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/cheat-types.h"
   9 #include "game-option/special-options.h"
  10 #include "grid/feature.h"
  11 #include "grid/grid.h"
  12 #include "inventory/inventory-object.h"
  13 #include "io/cursor.h"
  14 #include "io/screen-util.h"
  15 #include "io/targeting.h"
  16 #include "main/sound-definitions-table.h"
  17 #include "main/sound-of-music.h"
  18 #include "mind/snipe-types.h"
  19 #include "monster-race/monster-race.h"
  20 #include "monster-race/race-flags-resistance.h"
  21 #include "monster-race/race-flags1.h"
  22 #include "monster-race/race-flags2.h"
  23 #include "monster-race/race-flags3.h"
  24 #include "monster-race/race-flags7.h"
  25 #include "monster-race/race-indice-types.h"
  26 #include "monster/monster-describer.h"
  27 #include "monster-floor/monster-death.h"
  28 #include "monster/monster-status.h"
  29 #include "monster/monster-info.h"
  30 #include "monster-floor/monster-move.h"
  31 #include "monster/monster-update.h"
  32 #include "object-enchant/artifact.h"
  33 #include "object-enchant/tr-types.h"
  34 #include "object-hook/hook-enchant.h"
  35 #include "object/object-broken.h"
  36 #include "object/object-flags.h"
  37 #include "object/object-flavor.h"
  38 #include "object/object-generator.h"
  39 #include "object/object-kind.h"
  40 #include "object/object-mark-types.h"
  41 #include "object/object-info.h"
  42 #include "player/avatar.h"
  43 #include "player/player-class.h"
  44 #include "player/player-personalities-types.h"
  45 #include "player/player-skill.h"
  46 #include "player/player-status.h"
  47 #include "spell/process-effect.h"
  48 #include "spell/spell-types.h"
  49 #include "sv-definition/sv-bow-types.h"
  50 #include "util/bit-flags-calculator.h"
  51 #include "view/display-messages.h"
  52 #include "wizard/wizard-messages.h"
  53 #include "world/world-object.h"
  54
  55 /*!
  56  * @brief 矢弾を射撃した際のスレイ倍率をかけた結果を返す /
  57  * Determines the odds of an object breaking when thrown at a monster
  58  * @param o_ptr 矢弾のオブジェクト構造体参照ポインタ
  59  * @param tdam 計算途中のダメージ量
  60  * @param m_ptr 目標モンスターの構造体参照ポインタ
  61  * @return スレイ倍率をかけたダメージ量
  62  */
  63 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)
  64 {
  65         MULTIPLY mult = 10;
  66
  67         monster_race *r_ptr = &r_info[m_ptr->r_idx];
  68
  69         BIT_FLAGS flgs[TR_FLAG_SIZE];
  70         object_flags(sniper_ptr, o_ptr, flgs);
  71
  72         /* Some "weapons" and "ammo" do extra damage */
  73         switch (o_ptr->tval)
  74         {
  75         case TV_SHOT:
  76         case TV_ARROW:
  77         case TV_BOLT:
  78         {
  79                 if ((have_flag(flgs, TR_SLAY_ANIMAL)) && (r_ptr->flags3 & RF3_ANIMAL))
  80                 {
  81                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
  82                         {
  83                                 r_ptr->r_flags3 |= RF3_ANIMAL;
  84                         }
  85                         if (mult < 17) mult = 17;
  86                 }
  87
  88                 if ((have_flag(flgs, TR_KILL_ANIMAL)) && (r_ptr->flags3 & RF3_ANIMAL))
  89                 {
  90                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
  91                         {
  92                                 r_ptr->r_flags3 |= RF3_ANIMAL;
  93                         }
  94                         if (mult < 27) mult = 27;
  95                 }
  96
  97                 if ((have_flag(flgs, TR_SLAY_EVIL)) && (r_ptr->flags3 & RF3_EVIL))
  98                 {
  99                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 100                         {
 101                                 r_ptr->r_flags3 |= RF3_EVIL;
 102                         }
 103                         if (mult < 15) mult = 15;
 104                 }
 105
 106                 if ((have_flag(flgs, TR_KILL_EVIL)) && (r_ptr->flags3 & RF3_EVIL))
 107                 {
 108                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 109                         {
 110                                 r_ptr->r_flags3 |= RF3_EVIL;
 111                         }
 112                         if (mult < 25) mult = 25;
 113                 }
 114
 115                 if ((have_flag(flgs, TR_SLAY_HUMAN)) && (r_ptr->flags2 & RF2_HUMAN))
 116                 {
 117                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 118                         {
 119                                 r_ptr->r_flags2 |= RF2_HUMAN;
 120                         }
 121                         if (mult < 17) mult = 17;
 122                 }
 123
 124                 if ((have_flag(flgs, TR_KILL_HUMAN)) && (r_ptr->flags2 & RF2_HUMAN))
 125                 {
 126                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 127                         {
 128                                 r_ptr->r_flags2 |= RF2_HUMAN;
 129                         }
 130                         if (mult < 27) mult = 27;
 131                 }
 132
 133                 if ((have_flag(flgs, TR_SLAY_UNDEAD)) && (r_ptr->flags3 & RF3_UNDEAD))
 134                 {
 135                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 136                         {
 137                                 r_ptr->r_flags3 |= RF3_UNDEAD;
 138                         }
 139                         if (mult < 20) mult = 20;
 140                 }
 141
 142                 if ((have_flag(flgs, TR_KILL_UNDEAD)) && (r_ptr->flags3 & RF3_UNDEAD))
 143                 {
 144                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 145                         {
 146                                 r_ptr->r_flags3 |= RF3_UNDEAD;
 147                         }
 148                         if (mult < 30) mult = 30;
 149                 }
 150
 151                 if ((have_flag(flgs, TR_SLAY_DEMON)) && (r_ptr->flags3 & RF3_DEMON))
 152                 {
 153                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 154                         {
 155                                 r_ptr->r_flags3 |= RF3_DEMON;
 156                         }
 157                         if (mult < 20) mult = 20;
 158                 }
 159
 160                 if ((have_flag(flgs, TR_KILL_DEMON)) && (r_ptr->flags3 & RF3_DEMON))
 161                 {
 162                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 163                         {
 164                                 r_ptr->r_flags3 |= RF3_DEMON;
 165                         }
 166                         if (mult < 30) mult = 30;
 167                 }
 168
 169                 if ((have_flag(flgs, TR_SLAY_ORC)) && (r_ptr->flags3 & RF3_ORC))
 170                 {
 171                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 172                         {
 173                                 r_ptr->r_flags3 |= RF3_ORC;
 174                         }
 175                         if (mult < 20) mult = 20;
 176                 }
 177
 178                 if ((have_flag(flgs, TR_KILL_ORC)) && (r_ptr->flags3 & RF3_ORC))
 179                 {
 180                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 181                         {
 182                                 r_ptr->r_flags3 |= RF3_ORC;
 183                         }
 184                         if (mult < 30) mult = 30;
 185                 }
 186
 187                 if ((have_flag(flgs, TR_SLAY_TROLL)) && (r_ptr->flags3 & RF3_TROLL))
 188                 {
 189                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 190                         {
 191                                 r_ptr->r_flags3 |= RF3_TROLL;
 192                         }
 193
