 431         project_length = tdis + 1;
 432
 433         /* Get a direction (or cancel) */
 434         if (!get_aim_dir(&dir))
 435         {
 436                 free_turn(p_ptr);
 437
 438                 if (snipe_type == SP_AWAY) snipe_type = SP_NONE;
 439
 440                 /* need not to reset project_length (already did)*/
 441
 442                 return;
 443         }
 444
 445         /* Predict the "target" location */
 446         tx = p_ptr->x + 99 * ddx[dir];
 447         ty = p_ptr->y + 99 * ddy[dir];
 448
 449         /* Check for "target request" */
 450         if ((dir == 5) && target_okay())
 451         {
 452                 tx = target_col;
 453                 ty = target_row;
 454         }
 455
 456         /* Get projection path length */
 457         tdis = project_path(path_g, project_length, p_ptr->y, p_ptr->x, ty, tx, PROJECT_PATH | PROJECT_THRU) - 1;
 458
 459         project_length = 0; /* reset to default */
 460
 461         /* Don't shoot at my feet */
 462         if (tx == p_ptr->x && ty == p_ptr->y)
 463         {
 464                 free_turn(p_ptr);
 465
 466                 /* project_length is already reset to 0 */
 467
 468                 return;
 469         }
 470
 471
 472         /* Take a (partial) current_world_ptr->game_turn */
 473         p_ptr->energy_use = (p_ptr->energy_use / thits);
 474         is_fired = TRUE;
 475
 476         /* Sniper - Difficult to shot twice at 1 current_world_ptr->game_turn */
 477         if (snipe_type == SP_DOUBLE)  p_ptr->concent = (p_ptr->concent + 1) / 2;
 478
 479         /* Sniper - Repeat shooting when double shots */
 480         for (i = 0; i < ((snipe_type == SP_DOUBLE) ? 2 : 1); i++)
 481         {
 482
 483                 /* Start at the player */
 484                 y = p_ptr->y;
 485                 x = p_ptr->x;
 486                 q_ptr = &forge;
 487
 488                 /* Obtain a local object */
 489                 object_copy(q_ptr, o_ptr);
 490
 491                 /* Single object */
 492                 q_ptr->number = 1;
 493
 494                 /* Reduce and describe p_ptr->inventory_list */
 495                 if (item >= 0)
 496                 {
 497                         inven_item_increase(item, -1);
 498                         inven_item_describe(item);
 499                         inven_item_optimize(item);
 500                 }
 501
 502                 /* Reduce and describe floor item */
 503                 else
 504                 {
 505                         floor_item_increase(0 - item, -1);
 506                         floor_item_optimize(0 - item);
 507                 }
 508
 509                 sound(SOUND_SHOOT);
 510                 handle_stuff();
 511
 512                 prev_y = y;
 513                 prev_x = x;
 514
 515                 /* The shot does not hit yet */
 516                 hit_body = FALSE;
 517
 518                 /* Travel until stopped */
 519                 for (cur_dis = 0; cur_dis <= tdis; )
 520                 {
 521                         grid_type *g_ptr;
 522
 523                         /* Hack -- Stop at the target */
 524                         if ((y == ty) && (x == tx)) break;
 525
 526                         /* Calculate the new location (see "project()") */
 527                         ny = y;
 528                         nx = x;
 529                         mmove2(&ny, &nx, p_ptr->y, p_ptr->x, ty, tx);
 530
 531                         /* Shatter Arrow */
 532                         if (snipe_type == SP_KILL_WALL)
 533                         {
 534                                 g_ptr = &current_floor_ptr->grid_array[ny][nx];
 535
 536                                 if (cave_have_flag_grid(g_ptr, FF_HURT_ROCK) && !g_ptr->m_idx)
 537                                 {
 538                                         if (g_ptr->info & (CAVE_MARK)) msg_print(_("岩が砕け散った。", "Wall rocks were shattered."));
 539                                         /* Forget the wall */
 540                                         g_ptr->info &= ~(CAVE_MARK);
 541                                         p_ptr->update |= (PU_VIEW | PU_LITE | PU_FLOW | PU_MON_LITE);
 542
 543                                         /* Destroy the wall */
 544                                         cave_alter_feat(ny, nx, FF_HURT_ROCK);
 545
 546                                         hit_body = TRUE;
 547                                         break;
 548                                 }
 549                         }
 550
 551                         /* Stopped by walls/doors */
 552                         if (!cave_have_flag_bold(ny, nx, FF_PROJECT) && !current_floor_ptr->grid_array[ny][nx].m_idx) break;
 553
 554                         /* Advance the distance */
 555                         cur_dis++;
 556
