src/combat/shoot.c

   1 #include "combat/shoot.h"
   2 #include "art-definition/art-bow-types.h"
   3 #include "core/stuff-handler.h"
   4 #include "effect/effect-characteristics.h"
   5 #include "effect/spells-effect-util.h"
   6 #include "floor/floor-object.h"
   7 #include "game-option/cheat-types.h"
   8 #include "game-option/special-options.h"
   9 #include "grid/feature.h"
  10 #include "grid/grid.h"
  11 #include "inventory/inventory-object.h"
  12 #include "inventory/inventory-slot-types.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/mind-sniper.h"
  19 #include "mind/snipe-types.h"
  20 #include "monster-floor/monster-death.h"
  21 #include "monster-floor/monster-move.h"
  22 #include "monster-race/monster-race.h"
  23 #include "monster-race/race-flags-resistance.h"
  24 #include "monster-race/race-flags1.h"
  25 #include "monster-race/race-flags2.h"
  26 #include "monster-race/race-flags3.h"
  27 #include "monster-race/race-flags7.h"
  28 #include "monster-race/race-indice-types.h"
  29 #include "monster/monster-describer.h"
  30 #include "monster/monster-info.h"
  31 #include "monster/monster-status.h"
  32 #include "monster/monster-update.h"
  33 #include "object-enchant/artifact.h"
  34 #include "object-enchant/tr-types.h"
  35 #include "object-hook/hook-enchant.h"
  36 #include "object/object-broken.h"
  37 #include "object/object-flags.h"
  38 #include "object/object-flavor.h"
  39 #include "object/object-generator.h"
  40 #include "object/object-info.h"
  41 #include "object/object-kind.h"
  42 #include "object/object-mark-types.h"
  43 #include "player/avatar.h"
  44 #include "player/player-class.h"
  45 #include "player/player-personalities-types.h"
  46 #include "player/player-skill.h"
  47 #include "player/player-status.h"
  48 #include "spell/process-effect.h"
  49 #include "spell/spell-types.h"
  50 #include "sv-definition/sv-bow-types.h"
  51 #include "util/bit-flags-calculator.h"
  52 #include "view/display-messages.h"
  53 #include "wizard/wizard-messages.h"
  54 #include "world/world-object.h"
  55
  56 /*!
  57  * @brief 矢弾を射撃した際のスレイ倍率をかけた結果を返す /
  58  * Determines the odds of an object breaking when thrown at a monster
  59  * @param o_ptr 矢弾のオブジェクト構造体参照ポインタ
  60  * @param tdam 計算途中のダメージ量
  61  * @param m_ptr 目標モンスターの構造体参照ポインタ
  62  * @return スレイ倍率をかけたダメージ量
  63  */
  64 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)
  65 {
  66         MULTIPLY mult = 10;
  67
  68         monster_race *r_ptr = &r_info[m_ptr->r_idx];
  69
  70         BIT_FLAGS flgs[TR_FLAG_SIZE];
  71         object_flags(sniper_ptr, o_ptr, flgs);
  72
  73         /* Some "weapons" and "ammo" do extra damage */
  74         switch (o_ptr->tval)
  75         {
  76         case TV_SHOT:
  77         case TV_ARROW:
  78         case TV_BOLT:
  79         {
  80                 if ((have_flag(flgs, TR_SLAY_ANIMAL)) && (r_ptr->flags3 & RF3_ANIMAL))
  81                 {
  82                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
  83                         {
  84                                 r_ptr->r_flags3 |= RF3_ANIMAL;
  85                         }
  86                         if (mult < 17) mult = 17;
  87                 }
  88
  89                 if ((have_flag(flgs, TR_KILL_ANIMAL)) && (r_ptr->flags3 & RF3_ANIMAL))
  90                 {
  91                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
  92                         {
  93                                 r_ptr->r_flags3 |= RF3_ANIMAL;
  94                         }
  95                         if (mult < 27) mult = 27;
  96                 }
  97
  98                 if ((have_flag(flgs, TR_SLAY_EVIL)) && (r_ptr->flags3 & RF3_EVIL))
  99                 {
 100                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 101                         {
 102                                 r_ptr->r_flags3 |= RF3_EVIL;
 103                         }
 104                         if (mult < 15) mult = 15;
 105                 }
 106
 107                 if ((have_flag(flgs, TR_KILL_EVIL)) && (r_ptr->flags3 & RF3_EVIL))
 108                 {
 109                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 110                         {
 111                                 r_ptr->r_flags3 |= RF3_EVIL;
 112                         }
 113                         if (mult < 25) mult = 25;
 114                 }
 115
 116                 if ((have_flag(flgs, TR_SLAY_HUMAN)) && (r_ptr->flags2 & RF2_HUMAN))
 117                 {
 118                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 119                         {
 120                                 r_ptr->r_flags2 |= RF2_HUMAN;
 121                         }
 122                         if (mult < 17) mult = 17;
 123                 }
 124
 125                 if ((have_flag(flgs, TR_KILL_HUMAN)) && (r_ptr->flags2 & RF2_HUMAN))
 126                 {
 127                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 128                         {
 129                                 r_ptr->r_flags2 |= RF2_HUMAN;
 130                         }
 131                         if (mult < 27) mult = 27;
 132                 }
 133
 134                 if ((have_flag(flgs, TR_SLAY_UNDEAD)) && (r_ptr->flags3 & RF3_UNDEAD))
 135                 {
 136                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 137                         {
 138                                 r_ptr->r_flags3 |= RF3_UNDEAD;
 139                         }
 140                         if (mult < 20) mult = 20;
 141                 }
 142
 143                 if ((have_flag(flgs, TR_KILL_UNDEAD)) && (r_ptr->flags3 & RF3_UNDEAD))
 144                 {
 145                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 146                         {
 147                                 r_ptr->r_flags3 |= RF3_UNDEAD;
 148                         }
 149                         if (mult < 30) mult = 30;
 150                 }
 151
 152                 if ((have_flag(flgs, TR_SLAY_DEMON)) && (r_ptr->flags3 & RF3_DEMON))
 153                 {
 154                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 155                         {
 156                                 r_ptr->r_flags3 |= RF3_DEMON;
 157                         }
 158                         if (mult < 20) mult = 20;
 159                 }
 160
 161                 if ((have_flag(flgs, TR_KILL_DEMON)) && (r_ptr->flags3 & RF3_DEMON))
 162                 {
 163                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 164                         {
 165                                 r_ptr->r_flags3 |= RF3_DEMON;
 166                         }
 167                         if (mult < 30) mult = 30;
 168                 }
 169
 170                 if ((have_flag(flgs, TR_SLAY_ORC)) && (r_ptr->flags3 & RF3_ORC))
 171                 {
 172                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 173                         {
 174                                 r_ptr->r_flags3 |= RF3_ORC;
 175                         }
 176                         if (mult < 20) mult = 20;
 177                 }
 178
 179                 if ((have_flag(flgs, TR_KILL_ORC)) && (r_ptr->flags3 & RF3_ORC))
 180                 {
 181                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 182                         {
 183                                 r_ptr->r_flags3 |= RF3_ORC;
 184                         }
 185                         if (mult < 30) mult = 30;
 186                 }
 187
 188                 if ((have_flag(flgs, TR_SLAY_TROLL)) && (r_ptr->flags3 & RF3_TROLL))
 189                 {
 190                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 191                         {
 192                                 r_ptr->r_flags3 |= RF3_TROLL;