 194                         if (mult < 20) mult = 20;
 195                 }
 196
 197                 if ((have_flag(flgs, TR_KILL_TROLL)) && (r_ptr->flags3 & RF3_TROLL))
 198                 {
 199                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 200                         {
 201                                 r_ptr->r_flags3 |= RF3_TROLL;
 202                         }
 203                         if (mult < 30) mult = 30;
 204                 }
 205
 206                 if ((have_flag(flgs, TR_SLAY_GIANT)) && (r_ptr->flags3 & RF3_GIANT))
 207                 {
 208                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 209                         {
 210                                 r_ptr->r_flags3 |= RF3_GIANT;
 211                         }
 212                         if (mult < 20) mult = 20;
 213                 }
 214
 215                 if ((have_flag(flgs, TR_KILL_GIANT)) && (r_ptr->flags3 & RF3_GIANT))
 216                 {
 217                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 218                         {
 219                                 r_ptr->r_flags3 |= RF3_GIANT;
 220                         }
 221                         if (mult < 30) mult = 30;
 222                 }
 223
 224                 if ((have_flag(flgs, TR_SLAY_DRAGON)) && (r_ptr->flags3 & RF3_DRAGON))
 225                 {
 226                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 227                         {
 228                                 r_ptr->r_flags3 |= RF3_DRAGON;
 229                         }
 230                         if (mult < 20) mult = 20;
 231                 }
 232
 233                 if ((have_flag(flgs, TR_KILL_DRAGON)) && (r_ptr->flags3 & RF3_DRAGON))
 234                 {
 235                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 236                         {
 237                                 r_ptr->r_flags3 |= RF3_DRAGON;
 238                         }
 239                         if (mult < 30) mult = 30;
 240                         if ((o_ptr->name1 == ART_BARD_ARROW) && (m_ptr->r_idx == MON_SMAUG) &&
 241                                 (sniper_ptr->inventory_list[INVEN_BOW].name1 == ART_BARD))
 242                                 mult *= 5;
 243                 }
 244
 245                 if (have_flag(flgs, TR_BRAND_ACID))
 246                 {
 247                         /* Notice immunity */
 248                         if (r_ptr->flagsr & RFR_EFF_IM_ACID_MASK)
 249                         {
 250                                 if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 251                                 {
 252                                         r_ptr->r_flagsr |= (r_ptr->flagsr & RFR_EFF_IM_ACID_MASK);
 253                                 }
 254                         }
 255                         else
 256                         {
 257                                 if (mult < 17) mult = 17;
 258                         }
 259                 }
 260
 261                 if (have_flag(flgs, TR_BRAND_ELEC))
 262                 {
 263                         /* Notice immunity */
 264                         if (r_ptr->flagsr & RFR_EFF_IM_ELEC_MASK)
 265                         {
 266                                 if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 267                                 {
 268                                         r_ptr->r_flagsr |= (r_ptr->flagsr & RFR_EFF_IM_ELEC_MASK);
 269                                 }
 270                         }
 271                         else
 272                         {
 273                                 if (mult < 17) mult = 17;
 274                         }
 275                 }
 276
 277                 if (have_flag(flgs, TR_BRAND_FIRE))
 278                 {
 279                         /* Notice immunity */
 280                         if (r_ptr->flagsr & RFR_EFF_IM_FIRE_MASK)
 281                         {
 282                                 if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 283                                 {
 284                                         r_ptr->r_flagsr |= (r_ptr->flagsr & RFR_EFF_IM_FIRE_MASK);
 285                                 }
 286                         }
 287                         /* Otherwise, take the damage */
 288                         else
 289                         {
 290                                 if (r_ptr->flags3 & RF3_HURT_FIRE)
 291                                 {
 292                                         if (mult < 25) mult = 25;
 293                                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 294                                         {
 295                                                 r_ptr->r_flags3 |= RF3_HURT_FIRE;
 296                                         }
 297                                 }
 298                                 else if (mult < 17) mult = 17;
 299                         }
 300                 }
 301
 302                 if (have_flag(flgs, TR_BRAND_COLD))
 303                 {
 304                         /* Notice immunity */
 305                         if (r_ptr->flagsr & RFR_EFF_IM_COLD_MASK)
 306                         {
 307                                 if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 308                                 {
 309                                         r_ptr->r_flagsr |= (r_ptr->flagsr & RFR_EFF_IM_COLD_MASK);
 310                                 }
 311                         }
 312                         /* Otherwise, take the damage */
 313                         else
 314                         {
 315                                 if (r_ptr->flags3 & RF3_HURT_COLD)
 316                                 {
 317                                         if (mult < 25) mult = 25;
 318                                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 319                                         {
 320                                                 r_ptr->r_flags3 |= RF3_HURT_COLD;
 321                                         }
 322                                 }
 323                                 else if (mult < 17) mult = 17;
 324                         }
 325                 }
 326
 327                 if (have_flag(flgs, TR_BRAND_POIS))
 328                 {
 329                         /* Notice immunity */
 330                         if (r_ptr->flagsr & RFR_EFF_IM_POIS_MASK)
 331                         {
 332                                 if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 333                                 {
 334                                         r_ptr->r_flagsr |= (r_ptr->flagsr & RFR_EFF_IM_POIS_MASK);
 335                                 }
 336                         }
 337                         /* Otherwise, take the damage */
 338                         else
 339                         {
 340                                 if (mult < 17) mult = 17;
 341                         }
 342                 }
 343
 344                 if ((have_flag(flgs, TR_FORCE_WEAPON)) && (sniper_ptr->csp > (sniper_ptr->msp / 30)))
 345                 {
 346                         sniper_ptr->csp -= (1 + (sniper_ptr->msp / 30));
 347                         sniper_ptr->redraw |= (PR_MANA);
 348                         mult = mult * 5 / 2;
 349                 }
 350                 break;
 351         }
 352         }
 353
 354         /* Sniper */
 355         if (snipe_type) mult = calc_snipe_damage_with_slay(sniper_ptr, mult, m_ptr, snipe_type);
 356
 357         /* Return the total damage */
 358         return (tdam * mult / 10);
 359 }
 360
 361
 362 /*!
