src/combat/shoot.c

   1 #include "combat/shoot.h"
   2 #include "art-definition/art-bow-types.h"
   3 #include "mind/mind-sniper.h"
   4 #include "core/stuff-handler.h"
   5 #include "effect/effect-characteristics.h"
   6 #include "effect/spells-effect-util.h"
   7 #include "floor/floor-object.h"
   8 #include "game-option/special-options.h"
   9 #include "grid/grid.h"
  10 #include "inventory/inventory-object.h"
  11 #include "io/targeting.h"
  12 #include "main/sound-definitions-table.h"
  13 #include "mind/snipe-types.h"
  14 #include "monster-race/race-flags-resistance.h"
  15 #include "monster-race/race-flags1.h"
  16 #include "monster-race/race-flags2.h"
  17 #include "monster-race/race-flags3.h"
  18 #include "monster-race/race-flags7.h"
  19 #include "monster-race/race-indice-types.h"
  20 #include "monster/monster-describer.h"
  21 #include "monster-floor/monster-death.h"
  22 #include "monster/monster-status.h"
  23 #include "monster/monster-info.h"
  24 #include "monster-floor/monster-move.h"
  25 #include "monster/monster-update.h"
  26 #include "mspell/monster-spell.h"
  27 #include "object-enchant/artifact.h"
  28 #include "object-enchant/tr-types.h"
  29 #include "object/object-broken.h"
  30 #include "object/object-flags.h"
  31 #include "object/object-flavor.h"
  32 #include "object/object-generator.h"
  33 #include "object/object-hook.h"
  34 #include "object/object-kind.h"
  35 #include "object/object-mark-types.h"
  36 #include "object/object-info.h"
  37 #include "player/avatar.h"
  38 #include "player/player-class.h"
  39 #include "player/player-personalities-table.h"
  40 #include "player/player-skill.h"
  41 #include "player/player-status.h"
  42 #include "spell/process-effect.h"
  43 #include "spell/spells-type.h"
  44 #include "sv-definition/sv-bow-types.h"
  45 #include "util/util.h"
  46 #include "view/display-main-window.h"
  47 #include "world/world-object.h"
  48
  49 /*!
  50  * @brief 矢弾を射撃した際のスレイ倍率をかけた結果を返す /
  51  * Determines the odds of an object breaking when thrown at a monster
  52  * @param o_ptr 矢弾のオブジェクト構造体参照ポインタ
  53  * @param tdam 計算途中のダメージ量
  54  * @param m_ptr 目標モンスターの構造体参照ポインタ
  55  * @return スレイ倍率をかけたダメージ量
  56  */
  57 static MULTIPLY calc_shot_damage_with_slay(player_type *sniper_ptr, object_type *o_ptr, HIT_POINT tdam, monster_type *m_ptr, SPELL_IDX snipe_type)
  58 {
  59         MULTIPLY mult = 10;
  60
  61         monster_race *r_ptr = &r_info[m_ptr->r_idx];
  62
  63         BIT_FLAGS flgs[TR_FLAG_SIZE];
  64         object_flags(o_ptr, flgs);
  65
  66         /* Some "weapons" and "ammo" do extra damage */
  67         switch (o_ptr->tval)
  68         {
  69         case TV_SHOT:
  70         case TV_ARROW:
  71         case TV_BOLT:
  72         {
  73                 if ((have_flag(flgs, TR_SLAY_ANIMAL)) && (r_ptr->flags3 & RF3_ANIMAL))
  74                 {
  75                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
  76                         {
  77                                 r_ptr->r_flags3 |= RF3_ANIMAL;
  78                         }
  79                         if (mult < 17) mult = 17;
  80                 }
  81
  82                 if ((have_flag(flgs, TR_KILL_ANIMAL)) && (r_ptr->flags3 & RF3_ANIMAL))
  83                 {
  84                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
  85                         {
  86                                 r_ptr->r_flags3 |= RF3_ANIMAL;
  87                         }
  88                         if (mult < 27) mult = 27;
  89                 }
  90
  91                 if ((have_flag(flgs, TR_SLAY_EVIL)) && (r_ptr->flags3 & RF3_EVIL))
  92                 {
  93                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
  94                         {
  95                                 r_ptr->r_flags3 |= RF3_EVIL;
  96                         }
  97                         if (mult < 15) mult = 15;
  98                 }
  99
 100                 if ((have_flag(flgs, TR_KILL_EVIL)) && (r_ptr->flags3 & RF3_EVIL))
 101                 {
 102                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 103                         {
 104                                 r_ptr->r_flags3 |= RF3_EVIL;
 105                         }
 106                         if (mult < 25) mult = 25;
 107                 }
 108
 109                 if ((have_flag(flgs, TR_SLAY_HUMAN)) && (r_ptr->flags2 & RF2_HUMAN))
 110                 {
 111                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 112                         {
 113                                 r_ptr->r_flags2 |= RF2_HUMAN;
 114                         }
 115                         if (mult < 17) mult = 17;
 116                 }
 117
 118                 if ((have_flag(flgs, TR_KILL_HUMAN)) && (r_ptr->flags2 & RF2_HUMAN))
 119                 {
 120                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 121                         {
 122                                 r_ptr->r_flags2 |= RF2_HUMAN;
 123                         }
 124                         if (mult < 27) mult = 27;
 125                 }
 126
 127                 if ((have_flag(flgs, TR_SLAY_UNDEAD)) && (r_ptr->flags3 & RF3_UNDEAD))
 128                 {
 129                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 130                         {
 131                                 r_ptr->r_flags3 |= RF3_UNDEAD;
 132                         }
 133                         if (mult < 20) mult = 20;
 134                 }
 135
 136                 if ((have_flag(flgs, TR_KILL_UNDEAD)) && (r_ptr->flags3 & RF3_UNDEAD))
 137                 {
 138                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 139                         {
 140                                 r_ptr->r_flags3 |= RF3_UNDEAD;
 141                         }
 142                         if (mult < 30) mult = 30;
 143                 }
 144
 145                 if ((have_flag(flgs, TR_SLAY_DEMON)) && (r_ptr->flags3 & RF3_DEMON))
 146                 {
 147                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 148                         {
 149                                 r_ptr->r_flags3 |= RF3_DEMON;
 150                         }
 151                         if (mult < 20) mult = 20;
 152                 }
 153
 154                 if ((have_flag(flgs, TR_KILL_DEMON)) && (r_ptr->flags3 & RF3_DEMON))
 155                 {
 156                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 157                         {
 158                                 r_ptr->r_flags3 |= RF3_DEMON;
 159                         }
 160                         if (mult < 30) mult = 30;
 161                 }
 162
 163                 if ((have_flag(flgs, TR_SLAY_ORC)) && (r_ptr->flags3 & RF3_ORC))
 164                 {
 165                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 166                         {
 167                                 r_ptr->r_flags3 |= RF3_ORC;
 168                         }
 169                         if (mult < 20) mult = 20;
 170                 }
 171
 172                 if ((have_flag(flgs, TR_KILL_ORC)) && (r_ptr->flags3 & RF3_ORC))
 173                 {
 174                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 175                         {
 176                                 r_ptr->r_flags3 |= RF3_ORC;
 177                         }
 178                         if (mult < 30) mult = 30;
 179                 }
 180
 181                 if ((have_flag(flgs, TR_SLAY_TROLL)) && (r_ptr->flags3 & RF3_TROLL))
 182                 {
 183                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 184                         {
 185                                 r_ptr->r_flags3 |= RF3_TROLL;
