src/combat/shoot.c

   1 #include "combat/shoot.h"
   2 #include "combat/snipe.h"
   3 #include "core/stuff-handler.h"
   4 #include "effect/effect-characteristics.h"
   5 #include "effect/spells-effect-util.h"
   6 #include "grid/grid.h"
   7 #include "inventory/inventory-object.h"
   8 #include "io/targeting.h"
   9 #include "main/sound-definitions-table.h"
  10 #include "monster/monster-status.h"
  11 #include "monster/monster.h"
  12 #include "mspell/monster-spell.h"
  13 #include "object/artifact.h"
  14 #include "object/object-broken.h"
  15 #include "object/object-flavor.h"
  16 #include "object/object-hook.h"
  17 #include "object/object-kind.h"
  18 #include "object/object-mark-types.h"
  19 #include "object/object2.h"
  20 #include "object/sv-bow-types.h"
  21 #include "object/tr-types.h"
  22 #include "player/avatar.h"
  23 #include "player/player-class.h"
  24 #include "player/player-personalities-table.h"
  25 #include "player/player-skill.h"
  26 #include "player/player-status.h"
  27 #include "spell/process-effect.h"
  28 #include "term/gameterm.h"
  29 #include "util/util.h"
  30 #include "view/display-main-window.h"
  31 #include "world/world-object.h"
  32
  33 /*!
  34  * @brief 矢弾を射撃した際のスレイ倍率をかけた結果を返す /
  35  * Determines the odds of an object breaking when thrown at a monster
  36  * @param o_ptr 矢弾のオブジェクト構造体参照ポインタ
  37  * @param tdam 計算途中のダメージ量
  38  * @param m_ptr 目標モンスターの構造体参照ポインタ
  39  * @return スレイ倍率をかけたダメージ量
  40  */
  41 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)
  42 {
  43         MULTIPLY mult = 10;
  44
  45         monster_race *r_ptr = &r_info[m_ptr->r_idx];
  46
  47         BIT_FLAGS flgs[TR_FLAG_SIZE];
  48         object_flags(o_ptr, flgs);
  49
  50         /* Some "weapons" and "ammo" do extra damage */
  51         switch (o_ptr->tval)
  52         {
  53         case TV_SHOT:
  54         case TV_ARROW:
  55         case TV_BOLT:
  56         {
  57                 if ((have_flag(flgs, TR_SLAY_ANIMAL)) && (r_ptr->flags3 & RF3_ANIMAL))
  58                 {
  59                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
  60                         {
  61                                 r_ptr->r_flags3 |= RF3_ANIMAL;
  62                         }
  63                         if (mult < 17) mult = 17;
  64                 }
  65
  66                 if ((have_flag(flgs, TR_KILL_ANIMAL)) && (r_ptr->flags3 & RF3_ANIMAL))
  67                 {
  68                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
  69                         {
  70                                 r_ptr->r_flags3 |= RF3_ANIMAL;
  71                         }
  72                         if (mult < 27) mult = 27;
  73                 }
  74
  75                 if ((have_flag(flgs, TR_SLAY_EVIL)) && (r_ptr->flags3 & RF3_EVIL))
  76                 {
  77                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
  78                         {
  79                                 r_ptr->r_flags3 |= RF3_EVIL;
  80                         }
  81                         if (mult < 15) mult = 15;
  82                 }
  83
  84                 if ((have_flag(flgs, TR_KILL_EVIL)) && (r_ptr->flags3 & RF3_EVIL))
  85                 {
  86                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
  87                         {
  88                                 r_ptr->r_flags3 |= RF3_EVIL;
  89                         }
  90                         if (mult < 25) mult = 25;
  91                 }
  92
  93                 if ((have_flag(flgs, TR_SLAY_HUMAN)) && (r_ptr->flags2 & RF2_HUMAN))
  94                 {
  95                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
  96                         {
  97                                 r_ptr->r_flags2 |= RF2_HUMAN;
  98                         }
  99                         if (mult < 17) mult = 17;
 100                 }
 101
 102                 if ((have_flag(flgs, TR_KILL_HUMAN)) && (r_ptr->flags2 & RF2_HUMAN))
 103                 {
 104                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 105                         {
 106                                 r_ptr->r_flags2 |= RF2_HUMAN;
 107                         }
 108                         if (mult < 27) mult = 27;
 109                 }
 110
 111                 if ((have_flag(flgs, TR_SLAY_UNDEAD)) && (r_ptr->flags3 & RF3_UNDEAD))
 112                 {
 113                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 114                         {
 115                                 r_ptr->r_flags3 |= RF3_UNDEAD;
 116                         }
 117                         if (mult < 20) mult = 20;
 118                 }
 119
 120                 if ((have_flag(flgs, TR_KILL_UNDEAD)) && (r_ptr->flags3 & RF3_UNDEAD))
 121                 {
 122                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 123                         {
 124                                 r_ptr->r_flags3 |= RF3_UNDEAD;
 125                         }
 126                         if (mult < 30) mult = 30;
 127                 }
 128
 129                 if ((have_flag(flgs, TR_SLAY_DEMON)) && (r_ptr->flags3 & RF3_DEMON))
 130                 {
 131                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 132                         {
 133                                 r_ptr->r_flags3 |= RF3_DEMON;
 134                         }
 135                         if (mult < 20) mult = 20;
 136                 }
 137
 138                 if ((have_flag(flgs, TR_KILL_DEMON)) && (r_ptr->flags3 & RF3_DEMON))
 139                 {
 140                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 141                         {
 142                                 r_ptr->r_flags3 |= RF3_DEMON;
 143                         }
 144                         if (mult < 30) mult = 30;
 145                 }
 146
 147                 if ((have_flag(flgs, TR_SLAY_ORC)) && (r_ptr->flags3 & RF3_ORC))
 148                 {
 149                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 150                         {
 151                                 r_ptr->r_flags3 |= RF3_ORC;
 152                         }
 153                         if (mult < 20) mult = 20;
 154                 }
 155
 156                 if ((have_flag(flgs, TR_KILL_ORC)) && (r_ptr->flags3 & RF3_ORC))
 157                 {
 158                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 159                         {
 160                                 r_ptr->r_flags3 |= RF3_ORC;
 161                         }
 162                         if (mult < 30) mult = 30;
 163                 }
 164
 165                 if ((have_flag(flgs, TR_SLAY_TROLL)) && (r_ptr->flags3 & RF3_TROLL))
 166                 {
 167                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 168                         {
 169                                 r_ptr->r_flags3 |= RF3_TROLL;
 170                         }
 171
 172                         if (mult < 20) mult = 20;
 173                 }
 174
 175                 if ((have_flag(flgs, TR_KILL_TROLL)) && (r_ptr->flags3 & RF3_TROLL))
 176                 {
 177                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 178                         {
 179                                 r_ptr->r_flags3 |= RF3_TROLL;