 363  * @brief 射撃処理実行 /
 364  * Fire an object from the pack or floor.
 365  * @param item 射撃するオブジェクトの所持ID
 366  * @param j_ptr 射撃武器のオブジェクト参照ポインタ
 367  * @return なし
 368  * @details
 369  * <pre>
 370  * You may only fire items that "match" your missile launcher.
 371  * You must use slings + pebbles/shots, bows + arrows, xbows + bolts.
 372  * See "calc_bonuses()" for more calculations and such.
 373  * Note that "firing" a missile is MUCH better than "throwing" it.
 374  * Note: "unseen" monsters are very hard to hit.
 375  * Objects are more likely to break if they "attempt" to hit a monster.
 376  * Rangers (with Bows) and Anyone (with "Extra Shots") get extra shots.
 377  * The "extra shot" code works by decreasing the amount of energy
 378  * required to make each shot, spreading the shots out over time.
 379  * Note that when firing missiles, the launcher multiplier is applied
 380  * after all the bonuses are added in, making multipliers very useful.
 381  * Note that Bows of "Extra Might" get extra range and an extra bonus
 382  * for the damage multiplier.
 383  * Note that Bows of "Extra Shots" give an extra shot.
 384  * </pre>
 385  */
 386 void exe_fire(player_type *shooter_ptr, INVENTORY_IDX item, object_type *j_ptr, SPELL_IDX snipe_type)
 387 {
 388         DIRECTION dir;
 389         int i;
 390         POSITION y, x, ny, nx, ty, tx, prev_y, prev_x;
 391         int tdam_base, tdis, thits, tmul;
 392         int bonus, chance;
 393         int cur_dis, visible;
 394         PERCENTAGE j;
 395
 396         object_type forge;
 397         object_type *q_ptr;
 398
 399         object_type *o_ptr;
 400
 401         bool hit_body = FALSE;
 402
 403         GAME_TEXT o_name[MAX_NLEN];
 404
 405         u16b path_g[512];       /* For calcuration of path length */
 406
 407         int msec = delay_factor * delay_factor * delay_factor;
 408
 409         /* STICK TO */
 410         bool stick_to = FALSE;
 411
 412         /* Access the item (if in the pack) */
 413         if (item >= 0)
 414         {
 415                 o_ptr = &shooter_ptr->inventory_list[item];
 416         }
 417         else
 418         {
 419                 o_ptr = &shooter_ptr->current_floor_ptr->o_list[0 - item];
 420         }
 421
 422         /* Sniper - Cannot shot a single arrow twice */
 423         if ((snipe_type == SP_DOUBLE) && (o_ptr->number < 2)) snipe_type = SP_NONE;
 424
 425         object_desc(shooter_ptr, o_name, o_ptr, OD_OMIT_PREFIX);
 426
 427         /* Use the proper number of shots */
 428         thits = shooter_ptr->num_fire;
 429
 430         /* Use a base distance */
 431         tdis = 10;
 432
 433         /* Base damage from thrown object plus launcher bonus */
 434         tdam_base = damroll(o_ptr->dd, o_ptr->ds) + o_ptr->to_d + j_ptr->to_d;
 435
 436         /* Actually "fire" the object */
 437         bonus = (shooter_ptr->to_h_b + o_ptr->to_h + j_ptr->to_h);
 438         if ((j_ptr->sval == SV_LIGHT_XBOW) || (j_ptr->sval == SV_HEAVY_XBOW))
 439                 chance = (shooter_ptr->skill_thb + (shooter_ptr->weapon_exp[0][j_ptr->sval] / 400 + bonus) * BTH_PLUS_ADJ);
 440         else
 441                 chance = (shooter_ptr->skill_thb + ((shooter_ptr->weapon_exp[0][j_ptr->sval] - (WEAPON_EXP_MASTER / 2)) / 200 + bonus) * BTH_PLUS_ADJ);
 442
 443         shooter_ptr->energy_use = bow_energy(j_ptr->sval);
 444         tmul = bow_tmul(j_ptr->sval);
 445
 446         /* Get extra "power" from "extra might" */
 447         if (shooter_ptr->xtra_might) tmul++;
 448
 449         tmul = tmul * (100 + (int)(adj_str_td[shooter_ptr->stat_ind[A_STR]]) - 128);
 450
 451         /* Boost the damage */
 452         tdam_base *= tmul;
 453         tdam_base /= 100;
 454
 455         /* Base range */
 456         tdis = 13 + tmul / 80;
 457         if ((j_ptr->sval == SV_LIGHT_XBOW) || (j_ptr->sval == SV_HEAVY_XBOW))
 458         {
 459                 if (shooter_ptr->concent)
 460                         tdis -= (5 - (shooter_ptr->concent + 1) / 2);
 461                 else
 462                         tdis -= 5;
 463         }
 464
 465         project_length = tdis + 1;
 466
 467         /* Get a direction (or cancel) */
 468         if (!get_aim_dir(shooter_ptr, &dir))
 469         {
 470                 free_turn(shooter_ptr);
 471
 472                 if (snipe_type == SP_AWAY) snipe_type = SP_NONE;
 473
 474                 /* need not to reset project_length (already did)*/
 475
 476                 return;
 477         }
 478
 479         /* Predict the "target" location */
 480         tx = shooter_ptr->x + 99 * ddx[dir];
 481         ty = shooter_ptr->y + 99 * ddy[dir];
 482
 483         /* Check for "target request" */
 484         if ((dir == 5) && target_okay(shooter_ptr))
 485         {
 486                 tx = target_col;
 487                 ty = target_row;
 488         }
 489
 490         /* Get projection path length */
 491         tdis = project_path(shooter_ptr, path_g, project_length, shooter_ptr->y, shooter_ptr->x, ty, tx, PROJECT_PATH | PROJECT_THRU) - 1;
 492
 493         project_length = 0; /* reset to default */
 494
 495         /* Don't shoot at my feet */
 496         if (tx == shooter_ptr->x && ty == shooter_ptr->y)
 497         {
 498                 free_turn(shooter_ptr);
 499
 500                 /* project_length is already reset to 0 */
 501
 502                 return;
 503         }
 504
 505
 506         /* Take a (partial) turn */
 507         shooter_ptr->energy_use = (shooter_ptr->energy_use / thits);
 508         shooter_ptr->is_fired = TRUE;
 509
 510         /* Sniper - Difficult to shot twice at 1 turn */
 511         if (snipe_type == SP_DOUBLE)  shooter_ptr->concent = (shooter_ptr->concent + 1) / 2;
 512
 513         /* Sniper - Repeat shooting when double shots */
 514         for (i = 0; i < ((snipe_type == SP_DOUBLE) ? 2 : 1); i++)
 515         {
 516
 517                 /* Start at the player */
 518                 y = shooter_ptr->y;
 519                 x = shooter_ptr->x;
 520                 q_ptr = &forge;
 521                 object_copy(q_ptr, o_ptr);
 522
 523                 /* Single object */
 524                 q_ptr->number = 1;
 525
 526                 vary_item(shooter_ptr, item, -1);
 527
 528                 sound(SOUND_SHOOT);
 529                 handle_stuff(shooter_ptr);
 530
 531                 prev_y = y;
 532                 prev_x = x;
 533
 534                 /* The shot does not hit yet */
 535                 hit_body = FALSE;
 536
 537                 /* Travel until stopped */
 538                 for (cur_dis = 0; cur_dis <= tdis; )
 539                 {
 540                         grid_type *g_ptr;
 541
 542                         /* Hack -- Stop at the target */
 543                         if ((y == ty) && (x == tx)) break;
 544
 545                         /* Calculate the new location (see "project()") */
 546                         ny = y;
 547                         nx = x;
 548                         mmove2(&ny, &nx, shooter_ptr->y, shooter_ptr->x, ty, tx);
 549