 186                         }
 187
 188                         if (mult < 20) mult = 20;
 189                 }
 190
 191                 if ((have_flag(flgs, TR_KILL_TROLL)) && (r_ptr->flags3 & RF3_TROLL))
 192                 {
 193                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 194                         {
 195                                 r_ptr->r_flags3 |= RF3_TROLL;
 196                         }
 197                         if (mult < 30) mult = 30;
 198                 }
 199
 200                 if ((have_flag(flgs, TR_SLAY_GIANT)) && (r_ptr->flags3 & RF3_GIANT))
 201                 {
 202                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 203                         {
 204                                 r_ptr->r_flags3 |= RF3_GIANT;
 205                         }
 206                         if (mult < 20) mult = 20;
 207                 }
 208
 209                 if ((have_flag(flgs, TR_KILL_GIANT)) && (r_ptr->flags3 & RF3_GIANT))
 210                 {
 211                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 212                         {
 213                                 r_ptr->r_flags3 |= RF3_GIANT;
 214                         }
 215                         if (mult < 30) mult = 30;
 216                 }
 217
 218                 if ((have_flag(flgs, TR_SLAY_DRAGON)) && (r_ptr->flags3 & RF3_DRAGON))
 219                 {
 220                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 221                         {
 222                                 r_ptr->r_flags3 |= RF3_DRAGON;
 223                         }
 224                         if (mult < 20) mult = 20;
 225                 }
 226
 227                 if ((have_flag(flgs, TR_KILL_DRAGON)) && (r_ptr->flags3 & RF3_DRAGON))
 228                 {
 229                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 230                         {
 231                                 r_ptr->r_flags3 |= RF3_DRAGON;
 232                         }
 233                         if (mult < 30) mult = 30;
 234                         if ((o_ptr->name1 == ART_BARD_ARROW) && (m_ptr->r_idx == MON_SMAUG) &&
 235                                 (sniper_ptr->inventory_list[INVEN_BOW].name1 == ART_BARD))
 236                                 mult *= 5;
 237                 }
 238
 239                 if (have_flag(flgs, TR_BRAND_ACID))
 240                 {
 241                         /* Notice immunity */
 242                         if (r_ptr->flagsr & RFR_EFF_IM_ACID_MASK)
 243                         {
 244                                 if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 245                                 {
 246                                         r_ptr->r_flagsr |= (r_ptr->flagsr & RFR_EFF_IM_ACID_MASK);
 247                                 }
 248                         }
 249                         else
 250                         {
 251                                 if (mult < 17) mult = 17;
 252                         }
 253                 }
 254
 255                 if (have_flag(flgs, TR_BRAND_ELEC))
 256                 {
 257                         /* Notice immunity */
 258                         if (r_ptr->flagsr & RFR_EFF_IM_ELEC_MASK)
 259                         {
 260                                 if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 261                                 {
 262                                         r_ptr->r_flagsr |= (r_ptr->flagsr & RFR_EFF_IM_ELEC_MASK);
 263                                 }
 264                         }
 265                         else
 266                         {
 267                                 if (mult < 17) mult = 17;
 268                         }
 269                 }
 270
 271                 if (have_flag(flgs, TR_BRAND_FIRE))
 272                 {
 273                         /* Notice immunity */
 274                         if (r_ptr->flagsr & RFR_EFF_IM_FIRE_MASK)
 275                         {
 276                                 if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 277                                 {
 278                                         r_ptr->r_flagsr |= (r_ptr->flagsr & RFR_EFF_IM_FIRE_MASK);
 279                                 }
 280                         }
 281                         /* Otherwise, take the damage */
 282                         else
 283                         {
 284                                 if (r_ptr->flags3 & RF3_HURT_FIRE)
 285                                 {
 286                                         if (mult < 25) mult = 25;
 287                                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 288                                         {
 289                                                 r_ptr->r_flags3 |= RF3_HURT_FIRE;
 290                                         }
 291                                 }
 292                                 else if (mult < 17) mult = 17;
 293                         }
 294                 }
 295
 296                 if (have_flag(flgs, TR_BRAND_COLD))
 297                 {
 298                         /* Notice immunity */
 299                         if (r_ptr->flagsr & RFR_EFF_IM_COLD_MASK)
 300                         {
 301                                 if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 302                                 {
 303                                         r_ptr->r_flagsr |= (r_ptr->flagsr & RFR_EFF_IM_COLD_MASK);
 304                                 }
 305                         }
 306                         /* Otherwise, take the damage */
 307                         else
 308                         {
 309                                 if (r_ptr->flags3 & RF3_HURT_COLD)
 310                                 {
 311                                         if (mult < 25) mult = 25;
 312                                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 313                                         {
 314                                                 r_ptr->r_flags3 |= RF3_HURT_COLD;
 315                                         }
 316                                 }
 317                                 else if (mult < 17) mult = 17;
 318                         }
 319                 }
 320
 321                 if (have_flag(flgs, TR_BRAND_POIS))
 322                 {
 323                         /* Notice immunity */
 324                         if (r_ptr->flagsr & RFR_EFF_IM_POIS_MASK)
 325                         {
 326                                 if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 327                                 {
 328                                         r_ptr->r_flagsr |= (r_ptr->flagsr & RFR_EFF_IM_POIS_MASK);
 329                                 }
 330                         }
 331                         /* Otherwise, take the damage */
 332                         else
 333                         {
 334                                 if (mult < 17) mult = 17;
 335                         }
 336                 }
 337
 338                 if ((have_flag(flgs, TR_FORCE_WEAPON)) && (sniper_ptr->csp > (sniper_ptr->msp / 30)))
 339                 {
 340                         sniper_ptr->csp -= (1 + (sniper_ptr->msp / 30));
 341                         sniper_ptr->redraw |= (PR_MANA);
 342                         mult = mult * 5 / 2;
 343                 }
 344                 break;
 345         }
 346         }
 347
 348         /* Sniper */
 349         if (snipe_type) mult = calc_snipe_damage_with_slay(sniper_ptr, mult, m_ptr, snipe_type);
 350
 351         /* Return the total damage */
 352         return (tdam * mult / 10);
 353 }
 354
 355
 356 /*!