 557                         /* Sniper */
 558                         if (snipe_type == SP_LITE)
 559                         {
 560                                 current_floor_ptr->grid_array[ny][nx].info |= (CAVE_GLOW);
 561                                 note_spot(ny, nx);
 562                                 lite_spot(ny, nx);
 563                         }
 564
 565                         /* The player can see the (on screen) missile */
 566                         if (panel_contains(ny, nx) && player_can_see_bold(ny, nx))
 567                         {
 568                                 char c = object_char(q_ptr);
 569                                 byte a = object_attr(q_ptr);
 570
 571                                 /* Draw, Hilite, Fresh, Pause, Erase */
 572                                 print_rel(c, a, ny, nx);
 573                                 move_cursor_relative(ny, nx);
 574                                 Term_fresh();
 575                                 Term_xtra(TERM_XTRA_DELAY, msec);
 576                                 lite_spot(ny, nx);
 577                                 Term_fresh();
 578                         }
 579
 580                         /* The player cannot see the missile */
 581                         else
 582                         {
 583                                 /* Pause anyway, for consistancy */
 584                                 Term_xtra(TERM_XTRA_DELAY, msec);
 585                         }
 586
 587                         /* Sniper */
 588                         if (snipe_type == SP_KILL_TRAP)
 589                         {
 590                                 project(0, 0, ny, nx, 0, GF_KILL_TRAP,
 591                                         (PROJECT_JUMP | PROJECT_HIDE | PROJECT_GRID | PROJECT_ITEM), -1);
 592                         }
 593
 594                         /* Sniper */
 595                         if (snipe_type == SP_EVILNESS)
 596                         {
 597                                 current_floor_ptr->grid_array[ny][nx].info &= ~(CAVE_GLOW | CAVE_MARK);
 598                                 note_spot(ny, nx);
 599                                 lite_spot(ny, nx);
 600                         }
 601
 602                         prev_y = y;
 603                         prev_x = x;
 604
 605                         /* Save the new location */
 606                         x = nx;
 607                         y = ny;
 608
 609                         /* Monster here, Try to hit it */
 610                         if (current_floor_ptr->grid_array[y][x].m_idx)
 611                         {
 612                                 grid_type *c_mon_ptr = &current_floor_ptr->grid_array[y][x];
 613
 614                                 monster_type *m_ptr = &current_floor_ptr->m_list[c_mon_ptr->m_idx];
 615                                 monster_race *r_ptr = &r_info[m_ptr->r_idx];
 616
 617                                 /* Check the visibility */
 618                                 visible = m_ptr->ml;
 619
 620                                 /* Note the collision */
 621                                 hit_body = TRUE;
 622
 623                                 if (MON_CSLEEP(m_ptr))
 624                                 {
 625                                         if (!(r_ptr->flags3 & RF3_EVIL) || one_in_(5)) chg_virtue(V_COMPASSION, -1);
 626                                         if (!(r_ptr->flags3 & RF3_EVIL) || one_in_(5)) chg_virtue(V_HONOUR, -1);
 627                                 }
 628
 629                                 if ((r_ptr->level + 10) > p_ptr->lev)
 630                                 {
 631                                         int now_exp = p_ptr->weapon_exp[0][j_ptr->sval];
 632                                         if (now_exp < s_info[p_ptr->pclass].w_max[0][j_ptr->sval])
 633                                         {
 634                                                 SUB_EXP amount = 0;
 635                                                 if (now_exp < WEAPON_EXP_BEGINNER) amount = 80;
 636                                                 else if (now_exp < WEAPON_EXP_SKILLED) amount = 25;
 637                                                 else if ((now_exp < WEAPON_EXP_EXPERT) && (p_ptr->lev > 19)) amount = 10;
 638                                                 else if (p_ptr->lev > 34) amount = 2;
 639                                                 p_ptr->weapon_exp[0][j_ptr->sval] += amount;
 640                                                 p_ptr->update |= (PU_BONUS);
 641                                         }
 642                                 }
 643
 644                                 if (p_ptr->riding)
 645                                 {
 646                                         if ((p_ptr->skill_exp[GINOU_RIDING] < s_info[p_ptr->pclass].s_max[GINOU_RIDING])