 550                         /* Shatter Arrow */
 551                         if (snipe_type == SP_KILL_WALL)
 552                         {
 553                                 g_ptr = &shooter_ptr->current_floor_ptr->grid_array[ny][nx];
 554
 555                                 if (cave_have_flag_grid(g_ptr, FF_HURT_ROCK) && !g_ptr->m_idx)
 556                                 {
 557                                         if (g_ptr->info & (CAVE_MARK)) msg_print(_("岩が砕け散った。", "Wall rocks were shattered."));
 558                                         /* Forget the wall */
 559                                         g_ptr->info &= ~(CAVE_MARK);
 560                                         shooter_ptr->update |= (PU_VIEW | PU_LITE | PU_FLOW | PU_MON_LITE);
 561
 562                                         /* Destroy the wall */
 563                                         cave_alter_feat(shooter_ptr, ny, nx, FF_HURT_ROCK);
 564
 565                                         hit_body = TRUE;
 566                                         break;
 567                                 }
 568                         }
 569
 570                         /* Stopped by walls/doors */
 571                         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;
 572
 573                         /* Advance the distance */
 574                         cur_dis++;
 575
 576                         /* Sniper */
 577                         if (snipe_type == SP_LITE)
 578                         {
 579                                 shooter_ptr->current_floor_ptr->grid_array[ny][nx].info |= (CAVE_GLOW);
 580                                 note_spot(shooter_ptr, ny, nx);
 581                                 lite_spot(shooter_ptr, ny, nx);
 582                         }
 583
 584                         /* The player can see the (on screen) missile */
 585                         if (panel_contains(ny, nx) && player_can_see_bold(shooter_ptr, ny, nx))
 586                         {
 587                                 SYMBOL_CODE c = object_char(q_ptr);
 588                                 byte a = object_attr(q_ptr);
 589
 590                                 /* Draw, Hilite, Fresh, Pause, Erase */
 591                                 print_rel(shooter_ptr, c, a, ny, nx);
 592                                 move_cursor_relative(ny, nx);
 593                                 Term_fresh();
 594                                 Term_xtra(TERM_XTRA_DELAY, msec);
 595                                 lite_spot(shooter_ptr, ny, nx);
 596                                 Term_fresh();
 597                         }
 598
 599                         /* The player cannot see the missile */
 600                         else
 601                         {
 602                                 /* Pause anyway, for consistancy */
 603                                 Term_xtra(TERM_XTRA_DELAY, msec);
 604                         }
 605
 606                         /* Sniper */
 607                         if (snipe_type == SP_KILL_TRAP)
 608                         {
 609                                 project(shooter_ptr, 0, 0, ny, nx, 0, GF_KILL_TRAP,
 610                                         (PROJECT_JUMP | PROJECT_HIDE | PROJECT_GRID | PROJECT_ITEM), -1);
 611                         }
 612
 613                         /* Sniper */
 614                         if (snipe_type == SP_EVILNESS)
 615                         {
 616                                 shooter_ptr->current_floor_ptr->grid_array[ny][nx].info &= ~(CAVE_GLOW | CAVE_MARK);
 617                                 note_spot(shooter_ptr, ny, nx);
 618                                 lite_spot(shooter_ptr, ny, nx);
 619                         }
 620
 621                         prev_y = y;
 622                         prev_x = x;
 623
 624                         /* Save the new location */
 625                         x = nx;
 626                         y = ny;
 627
 628                         /* Monster here, Try to hit it */
 629                         if (shooter_ptr->current_floor_ptr->grid_array[y][x].m_idx)
 630                         {
 631                                 grid_type *c_mon_ptr = &shooter_ptr->current_floor_ptr->grid_array[y][x];
 632
 633                                 monster_type *m_ptr = &shooter_ptr->current_floor_ptr->m_list[c_mon_ptr->m_idx];
 634                                 monster_race *r_ptr = &r_info[m_ptr->r_idx];
 635
 636                                 /* Check the visibility */
 637                                 visible = m_ptr->ml;
 638
 639                                 /* Note the collision */
 640                                 hit_body = TRUE;
 641
 642                                 if (monster_csleep_remaining(m_ptr))
 643                                 {
 644                                         if (!(r_ptr->flags3 & RF3_EVIL) || one_in_(5)) chg_virtue(shooter_ptr, V_COMPASSION, -1);
 645                                         if (!(r_ptr->flags3 & RF3_EVIL) || one_in_(5)) chg_virtue(shooter_ptr, V_HONOUR, -1);
 646                                 }
 647
 648                                 if ((r_ptr->level + 10) > shooter_ptr->lev)
 649                                 {
 650                                         int now_exp = shooter_ptr->weapon_exp[0][j_ptr->sval];
 651                                         if (now_exp < s_info[shooter_ptr->pclass].w_max[0][j_ptr->sval])
 652                                         {
 653                                                 SUB_EXP amount = 0;
 654                                                 if (now_exp < WEAPON_EXP_BEGINNER) amount = 80;
 655                                                 else if (now_exp < WEAPON_EXP_SKILLED) amount = 25;
 656                                                 else if ((now_exp < WEAPON_EXP_EXPERT) && (shooter_ptr->lev > 19)) amount = 10;
 657                                                 else if (shooter_ptr->lev > 34) amount = 2;
 658                                                 shooter_ptr->weapon_exp[0][j_ptr->sval] += amount;
 659                                                 shooter_ptr->update |= (PU_BONUS);
 660                                         }
 661                                 }
 662
 663                                 if (shooter_ptr->riding)
 664                                 {
 665                                         if ((shooter_ptr->skill_exp[GINOU_RIDING] < s_info[shooter_ptr->pclass].s_max[GINOU_RIDING])
 666                                                 && ((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)
 667                                                 && one_in_(2))
 668                                         {
 669                                                 shooter_ptr->skill_exp[GINOU_RIDING] += 1;
 670                                                 shooter_ptr->update |= (PU_BONUS);
 671                                         }
 672                                 }
 673
 674                                 /* Did we hit it (penalize range) */