 357  * @brief 射撃処理実行 /
 358  * Fire an object from the pack or floor.
 359  * @param item 射撃するオブジェクトの所持ID
 360  * @param j_ptr 射撃武器のオブジェクト参照ポインタ
 361  * @return なし
 362  * @details
 363  * <pre>
 364  * You may only fire items that "match" your missile launcher.
 365  * You must use slings + pebbles/shots, bows + arrows, xbows + bolts.
 366  * See "calc_bonuses()" for more calculations and such.
 367  * Note that "firing" a missile is MUCH better than "throwing" it.
 368  * Note: "unseen" monsters are very hard to hit.
 369  * Objects are more likely to break if they "attempt" to hit a monster.
 370  * Rangers (with Bows) and Anyone (with "Extra Shots") get extra shots.
 371  * The "extra shot" code works by decreasing the amount of energy
 372  * required to make each shot, spreading the shots out over time.
 373  * Note that when firing missiles, the launcher multiplier is applied
 374  * after all the bonuses are added in, making multipliers very useful.
 375  * Note that Bows of "Extra Might" get extra range and an extra bonus
 376  * for the damage multiplier.
 377  * Note that Bows of "Extra Shots" give an extra shot.
 378  * </pre>
 379  */
 380 void exe_fire(player_type *shooter_ptr, INVENTORY_IDX item, object_type *j_ptr, SPELL_IDX snipe_type)
 381 {
 382         DIRECTION dir;
 383         int i;
 384         POSITION y, x, ny, nx, ty, tx, prev_y, prev_x;
 385         int tdam_base, tdis, thits, tmul;
 386         int bonus, chance;
 387         int cur_dis, visible;
 388         PERCENTAGE j;
 389
 390         object_type forge;
 391         object_type *q_ptr;
 392
 393         object_type *o_ptr;
 394
 395         bool hit_body = FALSE;
 396
 397         GAME_TEXT o_name[MAX_NLEN];
 398
 399         u16b path_g[512];       /* For calcuration of path length */
 400
 401         int msec = delay_factor * delay_factor * delay_factor;
 402
 403         /* STICK TO */
 404         bool stick_to = FALSE;
 405
 406         /* Access the item (if in the pack) */
 407         if (item >= 0)
 408         {
 409                 o_ptr = &shooter_ptr->inventory_list[item];
 410         }
 411         else
 412         {
 413                 o_ptr = &shooter_ptr->current_floor_ptr->o_list[0 - item];
 414         }
 415
 416         /* Sniper - Cannot shot a single arrow twice */
 417         if ((snipe_type == SP_DOUBLE) && (o_ptr->number < 2)) snipe_type = SP_NONE;
 418
 419         object_desc(shooter_ptr, o_name, o_ptr, OD_OMIT_PREFIX);
 420
 421         /* Use the proper number of shots */
 422         thits = shooter_ptr->num_fire;
 423
 424         /* Use a base distance */
 425         tdis = 10;
 426
 427         /* Base damage from thrown object plus launcher bonus */
 428         tdam_base = damroll(o_ptr->dd, o_ptr->ds) + o_ptr->to_d + j_ptr->to_d;
 429
 430         /* Actually "fire" the object */
 431         bonus = (shooter_ptr->to_h_b + o_ptr->to_h + j_ptr->to_h);
 432         if ((j_ptr->sval == SV_LIGHT_XBOW) || (j_ptr->sval == SV_HEAVY_XBOW))
 433                 chance = (shooter_ptr->skill_thb + (shooter_ptr->weapon_exp[0][j_ptr->sval] / 400 + bonus) * BTH_PLUS_ADJ);
 434         else
 435                 chance = (shooter_ptr->skill_thb + ((shooter_ptr->weapon_exp[0][j_ptr->sval] - (WEAPON_EXP_MASTER / 2)) / 200 + bonus) * BTH_PLUS_ADJ);
 436
 437         shooter_ptr->energy_use = bow_energy(j_ptr->sval);
 438         tmul = bow_tmul(j_ptr->sval);
 439
 440         /* Get extra "power" from "extra might" */
 441         if (shooter_ptr->xtra_might) tmul++;
 442
 443         tmul = tmul * (100 + (int)(adj_str_td[shooter_ptr->stat_ind[A_STR]]) - 128);
 444
 445         /* Boost the damage */
 446         tdam_base *= tmul;
 447         tdam_base /= 100;
 448
 449         /* Base range */
 450         tdis = 13 + tmul / 80;
 451         if ((j_ptr->sval == SV_LIGHT_XBOW) || (j_ptr->sval == SV_HEAVY_XBOW))
 452         {
 453                 if (shooter_ptr->concent)
 454                         tdis -= (5 - (shooter_ptr->concent + 1) / 2);
 455                 else
 456                         tdis -= 5;
 457         }
 458
 459         project_length = tdis + 1;
 460
 461         /* Get a direction (or cancel) */
 462         if (!get_aim_dir(shooter_ptr, &dir))
 463         {
 464                 free_turn(shooter_ptr);
 465
 466                 if (snipe_type == SP_AWAY) snipe_type = SP_NONE;
 467
 468                 /* need not to reset project_length (already did)*/
 469
 470                 return;
 471         }
 472
 473         /* Predict the "target" location */
 474         tx = shooter_ptr->x + 99 * ddx[dir];
 475         ty = shooter_ptr->y + 99 * ddy[dir];
 476
 477         /* Check for "target request" */
 478         if ((dir == 5) && target_okay(shooter_ptr))
 479         {
 480                 tx = target_col;
 481                 ty = target_row;
 482         }
 483
 484         /* Get projection path length */
 485         tdis = project_path(shooter_ptr, path_g, project_length, shooter_ptr->y, shooter_ptr->x, ty, tx, PROJECT_PATH | PROJECT_THRU) - 1;
 486
 487         project_length = 0; /* reset to default */
 488
 489         /* Don't shoot at my feet */
 490         if (tx == shooter_ptr->x && ty == shooter_ptr->y)
 491         {
 492                 free_turn(shooter_ptr);
 493
 494                 /* project_length is already reset to 0 */
 495
 496                 return;
 497         }
 498
 499
 500         /* Take a (partial) turn */
 501         shooter_ptr->energy_use = (shooter_ptr->energy_use / thits);
 502         shooter_ptr->is_fired = TRUE;
 503
 504         /* Sniper - Difficult to shot twice at 1 turn */
 505         if (snipe_type == SP_DOUBLE)  shooter_ptr->concent = (shooter_ptr->concent + 1) / 2;
 506
 507         /* Sniper - Repeat shooting when double shots */
 508         for (i = 0; i < ((snipe_type == SP_DOUBLE) ? 2 : 1); i++)
 509         {
 510
 511                 /* Start at the player */
 512                 y = shooter_ptr->y;
 513                 x = shooter_ptr->x;
 514                 q_ptr = &forge;
 515                 object_copy(q_ptr, o_ptr);
 516
 517                 /* Single object */
 518                 q_ptr->number = 1;
 519
 520                 vary_item(shooter_ptr, item, -1);
 521
 522                 sound(SOUND_SHOOT);
 523                 handle_stuff(shooter_ptr);
 524
 525                 prev_y = y;
 526                 prev_x = x;
 527
 528                 /* The shot does not hit yet */
 529                 hit_body = FALSE;
 530
 531                 /* Travel until stopped */
 532                 for (cur_dis = 0; cur_dis <= tdis; )
 533                 {
 534                         grid_type *g_ptr;
 535
 536                         /* Hack -- Stop at the target */
 537                         if ((y == ty) && (x == tx)) break;
 538
 539                         /* Calculate the new location (see "project()") */
 540                         ny = y;
 541                         nx = x;
 542                         mmove2(&ny, &nx, shooter_ptr->y, shooter_ptr->x, ty, tx);
 543
 544                         /* Shatter Arrow */