 647                                                 && ((p_ptr->skill_exp[GINOU_RIDING] - (RIDING_EXP_BEGINNER * 2)) / 200 < r_info[current_floor_ptr->m_list[p_ptr->riding].r_idx].level)
 648                                                 && one_in_(2))
 649                                         {
 650                                                 p_ptr->skill_exp[GINOU_RIDING] += 1;
 651                                                 p_ptr->update |= (PU_BONUS);
 652                                         }
 653                                 }
 654
 655                                 /* Did we hit it (penalize range) */
 656                                 if (test_hit_fire(chance - cur_dis, m_ptr, m_ptr->ml, o_name))
 657                                 {
 658                                         bool fear = FALSE;
 659                                         int tdam = tdam_base;
 660
 661                                         /* Get extra damage from concentration */
 662                                         if (p_ptr->concent) tdam = boost_concentration_damage(tdam);
 663
 664                                         /* Handle unseen monster */
 665                                         if (!visible)
 666                                         {
 667                                                 /* Invisible monster */
 668                                                 msg_format(_("%sが敵を捕捉した。", "The %s finds a mark."), o_name);
 669                                         }
 670
 671                                         /* Handle visible monster */
 672                                         else
 673                                         {
 674                                                 GAME_TEXT m_name[MAX_NLEN];
 675
 676                                                 /* Get "the monster" or "it" */
 677                                                 monster_desc(m_name, m_ptr, 0);
 678
 679                                                 msg_format(_("%sが%sに命中した。", "The %s hits %s."), o_name, m_name);
 680
 681                                                 if (m_ptr->ml)
 682                                                 {
 683                                                         if (!p_ptr->image) monster_race_track(m_ptr->ap_r_idx);
 684                                                         health_track(c_mon_ptr->m_idx);
 685                                                 }
 686                                         }
 687
 688                                         if (snipe_type == SP_NEEDLE)
 689                                         {
 690                                                 if ((randint1(randint1(r_ptr->level / (3 + p_ptr->concent)) + (8 - p_ptr->concent)) == 1)
 691                                                         && !(r_ptr->flags1 & RF1_UNIQUE) && !(r_ptr->flags7 & RF7_UNIQUE2))
 692                                                 {
 693                                                         GAME_TEXT m_name[MAX_NLEN];
 694
 695                                                         /* Get "the monster" or "it" */
 696                                                         monster_desc(m_name, m_ptr, 0);
 697
 698                                                         tdam = m_ptr->hp + 1;
 699                                                         msg_format(_("%sの急所に突き刺さった！", "Your shot sticked on a fatal spot of %s!"), m_name);
 700                                                 }
 701                                                 else tdam = 1;
 702                                         }
 703                                         else
 704                                         {
 705                                                 /* Apply special damage */
 706                                                 tdam = tot_dam_aux_shot(q_ptr, tdam, m_ptr, snipe_type);
 707                                                 tdam = critical_shot(q_ptr->weight, q_ptr->to_h, j_ptr->to_h, tdam);
 708
 709                                                 /* No negative damage */
 710                                                 if (tdam < 0) tdam = 0;
 711
 712                                                 /* Modify the damage */
 713                                                 tdam = mon_damage_mod(m_ptr, tdam, FALSE);
 714                                         }
 715
 716                                         msg_format_wizard(CHEAT_MONSTER,
 717                                                 _("%dのダメージを与えた。(残りHP %d/%d(%d))", "You do %d damage. (left HP %d/%d(%d))"),
 718                                                 tdam, m_ptr->hp - tdam, m_ptr->maxhp, m_ptr->max_maxhp);
 719
 720                                         /* Sniper */
