src/combat/shoot.c

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