 193                         }
 194
 195                         if (mult < 20) mult = 20;
 196                 }
 197
 198                 if ((have_flag(flgs, TR_KILL_TROLL)) && (r_ptr->flags3 & RF3_TROLL))
 199                 {
 200                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 201                         {
 202                                 r_ptr->r_flags3 |= RF3_TROLL;
 203                         }
 204                         if (mult < 30) mult = 30;
 205                 }
 206
 207                 if ((have_flag(flgs, TR_SLAY_GIANT)) && (r_ptr->flags3 & RF3_GIANT))
 208                 {
 209                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 210                         {
 211                                 r_ptr->r_flags3 |= RF3_GIANT;
 212                         }
 213                         if (mult < 20) mult = 20;
 214                 }
 215
 216                 if ((have_flag(flgs, TR_KILL_GIANT)) && (r_ptr->flags3 & RF3_GIANT))
 217                 {
 218                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 219                         {
 220                                 r_ptr->r_flags3 |= RF3_GIANT;
 221                         }
 222                         if (mult < 30) mult = 30;
 223                 }
 224
 225                 if ((have_flag(flgs, TR_SLAY_DRAGON)) && (r_ptr->flags3 & RF3_DRAGON))
 226                 {
 227                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 228                         {
 229                                 r_ptr->r_flags3 |= RF3_DRAGON;
 230                         }
 231                         if (mult < 20) mult = 20;
 232                 }
 233
 234                 if ((have_flag(flgs, TR_KILL_DRAGON)) && (r_ptr->flags3 & RF3_DRAGON))
 235                 {
 236                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 237                         {
 238                                 r_ptr->r_flags3 |= RF3_DRAGON;
 239                         }
 240                         if (mult < 30) mult = 30;
 241                         if ((o_ptr->name1 == ART_BARD_ARROW) && (m_ptr->r_idx == MON_SMAUG) &&
 242                                 (sniper_ptr->inventory_list[INVEN_BOW].name1 == ART_BARD))
 243                                 mult *= 5;
 244                 }
 245
 246                 if (have_flag(flgs, TR_BRAND_ACID))
 247                 {
 248                         /* Notice immunity */
 249                         if (r_ptr->flagsr & RFR_EFF_IM_ACID_MASK)
 250                         {
 251                                 if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 252                                 {
 253                                         r_ptr->r_flagsr |= (r_ptr->flagsr & RFR_EFF_IM_ACID_MASK);
 254                                 }
 255                         }
 256                         else
 257                         {
 258                                 if (mult < 17) mult = 17;
 259                         }
 260                 }
 261
 262                 if (have_flag(flgs, TR_BRAND_ELEC))
 263                 {
 264                         /* Notice immunity */
 265                         if (r_ptr->flagsr & RFR_EFF_IM_ELEC_MASK)
 266                         {
 267                                 if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 268                                 {
 269                                         r_ptr->r_flagsr |= (r_ptr->flagsr & RFR_EFF_IM_ELEC_MASK);
 270                                 }
 271                         }
 272                         else
 273                         {
 274                                 if (mult < 17) mult = 17;
 275                         }
 276                 }
 277
 278                 if (have_flag(flgs, TR_BRAND_FIRE))
 279                 {
 280                         /* Notice immunity */
 281                         if (r_ptr->flagsr & RFR_EFF_IM_FIRE_MASK)
 282                         {
 283                                 if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 284                                 {
 285                                         r_ptr->r_flagsr |= (r_ptr->flagsr & RFR_EFF_IM_FIRE_MASK);
 286                                 }
 287                         }
 288                         /* Otherwise, take the damage */
 289                         else
 290                         {
 291                                 if (r_ptr->flags3 & RF3_HURT_FIRE)
 292                                 {
 293                                         if (mult < 25) mult = 25;
 294                                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 295                                         {
 296                                                 r_ptr->r_flags3 |= RF3_HURT_FIRE;
 297                                         }
 298                                 }
 299                                 else if (mult < 17) mult = 17;
 300                         }
 301                 }
 302
 303                 if (have_flag(flgs, TR_BRAND_COLD))
 304                 {
 305                         /* Notice immunity */
 306                         if (r_ptr->flagsr & RFR_EFF_IM_COLD_MASK)
 307                         {
 308                                 if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 309                                 {
 310                                         r_ptr->r_flagsr |= (r_ptr->flagsr & RFR_EFF_IM_COLD_MASK);
 311                                 }
 312                         }
 313                         /* Otherwise, take the damage */
 314                         else
 315                         {
 316                                 if (r_ptr->flags3 & RF3_HURT_COLD)
 317                                 {
 318                                         if (mult < 25) mult = 25;
 319                                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 320                                         {
 321                                                 r_ptr->r_flags3 |= RF3_HURT_COLD;
 322                                         }
 323                                 }
 324                                 else if (mult < 17) mult = 17;
 325                         }
 326                 }
 327
 328                 if (have_flag(flgs, TR_BRAND_POIS))
 329                 {
 330                         /* Notice immunity */
 331                         if (r_ptr->flagsr & RFR_EFF_IM_POIS_MASK)
 332                         {
 333                                 if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 334                                 {
 335                                         r_ptr->r_flagsr |= (r_ptr->flagsr & RFR_EFF_IM_POIS_MASK);
 336                                 }
 337                         }
 338                         /* Otherwise, take the damage */
 339                         else
 340                         {
 341                                 if (mult < 17) mult = 17;
 342                         }
 343                 }
 344
 345                 if ((have_flag(flgs, TR_FORCE_WEAPON)) && (sniper_ptr->csp > (sniper_ptr->msp / 30)))
 346                 {
 347                         sniper_ptr->csp -= (1 + (sniper_ptr->msp / 30));
 348                         sniper_ptr->redraw |= (PR_MANA);
 349                         mult = mult * 5 / 2;
 350                 }
 351                 break;
 352         }
 353         }
 354
 355         /* Sniper */
 356         if (snipe_type) mult = calc_snipe_damage_with_slay(sniper_ptr, mult, m_ptr, snipe_type);
 357
 358         /* Return the total damage */
 359         return (tdam * mult / 10);
 360 }
 361
 362
 363 /*!