 675                                 if (test_hit_fire(shooter_ptr, chance - cur_dis, m_ptr, m_ptr->ml, o_name))
 676                                 {
 677                                         bool fear = FALSE;
 678                                         int tdam = tdam_base;
 679
 680                                         /* Get extra damage from concentration */
 681                                         if (shooter_ptr->concent) tdam = boost_concentration_damage(shooter_ptr, tdam);
 682
 683                                         /* Handle unseen monster */
 684                                         if (!visible)
 685                                         {
 686                                                 /* Invisible monster */
 687                                                 msg_format(_("%sが敵を捕捉した。", "The %s finds a mark."), o_name);
 688                                         }
 689
 690                                         /* Handle visible monster */
 691                                         else
 692                                         {
 693                                                 GAME_TEXT m_name[MAX_NLEN];
 694
 695                                                 /* Get "the monster" or "it" */
 696                                                 monster_desc(shooter_ptr, m_name, m_ptr, 0);
 697
 698                                                 msg_format(_("%sが%sに命中した。", "The %s hits %s."), o_name, m_name);
 699
 700                                                 if (m_ptr->ml)
 701                                                 {
 702                                                         if (!shooter_ptr->image) monster_race_track(shooter_ptr, m_ptr->ap_r_idx);
 703                                                         health_track(shooter_ptr, c_mon_ptr->m_idx);
 704                                                 }
 705                                         }
 706
 707                                         if (snipe_type == SP_NEEDLE)
 708                                         {
 709                                                 if ((randint1(randint1(r_ptr->level / (3 + shooter_ptr->concent)) + (8 - shooter_ptr->concent)) == 1)
 710                                                         && !(r_ptr->flags1 & RF1_UNIQUE) && !(r_ptr->flags7 & RF7_UNIQUE2))
 711                                                 {
 712                                                         GAME_TEXT m_name[MAX_NLEN];
 713
 714                                                         /* Get "the monster" or "it" */
 715                                                         monster_desc(shooter_ptr, m_name, m_ptr, 0);
 716
 717                                                         tdam = m_ptr->hp + 1;
 718                                                         msg_format(_("%sの急所に突き刺さった！", "Your shot hit a fatal spot of %s!"), m_name);
 719                                                 }
 720                                                 else tdam = 1;
 721                                         }
 722                                         else
 723                                         {
 724                                                 /* Apply special damage */
 725                                                 tdam = calc_shot_damage_with_slay(shooter_ptr, q_ptr, tdam, m_ptr, snipe_type);
 726                                                 tdam = critical_shot(shooter_ptr, q_ptr->weight, q_ptr->to_h, j_ptr->to_h, tdam);
 727
 728                                                 /* No negative damage */
 729                                                 if (tdam < 0) tdam = 0;
 730
 731                                                 /* Modify the damage */
 732                                                 tdam = mon_damage_mod(shooter_ptr, m_ptr, tdam, FALSE);
 733                                         }
 734
 735                                         msg_format_wizard(CHEAT_MONSTER,
 736                                                 _("%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))"),
 737                                                 tdam, m_ptr->hp - tdam, m_ptr->maxhp, m_ptr->max_maxhp);
 738
 739                                         /* Sniper */
 740                                         if (snipe_type == SP_EXPLODE)
 741                                         {
 742                                                 u16b flg = (PROJECT_STOP | PROJECT_JUMP | PROJECT_KILL | PROJECT_GRID);
 743
 744                                                 sound(SOUND_EXPLODE); /* No explode sound - use breath fire instead */
 745                                                 project(shooter_ptr, 0, ((shooter_ptr->concent + 1) / 2 + 1), ny, nx, tdam, GF_MISSILE, flg, -1);
 746                                                 break;
 747                                         }
 748
 749                                         /* Sniper */
 750                                         if (snipe_type == SP_HOLYNESS)
 751                                         {
 752                                                 shooter_ptr->current_floor_ptr->grid_array[ny][nx].info |= (CAVE_GLOW);
 753                                                 note_spot(shooter_ptr, ny, nx);
 754                                                 lite_spot(shooter_ptr, ny, nx);
 755                                         }
 756
 757                                         /* Hit the monster, check for death */
 758                                         if (mon_take_hit(shooter_ptr, c_mon_ptr->m_idx, tdam, &fear, extract_note_dies(real_r_idx(m_ptr))))
 759                                         {
 760                                                 /* Dead monster */
 761                                         }
 762
 763                                         /* No death */
 764                                         else
 765                                         {
 766                                                 /* STICK TO */
 767                                                 if (object_is_fixed_artifact(q_ptr) &&
 768                                                         (shooter_ptr->pclass != CLASS_SNIPER || shooter_ptr->concent == 0))
 769                                                 {
 770                                                         GAME_TEXT m_name[MAX_NLEN];
 771
 772                                                         monster_desc(shooter_ptr, m_name, m_ptr, 0);
 773
 774                                                         stick_to = TRUE;
 775                                                         msg_format(_("%sは%sに突き刺さった！", "%^s is stuck in %s!"), o_name, m_name);
 776                                                 }
 777
 778                                                 message_pain(shooter_ptr, c_mon_ptr->m_idx, tdam);
 779
 780                                                 /* Anger the monster */
 781                                                 if (tdam > 0) anger_monster(shooter_ptr, m_ptr);