 545                         if (snipe_type == SP_KILL_WALL)
 546                         {
 547                                 g_ptr = &shooter_ptr->current_floor_ptr->grid_array[ny][nx];
 548
 549                                 if (cave_have_flag_grid(g_ptr, FF_HURT_ROCK) && !g_ptr->m_idx)
 550                                 {
 551                                         if (g_ptr->info & (CAVE_MARK)) msg_print(_("岩が砕け散った。", "Wall rocks were shattered."));
 552                                         /* Forget the wall */
 553                                         g_ptr->info &= ~(CAVE_MARK);
 554                                         shooter_ptr->update |= (PU_VIEW | PU_LITE | PU_FLOW | PU_MON_LITE);
 555
 556                                         /* Destroy the wall */
 557                                         cave_alter_feat(shooter_ptr, ny, nx, FF_HURT_ROCK);
 558
 559                                         hit_body = TRUE;
 560                                         break;
 561                                 }
 562                         }
 563
 564                         /* Stopped by walls/doors */
 565                         if (!cave_have_flag_bold(shooter_ptr->current_floor_ptr, ny, nx, FF_PROJECT) && !shooter_ptr->current_floor_ptr->grid_array[ny][nx].m_idx) break;
 566
 567                         /* Advance the distance */
 568                         cur_dis++;
 569
 570                         /* Sniper */
 571                         if (snipe_type == SP_LITE)
 572                         {
 573                                 shooter_ptr->current_floor_ptr->grid_array[ny][nx].info |= (CAVE_GLOW);
 574                                 note_spot(shooter_ptr, ny, nx);
 575                                 lite_spot(shooter_ptr, ny, nx);
 576                         }
 577
 578                         /* The player can see the (on screen) missile */
 579                         if (panel_contains(ny, nx) && player_can_see_bold(shooter_ptr, ny, nx))
 580                         {
 581                                 char c = object_char(q_ptr);
 582                                 byte a = object_attr(q_ptr);
 583
 584                                 /* Draw, Hilite, Fresh, Pause, Erase */
 585                                 print_rel(shooter_ptr, c, a, ny, nx);
 586                                 move_cursor_relative(ny, nx);
 587                                 Term_fresh();
 588                                 Term_xtra(TERM_XTRA_DELAY, msec);
 589                                 lite_spot(shooter_ptr, ny, nx);
 590                                 Term_fresh();
 591                         }
 592
 593                         /* The player cannot see the missile */
 594                         else
 595                         {
 596                                 /* Pause anyway, for consistancy */
 597                                 Term_xtra(TERM_XTRA_DELAY, msec);
 598                         }
 599
 600                         /* Sniper */
 601                         if (snipe_type == SP_KILL_TRAP)
 602                         {
 603                                 project(shooter_ptr, 0, 0, ny, nx, 0, GF_KILL_TRAP,
 604                                         (PROJECT_JUMP | PROJECT_HIDE | PROJECT_GRID | PROJECT_ITEM), -1);
 605                         }
 606
 607                         /* Sniper */
 608                         if (snipe_type == SP_EVILNESS)
 609                         {
 610                                 shooter_ptr->current_floor_ptr->grid_array[ny][nx].info &= ~(CAVE_GLOW | CAVE_MARK);
 611                                 note_spot(shooter_ptr, ny, nx);
 612                                 lite_spot(shooter_ptr, ny, nx);
 613                         }
 614
 615                         prev_y = y;
 616                         prev_x = x;
 617
 618                         /* Save the new location */
 619                         x = nx;
 620                         y = ny;
 621
 622                         /* Monster here, Try to hit it */
 623                         if (shooter_ptr->current_floor_ptr->grid_array[y][x].m_idx)
 624                         {
 625                                 grid_type *c_mon_ptr = &shooter_ptr->current_floor_ptr->grid_array[y][x];
 626
 627                                 monster_type *m_ptr = &shooter_ptr->current_floor_ptr->m_list[c_mon_ptr->m_idx];
 628                                 monster_race *r_ptr = &r_info[m_ptr->r_idx];
 629
 630                                 /* Check the visibility */
 631                                 visible = m_ptr->ml;
 632
 633                                 /* Note the collision */
 634                                 hit_body = TRUE;
 635
 636                                 if (monster_csleep_remaining(m_ptr))
 637                                 {
 638                                         if (!(r_ptr->flags3 & RF3_EVIL) || one_in_(5)) chg_virtue(shooter_ptr, V_COMPASSION, -1);
 639                                         if (!(r_ptr->flags3 & RF3_EVIL) || one_in_(5)) chg_virtue(shooter_ptr, V_HONOUR, -1);
 640                                 }
 641
 642                                 if ((r_ptr->level + 10) > shooter_ptr->lev)
 643                                 {
 644                                         int now_exp = shooter_ptr->weapon_exp[0][j_ptr->sval];
 645                                         if (now_exp < s_info[shooter_ptr->pclass].w_max[0][j_ptr->sval])
 646                                         {
 647                                                 SUB_EXP amount = 0;
 648                                                 if (now_exp < WEAPON_EXP_BEGINNER) amount = 80;
 649                                                 else if (now_exp < WEAPON_EXP_SKILLED) amount = 25;
 650                                                 else if ((now_exp < WEAPON_EXP_EXPERT) && (shooter_ptr->lev > 19)) amount = 10;
 651                                                 else if (shooter_ptr->lev > 34) amount = 2;
 652                                                 shooter_ptr->weapon_exp[0][j_ptr->sval] += amount;
 653                                                 shooter_ptr->update |= (PU_BONUS);
 654                                         }
 655                                 }
 656
 657                                 if (shooter_ptr->riding)
 658                                 {
 659                                         if ((shooter_ptr->skill_exp[GINOU_RIDING] < s_info[shooter_ptr->pclass].s_max[GINOU_RIDING])
 660                                                 && ((shooter_ptr->skill_exp[GINOU_RIDING] - (RIDING_EXP_BEGINNER * 2)) / 200 < r_info[shooter_ptr->current_floor_ptr->m_list[shooter_ptr->riding].r_idx].level)
 661                                                 && one_in_(2))
 662                                         {
 663                                                 shooter_ptr->skill_exp[GINOU_RIDING] += 1;
 664                                                 shooter_ptr->update |= (PU_BONUS);
 665                                         }
 666                                 }