 364  * @brief 射撃処理実行 /
 365  * Fire an object from the pack or floor.
 366  * @param item 射撃するオブジェクトの所持ID
 367  * @param j_ptr 射撃武器のオブジェクト参照ポインタ
 368  * @return なし
 369  * @details
 370  * <pre>
 371  * You may only fire items that "match" your missile launcher.
 372  * You must use slings + pebbles/shots, bows + arrows, xbows + bolts.
 373  * See "calc_bonuses()" for more calculations and such.
 374  * Note that "firing" a missile is MUCH better than "throwing" it.
 375  * Note: "unseen" monsters are very hard to hit.
 376  * Objects are more likely to break if they "attempt" to hit a monster.
 377  * Rangers (with Bows) and Anyone (with "Extra Shots") get extra shots.
 378  * The "extra shot" code works by decreasing the amount of energy
 379  * required to make each shot, spreading the shots out over time.
 380  * Note that when firing missiles, the launcher multiplier is applied
 381  * after all the bonuses are added in, making multipliers very useful.
 382  * Note that Bows of "Extra Might" get extra range and an extra bonus
 383  * for the damage multiplier.
 384  * Note that Bows of "Extra Shots" give an extra shot.
 385  * </pre>
 386  */
 387 void exe_fire(player_type *shooter_ptr, INVENTORY_IDX item, object_type *j_ptr, SPELL_IDX snipe_type)
 388 {
 389         DIRECTION dir;
 390         int i;
 391         POSITION y, x, ny, nx, ty, tx, prev_y, prev_x;
 392         int tdam_base, tdis, thits, tmul;
 393         int bonus, chance;
 394         int cur_dis, visible;
 395         PERCENTAGE j;
 396
 397         object_type forge;
 398         object_type *q_ptr;
 399
 400         object_type *o_ptr;
 401
 402         bool hit_body = FALSE;
 403
 404         GAME_TEXT o_name[MAX_NLEN];
 405
 406         u16b path_g[512];       /* For calcuration of path length */
 407
 408         int msec = delay_factor * delay_factor * delay_factor;
 409
 410         /* STICK TO */
 411         bool stick_to = FALSE;
 412
 413         /* Access the item (if in the pack) */
 414         if (item >= 0)
 415         {
 416                 o_ptr = &shooter_ptr->inventory_list[item];
 417         }
 418         else
 419         {
 420                 o_ptr = &shooter_ptr->current_floor_ptr->o_list[0 - item];
 421         }
 422
 423         /* Sniper - Cannot shot a single arrow twice */
 424         if ((snipe_type == SP_DOUBLE) && (o_ptr->number < 2)) snipe_type = SP_NONE;
 425
 426         object_desc(shooter_ptr, o_name, o_ptr, OD_OMIT_PREFIX);
 427
 428         /* Use the proper number of shots */
 429         thits = shooter_ptr->num_fire;
 430
 431         /* Use a base distance */
 432         tdis = 10;
 433
 434         /* Base damage from thrown object plus launcher bonus */
 435         tdam_base = damroll(o_ptr->dd, o_ptr->ds) + o_ptr->to_d + j_ptr->to_d;
 436
 437         /* Actually "fire" the object */
 438         bonus = (shooter_ptr->to_h_b + o_ptr->to_h + j_ptr->to_h);
 439         if ((j_ptr->sval == SV_LIGHT_XBOW) || (j_ptr->sval == SV_HEAVY_XBOW))
 440                 chance = (shooter_ptr->skill_thb + (shooter_ptr->weapon_exp[0][j_ptr->sval] / 400 + bonus) * BTH_PLUS_ADJ);
 441         else
 442                 chance = (shooter_ptr->skill_thb + ((shooter_ptr->weapon_exp[0][j_ptr->sval] - (WEAPON_EXP_MASTER / 2)) / 200 + bonus) * BTH_PLUS_ADJ);
 443
 444         shooter_ptr->energy_use = bow_energy(j_ptr->sval);
 445         tmul = bow_tmul(j_ptr->sval);
 446
 447         /* Get extra "power" from "extra might" */
 448         if (shooter_ptr->xtra_might) tmul++;
 449
 450         tmul = tmul * (100 + (int)(adj_str_td[shooter_ptr->stat_ind[A_STR]]) - 128);
 451
 452         /* Boost the damage */
 453         tdam_base *= tmul;
 454         tdam_base /= 100;
 455
 456         /* Base range */
 457         tdis = 13 + tmul / 80;
 458         if ((j_ptr->sval == SV_LIGHT_XBOW) || (j_ptr->sval == SV_HEAVY_XBOW))
 459         {
 460                 if (shooter_ptr->concent)
 461                         tdis -= (5 - (shooter_ptr->concent + 1) / 2);
 462                 else
 463                         tdis -= 5;
 464         }
 465
 466         project_length = tdis + 1;
 467
 468         /* Get a direction (or cancel) */
 469         if (!get_aim_dir(shooter_ptr, &dir))
 470         {
 471                 free_turn(shooter_ptr);
 472
 473                 if (snipe_type == SP_AWAY) snipe_type = SP_NONE;
 474
 475                 /* need not to reset project_length (already did)*/
 476
 477                 return;
 478         }
 479
 480         /* Predict the "target" location */
 481         tx = shooter_ptr->x + 99 * ddx[dir];
 482         ty = shooter_ptr->y + 99 * ddy[dir];
 483
 484         /* Check for "target request" */
 485         if ((dir == 5) && target_okay(shooter_ptr))
 486         {
 487                 tx = target_col;
 488                 ty = target_row;
 489         }
 490
 491         /* Get projection path length */
 492         tdis = project_path(shooter_ptr, path_g, project_length, shooter_ptr->y, shooter_ptr->x, ty, tx, PROJECT_PATH | PROJECT_THRU) - 1;
 493
 494         project_length = 0; /* reset to default */
 495
 496         /* Don't shoot at my feet */
 497         if (tx == shooter_ptr->x && ty == shooter_ptr->y)
 498         {
 499                 free_turn(shooter_ptr);
 500
 501                 /* project_length is already reset to 0 */
 502
 503                 return;
 504         }
 505
 506
 507         /* Take a (partial) turn */
 508         shooter_ptr->energy_use = (shooter_ptr->energy_use / thits);
 509         shooter_ptr->is_fired = TRUE;
 510
 511         /* Sniper - Difficult to shot twice at 1 turn */
 512         if (snipe_type == SP_DOUBLE)  shooter_ptr->concent = (shooter_ptr->concent + 1) / 2;
 513
 514         /* Sniper - Repeat shooting when double shots */
 515         for (i = 0; i < ((snipe_type == SP_DOUBLE) ? 2 : 1); i++)
 516         {
 517
 518                 /* Start at the player */
 519                 y = shooter_ptr->y;
 520                 x = shooter_ptr->x;
 521                 q_ptr = &forge;
 522                 object_copy(q_ptr, o_ptr);
 523
 524                 /* Single object */
 525                 q_ptr->number = 1;
 526
 527                 vary_item(shooter_ptr, item, -1);
 528
 529                 sound(SOUND_SHOOT);
 530                 handle_stuff(shooter_ptr);
 531
 532                 prev_y = y;
 533                 prev_x = x;
 534
 535                 /* The shot does not hit yet */
 536                 hit_body = FALSE;
 537
 538                 /* Travel until stopped */
 539                 for (cur_dis = 0; cur_dis <= tdis; )
 540                 {
 541                         grid_type *g_ptr;
 542
 543                         /* Hack -- Stop at the target */
 544                         if ((y == ty) && (x == tx)) break;
 545
 546                         /* Calculate the new location (see "project()") */
 547                         ny = y;
 548                         nx = x;
 549                         mmove2(&ny, &nx, shooter_ptr->y, shooter_ptr->x, ty, tx);
 550
