src/combat/shoot.c

   1 #include "combat/shoot.h"
   2 #include "art-definition/art-bow-types.h"
   3 #include "core/player-redraw-types.h"
   4 #include "core/player-update-types.h"
   5 #include "core/stuff-handler.h"
   6 #include "effect/effect-characteristics.h"
   7 #include "effect/spells-effect-util.h"
   8 #include "floor/floor-object.h"
   9 #include "game-option/cheat-types.h"
  10 #include "game-option/special-options.h"
  11 #include "grid/feature.h"
  12 #include "grid/grid.h"
  13 #include "inventory/inventory-object.h"
  14 #include "inventory/inventory-slot-types.h"
  15 #include "io/cursor.h"
  16 #include "io/screen-util.h"
  17 #include "io/targeting.h"
  18 #include "main/sound-definitions-table.h"
  19 #include "main/sound-of-music.h"
  20 #include "mind/mind-sniper.h"
  21 #include "mind/snipe-types.h"
  22 #include "monster-floor/monster-death.h"
  23 #include "monster-floor/monster-move.h"
  24 #include "monster-race/monster-race.h"
  25 #include "monster-race/race-flags-resistance.h"
  26 #include "monster-race/race-flags1.h"
  27 #include "monster-race/race-flags2.h"
  28 #include "monster-race/race-flags3.h"
  29 #include "monster-race/race-flags7.h"
  30 #include "monster-race/race-indice-types.h"
  31 #include "monster/monster-describer.h"
  32 #include "monster/monster-info.h"
  33 #include "monster/monster-status.h"
  34 #include "monster/monster-update.h"
  35 #include "object-enchant/artifact.h"
  36 #include "object-enchant/tr-types.h"
  37 #include "object-hook/hook-enchant.h"
  38 #include "object/object-broken.h"
  39 #include "object/object-flags.h"
  40 #include "object/object-flavor.h"
  41 #include "object/object-generator.h"
  42 #include "object/object-info.h"
  43 #include "object/object-kind.h"
  44 #include "object/object-mark-types.h"
  45 #include "player/avatar.h"
  46 #include "player/player-class.h"
  47 #include "player/player-personalities-types.h"
  48 #include "player/player-skill.h"
  49 #include "player/player-status.h"
  50 #include "spell/process-effect.h"
  51 #include "spell/spell-types.h"
  52 #include "sv-definition/sv-bow-types.h"
  53 #include "util/bit-flags-calculator.h"
  54 #include "view/display-messages.h"
  55 #include "wizard/wizard-messages.h"
  56 #include "world/world-object.h"
  57
  58 /*!
  59  * @brief 矢弾を射撃した際のスレイ倍率をかけた結果を返す /
  60  * Determines the odds of an object breaking when thrown at a monster
  61  * @param o_ptr 矢弾のオブジェクト構造体参照ポインタ
  62  * @param tdam 計算途中のダメージ量
  63  * @param m_ptr 目標モンスターの構造体参照ポインタ
  64  * @return スレイ倍率をかけたダメージ量
  65  */
  66 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)
  67 {
  68         MULTIPLY mult = 10;
  69
  70         monster_race *r_ptr = &r_info[m_ptr->r_idx];
  71
  72         BIT_FLAGS flgs[TR_FLAG_SIZE];
  73         object_flags(sniper_ptr, o_ptr, flgs);
  74
  75         /* Some "weapons" and "ammo" do extra damage */
  76         switch (o_ptr->tval)
  77         {
  78         case TV_SHOT:
  79         case TV_ARROW:
  80         case TV_BOLT:
  81         {
  82                 if ((have_flag(flgs, TR_SLAY_ANIMAL)) && (r_ptr->flags3 & RF3_ANIMAL))
  83                 {
  84                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
  85                         {
  86                                 r_ptr->r_flags3 |= RF3_ANIMAL;
  87                         }
  88                         if (mult < 17) mult = 17;
  89                 }
  90
  91                 if ((have_flag(flgs, TR_KILL_ANIMAL)) && (r_ptr->flags3 & RF3_ANIMAL))
  92                 {
  93                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
  94                         {
  95                                 r_ptr->r_flags3 |= RF3_ANIMAL;
  96                         }
  97                         if (mult < 27) mult = 27;
  98                 }
  99
 100                 if ((have_flag(flgs, TR_SLAY_EVIL)) && (r_ptr->flags3 & RF3_EVIL))
 101                 {
 102                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 103                         {
 104                                 r_ptr->r_flags3 |= RF3_EVIL;
 105                         }
 106                         if (mult < 15) mult = 15;
 107                 }
 108
 109                 if ((have_flag(flgs, TR_KILL_EVIL)) && (r_ptr->flags3 & RF3_EVIL))
 110                 {
 111                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 112                         {
 113                                 r_ptr->r_flags3 |= RF3_EVIL;
 114                         }
 115                         if (mult < 25) mult = 25;
 116                 }
 117
 118                 if ((have_flag(flgs, TR_SLAY_HUMAN)) && (r_ptr->flags2 & RF2_HUMAN))
 119                 {
 120                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 121                         {
 122                                 r_ptr->r_flags2 |= RF2_HUMAN;
 123                         }
 124                         if (mult < 17) mult = 17;
 125                 }
 126
 127                 if ((have_flag(flgs, TR_KILL_HUMAN)) && (r_ptr->flags2 & RF2_HUMAN))
 128                 {
 129                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 130                         {
 131                                 r_ptr->r_flags2 |= RF2_HUMAN;
 132                         }
 133                         if (mult < 27) mult = 27;
 134                 }
 135
 136                 if ((have_flag(flgs, TR_SLAY_UNDEAD)) && (r_ptr->flags3 & RF3_UNDEAD))
 137                 {