 667
 668                                 /* Did we hit it (penalize range) */
 669                                 if (test_hit_fire(shooter_ptr, chance - cur_dis, m_ptr, m_ptr->ml, o_name))
 670                                 {
 671                                         bool fear = FALSE;
 672                                         int tdam = tdam_base;
 673
 674                                         /* Get extra damage from concentration */
 675                                         if (shooter_ptr->concent) tdam = boost_concentration_damage(shooter_ptr, tdam);
 676
 677                                         /* Handle unseen monster */
 678                                         if (!visible)
 679                                         {
 680                                                 /* Invisible monster */
 681                                                 msg_format(_("%sが敵を捕捉した。", "The %s finds a mark."), o_name);
 682                                         }
 683
 684                                         /* Handle visible monster */
 685                                         else
 686                                         {
 687                                                 GAME_TEXT m_name[MAX_NLEN];
 688
 689                                                 /* Get "the monster" or "it" */
 690                                                 monster_desc(shooter_ptr, m_name, m_ptr, 0);
 691
 692                                                 msg_format(_("%sが%sに命中した。", "The %s hits %s."), o_name, m_name);
 693
 694                                                 if (m_ptr->ml)
 695                                                 {
 696                                                         if (!shooter_ptr->image) monster_race_track(shooter_ptr, m_ptr->ap_r_idx);
 697                                                         health_track(shooter_ptr, c_mon_ptr->m_idx);
 698                                                 }
 699                                         }
 700
 701                                         if (snipe_type == SP_NEEDLE)
 702                                         {
 703                                                 if ((randint1(randint1(r_ptr->level / (3 + shooter_ptr->concent)) + (8 - shooter_ptr->concent)) == 1)
 704                                                         && !(r_ptr->flags1 & RF1_UNIQUE) && !(r_ptr->flags7 & RF7_UNIQUE2))
 705                                                 {
 706                                                         GAME_TEXT m_name[MAX_NLEN];
 707
 708                                                         /* Get "the monster" or "it" */
 709                                                         monster_desc(shooter_ptr, m_name, m_ptr, 0);
 710
 711                                                         tdam = m_ptr->hp + 1;
 712                                                         msg_format(_("%sの急所に突き刺さった！", "Your shot hit a fatal spot of %s!"), m_name);
 713                                                 }
 714                                                 else tdam = 1;
 715                                         }
 716                                         else
 717                                         {
 718                                                 /* Apply special damage */
 719                                                 tdam = calc_shot_damage_with_slay(shooter_ptr, q_ptr, tdam, m_ptr, snipe_type);
 720                                                 tdam = critical_shot(shooter_ptr, q_ptr->weight, q_ptr->to_h, j_ptr->to_h, tdam);
 721
 722                                                 /* No negative damage */
 723                                                 if (tdam < 0) tdam = 0;
 724
 725                                                 /* Modify the damage */
 726                                                 tdam = mon_damage_mod(shooter_ptr, m_ptr, tdam, FALSE);
 727                                         }
 728
 729                                         msg_format_wizard(CHEAT_MONSTER,
 730                                                 _("%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))"),
 731                                                 tdam, m_ptr->hp - tdam, m_ptr->maxhp, m_ptr->max_maxhp);
 732
 733                                         /* Sniper */
 734                                         if (snipe_type == SP_EXPLODE)
 735                                         {
 736                                                 u16b flg = (PROJECT_STOP | PROJECT_JUMP | PROJECT_KILL | PROJECT_GRID);
 737
 738                                                 sound(SOUND_EXPLODE); /* No explode sound - use breath fire instead */
 739                                                 project(shooter_ptr, 0, ((shooter_ptr->concent + 1) / 2 + 1), ny, nx, tdam, GF_MISSILE, flg, -1);
 740                                                 break;
 741                                         }
 742
 743                                         /* Sniper */
 744                                         if (snipe_type == SP_HOLYNESS)
 745                                         {
 746                                                 shooter_ptr->current_floor_ptr->grid_array[ny][nx].info |= (CAVE_GLOW);
 747                                                 note_spot(shooter_ptr, ny, nx);
 748                                                 lite_spot(shooter_ptr, ny, nx);
 749                                         }
 750
 751                                         /* Hit the monster, check for death */
 752                                         if (mon_take_hit(shooter_ptr, c_mon_ptr->m_idx, tdam, &fear, extract_note_dies(real_r_idx(m_ptr))))
 753                                         {
 754                                                 /* Dead monster */
 755                                         }
 756
 757                                         /* No death */
 758                                         else
 759                                         {
 760                                                 /* STICK TO */
 761                                                 if (object_is_fixed_artifact(q_ptr) &&
 762                                                         (shooter_ptr->pclass != CLASS_SNIPER || shooter_ptr->concent == 0))
 763                                                 {
 764                                                         GAME_TEXT m_name[MAX_NLEN];
 765
 766                                                         monster_desc(shooter_ptr, m_name, m_ptr, 0);
 767
 768                                                         stick_to = TRUE;
 769                                                         msg_format(_("%sは%sに突き刺さった！", "%^s is stuck in %s!"), o_name, m_name);
 770                                                 }
 771
 772                                                 message_pain(shooter_ptr, c_mon_ptr->m_idx, tdam);
 773
 774                                                 /* Anger the monster */