 180                         }
 181                         if (mult < 30) mult = 30;
 182                 }
 183
 184                 if ((have_flag(flgs, TR_SLAY_GIANT)) && (r_ptr->flags3 & RF3_GIANT))
 185                 {
 186                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 187                         {
 188                                 r_ptr->r_flags3 |= RF3_GIANT;
 189                         }
 190                         if (mult < 20) mult = 20;
 191                 }
 192
 193                 if ((have_flag(flgs, TR_KILL_GIANT)) && (r_ptr->flags3 & RF3_GIANT))
 194                 {
 195                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 196                         {
 197                                 r_ptr->r_flags3 |= RF3_GIANT;
 198                         }
 199                         if (mult < 30) mult = 30;
 200                 }
 201
 202                 if ((have_flag(flgs, TR_SLAY_DRAGON)) && (r_ptr->flags3 & RF3_DRAGON))
 203                 {
 204                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 205                         {
 206                                 r_ptr->r_flags3 |= RF3_DRAGON;
 207                         }
 208                         if (mult < 20) mult = 20;
 209                 }
 210
 211                 if ((have_flag(flgs, TR_KILL_DRAGON)) && (r_ptr->flags3 & RF3_DRAGON))
 212                 {
 213                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 214                         {
 215                                 r_ptr->r_flags3 |= RF3_DRAGON;
 216                         }
 217                         if (mult < 30) mult = 30;
 218                         if ((o_ptr->name1 == ART_BARD_ARROW) && (m_ptr->r_idx == MON_SMAUG) &&
 219                                 (sniper_ptr->inventory_list[INVEN_BOW].name1 == ART_BARD))
 220                                 mult *= 5;
 221                 }
 222
 223                 if (have_flag(flgs, TR_BRAND_ACID))
 224                 {
 225                         /* Notice immunity */
 226                         if (r_ptr->flagsr & RFR_EFF_IM_ACID_MASK)
 227                         {
 228                                 if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 229                                 {
 230                                         r_ptr->r_flagsr |= (r_ptr->flagsr & RFR_EFF_IM_ACID_MASK);
 231                                 }
 232                         }
 233                         else
 234                         {
 235                                 if (mult < 17) mult = 17;
 236                         }
 237                 }
 238
 239                 if (have_flag(flgs, TR_BRAND_ELEC))
 240                 {
 241                         /* Notice immunity */
 242                         if (r_ptr->flagsr & RFR_EFF_IM_ELEC_MASK)
 243                         {
 244                                 if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 245                                 {
 246                                         r_ptr->r_flagsr |= (r_ptr->flagsr & RFR_EFF_IM_ELEC_MASK);
 247                                 }
 248                         }
 249                         else
 250                         {
 251                                 if (mult < 17) mult = 17;
 252                         }
 253                 }
 254
 255                 if (have_flag(flgs, TR_BRAND_FIRE))
 256                 {
 257                         /* Notice immunity */
 258                         if (r_ptr->flagsr & RFR_EFF_IM_FIRE_MASK)
 259                         {
 260                                 if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 261                                 {
 262                                         r_ptr->r_flagsr |= (r_ptr->flagsr & RFR_EFF_IM_FIRE_MASK);
 263                                 }
 264                         }
 265                         /* Otherwise, take the damage */
 266                         else
 267                         {
 268                                 if (r_ptr->flags3 & RF3_HURT_FIRE)
 269                                 {
 270                                         if (mult < 25) mult = 25;
 271                                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 272                                         {
 273                                                 r_ptr->r_flags3 |= RF3_HURT_FIRE;
 274                                         }
 275                                 }
 276                                 else if (mult < 17) mult = 17;
 277                         }
 278                 }
 279
 280                 if (have_flag(flgs, TR_BRAND_COLD))
 281                 {
 282                         /* Notice immunity */
 283                         if (r_ptr->flagsr & RFR_EFF_IM_COLD_MASK)
 284                         {
 285                                 if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 286                                 {
 287                                         r_ptr->r_flagsr |= (r_ptr->flagsr & RFR_EFF_IM_COLD_MASK);
 288                                 }
 289                         }
 290                         /* Otherwise, take the damage */
 291                         else
 292                         {
 293                                 if (r_ptr->flags3 & RF3_HURT_COLD)
 294                                 {
 295                                         if (mult < 25) mult = 25;
 296                                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 297                                         {
 298                                                 r_ptr->r_flags3 |= RF3_HURT_COLD;
 299                                         }
 300                                 }
 301                                 else if (mult < 17) mult = 17;
 302                         }
 303                 }
 304
 305                 if (have_flag(flgs, TR_BRAND_POIS))
 306                 {
 307                         /* Notice immunity */
 308                         if (r_ptr->flagsr & RFR_EFF_IM_POIS_MASK)
 309                         {
 310                                 if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 311                                 {
 312                                         r_ptr->r_flagsr |= (r_ptr->flagsr & RFR_EFF_IM_POIS_MASK);
 313                                 }
 314                         }
 315                         /* Otherwise, take the damage */
 316                         else
 317                         {
 318                                 if (mult < 17) mult = 17;
 319                         }
 320                 }
 321
 322                 if ((have_flag(flgs, TR_FORCE_WEAPON)) && (sniper_ptr->csp > (sniper_ptr->msp / 30)))
 323                 {
 324                         sniper_ptr->csp -= (1 + (sniper_ptr->msp / 30));
 325                         sniper_ptr->redraw |= (PR_MANA);
 326                         mult = mult * 5 / 2;
 327                 }
 328                 break;
 329         }
 330         }
 331
 332         /* Sniper */
 333         if (snipe_type) mult = calc_snipe_damage_with_slay(sniper_ptr, mult, m_ptr, snipe_type);
 334
 335         /* Return the total damage */
 336         return (tdam * mult / 10);
 337 }
 338
 339
 340 /*!