 782
 783                                                 if (fear && m_ptr->ml)
 784                                                 {
 785                                                         GAME_TEXT m_name[MAX_NLEN];
 786                                                         sound(SOUND_FLEE);
 787                                                         monster_desc(shooter_ptr, m_name, m_ptr, 0);
 788                                                         msg_format(_("%^sは恐怖して逃げ出した！", "%^s flees in terror!"), m_name);
 789                                                 }
 790
 791                                                 set_target(m_ptr, shooter_ptr->y, shooter_ptr->x);
 792
 793                                                 /* Sniper */
 794                                                 if (snipe_type == SP_RUSH)
 795                                                 {
 796                                                         int n = randint1(5) + 3;
 797                                                         MONSTER_IDX m_idx = c_mon_ptr->m_idx;
 798
 799                                                         for (; cur_dis <= tdis; )
 800                                                         {
 801                                                                 POSITION ox = nx;
 802                                                                 POSITION oy = ny;
 803
 804                                                                 if (!n) break;
 805
 806                                                                 /* Calculate the new location (see "project()") */
 807                                                                 mmove2(&ny, &nx, shooter_ptr->y, shooter_ptr->x, ty, tx);
 808
 809                                                                 /* Stopped by wilderness boundary */
 810                                                                 if (!in_bounds2(shooter_ptr->current_floor_ptr, ny, nx)) break;
 811
 812                                                                 /* Stopped by walls/doors */
 813                                                                 if (!player_can_enter(shooter_ptr, shooter_ptr->current_floor_ptr->grid_array[ny][nx].feat, 0)) break;
 814
 815                                                                 /* Stopped by monsters */
 816                                                                 if (!is_cave_empty_bold(shooter_ptr, ny, nx)) break;
 817
 818                                                                 shooter_ptr->current_floor_ptr->grid_array[ny][nx].m_idx = m_idx;
 819                                                                 shooter_ptr->current_floor_ptr->grid_array[oy][ox].m_idx = 0;
 820
 821                                                                 m_ptr->fx = nx;
 822                                                                 m_ptr->fy = ny;
 823
 824                                                                 update_monster(shooter_ptr, c_mon_ptr->m_idx, TRUE);
 825
 826                                                                 lite_spot(shooter_ptr, ny, nx);
 827                                                                 lite_spot(shooter_ptr, oy, ox);
 828
 829                                                                 Term_fresh();
 830                                                                 Term_xtra(TERM_XTRA_DELAY, msec);
 831
 832                                                                 x = nx;
 833                                                                 y = ny;
 834                                                                 cur_dis++;
 835                                                                 n--;
 836                                                         }
 837                                                 }
 838                                         }
 839                                 }
 840
 841                                 /* Sniper */
 842                                 if (snipe_type == SP_PIERCE)
 843                                 {
 844                                         if (shooter_ptr->concent < 1) break;
 845                                         shooter_ptr->concent--;
 846                                         continue;
 847                                 }
 848
 849                                 /* Stop looking */
 850                                 break;
 851                         }
 852                 }
 853
 854                 /* Chance of breakage (during attacks) */
 855                 j = (hit_body ? breakage_chance(shooter_ptr, q_ptr, shooter_ptr->pclass == CLASS_ARCHER, snipe_type) : 0);
 856
 857                 if (stick_to)
 858                 {
 859                         MONSTER_IDX m_idx = shooter_ptr->current_floor_ptr->grid_array[y][x].m_idx;
 860                         monster_type *m_ptr = &shooter_ptr->current_floor_ptr->m_list[m_idx];
 861                         OBJECT_IDX o_idx = o_pop(shooter_ptr->current_floor_ptr);
 862
 863                         if (!o_idx)
 864                         {
 865                                 msg_format(_("%sはどこかへ行った。", "The %s went somewhere."), o_name);
 866                                 if (object_is_fixed_artifact(q_ptr))
 867                                 {
 868                                         a_info[j_ptr->name1].cur_num = 0;
 869                                 }
 870                                 return;
 871                         }
 872
 873                         o_ptr = &shooter_ptr->current_floor_ptr->o_list[o_idx];
 874                         object_copy(o_ptr, q_ptr);
 875
 876                         /* Forget mark */
 877                         o_ptr->marked &= OM_TOUCHED;
 878
 879                         /* Forget location */
 880                         o_ptr->iy = o_ptr->ix = 0;
 881
 882                         /* Memorize monster */
 883                         o_ptr->held_m_idx = m_idx;
 884
 885                         /* Build a stack */
 886                         o_ptr->next_o_idx = m_ptr->hold_o_idx;
 887
 888                         /* Carry object */
 889                         m_ptr->hold_o_idx = o_idx;
 890                 }
 891                 else if (cave_have_flag_bold(shooter_ptr->current_floor_ptr, y, x, FF_PROJECT))
 892                 {
 893                         /* Drop (or break) near that location */
 894                         (void)drop_near(shooter_ptr, q_ptr, j, y, x);
 895                 }
 896                 else
 897                 {
 898                         /* Drop (or break) near that location */
 899                         (void)drop_near(shooter_ptr, q_ptr, j, prev_y, prev_x);
 900                 }
 901
 902                 /* Sniper - Repeat shooting when double shots */
 903         }
 904
 905         /* Sniper - Loose his/her concentration after any shot */
 906         if (shooter_ptr->concent) reset_concentration(shooter_ptr, FALSE);
 907 }
 908
 909
 910 /*!