 775                                                 if (tdam > 0) anger_monster(shooter_ptr, m_ptr);
 776
 777                                                 if (fear && m_ptr->ml)
 778                                                 {
 779                                                         GAME_TEXT m_name[MAX_NLEN];
 780                                                         sound(SOUND_FLEE);
 781                                                         monster_desc(shooter_ptr, m_name, m_ptr, 0);
 782                                                         msg_format(_("%^sは恐怖して逃げ出した！", "%^s flees in terror!"), m_name);
 783                                                 }
 784
 785                                                 set_target(m_ptr, shooter_ptr->y, shooter_ptr->x);
 786
 787                                                 /* Sniper */
 788                                                 if (snipe_type == SP_RUSH)
 789                                                 {
 790                                                         int n = randint1(5) + 3;
 791                                                         MONSTER_IDX m_idx = c_mon_ptr->m_idx;
 792
 793                                                         for (; cur_dis <= tdis; )
 794                                                         {
 795                                                                 POSITION ox = nx;
 796                                                                 POSITION oy = ny;
 797
 798                                                                 if (!n) break;
 799
 800                                                                 /* Calculate the new location (see "project()") */
 801                                                                 mmove2(&ny, &nx, shooter_ptr->y, shooter_ptr->x, ty, tx);
 802
 803                                                                 /* Stopped by wilderness boundary */
 804                                                                 if (!in_bounds2(shooter_ptr->current_floor_ptr, ny, nx)) break;
 805
 806                                                                 /* Stopped by walls/doors */
 807                                                                 if (!player_can_enter(shooter_ptr, shooter_ptr->current_floor_ptr->grid_array[ny][nx].feat, 0)) break;
 808
 809                                                                 /* Stopped by monsters */
 810                                                                 if (!is_cave_empty_bold(shooter_ptr, ny, nx)) break;
 811
 812                                                                 shooter_ptr->current_floor_ptr->grid_array[ny][nx].m_idx = m_idx;
 813                                                                 shooter_ptr->current_floor_ptr->grid_array[oy][ox].m_idx = 0;
 814
 815                                                                 m_ptr->fx = nx;
 816                                                                 m_ptr->fy = ny;
 817
 818                                                                 update_monster(shooter_ptr, c_mon_ptr->m_idx, TRUE);
 819
 820                                                                 lite_spot(shooter_ptr, ny, nx);
 821                                                                 lite_spot(shooter_ptr, oy, ox);
 822
 823                                                                 Term_fresh();
 824                                                                 Term_xtra(TERM_XTRA_DELAY, msec);
 825
 826                                                                 x = nx;
 827                                                                 y = ny;
 828                                                                 cur_dis++;
 829                                                                 n--;
 830                                                         }
 831                                                 }
 832                                         }
 833                                 }
 834
 835                                 /* Sniper */
 836                                 if (snipe_type == SP_PIERCE)
 837                                 {
 838                                         if (shooter_ptr->concent < 1) break;
 839                                         shooter_ptr->concent--;
 840                                         continue;
 841                                 }
 842
 843                                 /* Stop looking */
 844                                 break;
 845                         }
 846                 }
 847
 848                 /* Chance of breakage (during attacks) */
 849                 j = (hit_body ? breakage_chance(shooter_ptr, q_ptr, shooter_ptr->pclass == CLASS_ARCHER, snipe_type) : 0);
 850
 851                 if (stick_to)
 852                 {
 853                         MONSTER_IDX m_idx = shooter_ptr->current_floor_ptr->grid_array[y][x].m_idx;
 854                         monster_type *m_ptr = &shooter_ptr->current_floor_ptr->m_list[m_idx];
 855                         OBJECT_IDX o_idx = o_pop(shooter_ptr->current_floor_ptr);
 856
 857                         if (!o_idx)
 858                         {
 859                                 msg_format(_("%sはどこかへ行った。", "The %s went somewhere."), o_name);
 860                                 if (object_is_fixed_artifact(q_ptr))
 861                                 {
 862                                         a_info[j_ptr->name1].cur_num = 0;
 863                                 }
 864                                 return;
 865                         }
 866
 867                         o_ptr = &shooter_ptr->current_floor_ptr->o_list[o_idx];
 868                         object_copy(o_ptr, q_ptr);
 869
 870                         /* Forget mark */
 871                         o_ptr->marked &= OM_TOUCHED;
 872
 873                         /* Forget location */
 874                         o_ptr->iy = o_ptr->ix = 0;
 875
 876                         /* Memorize monster */
 877                         o_ptr->held_m_idx = m_idx;
 878
 879                         /* Build a stack */
 880                         o_ptr->next_o_idx = m_ptr->hold_o_idx;
 881
 882                         /* Carry object */
 883                         m_ptr->hold_o_idx = o_idx;
 884                 }
 885                 else if (cave_have_flag_bold(shooter_ptr->current_floor_ptr, y, x, FF_PROJECT))
 886                 {
 887                         /* Drop (or break) near that location */
 888                         (void)drop_near(shooter_ptr, q_ptr, j, y, x);
 889                 }
 890                 else
 891                 {
 892                         /* Drop (or break) near that location */
 893                         (void)drop_near(shooter_ptr, q_ptr, j, prev_y, prev_x);
 894                 }
 895
 896                 /* Sniper - Repeat shooting when double shots */
 897         }
 898
 899         /* Sniper - Loose his/her concentration after any shot */
 900         if (shooter_ptr->concent) reset_concentration(shooter_ptr, FALSE);
 901 }
 902
 903
 904 /*!