 341  * @brief 射撃処理実行 /
 342  * Fire an object from the pack or floor.
 343  * @param item 射撃するオブジェクトの所持ID
 344  * @param j_ptr 射撃武器のオブジェクト参照ポインタ
 345  * @return なし
 346  * @details
 347  * <pre>
 348  * You may only fire items that "match" your missile launcher.
 349  * You must use slings + pebbles/shots, bows + arrows, xbows + bolts.
 350  * See "calc_bonuses()" for more calculations and such.
 351  * Note that "firing" a missile is MUCH better than "throwing" it.
 352  * Note: "unseen" monsters are very hard to hit.
 353  * Objects are more likely to break if they "attempt" to hit a monster.
 354  * Rangers (with Bows) and Anyone (with "Extra Shots") get extra shots.
 355  * The "extra shot" code works by decreasing the amount of energy
 356  * required to make each shot, spreading the shots out over time.
 357  * Note that when firing missiles, the launcher multiplier is applied
 358  * after all the bonuses are added in, making multipliers very useful.
 359  * Note that Bows of "Extra Might" get extra range and an extra bonus
 360  * for the damage multiplier.
 361  * Note that Bows of "Extra Shots" give an extra shot.
 362  * </pre>
 363  */
 364 void exe_fire(player_type *shooter_ptr, INVENTORY_IDX item, object_type *j_ptr, SPELL_IDX snipe_type)
 365 {
 366         DIRECTION dir;
 367         int i;
 368         POSITION y, x, ny, nx, ty, tx, prev_y, prev_x;
 369         int tdam_base, tdis, thits, tmul;
 370         int bonus, chance;
 371         int cur_dis, visible;
 372         PERCENTAGE j;
 373
 374         object_type forge;
 375         object_type *q_ptr;
 376
 377         object_type *o_ptr;
 378
 379         bool hit_body = FALSE;
 380
 381         GAME_TEXT o_name[MAX_NLEN];
 382
 383         u16b path_g[512];       /* For calcuration of path length */
 384
 385         int msec = delay_factor * delay_factor * delay_factor;
 386
 387         /* STICK TO */
 388         bool stick_to = FALSE;
 389
 390         /* Access the item (if in the pack) */
 391         if (item >= 0)
 392         {
 393                 o_ptr = &shooter_ptr->inventory_list[item];
 394         }
 395         else
 396         {
 397                 o_ptr = &shooter_ptr->current_floor_ptr->o_list[0 - item];
 398         }
 399
 400         /* Sniper - Cannot shot a single arrow twice */
 401         if ((snipe_type == SP_DOUBLE) && (o_ptr->number < 2)) snipe_type = SP_NONE;
 402
 403         object_desc(shooter_ptr, o_name, o_ptr, OD_OMIT_PREFIX);
 404
 405         /* Use the proper number of shots */
 406         thits = shooter_ptr->num_fire;
 407
 408         /* Use a base distance */
 409         tdis = 10;
 410
 411         /* Base damage from thrown object plus launcher bonus */
 412         tdam_base = damroll(o_ptr->dd, o_ptr->ds) + o_ptr->to_d + j_ptr->to_d;
 413
 414         /* Actually "fire" the object */
 415         bonus = (shooter_ptr->to_h_b + o_ptr->to_h + j_ptr->to_h);
 416         if ((j_ptr->sval == SV_LIGHT_XBOW) || (j_ptr->sval == SV_HEAVY_XBOW))
 417                 chance = (shooter_ptr->skill_thb + (shooter_ptr->weapon_exp[0][j_ptr->sval] / 400 + bonus) * BTH_PLUS_ADJ);
 418         else
 419                 chance = (shooter_ptr->skill_thb + ((shooter_ptr->weapon_exp[0][j_ptr->sval] - (WEAPON_EXP_MASTER / 2)) / 200 + bonus) * BTH_PLUS_ADJ);
 420
 421         shooter_ptr->energy_use = bow_energy(j_ptr->sval);
 422         tmul = bow_tmul(j_ptr->sval);
 423
 424         /* Get extra "power" from "extra might" */
 425         if (shooter_ptr->xtra_might) tmul++;
 426
 427         tmul = tmul * (100 + (int)(adj_str_td[shooter_ptr->stat_ind[A_STR]]) - 128);
 428
 429         /* Boost the damage */
 430         tdam_base *= tmul;
 431         tdam_base /= 100;
 432
 433         /* Base range */
 434         tdis = 13 + tmul / 80;
 435         if ((j_ptr->sval == SV_LIGHT_XBOW) || (j_ptr->sval == SV_HEAVY_XBOW))
 436         {
 437                 if (shooter_ptr->concent)
 438                         tdis -= (5 - (shooter_ptr->concent + 1) / 2);
 439                 else
 440                         tdis -= 5;
 441         }
 442
 443         project_length = tdis + 1;
 444
 445         /* Get a direction (or cancel) */
 446         if (!get_aim_dir(shooter_ptr, &dir))
 447         {
 448                 free_turn(shooter_ptr);
 449
 450                 if (snipe_type == SP_AWAY) snipe_type = SP_NONE;
 451
 452                 /* need not to reset project_length (already did)*/
 453
 454                 return;
 455         }
 456
 457         /* Predict the "target" location */
 458         tx = shooter_ptr->x + 99 * ddx[dir];
 459         ty = shooter_ptr->y + 99 * ddy[dir];
 460
 461         /* Check for "target request" */
 462         if ((dir == 5) && target_okay(shooter_ptr))
 463         {
 464                 tx = target_col;
 465                 ty = target_row;
 466         }
 467
 468         /* Get projection path length */
 469         tdis = project_path(shooter_ptr, path_g, project_length, shooter_ptr->y, shooter_ptr->x, ty, tx, PROJECT_PATH | PROJECT_THRU) - 1;
 470
 471         project_length = 0; /* reset to default */
 472
 473         /* Don't shoot at my feet */
 474         if (tx == shooter_ptr->x && ty == shooter_ptr->y)
 475         {
 476                 free_turn(shooter_ptr);
 477
 478                 /* project_length is already reset to 0 */
 479
 480                 return;
 481         }
 482
 483
 484         /* Take a (partial) turn */
 485         shooter_ptr->energy_use = (shooter_ptr->energy_use / thits);
 486         shooter_ptr->is_fired = TRUE;
 487
 488         /* Sniper - Difficult to shot twice at 1 turn */
 489         if (snipe_type == SP_DOUBLE)  shooter_ptr->concent = (shooter_ptr->concent + 1) / 2;
 490
 491         /* Sniper - Repeat shooting when double shots */
 492         for (i = 0; i < ((snipe_type == SP_DOUBLE) ? 2 : 1); i++)
 493         {
 494
 495                 /* Start at the player */
 496                 y = shooter_ptr->y;
 497                 x = shooter_ptr->x;
 498                 q_ptr = &forge;
 499                 object_copy(q_ptr, o_ptr);
 500
 501                 /* Single object */
 502                 q_ptr->number = 1;
 503
 504                 vary_item(shooter_ptr, item, -1);
 505
 506                 sound(SOUND_SHOOT);
 507                 handle_stuff(shooter_ptr);
 508
 509                 prev_y = y;
 510                 prev_x = x;
 511
 512                 /* The shot does not hit yet */
 513                 hit_body = FALSE;
 514
 515                 /* Travel until stopped */
 516                 for (cur_dis = 0; cur_dis <= tdis; )
 517                 {
 518                         grid_type *g_ptr;
 519
 520                         /* Hack -- Stop at the target */
 521                         if ((y == ty) && (x == tx)) break;
 522
 523                         /* Calculate the new location (see "project()") */
 524                         ny = y;
 525                         nx = x;
 526                         mmove2(&ny, &nx, shooter_ptr->y, shooter_ptr->x, ty, tx);