 551                         /* Shatter Arrow */
 552                         if (snipe_type == SP_KILL_WALL)
 553                         {
 554                                 g_ptr = &shooter_ptr->current_floor_ptr->grid_array[ny][nx];
 555
 556                                 if (cave_have_flag_grid(g_ptr, FF_HURT_ROCK) && !g_ptr->m_idx)
 557                                 {
 558                                         if (g_ptr->info & (CAVE_MARK)) msg_print(_("岩が砕け散った。", "Wall rocks were shattered."));
 559                                         /* Forget the wall */
 560                                         g_ptr->info &= ~(CAVE_MARK);
 561                                         shooter_ptr->update |= (PU_VIEW | PU_LITE | PU_FLOW | PU_MON_LITE);
 562
 563                                         /* Destroy the wall */
 564                                         cave_alter_feat(shooter_ptr, ny, nx, FF_HURT_ROCK);
 565
 566                                         hit_body = TRUE;
 567                                         break;
 568                                 }
 569                         }
 570
 571                         /* Stopped by walls/doors */
 572                         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;
 573
 574                         /* Advance the distance */
 575                         cur_dis++;
 576
 577                         /* Sniper */
 578                         if (snipe_type == SP_LITE)
 579                         {
 580                                 shooter_ptr->current_floor_ptr->grid_array[ny][nx].info |= (CAVE_GLOW);
 581                                 note_spot(shooter_ptr, ny, nx);
 582                                 lite_spot(shooter_ptr, ny, nx);
 583                         }
 584
 585                         /* The player can see the (on screen) missile */
 586                         if (panel_contains(ny, nx) && player_can_see_bold(shooter_ptr, ny, nx))
 587                         {
 588                                 SYMBOL_CODE c = object_char(q_ptr);
 589                                 byte a = object_attr(q_ptr);
 590
 591                                 /* Draw, Hilite, Fresh, Pause, Erase */
 592                                 print_rel(shooter_ptr, c, a, ny, nx);
 593                                 move_cursor_relative(ny, nx);
 594                                 Term_fresh();
 595                                 Term_xtra(TERM_XTRA_DELAY, msec);
 596                                 lite_spot(shooter_ptr, ny, nx);
 597                                 Term_fresh();
 598                         }
 599
 600                         /* The player cannot see the missile */
 601                         else
 602                         {
 603                                 /* Pause anyway, for consistancy */
 604                                 Term_xtra(TERM_XTRA_DELAY, msec);
 605                         }
 606
 607                         /* Sniper */
 608                         if (snipe_type == SP_KILL_TRAP)
 609                         {
 610                                 project(shooter_ptr, 0, 0, ny, nx, 0, GF_KILL_TRAP,
 611                                         (PROJECT_JUMP | PROJECT_HIDE | PROJECT_GRID | PROJECT_ITEM), -1);
 612                         }
 613
 614                         /* Sniper */
 615                         if (snipe_type == SP_EVILNESS)
 616                         {
 617                                 shooter_ptr->current_floor_ptr->grid_array[ny][nx].info &= ~(CAVE_GLOW | CAVE_MARK);
 618                                 note_spot(shooter_ptr, ny, nx);
 619                                 lite_spot(shooter_ptr, ny, nx);
 620                         }
 621
 622                         prev_y = y;
 623                         prev_x = x;
 624
 625                         /* Save the new location */
 626                         x = nx;
 627                         y = ny;
 628
 629                         /* Monster here, Try to hit it */
 630                         if (shooter_ptr->current_floor_ptr->grid_array[y][x].m_idx)
 631                         {
 632                                 grid_type *c_mon_ptr = &shooter_ptr->current_floor_ptr->grid_array[y][x];
 633
 634                                 monster_type *m_ptr = &shooter_ptr->current_floor_ptr->m_list[c_mon_ptr->m_idx];
 635                                 monster_race *r_ptr = &r_info[m_ptr->r_idx];
 636
 637                                 /* Check the visibility */
 638                                 visible = m_ptr->ml;
 639
 640                                 /* Note the collision */
 641                                 hit_body = TRUE;
 642
 643                                 if (monster_csleep_remaining(m_ptr))
 644                                 {
 645                                         if (!(r_ptr->flags3 & RF3_EVIL) || one_in_(5)) chg_virtue(shooter_ptr, V_COMPASSION, -1);
 646                                         if (!(r_ptr->flags3 & RF3_EVIL) || one_in_(5)) chg_virtue(shooter_ptr, V_HONOUR, -1);
 647                                 }
 648
 649                                 if ((r_ptr->level + 10) > shooter_ptr->lev)
 650                                 {
 651                                         int now_exp = shooter_ptr->weapon_exp[0][j_ptr->sval];
 652                                         if (now_exp < s_info[shooter_ptr->pclass].w_max[0][j_ptr->sval])
 653                                         {
 654                                                 SUB_EXP amount = 0;
 655                                                 if (now_exp < WEAPON_EXP_BEGINNER) amount = 80;
 656                                                 else if (now_exp < WEAPON_EXP_SKILLED) amount = 25;
 657                                                 else if ((now_exp < WEAPON_EXP_EXPERT) && (shooter_ptr->lev > 19)) amount = 10;
 658                                                 else if (shooter_ptr->lev > 34) amount = 2;
 659                                                 shooter_ptr->weapon_exp[0][j_ptr->sval] += amount;
 660                                                 shooter_ptr->update |= (PU_BONUS);
 661                                         }
 662                                 }
 663
 664                                 if (shooter_ptr->riding)
 665                                 {
 666                                         if ((shooter_ptr->skill_exp[GINOU_RIDING] < s_info[shooter_ptr->pclass].s_max[GINOU_RIDING])
 667                                                 && ((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)
 668                                                 && one_in_(2))
 669                                         {
 670                                                 shooter_ptr->skill_exp[GINOU_RIDING] += 1;
 671                                                 shooter_ptr->update |= (PU_BONUS);
 672                                         }
 673                                 }
 674
 675                                 /* Did we hit it (penalize range) */