 138                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 139                         {
 140                                 r_ptr->r_flags3 |= RF3_UNDEAD;
 141                         }
 142                         if (mult < 20) mult = 20;
 143                 }
 144
 145                 if ((have_flag(flgs, TR_KILL_UNDEAD)) && (r_ptr->flags3 & RF3_UNDEAD))
 146                 {
 147                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 148                         {
 149                                 r_ptr->r_flags3 |= RF3_UNDEAD;
 150                         }
 151                         if (mult < 30) mult = 30;
 152                 }
 153
 154                 if ((have_flag(flgs, TR_SLAY_DEMON)) && (r_ptr->flags3 & RF3_DEMON))
 155                 {
 156                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 157                         {
 158                                 r_ptr->r_flags3 |= RF3_DEMON;
 159                         }
 160                         if (mult < 20) mult = 20;
 161                 }
 162
 163                 if ((have_flag(flgs, TR_KILL_DEMON)) && (r_ptr->flags3 & RF3_DEMON))
 164                 {
 165                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 166                         {
 167                                 r_ptr->r_flags3 |= RF3_DEMON;
 168                         }
 169                         if (mult < 30) mult = 30;
 170                 }
 171
 172                 if ((have_flag(flgs, TR_SLAY_ORC)) && (r_ptr->flags3 & RF3_ORC))
 173                 {
 174                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 175                         {
 176                                 r_ptr->r_flags3 |= RF3_ORC;
 177                         }
 178                         if (mult < 20) mult = 20;
 179                 }
 180
 181                 if ((have_flag(flgs, TR_KILL_ORC)) && (r_ptr->flags3 & RF3_ORC))
 182                 {
 183                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 184                         {
 185                                 r_ptr->r_flags3 |= RF3_ORC;
 186                         }
 187                         if (mult < 30) mult = 30;
 188                 }
 189
 190                 if ((have_flag(flgs, TR_SLAY_TROLL)) && (r_ptr->flags3 & RF3_TROLL))
 191                 {
 192                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 193                         {
 194                                 r_ptr->r_flags3 |= RF3_TROLL;
 195                         }
 196
 197                         if (mult < 20) mult = 20;
 198                 }
 199
 200                 if ((have_flag(flgs, TR_KILL_TROLL)) && (r_ptr->flags3 & RF3_TROLL))
 201                 {
 202                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 203                         {
 204                                 r_ptr->r_flags3 |= RF3_TROLL;
 205                         }
 206                         if (mult < 30) mult = 30;
 207                 }
 208
 209                 if ((have_flag(flgs, TR_SLAY_GIANT)) && (r_ptr->flags3 & RF3_GIANT))
 210                 {
 211                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 212                         {
 213                                 r_ptr->r_flags3 |= RF3_GIANT;
 214                         }
 215                         if (mult < 20) mult = 20;
 216                 }
 217
 218                 if ((have_flag(flgs, TR_KILL_GIANT)) && (r_ptr->flags3 & RF3_GIANT))
 219                 {
 220                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 221                         {
 222                                 r_ptr->r_flags3 |= RF3_GIANT;
 223                         }
 224                         if (mult < 30) mult = 30;
 225                 }
 226
 227                 if ((have_flag(flgs, TR_SLAY_DRAGON)) && (r_ptr->flags3 & RF3_DRAGON))
 228                 {
 229                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 230                         {
 231                                 r_ptr->r_flags3 |= RF3_DRAGON;
 232                         }
 233                         if (mult < 20) mult = 20;
 234                 }
 235
 236                 if ((have_flag(flgs, TR_KILL_DRAGON)) && (r_ptr->flags3 & RF3_DRAGON))
 237                 {
 238                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 239                         {
 240                                 r_ptr->r_flags3 |= RF3_DRAGON;
 241                         }
 242                         if (mult < 30) mult = 30;
 243                         if ((o_ptr->name1 == ART_BARD_ARROW) && (m_ptr->r_idx == MON_SMAUG) &&
 244                                 (sniper_ptr->inventory_list[INVEN_BOW].name1 == ART_BARD))
 245                                 mult *= 5;
 246                 }
 247
 248                 if (have_flag(flgs, TR_BRAND_ACID))
 249                 {
 250                         /* Notice immunity */
 251                         if (r_ptr->flagsr & RFR_EFF_IM_ACID_MASK)
 252                         {
 253                                 if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 254                                 {
 255                                         r_ptr->r_flagsr |= (r_ptr->flagsr & RFR_EFF_IM_ACID_MASK);
 256                                 }
 257                         }
 258                         else
 259                         {
 260                                 if (mult < 17) mult = 17;
 261                         }