 527
 528                         /* Shatter Arrow */
 529                         if (snipe_type == SP_KILL_WALL)
 530                         {
 531                                 g_ptr = &shooter_ptr->current_floor_ptr->grid_array[ny][nx];
 532
 533                                 if (cave_have_flag_grid(g_ptr, FF_HURT_ROCK) && !g_ptr->m_idx)
 534                                 {
 535                                         if (g_ptr->info & (CAVE_MARK)) msg_print(_("岩が砕け散った。", "Wall rocks were shattered."));
 536                                         /* Forget the wall */
 537                                         g_ptr->info &= ~(CAVE_MARK);
 538                                         shooter_ptr->update |= (PU_VIEW | PU_LITE | PU_FLOW | PU_MON_LITE);
 539
 540                                         /* Destroy the wall */
 541                                         cave_alter_feat(shooter_ptr, ny, nx, FF_HURT_ROCK);
 542
 543                                         hit_body = TRUE;
 544                                         break;
 545                                 }
 546                         }
 547
 548                         /* Stopped by walls/doors */
 549                         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;
 550
 551                         /* Advance the distance */
 552                         cur_dis++;
 553
 554                         /* Sniper */
 555                         if (snipe_type == SP_LITE)
 556                         {
 557                                 shooter_ptr->current_floor_ptr->grid_array[ny][nx].info |= (CAVE_GLOW);
 558                                 note_spot(shooter_ptr, ny, nx);
 559                                 lite_spot(shooter_ptr, ny, nx);
 560                         }
 561
 562                         /* The player can see the (on screen) missile */
 563                         if (panel_contains(ny, nx) && player_can_see_bold(shooter_ptr, ny, nx))
 564                         {
 565                                 char c = object_char(q_ptr);
 566                                 byte a = object_attr(q_ptr);
 567
 568                                 /* Draw, Hilite, Fresh, Pause, Erase */
 569                                 print_rel(shooter_ptr, c, a, ny, nx);
 570                                 move_cursor_relative(ny, nx);
 571                                 Term_fresh();
 572                                 Term_xtra(TERM_XTRA_DELAY, msec);
 573                                 lite_spot(shooter_ptr, ny, nx);
 574                                 Term_fresh();
 575                         }
 576
 577                         /* The player cannot see the missile */
 578                         else
 579                         {
 580                                 /* Pause anyway, for consistancy */
 581                                 Term_xtra(TERM_XTRA_DELAY, msec);
 582                         }
 583
 584                         /* Sniper */
 585                         if (snipe_type == SP_KILL_TRAP)
 586                         {
 587                                 project(shooter_ptr, 0, 0, ny, nx, 0, GF_KILL_TRAP,
 588                                         (PROJECT_JUMP | PROJECT_HIDE | PROJECT_GRID | PROJECT_ITEM), -1);
 589                         }
 590
 591                         /* Sniper */
 592                         if (snipe_type == SP_EVILNESS)
 593                         {
 594                                 shooter_ptr->current_floor_ptr->grid_array[ny][nx].info &= ~(CAVE_GLOW | CAVE_MARK);
 595                                 note_spot(shooter_ptr, ny, nx);
 596                                 lite_spot(shooter_ptr, ny, nx);
 597                         }
 598
 599                         prev_y = y;
 600                         prev_x = x;
 601
 602                         /* Save the new location */
 603                         x = nx;
 604                         y = ny;
 605
 606                         /* Monster here, Try to hit it */
 607                         if (shooter_ptr->current_floor_ptr->grid_array[y][x].m_idx)
 608                         {
 609                                 grid_type *c_mon_ptr = &shooter_ptr->current_floor_ptr->grid_array[y][x];
 610
 611                                 monster_type *m_ptr = &shooter_ptr->current_floor_ptr->m_list[c_mon_ptr->m_idx];
 612                                 monster_race *r_ptr = &r_info[m_ptr->r_idx];
 613
 614                                 /* Check the visibility */
 615                                 visible = m_ptr->ml;
 616
 617                                 /* Note the collision */
 618                                 hit_body = TRUE;
 619
 620                                 if (MON_CSLEEP(m_ptr))
 621                                 {
 622                                         if (!(r_ptr->flags3 & RF3_EVIL) || one_in_(5)) chg_virtue(shooter_ptr, V_COMPASSION, -1);
 623                                         if (!(r_ptr->flags3 & RF3_EVIL) || one_in_(5)) chg_virtue(shooter_ptr, V_HONOUR, -1);
 624                                 }
 625
 626                                 if ((r_ptr->level + 10) > shooter_ptr->lev)
 627                                 {
 628                                         int now_exp = shooter_ptr->weapon_exp[0][j_ptr->sval];
 629                                         if (now_exp < s_info[shooter_ptr->pclass].w_max[0][j_ptr->sval])
 630                                         {
 631                                                 SUB_EXP amount = 0;
 632                                                 if (now_exp < WEAPON_EXP_BEGINNER) amount = 80;
 633                                                 else if (now_exp < WEAPON_EXP_SKILLED) amount = 25;
 634                                                 else if ((now_exp < WEAPON_EXP_EXPERT) && (shooter_ptr->lev > 19)) amount = 10;
 635                                                 else if (shooter_ptr->lev > 34) amount = 2;
 636                                                 shooter_ptr->weapon_exp[0][j_ptr->sval] += amount;
 637                                                 shooter_ptr->update |= (PU_BONUS);
 638                                         }
 639                                 }
 640
 641                                 if (shooter_ptr->riding)
 642                                 {
 643                                         if ((shooter_ptr->skill_exp[GINOU_RIDING] < s_info[shooter_ptr->pclass].s_max[GINOU_RIDING])
 644                                                 && ((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)
 645                                                 && one_in_(2))
 646                                         {
 647                                                 shooter_ptr->skill_exp[GINOU_RIDING] += 1;
 648                                                 shooter_ptr->update |= (PU_BONUS);
 649                                         }
 650                                 }