 676                                 if (test_hit_fire(shooter_ptr, chance - cur_dis, m_ptr, m_ptr->ml, o_name))
 677                                 {
 678                                         bool fear = FALSE;
 679                                         int tdam = tdam_base;
 680
 681                                         /* Get extra damage from concentration */
 682                                         if (shooter_ptr->concent) tdam = boost_concentration_damage(shooter_ptr, tdam);
 683
 684                                         /* Handle unseen monster */
 685                                         if (!visible)
 686                                         {
 687                                                 /* Invisible monster */
 688                                                 msg_format(_("%sが敵を捕捉した。", "The %s finds a mark."), o_name);
 689                                         }
 690
 691                                         /* Handle visible monster */
 692                                         else
 693                                         {
 694                                                 GAME_TEXT m_name[MAX_NLEN];
 695
 696                                                 /* Get "the monster" or "it" */
 697                                                 monster_desc(shooter_ptr, m_name, m_ptr, 0);
 698
 699                                                 msg_format(_("%sが%sに命中した。", "The %s hits %s."), o_name, m_name);
 700
 701                                                 if (m_ptr->ml)
 702                                                 {
 703                                                         if (!shooter_ptr->image) monster_race_track(shooter_ptr, m_ptr->ap_r_idx);
 704                                                         health_track(shooter_ptr, c_mon_ptr->m_idx);
 705                                                 }
 706                                         }
 707
 708                                         if (snipe_type == SP_NEEDLE)
 709                                         {
 710                                                 if ((randint1(randint1(r_ptr->level / (3 + shooter_ptr->concent)) + (8 - shooter_ptr->concent)) == 1)
 711                                                         && !(r_ptr->flags1 & RF1_UNIQUE) && !(r_ptr->flags7 & RF7_UNIQUE2))
 712                                                 {
 713                                                         GAME_TEXT m_name[MAX_NLEN];
 714
 715                                                         /* Get "the monster" or "it" */
 716                                                         monster_desc(shooter_ptr, m_name, m_ptr, 0);
 717
 718                                                         tdam = m_ptr->hp + 1;
 719                                                         msg_format(_("%sの急所に突き刺さった！", "Your shot hit a fatal spot of %s!"), m_name);
 720                                                 }
 721                                                 else tdam = 1;
 722                                         }
 723                                         else
 724                                         {
 725                                                 /* Apply special damage */
 726                                                 tdam = calc_shot_damage_with_slay(shooter_ptr, q_ptr, tdam, m_ptr, snipe_type);
 727                                                 tdam = critical_shot(shooter_ptr, q_ptr->weight, q_ptr->to_h, j_ptr->to_h, tdam);
 728
 729                                                 /* No negative damage */
 730                                                 if (tdam < 0) tdam = 0;
 731
 732                                                 /* Modify the damage */
 733                                                 tdam = mon_damage_mod(shooter_ptr, m_ptr, tdam, FALSE);
 734                                         }
 735
 736                                         msg_format_wizard(shooter_ptr, CHEAT_MONSTER,
 737                                                 _("%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))"),
 738                                                 tdam, m_ptr->hp - tdam, m_ptr->maxhp, m_ptr->max_maxhp);
 739
 740                                         /* Sniper */
 741                                         if (snipe_type == SP_EXPLODE)
 742                                         {
 743                                                 u16b flg = (PROJECT_STOP | PROJECT_JUMP | PROJECT_KILL | PROJECT_GRID);
 744
 745                                                 sound(SOUND_EXPLODE); /* No explode sound - use breath fire instead */
 746                                                 project(shooter_ptr, 0, ((shooter_ptr->concent + 1) / 2 + 1), ny, nx, tdam, GF_MISSILE, flg, -1);
 747                                                 break;
 748                                         }
 749
 750                                         /* Sniper */
 751                                         if (snipe_type == SP_HOLYNESS)
 752                                         {
 753                                                 shooter_ptr->current_floor_ptr->grid_array[ny][nx].info |= (CAVE_GLOW);
 754                                                 note_spot(shooter_ptr, ny, nx);
 755                                                 lite_spot(shooter_ptr, ny, nx);
 756                                         }
 757
 758                                         /* Hit the monster, check for death */
 759                                         if (mon_take_hit(shooter_ptr, c_mon_ptr->m_idx, tdam, &fear, extract_note_dies(real_r_idx(m_ptr))))
 760                                         {
 761                                                 /* Dead monster */
 762                                         }
 763
 764                                         /* No death */
 765                                         else
 766                                         {
 767                                                 /* STICK TO */
 768                                                 if (object_is_fixed_artifact(q_ptr) &&
 769                                                         (shooter_ptr->pclass != CLASS_SNIPER || shooter_ptr->concent == 0))
 770                                                 {
 771                                                         GAME_TEXT m_name[MAX_NLEN];
 772
 773                                                         monster_desc(shooter_ptr, m_name, m_ptr, 0);
 774
 775                                                         stick_to = TRUE;
 776                                                         msg_format(_("%sは%sに突き刺さった！", "%^s is stuck in %s!"), o_name, m_name);
 777                                                 }
 778
 779                                                 message_pain(shooter_ptr, c_mon_ptr->m_idx, tdam);
 780
 781                                                 /* Anger the monster */
 782                                                 if (tdam > 0) anger_monster(shooter_ptr, m_ptr);