 905 * @brief プレイヤーからモンスターへの射撃命中判定 /
 906 * Determine if the player "hits" a monster (normal combat).
 907 * @param chance 基本命中値
 908 * @param m_ptr モンスターの構造体参照ポインタ
 909 * @param vis 目標を視界に捕らえているならばTRUEを指定
 910 * @param o_name メッセージ表示時のモンスター名
 911 * @return 命中と判定された場合TRUEを返す
 912 * @note Always miss 5%, always hit 5%, otherwise random.
 913 */
 914 bool test_hit_fire(player_type *shooter_ptr, int chance, monster_type *m_ptr, int vis, char* o_name)
 915 {
 916         int k;
 917         ARMOUR_CLASS ac;
 918         monster_race *r_ptr = &r_info[m_ptr->r_idx];
 919
 920         /* Percentile dice */
 921         k = randint1(100);
 922
 923         /* Snipers with high-concentration reduce instant miss percentage.*/
 924         k += shooter_ptr->concent;
 925
 926         /* Hack -- Instant miss or hit */
 927         if (k <= 5) return FALSE;
 928         if (k > 95) return TRUE;
 929
 930         if (shooter_ptr->pseikaku == PERSONALITY_LAZY)
 931                 if (one_in_(20)) return FALSE;
 932
 933         /* Never hit */
 934         if (chance <= 0) return FALSE;
 935
 936         ac = r_ptr->ac;
 937         if (shooter_ptr->concent)
 938         {
 939                 ac *= (8 - shooter_ptr->concent);
 940                 ac /= 8;
 941         }
 942
 943         if (m_ptr->r_idx == MON_GOEMON && !monster_csleep_remaining(m_ptr)) ac *= 3;
 944
 945         /* Invisible monsters are harder to hit */
 946         if (!vis) chance = (chance + 1) / 2;
 947
 948         /* Power competes against armor */
 949         if (randint0(chance) < (ac * 3 / 4))
 950         {
 951                 if (m_ptr->r_idx == MON_GOEMON && !monster_csleep_remaining(m_ptr))
 952                 {
 953                         GAME_TEXT m_name[MAX_NLEN];
 954                         monster_desc(shooter_ptr, m_name, m_ptr, 0);
 955                         msg_format(_("%sは%sを斬り捨てた！", "%s cuts down %s!"), m_name, o_name);
 956                 }
 957                 return FALSE;
 958         }
 959
 960         /* Assume hit */
 961         return TRUE;
 962 }
 963
 964
 965
 966
 967 /*!
 968 * @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 /
 969 * Critical hits (from objects thrown by player) Factor in item weight, total plusses, and player level.
 970 * @param weight 矢弾の重量
 971 * @param plus_ammo 矢弾の命中修正
 972 * @param plus_bow 弓の命中修正
 973 * @param dam 現在算出中のダメージ値
 974 * @return クリティカル修正が入ったダメージ値
 975 */
 976 HIT_POINT critical_shot(player_type *shooter_ptr, WEIGHT weight, int plus_ammo, int plus_bow, HIT_POINT dam)
 977 {
 978         int i, k;
 979         object_type *j_ptr = &shooter_ptr->inventory_list[INVEN_BOW];
 980
 981         /* Extract "shot" power */
 982         i = shooter_ptr->to_h_b + plus_ammo;
 983
 984         if (shooter_ptr->tval_ammo == TV_BOLT)
 985                 i = (shooter_ptr->skill_thb + (shooter_ptr->weapon_exp[0][j_ptr->sval] / 400 + i) * BTH_PLUS_ADJ);
 986         else
 987                 i = (shooter_ptr->skill_thb + ((shooter_ptr->weapon_exp[0][j_ptr->sval] - (WEAPON_EXP_MASTER / 2)) / 200 + i) * BTH_PLUS_ADJ);
 988
 989
 990         /* Snipers can shot more critically with crossbows */
 991         if (shooter_ptr->concent) i += ((i * shooter_ptr->concent) / 5);
 992         if ((shooter_ptr->pclass == CLASS_SNIPER) && (shooter_ptr->tval_ammo == TV_BOLT)) i *= 2;
 993
 994         /* Good bow makes more critical */
 995         i += plus_bow * 8 * (shooter_ptr->concent ? shooter_ptr->concent + 5 : 5);
 996
 997         /* Critical hit */
 998         if (randint1(10000) <= i)
 999         {
1000                 k = weight * randint1(500);
1001
1002                 if (k < 900)
1003                 {
1004                         msg_print(_("手ごたえがあった！", "It was a good hit!"));
1005                         dam += (dam / 2);
1006                 }
1007                 else if (k < 1350)
1008                 {
1009                         msg_print(_("かなりの手ごたえがあった！", "It was a great hit!"));
1010                         dam *= 2;
1011                 }
1012                 else
1013                 {
1014                         msg_print(_("会心の一撃だ！", "It was a superb hit!"));
1015                         dam *= 3;
1016                 }
1017         }
1018
1019         return (dam);
1020 }
1021
1022
1023
1024
1025 /*!