 651
 652                                 /* Did we hit it (penalize range) */
 653                                 if (test_hit_fire(shooter_ptr, chance - cur_dis, m_ptr, m_ptr->ml, o_name))
 654                                 {
 655                                         bool fear = FALSE;
 656                                         int tdam = tdam_base;
 657
 658                                         /* Get extra damage from concentration */
 659                                         if (shooter_ptr->concent) tdam = boost_concentration_damage(shooter_ptr, tdam);
 660
 661                                         /* Handle unseen monster */
 662                                         if (!visible)
 663                                         {
 664                                                 /* Invisible monster */
 665                                                 msg_format(_("%sが敵を捕捉した。", "The %s finds a mark."), o_name);
 666                                         }
 667
 668                                         /* Handle visible monster */
 669                                         else
 670                                         {
 671                                                 GAME_TEXT m_name[MAX_NLEN];
 672
 673                                                 /* Get "the monster" or "it" */
 674                                                 monster_desc(shooter_ptr, m_name, m_ptr, 0);
 675
 676                                                 msg_format(_("%sが%sに命中した。", "The %s hits %s."), o_name, m_name);
 677
 678                                                 if (m_ptr->ml)
 679                                                 {
 680                                                         if (!shooter_ptr->image) monster_race_track(shooter_ptr, m_ptr->ap_r_idx);
 681                                                         health_track(shooter_ptr, c_mon_ptr->m_idx);
 682                                                 }
 683                                         }
 684
 685                                         if (snipe_type == SP_NEEDLE)
 686                                         {
 687                                                 if ((randint1(randint1(r_ptr->level / (3 + shooter_ptr->concent)) + (8 - shooter_ptr->concent)) == 1)
 688                                                         && !(r_ptr->flags1 & RF1_UNIQUE) && !(r_ptr->flags7 & RF7_UNIQUE2))
 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                                                         tdam = m_ptr->hp + 1;
 696                                                         msg_format(_("%sの急所に突き刺さった！", "Your shot hit a fatal spot of %s!"), m_name);
 697                                                 }
 698                                                 else tdam = 1;
 699                                         }
 700                                         else
 701                                         {
 702                                                 /* Apply special damage */
 703                                                 tdam = calc_shot_damage_with_slay(shooter_ptr, q_ptr, tdam, m_ptr, snipe_type);
 704                                                 tdam = critical_shot(shooter_ptr, q_ptr->weight, q_ptr->to_h, j_ptr->to_h, tdam);
 705
 706                                                 /* No negative damage */
 707                                                 if (tdam < 0) tdam = 0;
 708
 709                                                 /* Modify the damage */
 710                                                 tdam = mon_damage_mod(shooter_ptr, m_ptr, tdam, FALSE);
 711                                         }
 712
 713                                         msg_format_wizard(CHEAT_MONSTER,
 714                                                 _("%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))"),
 715                                                 tdam, m_ptr->hp - tdam, m_ptr->maxhp, m_ptr->max_maxhp);
 716
 717                                         /* Sniper */
 718                                         if (snipe_type == SP_EXPLODE)
 719                                         {
 720                                                 u16b flg = (PROJECT_STOP | PROJECT_JUMP | PROJECT_KILL | PROJECT_GRID);
 721
 722                                                 sound(SOUND_EXPLODE); /* No explode sound - use breath fire instead */
 723                                                 project(shooter_ptr, 0, ((shooter_ptr->concent + 1) / 2 + 1), ny, nx, tdam, GF_MISSILE, flg, -1);
 724                                                 break;
 725                                         }
 726
 727                                         /* Sniper */
 728                                         if (snipe_type == SP_HOLYNESS)
 729                                         {
 730                                                 shooter_ptr->current_floor_ptr->grid_array[ny][nx].info |= (CAVE_GLOW);
 731                                                 note_spot(shooter_ptr, ny, nx);
 732                                                 lite_spot(shooter_ptr, ny, nx);
 733                                         }
 734
 735                                         /* Hit the monster, check for death */
 736                                         if (mon_take_hit(shooter_ptr, c_mon_ptr->m_idx, tdam, &fear, extract_note_dies(real_r_idx(m_ptr))))
 737                                         {
 738                                                 /* Dead monster */
 739                                         }
 740
 741                                         /* No death */
 742                                         else
 743                                         {
 744                                                 /* STICK TO */
 745                                                 if (object_is_fixed_artifact(q_ptr) &&
 746                                                         (shooter_ptr->pclass != CLASS_SNIPER || shooter_ptr->concent == 0))
 747                                                 {
 748                                                         GAME_TEXT m_name[MAX_NLEN];
 749
 750                                                         monster_desc(shooter_ptr, m_name, m_ptr, 0);
 751
 752                                                         stick_to = TRUE;
 753                                                         msg_format(_("%sは%sに突き刺さった！", "%^s is stuck in %s!"), o_name, m_name);
 754                                                 }
 755
 756                                                 message_pain(shooter_ptr, c_mon_ptr->m_idx, tdam);
 757
 758                                                 /* Anger the monster */
 759                                                 if (tdam > 0) anger_monster(shooter_ptr, m_ptr);
 760
 761                                                 if (fear && m_ptr->ml)
 762                                                 {