 911 * @brief プレイヤーからモンスターへの射撃命中判定 /
 912 * Determine if the player "hits" a monster (normal combat).
 913 * @param chance 基本命中値
 914 * @param m_ptr モンスターの構造体参照ポインタ
 915 * @param vis 目標を視界に捕らえているならばTRUEを指定
 916 * @param o_name メッセージ表示時のモンスター名
 917 * @return 命中と判定された場合TRUEを返す
 918 * @note Always miss 5%, always hit 5%, otherwise random.
 919 */
 920 bool test_hit_fire(player_type *shooter_ptr, int chance, monster_type *m_ptr, int vis, char* o_name)
 921 {
 922         int k;
 923         ARMOUR_CLASS ac;
 924         monster_race *r_ptr = &r_info[m_ptr->r_idx];
 925
 926         /* Percentile dice */
 927         k = randint1(100);
 928
 929         /* Snipers with high-concentration reduce instant miss percentage.*/
 930         k += shooter_ptr->concent;
 931
 932         /* Hack -- Instant miss or hit */
 933         if (k <= 5) return FALSE;
 934         if (k > 95) return TRUE;
 935
 936         if (shooter_ptr->pseikaku == PERSONALITY_LAZY)
 937                 if (one_in_(20)) return FALSE;
 938
 939         /* Never hit */
 940         if (chance <= 0) return FALSE;
 941
 942         ac = r_ptr->ac;
 943         if (shooter_ptr->concent)
 944         {
 945                 ac *= (8 - shooter_ptr->concent);
 946                 ac /= 8;
 947         }
 948
 949         if (m_ptr->r_idx == MON_GOEMON && !monster_csleep_remaining(m_ptr)) ac *= 3;
 950
 951         /* Invisible monsters are harder to hit */
 952         if (!vis) chance = (chance + 1) / 2;
 953
 954         /* Power competes against armor */
 955         if (randint0(chance) < (ac * 3 / 4))
 956         {
 957                 if (m_ptr->r_idx == MON_GOEMON && !monster_csleep_remaining(m_ptr))
 958                 {
 959                         GAME_TEXT m_name[MAX_NLEN];
 960                         monster_desc(shooter_ptr, m_name, m_ptr, 0);
 961                         msg_format(_("%sは%sを斬り捨てた！", "%s cuts down %s!"), m_name, o_name);
 962                 }
 963                 return FALSE;
 964         }
 965
 966         /* Assume hit */
 967         return TRUE;
 968 }
 969
 970
 971
 972
 973 /*!
 974 * @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 /
 975 * Critical hits (from objects thrown by player) Factor in item weight, total plusses, and player level.
 976 * @param weight 矢弾の重量
 977 * @param plus_ammo 矢弾の命中修正
 978 * @param plus_bow 弓の命中修正
 979 * @param dam 現在算出中のダメージ値
 980 * @return クリティカル修正が入ったダメージ値
 981 */
 982 HIT_POINT critical_shot(player_type *shooter_ptr, WEIGHT weight, int plus_ammo, int plus_bow, HIT_POINT dam)
 983 {
 984         int i, k;
 985         object_type *j_ptr = &shooter_ptr->inventory_list[INVEN_BOW];
 986
 987         /* Extract "shot" power */
 988         i = shooter_ptr->to_h_b + plus_ammo;
 989
 990         if (shooter_ptr->tval_ammo == TV_BOLT)
 991                 i = (shooter_ptr->skill_thb + (shooter_ptr->weapon_exp[0][j_ptr->sval] / 400 + i) * BTH_PLUS_ADJ);
 992         else
 993                 i = (shooter_ptr->skill_thb + ((shooter_ptr->weapon_exp[0][j_ptr->sval] - (WEAPON_EXP_MASTER / 2)) / 200 + i) * BTH_PLUS_ADJ);
 994
 995
 996         /* Snipers can shot more critically with crossbows */
 997         if (shooter_ptr->concent) i += ((i * shooter_ptr->concent) / 5);
 998         if ((shooter_ptr->pclass == CLASS_SNIPER) && (shooter_ptr->tval_ammo == TV_BOLT)) i *= 2;
 999
1000         /* Good bow makes more critical */
1001         i += plus_bow * 8 * (shooter_ptr->concent ? shooter_ptr->concent + 5 : 5);
1002
1003         /* Critical hit */
1004         if (randint1(10000) <= i)
1005         {
1006                 k = weight * randint1(500);
1007
1008                 if (k < 900)
1009                 {
1010                         msg_print(_("手ごたえがあった！", "It was a good hit!"));
1011                         dam += (dam / 2);
1012                 }
1013                 else if (k < 1350)
1014                 {
1015                         msg_print(_("かなりの手ごたえがあった！", "It was a great hit!"));
1016                         dam *= 2;
1017                 }
1018                 else
1019                 {
1020                         msg_print(_("会心の一撃だ！", "It was a superb hit!"));
1021                         dam *= 3;
1022                 }
1023         }
1024
1025         return (dam);
1026 }
1027
1028
1029
1030
1031 /*!