1026  * @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
1027  * @param sval 射撃武器のアイテム副分類ID
1028  * @return 消費する基本エネルギー
1029  */
1030 ENERGY bow_energy(OBJECT_SUBTYPE_VALUE sval)
1031 {
1032         ENERGY energy = 10000;
1033
1034         /* Analyze the launcher */
1035         switch (sval)
1036         {
1037                 /* Sling and ammo */
1038         case SV_SLING:
1039         {
1040                 energy = 8000;
1041                 break;
1042         }
1043
1044         /* Short Bow and Arrow */
1045         case SV_SHORT_BOW:
1046         {
1047                 energy = 10000;
1048                 break;
1049         }
1050
1051         /* Long Bow and Arrow */
1052         case SV_LONG_BOW:
1053         {
1054                 energy = 10000;
1055                 break;
1056         }
1057
1058         /* Bow of irresponsiblity and Arrow */
1059         case SV_NAMAKE_BOW:
1060         {
1061                 energy = 7777;
1062                 break;
1063         }
1064
1065         /* Light Crossbow and Bolt */
1066         case SV_LIGHT_XBOW:
1067         {
1068                 energy = 12000;
1069                 break;
1070         }
1071
1072         /* Heavy Crossbow and Bolt */
1073         case SV_HEAVY_XBOW:
1074         {
1075                 energy = 13333;
1076                 break;
1077         }
1078         }
1079
1080         return (energy);
1081 }
1082
1083
1084 /*
1085  * Return bow tmul
1086  */
1087 int bow_tmul(OBJECT_SUBTYPE_VALUE sval)
1088 {
1089         int tmul = 0;
1090
1091         /* Analyze the launcher */
1092         switch (sval)
1093         {
1094                 /* Sling and ammo */
1095         case SV_SLING:
1096         {
1097                 tmul = 2;
1098                 break;
1099         }
1100
1101         /* Short Bow and Arrow */
1102         case SV_SHORT_BOW:
1103         {
1104                 tmul = 2;
1105                 break;
1106         }
1107
1108         /* Long Bow and Arrow */
1109         case SV_LONG_BOW:
1110         {
1111                 tmul = 3;
1112                 break;
1113         }
1114
1115         /* Bow of irresponsiblity and Arrow */
1116         case SV_NAMAKE_BOW:
1117         {
1118                 tmul = 3;
1119                 break;
1120         }
1121
1122         /* Light Crossbow and Bolt */
1123         case SV_LIGHT_XBOW:
1124         {
1125                 tmul = 3;
1126                 break;
1127         }
1128
1129         /* Heavy Crossbow and Bolt */
1130         case SV_HEAVY_XBOW:
1131         {
1132                 tmul = 4;
1133                 break;
1134         }
1135         }
1136
1137         return (tmul);
1138 }
1139
1140
1141 /*!
1142  * @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
1143  * @param shooter_ptr 射撃を行うクリーチャー参照ポインタ
1144  * @param plus_ammo 矢弾のダメージ修正
1145  * @param plus_bow 弓のダメージ修正
1146  * @return ダメージ期待値
1147  * @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。
1148  */
1149 HIT_POINT calc_crit_ratio_shot(player_type* shooter_ptr, HIT_POINT plus_ammo, HIT_POINT plus_bow)
1150 {
1151         HIT_POINT i;
1152         object_type *j_ptr = &shooter_ptr->inventory_list[INVEN_BOW];
1153
1154         /* Extract "shot" power */
1155         i = shooter_ptr->to_h_b + plus_ammo;
1156
1157         if (shooter_ptr->tval_ammo == TV_BOLT)
1158                 i = (shooter_ptr->skill_thb + (shooter_ptr->weapon_exp[0][j_ptr->sval] / 400 + i) * BTH_PLUS_ADJ);
1159         else
1160                 i = (shooter_ptr->skill_thb + ((shooter_ptr->weapon_exp[0][j_ptr->sval] - (WEAPON_EXP_MASTER / 2)) / 200 + i) * BTH_PLUS_ADJ);
1161
1162         /* Snipers can shot more critically with crossbows */
1163         if (shooter_ptr->concent) i += ((i * shooter_ptr->concent) / 5);
1164         if ((shooter_ptr->pclass == CLASS_SNIPER) && (shooter_ptr->tval_ammo == TV_BOLT)) i *= 2;
1165
1166         /* Good bow makes more critical */
1167         i += plus_bow * 8 * (shooter_ptr->concent ? shooter_ptr->concent + 5 : 5);
1168
1169         if (i < 0) i = 0;
1170
1171         return i;
1172 }
1173
1174 /*!
1175  * @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
1176  * @param weight 武器の重量
1177  * @param plus_ammo 矢弾のダメージ修正
1178  * @param plus_bow 弓のダメージ修正
1179  * @param dam 基本ダメージ量
1180  * @return ダメージ期待値
1181  */
1182 HIT_POINT calc_expect_crit_shot(player_type *shooter_ptr, WEIGHT weight, int plus_ammo, int plus_bow, HIT_POINT dam)
1183 {
1184         u32b num;
1185         int i, k, crit;
1186         i = calc_crit_ratio_shot(shooter_ptr, plus_ammo, plus_bow);
1187
1188         k = 0;
1189         num = 0;
1190
1191         crit = MIN(500, 900 / weight);
1192         num += dam * 3 / 2 * crit;
1193         k = crit;
1194
1195         crit = MIN(500, 1350 / weight);
1196         crit -= k;
1197         num += dam * 2 * crit;
1198         k += crit;
1199
1200         if (k < 500)
1201         {
1202                 crit = 500 - k;
1203                 num += dam * 3 * crit;
1204         }
1205
1206         num /= 500;
1207
1208         num *= i;
1209         num += (10000 - i) * dam;
1210         num /= 10000;
1211
1212         return num;
1213 }
1214
1215 /*!
1216  * @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
1217  * @param shooter_ptr プレーヤーへの参照ポインタ
1218  * @param weight 武器の重量
1219  * @param plus 武器のダメージ修正
1220  * @param dam 基本ダメージ
1221  * @param meichuu 命中値
1222  * @param dokubari 毒針処理か否か
1223  * @return ダメージ期待値
1224  */
1225 HIT_POINT calc_expect_crit(player_type *shooter_ptr, WEIGHT weight, int plus, HIT_POINT dam, s16b meichuu, bool dokubari)
1226 {
1227         u32b k, num;
1228         if (dokubari) return dam;
1229
1230         int i = (weight + (meichuu * 3 + plus * 5) + shooter_ptr->skill_thn);
1231         if (i < 0) i = 0;
1232
1233         k = weight;
1234         num = 0;
1235
1236         if (k < 400)                                            num += (2 * dam + 5) * (400 - k);
1237         if (k < 700)                                            num += (2 * dam + 10) * (MIN(700, k + 650) - MAX(400, k));
1238         if (k > (700 - 650) && k < 900)         num += (3 * dam + 15) * (MIN(900, k + 650) - MAX(700, k));
1239         if (k > (900 - 650) && k < 1300)                num += (3 * dam + 20) * (MIN(1300, k + 650) - MAX(900, k));
1240         if (k > (1300 - 650))                                   num += (7 * dam / 2 + 25) * MIN(650, k - (1300 - 650));
1241
1242         num /= 650;
1243         if (shooter_ptr->pclass == CLASS_NINJA)
1244         {
1245                 num *= i;
1246                 num += (4444 - i) * dam;
1247                 num /= 4444;
1248         }
1249         else
1250         {
1251                 num *= i;
1252                 num += (5000 - i) * dam;
1253                 num /= 5000;
1254         }
1255
1256         return num;
1257 }
1258