 783
 784                                                 if (fear && m_ptr->ml)
 785                                                 {
 786                                                         GAME_TEXT m_name[MAX_NLEN];
 787                                                         sound(SOUND_FLEE);
 788                                                         monster_desc(shooter_ptr, m_name, m_ptr, 0);
 789                                                         msg_format(_("%^sは恐怖して逃げ出した！", "%^s flees in terror!"), m_name);
 790                                                 }
 791
 792                                                 set_target(m_ptr, shooter_ptr->y, shooter_ptr->x);
 793
 794                                                 /* Sniper */
 795                                                 if (snipe_type == SP_RUSH)
 796                                                 {
 797                                                         int n = randint1(5) + 3;
 798                                                         MONSTER_IDX m_idx = c_mon_ptr->m_idx;
 799
 800                                                         for (; cur_dis <= tdis; )
 801                                                         {
 802                                                                 POSITION ox = nx;
 803                                                                 POSITION oy = ny;
 804
 805                                                                 if (!n) break;
 806
 807                                                                 /* Calculate the new location (see "project()") */
 808                                                                 mmove2(&ny, &nx, shooter_ptr->y, shooter_ptr->x, ty, tx);
 809
 810                                                                 /* Stopped by wilderness boundary */
 811                                                                 if (!in_bounds2(shooter_ptr->current_floor_ptr, ny, nx)) break;
 812
 813                                                                 /* Stopped by walls/doors */
 814                                                                 if (!player_can_enter(shooter_ptr, shooter_ptr->current_floor_ptr->grid_array[ny][nx].feat, 0)) break;
 815
 816                                                                 /* Stopped by monsters */
 817                                                                 if (!is_cave_empty_bold(shooter_ptr, ny, nx)) break;
 818
 819                                                                 shooter_ptr->current_floor_ptr->grid_array[ny][nx].m_idx = m_idx;
 820                                                                 shooter_ptr->current_floor_ptr->grid_array[oy][ox].m_idx = 0;
 821
 822                                                                 m_ptr->fx = nx;
 823                                                                 m_ptr->fy = ny;
 824
 825                                                                 update_monster(shooter_ptr, c_mon_ptr->m_idx, TRUE);
 826
 827                                                                 lite_spot(shooter_ptr, ny, nx);
 828                                                                 lite_spot(shooter_ptr, oy, ox);
 829
 830                                                                 Term_fresh();
 831                                                                 Term_xtra(TERM_XTRA_DELAY, msec);
 832
 833                                                                 x = nx;
 834                                                                 y = ny;
 835                                                                 cur_dis++;
 836                                                                 n--;
 837                                                         }
 838                                                 }
 839                                         }
 840                                 }
 841
 842                                 /* Sniper */
 843                                 if (snipe_type == SP_PIERCE)
 844                                 {
 845                                         if (shooter_ptr->concent < 1) break;
 846                                         shooter_ptr->concent--;
 847                                         continue;
 848                                 }
 849
 850                                 /* Stop looking */
 851                                 break;
 852                         }
 853                 }
 854
 855                 /* Chance of breakage (during attacks) */
 856                 j = (hit_body ? breakage_chance(shooter_ptr, q_ptr, shooter_ptr->pclass == CLASS_ARCHER, snipe_type) : 0);
 857
 858                 if (stick_to)
 859                 {
 860                         MONSTER_IDX m_idx = shooter_ptr->current_floor_ptr->grid_array[y][x].m_idx;
 861                         monster_type *m_ptr = &shooter_ptr->current_floor_ptr->m_list[m_idx];
 862                         OBJECT_IDX o_idx = o_pop(shooter_ptr->current_floor_ptr);
 863
 864                         if (!o_idx)
 865                         {
 866                                 msg_format(_("%sはどこかへ行った。", "The %s went somewhere."), o_name);
 867                                 if (object_is_fixed_artifact(q_ptr))
 868                                 {
 869                                         a_info[j_ptr->name1].cur_num = 0;
 870                                 }
 871                                 return;
 872                         }
 873
 874                         o_ptr = &shooter_ptr->current_floor_ptr->o_list[o_idx];
 875                         object_copy(o_ptr, q_ptr);
 876
 877                         /* Forget mark */
 878                         o_ptr->marked &= OM_TOUCHED;
 879
 880                         /* Forget location */
 881                         o_ptr->iy = o_ptr->ix = 0;
 882
 883                         /* Memorize monster */
 884                         o_ptr->held_m_idx = m_idx;
 885
 886                         /* Build a stack */
 887                         o_ptr->next_o_idx = m_ptr->hold_o_idx;
 888
 889                         /* Carry object */
 890                         m_ptr->hold_o_idx = o_idx;
 891                 }
 892                 else if (cave_have_flag_bold(shooter_ptr->current_floor_ptr, y, x, FF_PROJECT))
 893                 {
 894                         /* Drop (or break) near that location */
 895                         (void)drop_near(shooter_ptr, q_ptr, j, y, x);
 896                 }
 897                 else
 898                 {
 899                         /* Drop (or break) near that location */
 900                         (void)drop_near(shooter_ptr, q_ptr, j, prev_y, prev_x);
 901                 }
 902
 903                 /* Sniper - Repeat shooting when double shots */
 904         }
 905
 906         /* Sniper - Loose his/her concentration after any shot */
 907         if (shooter_ptr->concent) reset_concentration(shooter_ptr, FALSE);
 908 }
 909
 910
 911 /*!