 721                                         if (snipe_type == SP_EXPLODE)
 722                                         {
 723                                                 u16b flg = (PROJECT_STOP | PROJECT_JUMP | PROJECT_KILL | PROJECT_GRID);
 724
 725                                                 sound(SOUND_EXPLODE); /* No explode sound - use breath fire instead */
 726                                                 project(0, ((p_ptr->concent + 1) / 2 + 1), ny, nx, tdam, GF_MISSILE, flg, -1);
 727                                                 break;
 728                                         }
 729
 730                                         /* Sniper */
 731                                         if (snipe_type == SP_HOLYNESS)
 732                                         {
 733                                                 current_floor_ptr->grid_array[ny][nx].info |= (CAVE_GLOW);
 734                                                 note_spot(ny, nx);
 735                                                 lite_spot(ny, nx);
 736                                         }
 737
 738                                         /* Hit the monster, check for death */
 739                                         if (mon_take_hit(c_mon_ptr->m_idx, tdam, &fear, extract_note_dies(real_r_idx(m_ptr))))
 740                                         {
 741                                                 /* Dead monster */
 742                                         }
 743
 744                                         /* No death */
 745                                         else
 746                                         {
 747                                                 /* STICK TO */
 748                                                 if (object_is_fixed_artifact(q_ptr) &&
 749                                                         (p_ptr->pclass != CLASS_SNIPER || p_ptr->concent == 0))
 750                                                 {
 751                                                         GAME_TEXT m_name[MAX_NLEN];
 752
 753                                                         monster_desc(m_name, m_ptr, 0);
 754
 755                                                         stick_to = TRUE;
 756                                                         msg_format(_("%sは%sに突き刺さった！", "%^s have stuck into %s!"), o_name, m_name);
 757                                                 }
 758
 759                                                 message_pain(c_mon_ptr->m_idx, tdam);
 760
 761                                                 /* Anger the monster */
 762                                                 if (tdam > 0) anger_monster(m_ptr);
 763
 764                                                 if (fear && m_ptr->ml)
 765                                                 {
 766                                                         GAME_TEXT m_name[MAX_NLEN];
 767                                                         sound(SOUND_FLEE);
 768                                                         monster_desc(m_name, m_ptr, 0);
 769                                                         msg_format(_("%^sは恐怖して逃げ出した！", "%^s flees in terror!"), m_name);
 770                                                 }
 771
 772                                                 set_target(m_ptr, p_ptr->y, p_ptr->x);
 773
 774                                                 /* Sniper */
 775                                                 if (snipe_type == SP_RUSH)
 776                                                 {
 777                                                         int n = randint1(5) + 3;
 778                                                         MONSTER_IDX m_idx = c_mon_ptr->m_idx;
 779
 780                                                         for (; cur_dis <= tdis; )
 781                                                         {
 782                                                                 POSITION ox = nx;
 783                                                                 POSITION oy = ny;
 784
 785                                                                 if (!n) break;
 786
 787                                                                 /* Calculate the new location (see "project()") */
 788                                                                 mmove2(&ny, &nx, p_ptr->y, p_ptr->x, ty, tx);
 789
 790                                                                 /* Stopped by wilderness boundary */
 791                                                                 if (!in_bounds2(ny, nx)) break;
 792
 793                                                                 /* Stopped by walls/doors */
 794                                                                 if (!player_can_enter(current_floor_ptr->grid_array[ny][nx].feat, 0)) break;
 795