 763                                                         GAME_TEXT m_name[MAX_NLEN];
 764                                                         sound(SOUND_FLEE);
 765                                                         monster_desc(shooter_ptr, m_name, m_ptr, 0);
 766                                                         msg_format(_("%^sは恐怖して逃げ出した！", "%^s flees in terror!"), m_name);
 767                                                 }
 768
 769                                                 set_target(m_ptr, shooter_ptr->y, shooter_ptr->x);
 770
 771                                                 /* Sniper */
 772                                                 if (snipe_type == SP_RUSH)
 773                                                 {
 774                                                         int n = randint1(5) + 3;
 775                                                         MONSTER_IDX m_idx = c_mon_ptr->m_idx;
 776
 777                                                         for (; cur_dis <= tdis; )
 778                                                         {
 779                                                                 POSITION ox = nx;
 780                                                                 POSITION oy = ny;
 781
 782                                                                 if (!n) break;
 783
 784                                                                 /* Calculate the new location (see "project()") */
 785                                                                 mmove2(&ny, &nx, shooter_ptr->y, shooter_ptr->x, ty, tx);
 786
 787                                                                 /* Stopped by wilderness boundary */
 788                                                                 if (!in_bounds2(shooter_ptr->current_floor_ptr, ny, nx)) break;
 789
 790                                                                 /* Stopped by walls/doors */
 791                                                                 if (!player_can_enter(shooter_ptr, shooter_ptr->current_floor_ptr->grid_array[ny][nx].feat, 0)) break;
 792
 793                                                                 /* Stopped by monsters */
 794                                                                 if (!is_cave_empty_bold(shooter_ptr, ny, nx)) break;
 795
 796                                                                 shooter_ptr->current_floor_ptr->grid_array[ny][nx].m_idx = m_idx;
 797                                                                 shooter_ptr->current_floor_ptr->grid_array[oy][ox].m_idx = 0;
 798
 799                                                                 m_ptr->fx = nx;
 800                                                                 m_ptr->fy = ny;
 801
 802                                                                 update_monster(shooter_ptr, c_mon_ptr->m_idx, TRUE);
 803
 804                                                                 lite_spot(shooter_ptr, ny, nx);
 805                                                                 lite_spot(shooter_ptr, oy, ox);
 806
 807                                                                 Term_fresh();
 808                                                                 Term_xtra(TERM_XTRA_DELAY, msec);
 809
 810                                                                 x = nx;
 811                                                                 y = ny;
 812                                                                 cur_dis++;
 813                                                                 n--;
 814                                                         }
 815                                                 }
 816                                         }
 817                                 }
 818
 819                                 /* Sniper */
 820                                 if (snipe_type == SP_PIERCE)
 821                                 {
 822                                         if (shooter_ptr->concent < 1) break;
 823                                         shooter_ptr->concent--;
 824                                         continue;
 825                                 }
 826
 827                                 /* Stop looking */
 828                                 break;
 829                         }
 830                 }
 831
 832                 /* Chance of breakage (during attacks) */
 833                 j = (hit_body ? breakage_chance(shooter_ptr, q_ptr, shooter_ptr->pclass == CLASS_ARCHER, snipe_type) : 0);
 834
 835                 if (stick_to)
 836                 {
 837                         MONSTER_IDX m_idx = shooter_ptr->current_floor_ptr->grid_array[y][x].m_idx;
 838                         monster_type *m_ptr = &shooter_ptr->current_floor_ptr->m_list[m_idx];
 839                         OBJECT_IDX o_idx = o_pop(shooter_ptr->current_floor_ptr);
 840
 841                         if (!o_idx)
 842                         {
 843                                 msg_format(_("%sはどこかへ行った。", "The %s went somewhere."), o_name);
 844                                 if (object_is_fixed_artifact(q_ptr))
 845                                 {
 846                                         a_info[j_ptr->name1].cur_num = 0;
 847                                 }
 848                                 return;
 849                         }
 850
 851                         o_ptr = &shooter_ptr->current_floor_ptr->o_list[o_idx];
 852                         object_copy(o_ptr, q_ptr);
 853
 854                         /* Forget mark */
 855                         o_ptr->marked &= OM_TOUCHED;
 856
 857                         /* Forget location */
 858                         o_ptr->iy = o_ptr->ix = 0;
 859
 860                         /* Memorize monster */
 861                         o_ptr->held_m_idx = m_idx;
 862
 863                         /* Build a stack */
 864                         o_ptr->next_o_idx = m_ptr->hold_o_idx;
 865
 866                         /* Carry object */
 867                         m_ptr->hold_o_idx = o_idx;
 868                 }
 869                 else if (cave_have_flag_bold(shooter_ptr->current_floor_ptr, y, x, FF_PROJECT))
 870                 {
 871                         /* Drop (or break) near that location */
 872                         (void)drop_near(shooter_ptr, q_ptr, j, y, x);
 873                 }
 874                 else
 875                 {
 876                         /* Drop (or break) near that location */
 877                         (void)drop_near(shooter_ptr, q_ptr, j, prev_y, prev_x);
 878                 }
 879
 880                 /* Sniper - Repeat shooting when double shots */
 881         }
 882
 883         /* Sniper - Loose his/her concentration after any shot */
 884         if (shooter_ptr->concent) reset_concentration(shooter_ptr, FALSE);
 885 }
 886
 887
 888 /*!
 889 * @brief プレイヤーからモンスターへの射撃命中判定 /
 890 * Determine if the player "hits" a monster (normal combat).