1032  * @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
1033  * @param sval 射撃武器のアイテム副分類ID
1034  * @return 消費する基本エネルギー
1035  */
1036 ENERGY bow_energy(OBJECT_SUBTYPE_VALUE sval)
1037 {
1038         ENERGY energy = 10000;
1039
1040         /* Analyze the launcher */
1041         switch (sval)
1042         {
1043                 /* Sling and ammo */
1044         case SV_SLING:
1045         {
1046                 energy = 8000;
1047                 break;
1048         }
1049
1050         /* Short Bow and Arrow */
1051         case SV_SHORT_BOW:
1052         {
1053                 energy = 10000;
1054                 break;
1055         }
1056
1057         /* Long Bow and Arrow */
1058         case SV_LONG_BOW:
1059         {
1060                 energy = 10000;
1061                 break;
1062         }
1063
1064         /* Bow of irresponsiblity and Arrow */
1065         case SV_NAMAKE_BOW:
1066         {
1067                 energy = 7777;
1068                 break;
1069         }
1070
1071         /* Light Crossbow and Bolt */
1072         case SV_LIGHT_XBOW:
1073         {
1074                 energy = 12000;
1075                 break;
1076         }
1077
1078         /* Heavy Crossbow and Bolt */
1079         case SV_HEAVY_XBOW:
1080         {
1081                 energy = 13333;
1082                 break;
1083         }
1084         }
1085
1086         return (energy);
1087 }
1088
1089
1090 /*
1091  * Return bow tmul
1092  */
1093 int bow_tmul(OBJECT_SUBTYPE_VALUE sval)
1094 {
1095         int tmul = 0;
1096
1097         /* Analyze the launcher */
1098         switch (sval)
1099         {
1100                 /* Sling and ammo */
1101         case SV_SLING:
1102         {
1103                 tmul = 2;
1104                 break;
1105         }
1106
1107         /* Short Bow and Arrow */
1108         case SV_SHORT_BOW:
1109         {
1110                 tmul = 2;
1111                 break;
1112         }
1113
1114         /* Long Bow and Arrow */
1115         case SV_LONG_BOW:
1116         {
1117                 tmul = 3;
1118                 break;
1119         }
1120
1121         /* Bow of irresponsiblity and Arrow */
1122         case SV_NAMAKE_BOW:
1123         {
1124                 tmul = 3;
1125                 break;
1126         }
1127
1128         /* Light Crossbow and Bolt */
1129         case SV_LIGHT_XBOW:
1130         {
1131                 tmul = 3;
1132                 break;
1133         }
1134
1135         /* Heavy Crossbow and Bolt */
1136         case SV_HEAVY_XBOW:
1137         {
1138                 tmul = 4;
1139                 break;
1140         }
1141         }
1142
1143         return (tmul);
1144 }
1145
1146
1147 /*!
1148  * @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
1149  * @param shooter_ptr 射撃を行うクリーチャー参照ポインタ
1150  * @param plus_ammo 矢弾のダメージ修正
1151  * @param plus_bow 弓のダメージ修正
1152  * @return ダメージ期待値
1153  * @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。
1154  */
1155 HIT_POINT calc_crit_ratio_shot(player_type* shooter_ptr, HIT_POINT plus_ammo, HIT_POINT plus_bow)
1156 {
1157         HIT_POINT i;
1158         object_type *j_ptr = &shooter_ptr->inventory_list[INVEN_BOW];
1159
1160         /* Extract "shot" power */
1161         i = shooter_ptr->to_h_b + plus_ammo;
1162
1163         if (shooter_ptr->tval_ammo == TV_BOLT)
1164                 i = (shooter_ptr->skill_thb + (shooter_ptr->weapon_exp[0][j_ptr->sval] / 400 + i) * BTH_PLUS_ADJ);
1165         else
1166                 i = (shooter_ptr->skill_thb + ((shooter_ptr->weapon_exp[0][j_ptr->sval] - (WEAPON_EXP_MASTER / 2)) / 200 + i) * BTH_PLUS_ADJ);
1167
1168         /* Snipers can shot more critically with crossbows */
1169         if (shooter_ptr->concent) i += ((i * shooter_ptr->concent) / 5);
1170         if ((shooter_ptr->pclass == CLASS_SNIPER) && (shooter_ptr->tval_ammo == TV_BOLT)) i *= 2;
1171
1172         /* Good bow makes more critical */
1173         i += plus_bow * 8 * (shooter_ptr->concent ? shooter_ptr->concent + 5 : 5);
1174
1175         if (i < 0) i = 0;
1176
1177         return i;
1178 }
1179
1180 /*!
1181  * @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
1182  * @param weight 武器の重量
1183  * @param plus_ammo 矢弾のダメージ修正
1184  * @param plus_bow 弓のダメージ修正
1185  * @param dam 基本ダメージ量
1186  * @return ダメージ期待値
1187  */
1188 HIT_POINT calc_expect_crit_shot(player_type *shooter_ptr, WEIGHT weight, int plus_ammo, int plus_bow, HIT_POINT dam)
1189 {
1190         u32b num;
1191         int i, k, crit;
1192         i = calc_crit_ratio_shot(shooter_ptr, plus_ammo, plus_bow);
1193
1194         k = 0;
1195         num = 0;
1196
1197         crit = MIN(500, 900 / weight);
1198         num += dam * 3 / 2 * crit;
1199         k = crit;
1200
1201         crit = MIN(500, 1350 / weight);
1202         crit -= k;
1203         num += dam * 2 * crit;
1204         k += crit;
1205
1206         if (k < 500)
1207         {
1208                 crit = 500 - k;
1209                 num += dam * 3 * crit;
1210         }
1211
1212         num /= 500;
1213
1214         num *= i;
1215         num += (10000 - i) * dam;
1216         num /= 10000;
1217
1218         return num;
1219 }
1220
1221 /*!
1222  * @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
1223  * @param shooter_ptr プレーヤーへの参照ポインタ
1224  * @param weight 武器の重量
1225  * @param plus 武器のダメージ修正
1226  * @param dam 基本ダメージ
1227  * @param meichuu 命中値
1228  * @param dokubari 毒針処理か否か
1229  * @return ダメージ期待値
1230  */
1231 HIT_POINT calc_expect_crit(player_type *shooter_ptr, WEIGHT weight, int plus, HIT_POINT dam, s16b meichuu, bool dokubari)
1232 {
1233         u32b k, num;
1234         if (dokubari) return dam;
1235
1236         int i = (weight + (meichuu * 3 + plus * 5) + shooter_ptr->skill_thn);
1237         if (i < 0) i = 0;
1238
1239         k = weight;
1240         num = 0;
1241
1242         if (k < 400)                                            num += (2 * dam + 5) * (400 - k);
1243         if (k < 700)                                            num += (2 * dam + 10) * (MIN(700, k + 650) - MAX(400, k));
1244         if (k > (700 - 650) && k < 900)         num += (3 * dam + 15) * (MIN(900, k + 650) - MAX(700, k));
1245         if (k > (900 - 650) && k < 1300)                num += (3 * dam + 20) * (MIN(1300, k + 650) - MAX(900, k));
1246         if (k > (1300 - 650))                                   num += (7 * dam / 2 + 25) * MIN(650, k - (1300 - 650));
1247
1248         num /= 650;
1249         if (shooter_ptr->pclass == CLASS_NINJA)
1250         {
1251                 num *= i;
1252                 num += (4444 - i) * dam;
1253                 num /= 4444;
1254         }
1255         else
1256         {
1257                 num *= i;
1258                 num += (5000 - i) * dam;
1259                 num /= 5000;
1260         }
1261
1262         return num;
1263 }
1264