 796                                                                 /* Stopped by monsters */
 797                                                                 if (!cave_empty_bold(ny, nx)) break;
 798
 799                                                                 current_floor_ptr->grid_array[ny][nx].m_idx = m_idx;
 800                                                                 current_floor_ptr->grid_array[oy][ox].m_idx = 0;
 801
 802                                                                 m_ptr->fx = nx;
 803                                                                 m_ptr->fy = ny;
 804
 805                                                                 update_monster(c_mon_ptr->m_idx, TRUE);
 806
 807                                                                 lite_spot(ny, nx);
 808                                                                 lite_spot(oy, ox);
 809
 810                                                                 Term_fresh();
 811                                                                 Term_xtra(TERM_XTRA_DELAY, msec);
 812
 813                                                                 x = nx;
 814                                                                 y = ny;
 815                                                                 cur_dis++;
 816                                                                 n--;
 817                                                         }
 818                                                 }
 819                                         }
 820                                 }
 821
 822                                 /* Sniper */
 823                                 if (snipe_type == SP_PIERCE)
 824                                 {
 825                                         if (p_ptr->concent < 1) break;
 826                                         p_ptr->concent--;
 827                                         continue;
 828                                 }
 829
 830                                 /* Stop looking */
 831                                 break;
 832                         }
 833                 }
 834
 835                 /* Chance of breakage (during attacks) */
 836                 j = (hit_body ? breakage_chance(q_ptr, snipe_type) : 0);
 837
 838                 if (stick_to)
 839                 {
 840                         MONSTER_IDX m_idx = current_floor_ptr->grid_array[y][x].m_idx;
 841                         monster_type *m_ptr = &current_floor_ptr->m_list[m_idx];
 842                         OBJECT_IDX o_idx = o_pop();
 843
 844                         if (!o_idx)
 845                         {
 846                                 msg_format(_("%sはどこかへ行った。", "The %s have gone to somewhere."), o_name);
 847                                 if (object_is_fixed_artifact(q_ptr))
 848                                 {
 849                                         a_info[j_ptr->name1].cur_num = 0;
 850                                 }
 851                                 return;
 852                         }
 853
 854                         o_ptr = &current_floor_ptr->o_list[o_idx];
 855                         object_copy(o_ptr, q_ptr);
 856
 857                         /* Forget mark */
 858                         o_ptr->marked &= OM_TOUCHED;
 859
 860                         /* Forget location */
 861                         o_ptr->iy = o_ptr->ix = 0;
 862
 863                         /* Memorize monster */
 864                         o_ptr->held_m_idx = m_idx;
 865
 866                         /* Build a stack */
 867                         o_ptr->next_o_idx = m_ptr->hold_o_idx;
 868
 869                         /* Carry object */
 870                         m_ptr->hold_o_idx = o_idx;
 871                 }
 872                 else if (cave_have_flag_bold(y, x, FF_PROJECT))
 873                 {
 874                         /* Drop (or break) near that location */
 875                         (void)drop_near(q_ptr, j, y, x);
 876                 }
 877                 else
 878                 {
 879                         /* Drop (or break) near that location */
 880                         (void)drop_near(q_ptr, j, prev_y, prev_x);
 881                 }
 882
 883                 /* Sniper - Repeat shooting when double shots */
 884         }
 885
 886         /* Sniper - Loose his/her concentration after any shot */
 887         if (p_ptr->concent) reset_concentration(FALSE);
 888 }
 889
 890
 891 /*!
 892 * @brief プレイヤーからモンスターへの射撃命中判定 /
 893 * Determine if the player "hits" a monster (normal combat).
 894 * @param chance 基本命中値
 895 * @param m_ptr モンスターの構造体参照ポインタ
 896 * @param vis 目標を視界に捕らえているならばTRUEを指定
 897 * @param o_name メッセージ表示時のモンスター名
 898 * @return 命中と判定された場合TRUEを返す
 899 * @note Always miss 5%, always hit 5%, otherwise random.