 891 * @param chance 基本命中値
 892 * @param m_ptr モンスターの構造体参照ポインタ
 893 * @param vis 目標を視界に捕らえているならばTRUEを指定
 894 * @param o_name メッセージ表示時のモンスター名
 895 * @return 命中と判定された場合TRUEを返す
 896 * @note Always miss 5%, always hit 5%, otherwise random.
 897 */
 898 bool test_hit_fire(player_type *shooter_ptr, int chance, monster_type *m_ptr, int vis, char* o_name)
 899 {
 900         int k;
 901         ARMOUR_CLASS ac;
 902         monster_race *r_ptr = &r_info[m_ptr->r_idx];
 903
 904         /* Percentile dice */
 905         k = randint1(100);
 906
 907         /* Snipers with high-concentration reduce instant miss percentage.*/
 908         k += shooter_ptr->concent;
 909
 910         /* Hack -- Instant miss or hit */
 911         if (k <= 5) return FALSE;
 912         if (k > 95) return TRUE;
 913
 914         if (shooter_ptr->pseikaku == PERSONALITY_LAZY)
 915                 if (one_in_(20)) return FALSE;
 916
 917         /* Never hit */
 918         if (chance <= 0) return FALSE;
 919
 920         ac = r_ptr->ac;
 921         if (shooter_ptr->concent)
 922         {
 923                 ac *= (8 - shooter_ptr->concent);
 924                 ac /= 8;
 925         }
 926
 927         if (m_ptr->r_idx == MON_GOEMON && !MON_CSLEEP(m_ptr)) ac *= 3;
 928
 929         /* Invisible monsters are harder to hit */
 930         if (!vis) chance = (chance + 1) / 2;
 931
 932         /* Power competes against armor */
 933         if (randint0(chance) < (ac * 3 / 4))
 934         {
 935                 if (m_ptr->r_idx == MON_GOEMON && !MON_CSLEEP(m_ptr))
 936                 {
 937                         GAME_TEXT m_name[MAX_NLEN];
 938                         monster_desc(shooter_ptr, m_name, m_ptr, 0);
 939                         msg_format(_("%sは%sを斬り捨てた！", "%s cuts down %s!"), m_name, o_name);
 940                 }
 941                 return FALSE;
 942         }
 943
 944         /* Assume hit */
 945         return TRUE;
 946 }
 947
 948
 949
 950
 951 /*!
 952 * @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 /
 953 * Critical hits (from objects thrown by player) Factor in item weight, total plusses, and player level.
 954 * @param weight 矢弾の重量
 955 * @param plus_ammo 矢弾の命中修正
 956 * @param plus_bow 弓の命中修正
 957 * @param dam 現在算出中のダメージ値
 958 * @return クリティカル修正が入ったダメージ値
 959 */
 960 HIT_POINT critical_shot(player_type *shooter_ptr, WEIGHT weight, int plus_ammo, int plus_bow, HIT_POINT dam)
 961 {
 962         int i, k;
 963         object_type *j_ptr = &shooter_ptr->inventory_list[INVEN_BOW];
 964
 965         /* Extract "shot" power */
 966         i = shooter_ptr->to_h_b + plus_ammo;
 967
 968         if (shooter_ptr->tval_ammo == TV_BOLT)
 969                 i = (shooter_ptr->skill_thb + (shooter_ptr->weapon_exp[0][j_ptr->sval] / 400 + i) * BTH_PLUS_ADJ);
 970         else
 971                 i = (shooter_ptr->skill_thb + ((shooter_ptr->weapon_exp[0][j_ptr->sval] - (WEAPON_EXP_MASTER / 2)) / 200 + i) * BTH_PLUS_ADJ);
 972
 973
 974         /* Snipers can shot more critically with crossbows */
 975         if (shooter_ptr->concent) i += ((i * shooter_ptr->concent) / 5);
 976         if ((shooter_ptr->pclass == CLASS_SNIPER) && (shooter_ptr->tval_ammo == TV_BOLT)) i *= 2;
 977
 978         /* Good bow makes more critical */
 979         i += plus_bow * 8 * (shooter_ptr->concent ? shooter_ptr->concent + 5 : 5);
 980
 981         /* Critical hit */
 982         if (randint1(10000) <= i)
 983         {
 984                 k = weight * randint1(500);
 985
 986                 if (k < 900)
 987                 {
 988                         msg_print(_("手ごたえがあった！", "It was a good hit!"));
 989                         dam += (dam / 2);
 990                 }
 991                 else if (k < 1350)
 992                 {
 993                         msg_print(_("かなりの手ごたえがあった！", "It was a great hit!"));
 994                         dam *= 2;
 995                 }
 996                 else
 997                 {
 998                         msg_print(_("会心の一撃だ！", "It was a superb hit!"));
 999                         dam *= 3;
1000                 }
1001         }
1002
1003         return (dam);
1004 }
1005
1006
1007
1008
1009 /*!
1010  * @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
1011  * @param sval 射撃武器のアイテム副分類ID
1012  * @return 消費する基本エネルギー
1013  */
1014 ENERGY bow_energy(OBJECT_SUBTYPE_VALUE sval)
1015 {
1016         ENERGY energy = 10000;
1017
1018         /* Analyze the launcher */
1019         switch (sval)
1020         {
1021                 /* Sling and ammo */
1022         case SV_SLING:
1023         {
1024                 energy = 8000;
1025                 break;
1026         }
1027
1028         /* Short Bow and Arrow */
1029         case SV_SHORT_BOW:
1030         {
1031                 energy = 10000;
1032                 break;
1033         }
1034
1035         /* Long Bow and Arrow */
1036         case SV_LONG_BOW:
1037         {
1038                 energy = 10000;
1039                 break;
1040         }
1041
1042         /* Bow of irresponsiblity and Arrow */
1043         case SV_NAMAKE_BOW:
1044         {
1045                 energy = 7777;
1046                 break;
1047         }
1048
1049         /* Light Crossbow and Bolt */
1050         case SV_LIGHT_XBOW:
1051         {
1052                 energy = 12000;
1053                 break;
1054         }
1055
1056         /* Heavy Crossbow and Bolt */
1057         case SV_HEAVY_XBOW:
1058         {
1059                 energy = 13333;
1060                 break;
1061         }
1062         }
1063
1064         return (energy);
1065 }
1066
1067
1068 /*
1069  * Return bow tmul
1070  */
1071 int bow_tmul(OBJECT_SUBTYPE_VALUE sval)
1072 {
1073         int tmul = 0;
1074
1075         /* Analyze the launcher */
1076         switch (sval)
1077         {
1078                 /* Sling and ammo */
1079         case SV_SLING:
1080         {
1081                 tmul = 2;
1082                 break;
1083         }
1084
1085         /* Short Bow and Arrow */
1086         case SV_SHORT_BOW:
1087         {
1088                 tmul = 2;
1089                 break;
1090         }
1091
1092         /* Long Bow and Arrow */
1093         case SV_LONG_BOW:
1094         {
1095                 tmul = 3;
1096                 break;
1097         }
1098
1099         /* Bow of irresponsiblity and Arrow */
1100         case SV_NAMAKE_BOW:
1101         {
1102                 tmul = 3;
1103                 break;
1104         }
1105
1106         /* Light Crossbow and Bolt */
1107         case SV_LIGHT_XBOW:
1108         {
1109                 tmul = 3;
1110                 break;
1111         }
1112
1113         /* Heavy Crossbow and Bolt */
1114         case SV_HEAVY_XBOW:
1115         {
1116                 tmul = 4;
1117                 break;
1118         }
1119         }
1120
1121         return (tmul);
1122 }
1123
1124
1125 /*!
