src/combat/shoot.c

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