 900 */
 901 bool test_hit_fire(int chance, monster_type *m_ptr, int vis, char* o_name)
 902 {
 903         int k;
 904         ARMOUR_CLASS ac;
 905         monster_race *r_ptr = &r_info[m_ptr->r_idx];
 906
 907         /* Percentile dice */
 908         k = randint1(100);
 909
 910         /* Snipers with high-concentration reduce instant miss percentage.*/
 911         k += p_ptr->concent;
 912
 913         /* Hack -- Instant miss or hit */
 914         if (k <= 5) return (FALSE);
 915         if (k > 95) return (TRUE);
 916
 917         if (p_ptr->pseikaku == SEIKAKU_NAMAKE)
 918                 if (one_in_(20)) return (FALSE);
 919
 920         /* Never hit */
 921         if (chance <= 0) return (FALSE);
 922
 923         ac = r_ptr->ac;
 924         if (p_ptr->concent)
 925         {
 926                 ac *= (8 - p_ptr->concent);
 927                 ac /= 8;
 928         }
 929
 930         if (m_ptr->r_idx == MON_GOEMON && !MON_CSLEEP(m_ptr)) ac *= 3;
 931
 932         /* Invisible monsters are harder to hit */
 933         if (!vis) chance = (chance + 1) / 2;
 934
 935         /* Power competes against armor */
 936         if (randint0(chance) < (ac * 3 / 4))
 937         {
 938                 if (m_ptr->r_idx == MON_GOEMON && !MON_CSLEEP(m_ptr))
 939                 {
 940                         GAME_TEXT m_name[MAX_NLEN];
 941
 942                         /* Extract monster name */
 943                         monster_desc(m_name, m_ptr, 0);
 944                         msg_format(_("%sは%sを斬り捨てた！", "%s cuts down %s!"), m_name, o_name);
 945                 }
 946                 return (FALSE);
 947         }
 948
 949         /* Assume hit */
 950         return (TRUE);
 951 }
 952
 953
 954
 955
 956 /*!
 957 * @brief プレイヤーからモンスターへの射撃クリティカル判定 /
 958 * Critical hits (from objects thrown by player) Factor in item weight, total plusses, and player level.
 959 * @param weight 矢弾の重量
 960 * @param plus_ammo 矢弾の命中修正
 961 * @param plus_bow 弓の命中修正
 962 * @param dam 現在算出中のダメージ値
 963 * @return クリティカル修正が入ったダメージ値
 964 */
 965 HIT_POINT critical_shot(WEIGHT weight, int plus_ammo, int plus_bow, HIT_POINT dam)
 966 {
 967         int i, k;
 968         object_type *j_ptr = &p_ptr->inventory_list[INVEN_BOW];
 969
 970         /* Extract "shot" power */
 971         i = p_ptr->to_h_b + plus_ammo;
 972
 973         if (p_ptr->tval_ammo == TV_BOLT)
 974                 i = (p_ptr->skill_thb + (p_ptr->weapon_exp[0][j_ptr->sval] / 400 + i) * BTH_PLUS_ADJ);
 975         else
 976                 i = (p_ptr->skill_thb + ((p_ptr->weapon_exp[0][j_ptr->sval] - (WEAPON_EXP_MASTER / 2)) / 200 + i) * BTH_PLUS_ADJ);
 977
 978
 979         /* Snipers can shot more critically with crossbows */
 980         if (p_ptr->concent) i += ((i * p_ptr->concent) / 5);
 981         if ((p_ptr->pclass == CLASS_SNIPER) && (p_ptr->tval_ammo == TV_BOLT)) i *= 2;
 982
 983         /* Good bow makes more critical */
 984         i += plus_bow * 8 * (p_ptr->concent ? p_ptr->concent + 5 : 5);
 985
 986         /* Critical hit */
 987         if (randint1(10000) <= i)
 988         {
 989                 k = weight * randint1(500);
 990
 991                 if (k < 900)
 992                 {
 993                         msg_print(_("手ごたえがあった！", "It was a good hit!"));
 994                         dam += (dam / 2);
 995                 }
 996                 else if (k < 1350)
 997                 {
 998                         msg_print(_("かなりの手ごたえがあった！", "It was a great hit!"));
 999                         dam *= 2;
1000                 }
1001                 else
1002                 {
1003                         msg_print(_("会心の一撃だ！", "It was a superb hit!"));
1004                         dam *= 3;
1005                 }
1006         }
1007
1008         return (dam);
1009 }
1010
1011
1012
1013
1014 /*!