1126  * @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
1127  * @param shooter_ptr 射撃を行うクリーチャー参照ポインタ
1128  * @param plus_ammo 矢弾のダメージ修正
1129  * @param plus_bow 弓のダメージ修正
1130  * @return ダメージ期待値
1131  * @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。
1132  */
1133 HIT_POINT calc_crit_ratio_shot(player_type* shooter_ptr, HIT_POINT plus_ammo, HIT_POINT plus_bow)
1134 {
1135         HIT_POINT i;
1136         object_type *j_ptr = &shooter_ptr->inventory_list[INVEN_BOW];
1137
1138         /* Extract "shot" power */
1139         i = shooter_ptr->to_h_b + plus_ammo;
1140
1141         if (shooter_ptr->tval_ammo == TV_BOLT)
1142                 i = (shooter_ptr->skill_thb + (shooter_ptr->weapon_exp[0][j_ptr->sval] / 400 + i) * BTH_PLUS_ADJ);
1143         else
1144                 i = (shooter_ptr->skill_thb + ((shooter_ptr->weapon_exp[0][j_ptr->sval] - (WEAPON_EXP_MASTER / 2)) / 200 + i) * BTH_PLUS_ADJ);
1145
1146         /* Snipers can shot more critically with crossbows */
1147         if (shooter_ptr->concent) i += ((i * shooter_ptr->concent) / 5);
1148         if ((shooter_ptr->pclass == CLASS_SNIPER) && (shooter_ptr->tval_ammo == TV_BOLT)) i *= 2;
1149
1150         /* Good bow makes more critical */
1151         i += plus_bow * 8 * (shooter_ptr->concent ? shooter_ptr->concent + 5 : 5);
1152
1153         if (i < 0) i = 0;
1154
1155         return i;
1156 }
1157
1158 /*!
1159  * @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
1160  * @param weight 武器の重量
1161  * @param plus_ammo 矢弾のダメージ修正
1162  * @param plus_bow 弓のダメージ修正
1163  * @param dam 基本ダメージ量
1164  * @return ダメージ期待値
1165  */
1166 HIT_POINT calc_expect_crit_shot(player_type *shooter_ptr, WEIGHT weight, int plus_ammo, int plus_bow, HIT_POINT dam)
1167 {
1168         u32b num;
1169         int i, k, crit;
1170         i = calc_crit_ratio_shot(shooter_ptr, plus_ammo, plus_bow);
1171
1172         k = 0;
1173         num = 0;
1174
1175         crit = MIN(500, 900 / weight);
1176         num += dam * 3 / 2 * crit;
1177         k = crit;
1178
1179         crit = MIN(500, 1350 / weight);
1180         crit -= k;
1181         num += dam * 2 * crit;
1182         k += crit;
1183
1184         if (k < 500)
1185         {
1186                 crit = 500 - k;
1187                 num += dam * 3 * crit;
1188         }
1189
1190         num /= 500;
1191
1192         num *= i;
1193         num += (10000 - i) * dam;
1194         num /= 10000;
1195
1196         return num;
1197 }
1198
1199 /*!
1200  * @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
1201  * @param shooter_ptr プレーヤーへの参照ポインタ
1202  * @param weight 武器の重量
1203  * @param plus 武器のダメージ修正
1204  * @param dam 基本ダメージ
1205  * @param meichuu 命中値
1206  * @param dokubari 毒針処理か否か
1207  * @return ダメージ期待値
1208  */
1209 HIT_POINT calc_expect_crit(player_type *shooter_ptr, WEIGHT weight, int plus, HIT_POINT dam, s16b meichuu, bool dokubari)
1210 {
1211         u32b k, num;
1212         if (dokubari) return dam;
1213
1214         int i = (weight + (meichuu * 3 + plus * 5) + shooter_ptr->skill_thn);
1215         if (i < 0) i = 0;
1216
1217         k = weight;
1218         num = 0;
1219
1220         if (k < 400)                                            num += (2 * dam + 5) * (400 - k);
1221         if (k < 700)                                            num += (2 * dam + 10) * (MIN(700, k + 650) - MAX(400, k));
1222         if (k > (700 - 650) && k < 900)         num += (3 * dam + 15) * (MIN(900, k + 650) - MAX(700, k));
1223         if (k > (900 - 650) && k < 1300)                num += (3 * dam + 20) * (MIN(1300, k + 650) - MAX(900, k));
1224         if (k > (1300 - 650))                                   num += (7 * dam / 2 + 25) * MIN(650, k - (1300 - 650));
1225
1226         num /= 650;
1227         if (shooter_ptr->pclass == CLASS_NINJA)
1228         {
1229                 num *= i;
1230                 num += (4444 - i) * dam;
1231                 num /= 4444;
1232         }
1233         else
1234         {
1235                 num *= i;
1236                 num += (5000 - i) * dam;
1237                 num /= 5000;
1238         }
1239
1240         return num;
1241 }
1242