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