1015  * @brief 射撃武器の攻撃に必要な基本消費エネルギーを返す/Return bow energy
1016  * @param sval 射撃武器のアイテム副分類ID
1017  * @return 消費する基本エネルギー
1018  */
1019 ENERGY bow_energy(OBJECT_SUBTYPE_VALUE sval)
1020 {
1021         ENERGY energy = 10000;
1022
1023         /* Analyze the launcher */
1024         switch (sval)
1025         {
1026                 /* Sling and ammo */
1027         case SV_SLING:
1028         {
1029                 energy = 8000;
1030                 break;
1031         }
1032
1033         /* Short Bow and Arrow */
1034         case SV_SHORT_BOW:
1035         {
1036                 energy = 10000;
1037                 break;
1038         }
1039
1040         /* Long Bow and Arrow */
1041         case SV_LONG_BOW:
1042         {
1043                 energy = 10000;
1044                 break;
1045         }
1046
1047         /* Bow of irresponsiblity and Arrow */
1048         case SV_NAMAKE_BOW:
1049         {
1050                 energy = 7777;
1051                 break;
1052         }
1053
1054         /* Light Crossbow and Bolt */
1055         case SV_LIGHT_XBOW:
1056         {
1057                 energy = 12000;
1058                 break;
1059         }
1060
1061         /* Heavy Crossbow and Bolt */
1062         case SV_HEAVY_XBOW:
1063         {
1064                 energy = 13333;
1065                 break;
1066         }
1067         }
1068
1069         return (energy);
1070 }
1071
1072
1073 /*
1074  * Return bow tmul
1075  */
1076 int bow_tmul(OBJECT_SUBTYPE_VALUE sval)
1077 {
1078         int tmul = 0;
1079
1080         /* Analyze the launcher */
1081         switch (sval)
1082         {
1083                 /* Sling and ammo */
1084         case SV_SLING:
1085         {
1086                 tmul = 2;
1087                 break;
1088         }
1089
1090         /* Short Bow and Arrow */
1091         case SV_SHORT_BOW:
1092         {
1093                 tmul = 2;
1094                 break;
1095         }
1096
1097         /* Long Bow and Arrow */
1098         case SV_LONG_BOW:
1099         {
1100                 tmul = 3;
1101                 break;
1102         }
1103
1104         /* Bow of irresponsiblity and Arrow */
1105         case SV_NAMAKE_BOW:
1106         {
1107                 tmul = 3;
1108                 break;
1109         }
1110
1111         /* Light Crossbow and Bolt */
1112         case SV_LIGHT_XBOW:
1113         {
1114                 tmul = 3;
1115                 break;
1116         }
1117
1118         /* Heavy Crossbow and Bolt */
1119         case SV_HEAVY_XBOW:
1120         {
1121                 tmul = 4;
1122                 break;
1123         }
1124         }
1125
1126         return (tmul);
1127 }
1128
1129
1130 /*!
1131  * @brief 射撃時クリティカルによるダメージ期待値修正計算（スナイパーの集中処理と武器経験値） / critical happens at i / 10000
1132  * @param plus_ammo 矢弾のダメージ修正
1133  * @param plus_bow 弓のダメージ修正
1134  * @return ダメージ期待値
1135  * @note 基本ダメージ量と重量はこの部位では計算に加わらない。
1136  */
1137 HIT_POINT calc_crit_ratio_shot(HIT_POINT plus_ammo, HIT_POINT plus_bow)
1138 {
1139         HIT_POINT i;
1140         object_type *j_ptr = &p_ptr->inventory_list[INVEN_BOW];
1141
1142         /* Extract "shot" power */
1143         i = p_ptr->to_h_b + plus_ammo;
1144
1145         if (p_ptr->tval_ammo == TV_BOLT)
1146                 i = (p_ptr->skill_thb + (p_ptr->weapon_exp[0][j_ptr->sval] / 400 + i) * BTH_PLUS_ADJ);
1147         else
1148                 i = (p_ptr->skill_thb + ((p_ptr->weapon_exp[0][j_ptr->sval] - (WEAPON_EXP_MASTER / 2)) / 200 + i) * BTH_PLUS_ADJ);
1149
1150         /* Snipers can shot more critically with crossbows */
1151         if (p_ptr->concent) i += ((i * p_ptr->concent) / 5);
1152         if ((p_ptr->pclass == CLASS_SNIPER) && (p_ptr->tval_ammo == TV_BOLT)) i *= 2;
1153
1154         /* Good bow makes more critical */
1155         i += plus_bow * 8 * (p_ptr->concent ? p_ptr->concent + 5 : 5);
1156
1157         if (i < 0) i = 0;
1158
1159         return i;
1160 }
1161
1162 /*!
