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