 912 * @brief プレイヤーからモンスターへの射撃命中判定 /
 913 * Determine if the player "hits" a monster (normal combat).
 914 * @param chance 基本命中値
 915 * @param m_ptr モンスターの構造体参照ポインタ
 916 * @param vis 目標を視界に捕らえているならばTRUEを指定
 917 * @param o_name メッセージ表示時のモンスター名
 918 * @return 命中と判定された場合TRUEを返す
 919 * @note Always miss 5%, always hit 5%, otherwise random.
 920 */
 921 bool test_hit_fire(player_type *shooter_ptr, int chance, monster_type *m_ptr, int vis, char* o_name)
 922 {
 923         int k;
 924         ARMOUR_CLASS ac;
 925         monster_race *r_ptr = &r_info[m_ptr->r_idx];
 926
 927         /* Percentile dice */
 928         k = randint1(100);
 929
 930         /* Snipers with high-concentration reduce instant miss percentage.*/
 931         k += shooter_ptr->concent;
 932
 933         /* Hack -- Instant miss or hit */
 934         if (k <= 5) return FALSE;
 935         if (k > 95) return TRUE;
 936
 937         if (shooter_ptr->pseikaku == PERSONALITY_LAZY)
 938                 if (one_in_(20)) return FALSE;
 939
 940         /* Never hit */
 941         if (chance <= 0) return FALSE;
 942
 943         ac = r_ptr->ac;
 944         if (shooter_ptr->concent)
 945         {
 946                 ac *= (8 - shooter_ptr->concent);
 947                 ac /= 8;
 948         }
 949
 950         if (m_ptr->r_idx == MON_GOEMON && !monster_csleep_remaining(m_ptr)) ac *= 3;
 951
 952         /* Invisible monsters are harder to hit */
 953         if (!vis) chance = (chance + 1) / 2;
 954
 955         /* Power competes against armor */
 956         if (randint0(chance) < (ac * 3 / 4))
 957         {
 958                 if (m_ptr->r_idx == MON_GOEMON && !monster_csleep_remaining(m_ptr))
 959                 {
 960                         GAME_TEXT m_name[MAX_NLEN];
 961                         monster_desc(shooter_ptr, m_name, m_ptr, 0);
 962                         msg_format(_("%sは%sを斬り捨てた！", "%s cuts down %s!"), m_name, o_name);
 963                 }
 964                 return FALSE;
 965         }
 966
 967         /* Assume hit */
 968         return TRUE;
 969 }
 970
 971
 972
 973
 974 /*!
 975 * @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 /
 976 * Critical hits (from objects thrown by player) Factor in item weight, total plusses, and player level.
 977 * @param weight 矢弾の重量
 978 * @param plus_ammo 矢弾の命中修正
 979 * @param plus_bow 弓の命中修正
 980 * @param dam 現在算出中のダメージ値
 981 * @return クリティカル修正が入ったダメージ値
 982 */
 983 HIT_POINT critical_shot(player_type *shooter_ptr, WEIGHT weight, int plus_ammo, int plus_bow, HIT_POINT dam)
 984 {
 985         int i, k;
 986         object_type *j_ptr = &shooter_ptr->inventory_list[INVEN_BOW];
 987
 988         /* Extract "shot" power */
 989         i = shooter_ptr->to_h_b + plus_ammo;
 990
 991         if (shooter_ptr->tval_ammo == TV_BOLT)
 992                 i = (shooter_ptr->skill_thb + (shooter_ptr->weapon_exp[0][j_ptr->sval] / 400 + i) * BTH_PLUS_ADJ);
 993         else
 994                 i = (shooter_ptr->skill_thb + ((shooter_ptr->weapon_exp[0][j_ptr->sval] - (WEAPON_EXP_MASTER / 2)) / 200 + i) * BTH_PLUS_ADJ);
 995
 996
 997         /* Snipers can shot more critically with crossbows */
 998         if (shooter_ptr->concent) i += ((i * shooter_ptr->concent) / 5);
 999         if ((shooter_ptr->pclass == CLASS_SNIPER) && (shooter_ptr->tval_ammo == TV_BOLT)) i *= 2;
1000
1001         /* Good bow makes more critical */
1002         i += plus_bow * 8 * (shooter_ptr->concent ? shooter_ptr->concent + 5 : 5);
1003
1004         /* Critical hit */
1005         if (randint1(10000) <= i)
1006         {
1007                 k = weight * randint1(500);
1008
1009                 if (k < 900)
1010                 {
1011                         msg_print(_("手ごたえがあった！", "It was a good hit!"));
1012                         dam += (dam / 2);
1013                 }
1014                 else if (k < 1350)
1015                 {
1016                         msg_print(_("かなりの手ごたえがあった！", "It was a great hit!"));
1017                         dam *= 2;
1018                 }
1019                 else
1020                 {
1021                         msg_print(_("会心の一撃だ！", "It was a superb hit!"));
1022                         dam *= 3;
1023                 }
1024         }
1025
1026         return (dam);
1027 }
1028
1029
1030
1031
1032 /*!