1163  * @brief 射撃時クリティカルによるダメージ期待値修正計算（重量依存部分） / critical happens at i / 10000
1164  * @param weight 武器の重量
1165  * @param plus_ammo 矢弾のダメージ修正
1166  * @param plus_bow 弓のダメージ修正
1167  * @param dam 基本ダメージ量
1168  * @return ダメージ期待値
1169  */
1170 HIT_POINT calc_expect_crit_shot(WEIGHT weight, int plus_ammo, int plus_bow, HIT_POINT dam)
1171 {
1172         u32b num;
1173         int i, k, crit;
1174         i = calc_crit_ratio_shot(plus_ammo, plus_bow);
1175
1176         k = 0;
1177         num = 0;
1178
1179         crit = MIN(500, 900 / weight);
1180         num += dam * 3 / 2 * crit;
1181         k = crit;
1182
1183         crit = MIN(500, 1350 / weight);
1184         crit -= k;
1185         num += dam * 2 * crit;
1186         k += crit;
1187
1188         if (k < 500)
1189         {
1190                 crit = 500 - k;
1191                 num += dam * 3 * crit;
1192         }
1193
1194         num /= 500;
1195
1196         num *= i;
1197         num += (10000 - i) * dam;
1198         num /= 10000;
1199
1200         return num;
1201 }
1202
1203 /*!
1204  * @brief 攻撃時クリティカルによるダメージ期待値修正計算（重量と毒針処理） / critical happens at i / 10000
1205  * @param weight 武器の重量
1206  * @param plus 武器のダメージ修正
1207  * @param dam 基本ダメージ
1208  * @param meichuu 命中値
1209  * @param dokubari 毒針処理か否か
1210  * @return ダメージ期待値
1211  */
1212 HIT_POINT calc_expect_crit(WEIGHT weight, int plus, HIT_POINT dam, s16b meichuu, bool dokubari)
1213 {
1214         u32b k, num;
1215         int i;
1216
1217         if (dokubari) return dam;
1218
1219         i = (weight + (meichuu * 3 + plus * 5) + p_ptr->skill_thn);
1220         if (i < 0) i = 0;
1221
1222         k = weight;
1223         num = 0;
1224
1225         if (k < 400)                                            num += (2 * dam + 5) * (400 - k);
1226         if (k < 700)                                            num += (2 * dam + 10) * (MIN(700, k + 650) - MAX(400, k));
1227         if (k > (700 - 650) && k < 900)         num += (3 * dam + 15) * (MIN(900, k + 650) - MAX(700, k));
1228         if (k > (900 - 650) && k < 1300)                num += (3 * dam + 20) * (MIN(1300, k + 650) - MAX(900, k));
1229         if (k > (1300 - 650))                                   num += (7 * dam / 2 + 25) * MIN(650, k - (1300 - 650));
1230
1231         num /= 650;
1232         if (p_ptr->pclass == CLASS_NINJA)
1233         {
1234                 num *= i;
1235                 num += (4444 - i) * dam;
1236                 num /= 4444;
1237         }
1238         else
1239         {
1240                 num *= i;
1241                 num += (5000 - i) * dam;
1242                 num /= 5000;
1243         }
1244
1245         return num;
1246 }
1247