1033  * @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
1034  * @param sval 射撃武器のアイテム副分類ID
1035  * @return 消費する基本エネルギー
1036  */
1037 ENERGY bow_energy(OBJECT_SUBTYPE_VALUE sval)
1038 {
1039         ENERGY energy = 10000;
1040
1041         /* Analyze the launcher */
1042         switch (sval)
1043         {
1044                 /* Sling and ammo */
1045         case SV_SLING:
1046         {
1047                 energy = 8000;
1048                 break;
1049         }
1050
1051         /* Short Bow and Arrow */
1052         case SV_SHORT_BOW:
1053         {
1054                 energy = 10000;
1055                 break;
1056         }
1057
1058         /* Long Bow and Arrow */
1059         case SV_LONG_BOW:
1060         {
1061                 energy = 10000;
1062                 break;
1063         }
1064
1065         /* Bow of irresponsiblity and Arrow */
1066         case SV_NAMAKE_BOW:
1067         {
1068                 energy = 7777;
1069                 break;
1070         }
1071
1072         /* Light Crossbow and Bolt */
1073         case SV_LIGHT_XBOW:
1074         {
1075                 energy = 12000;
1076                 break;
1077         }
1078
1079         /* Heavy Crossbow and Bolt */
1080         case SV_HEAVY_XBOW:
1081         {
1082                 energy = 13333;
1083                 break;
1084         }
1085         }
1086
1087         return (energy);
1088 }
1089
1090
1091 /*
1092  * Return bow tmul
1093  */
1094 int bow_tmul(OBJECT_SUBTYPE_VALUE sval)
1095 {
1096         int tmul = 0;
1097
1098         /* Analyze the launcher */
1099         switch (sval)
1100         {
1101                 /* Sling and ammo */
1102         case SV_SLING:
1103         {
1104                 tmul = 2;
1105                 break;
1106         }
1107
1108         /* Short Bow and Arrow */
1109         case SV_SHORT_BOW:
1110         {
1111                 tmul = 2;
1112                 break;
1113         }
1114
1115         /* Long Bow and Arrow */
1116         case SV_LONG_BOW:
1117         {
1118                 tmul = 3;
1119                 break;
1120         }
1121
1122         /* Bow of irresponsiblity and Arrow */
1123         case SV_NAMAKE_BOW:
1124         {
1125                 tmul = 3;
1126                 break;
1127         }
1128
1129         /* Light Crossbow and Bolt */
1130         case SV_LIGHT_XBOW:
1131         {
1132                 tmul = 3;
1133                 break;
1134         }
1135
1136         /* Heavy Crossbow and Bolt */
1137         case SV_HEAVY_XBOW:
1138         {
1139                 tmul = 4;
1140                 break;
1141         }
1142         }
1143
1144         return (tmul);
1145 }
1146
1147
1148 /*!
1149  * @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
1150  * @param shooter_ptr 射撃を行うクリーチャー参照ポインタ
1151  * @param plus_ammo 矢弾のダメージ修正
1152  * @param plus_bow 弓のダメージ修正
1153  * @return ダメージ期待値
1154  * @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。
1155  */
1156 HIT_POINT calc_crit_ratio_shot(player_type* shooter_ptr, HIT_POINT plus_ammo, HIT_POINT plus_bow)
1157 {
1158         HIT_POINT i;
1159         object_type *j_ptr = &shooter_ptr->inventory_list[INVEN_BOW];
1160
1161         /* Extract "shot" power */
1162         i = shooter_ptr->to_h_b + plus_ammo;
1163
1164         if (shooter_ptr->tval_ammo == TV_BOLT)
1165                 i = (shooter_ptr->skill_thb + (shooter_ptr->weapon_exp[0][j_ptr->sval] / 400 + i) * BTH_PLUS_ADJ);
1166         else
1167                 i = (shooter_ptr->skill_thb + ((shooter_ptr->weapon_exp[0][j_ptr->sval] - (WEAPON_EXP_MASTER / 2)) / 200 + i) * BTH_PLUS_ADJ);
1168
1169         /* Snipers can shot more critically with crossbows */
1170         if (shooter_ptr->concent) i += ((i * shooter_ptr->concent) / 5);
1171         if ((shooter_ptr->pclass == CLASS_SNIPER) && (shooter_ptr->tval_ammo == TV_BOLT)) i *= 2;
1172
1173         /* Good bow makes more critical */
1174         i += plus_bow * 8 * (shooter_ptr->concent ? shooter_ptr->concent + 5 : 5);
1175
1176         if (i < 0) i = 0;
1177
1178         return i;
1179 }
1180
1181 /*!
1182  * @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
1183  * @param weight 武器の重量
1184  * @param plus_ammo 矢弾のダメージ修正
1185  * @param plus_bow 弓のダメージ修正
1186  * @param dam 基本ダメージ量
1187  * @return ダメージ期待値
1188  */
1189 HIT_POINT calc_expect_crit_shot(player_type *shooter_ptr, WEIGHT weight, int plus_ammo, int plus_bow, HIT_POINT dam)
1190 {
1191         u32b num;
1192         int i, k, crit;
1193         i = calc_crit_ratio_shot(shooter_ptr, plus_ammo, plus_bow);
1194
1195         k = 0;
1196         num = 0;
1197
1198         crit = MIN(500, 900 / weight);
1199         num += dam * 3 / 2 * crit;
1200         k = crit;
1201
1202         crit = MIN(500, 1350 / weight);
1203         crit -= k;
1204         num += dam * 2 * crit;
1205         k += crit;
1206
1207         if (k < 500)
1208         {
1209                 crit = 500 - k;
1210                 num += dam * 3 * crit;
1211         }
1212
1213         num /= 500;
1214
1215         num *= i;
1216         num += (10000 - i) * dam;
1217         num /= 10000;
1218
1219         return num;
1220 }
1221
1222 /*!
1223  * @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
1224  * @param shooter_ptr プレーヤーへの参照ポインタ
1225  * @param weight 武器の重量
1226  * @param plus 武器のダメージ修正
1227  * @param dam 基本ダメージ
1228  * @param meichuu 命中値
1229  * @param dokubari 毒針処理か否か
1230  * @return ダメージ期待値
1231  */
1232 HIT_POINT calc_expect_crit(player_type *shooter_ptr, WEIGHT weight, int plus, HIT_POINT dam, s16b meichuu, bool dokubari)
1233 {
1234         u32b k, num;
1235         if (dokubari) return dam;
1236
1237         int i = (weight + (meichuu * 3 + plus * 5) + shooter_ptr->skill_thn);
1238         if (i < 0) i = 0;
1239
1240         k = weight;
1241         num = 0;
1242
1243         if (k < 400)                                            num += (2 * dam + 5) * (400 - k);
1244         if (k < 700)                                            num += (2 * dam + 10) * (MIN(700, k + 650) - MAX(400, k));
1245         if (k > (700 - 650) && k < 900)         num += (3 * dam + 15) * (MIN(900, k + 650) - MAX(700, k));
1246         if (k > (900 - 650) && k < 1300)                num += (3 * dam + 20) * (MIN(1300, k + 650) - MAX(900, k));
1247         if (k > (1300 - 650))                                   num += (7 * dam / 2 + 25) * MIN(650, k - (1300 - 650));
1248
1249         num /= 650;
1250         if (shooter_ptr->pclass == CLASS_NINJA)
1251         {
1252                 num *= i;
1253                 num += (4444 - i) * dam;
1254                 num /= 4444;
1255         }
1256         else
1257         {
1258                 num *= i;
1259                 num += (5000 - i) * dam;
1260                 num /= 5000;
1261         }
1262
1263         return num;
1264 }
1265