 262                 }
 263
 264                 if (have_flag(flgs, TR_BRAND_ELEC))
 265                 {
 266                         /* Notice immunity */
 267                         if (r_ptr->flagsr & RFR_EFF_IM_ELEC_MASK)
 268                         {
 269                                 if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 270                                 {
 271                                         r_ptr->r_flagsr |= (r_ptr->flagsr & RFR_EFF_IM_ELEC_MASK);
 272                                 }
 273                         }
 274                         else
 275                         {
 276                                 if (mult < 17) mult = 17;
 277                         }
 278                 }
 279
 280                 if (have_flag(flgs, TR_BRAND_FIRE))
 281                 {
 282                         /* Notice immunity */
 283                         if (r_ptr->flagsr & RFR_EFF_IM_FIRE_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_FIRE_MASK);
 288                                 }
 289                         }
 290                         /* Otherwise, take the damage */
 291                         else
 292                         {
 293                                 if (r_ptr->flags3 & RF3_HURT_FIRE)
 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_FIRE;
 299                                         }
 300                                 }
 301                                 else if (mult < 17) mult = 17;
 302                         }
 303                 }
 304
 305                 if (have_flag(flgs, TR_BRAND_COLD))
 306                 {
 307                         /* Notice immunity */
 308                         if (r_ptr->flagsr & RFR_EFF_IM_COLD_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_COLD_MASK);
 313                                 }
 314                         }
 315                         /* Otherwise, take the damage */
 316                         else
 317                         {
 318                                 if (r_ptr->flags3 & RF3_HURT_COLD)
 319                                 {
 320                                         if (mult < 25) mult = 25;
 321                                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 322                                         {
 323                                                 r_ptr->r_flags3 |= RF3_HURT_COLD;
 324                                         }
 325                                 }
 326                                 else if (mult < 17) mult = 17;
 327                         }
 328                 }
 329
 330                 if (have_flag(flgs, TR_BRAND_POIS))
 331                 {
 332                         /* Notice immunity */
 333                         if (r_ptr->flagsr & RFR_EFF_IM_POIS_MASK)
 334                         {
 335                                 if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 336                                 {
 337                                         r_ptr->r_flagsr |= (r_ptr->flagsr & RFR_EFF_IM_POIS_MASK);
 338                                 }
 339                         }
 340                         /* Otherwise, take the damage */
 341                         else
 342                         {
 343                                 if (mult < 17) mult = 17;
 344                         }
 345                 }
 346
 347                 if ((have_flag(flgs, TR_FORCE_WEAPON)) && (sniper_ptr->csp > (sniper_ptr->msp / 30)))
 348                 {
 349                         sniper_ptr->csp -= (1 + (sniper_ptr->msp / 30));
 350                         sniper_ptr->redraw |= (PR_MANA);
 351                         mult = mult * 5 / 2;
 352                 }
 353                 break;
 354         }
 355         }
 356
 357         /* Sniper */
 358         if (snipe_type) mult = calc_snipe_damage_with_slay(sniper_ptr, mult, m_ptr, snipe_type);
 359
 360         /* Return the total damage */
 361         return (tdam * mult / 10);
 362 }
 363
 364
 365 /*!
 366  * @brief 射撃処理実行 /
 367  * Fire an object from the pack or floor.
 368  * @param item 射撃するオブジェクトの所持ID
 369  * @param j_ptr 射撃武器のオブジェクト参照ポインタ
 370  * @return なし
 371  * @details
 372  * <pre>
 373  * You may only fire items that "match" your missile launcher.
 374  * You must use slings + pebbles/shots, bows + arrows, xbows + bolts.
 375  * See "calc_bonuses()" for more calculations and such.
 376  * Note that "firing" a missile is MUCH better than "throwing" it.
 377  * Note: "unseen" monsters are very hard to hit.
 378  * Objects are more likely to break if they "attempt" to hit a monster.
 379  * Rangers (with Bows) and Anyone (with "Extra Shots") get extra shots.
 380  * The "extra shot" code works by decreasing the amount of energy
 381  * required to make each shot, spreading the shots out over time.
 382  * Note that when firing missiles, the launcher multiplier is applied
 383  * after all the bonuses are added in, making multipliers very useful.
 384  * Note that Bows of "Extra Might" get extra range and an extra bonus
 385  * for the damage multiplier.
 386  * Note that Bows of "Extra Shots" give an extra shot.
 387  * </pre>
 388  */
 389 void exe_fire(player_type *shooter_ptr, INVENTORY_IDX item, object_type *j_ptr, SPELL_IDX snipe_type)
 390 {
 391         DIRECTION dir;
 392         int i;
 393         POSITION y, x, ny, nx, ty, tx, prev_y, prev_x;
 394         int tdam_base, tdis, thits, tmul;
 395         int bonus, chance;
 396         int cur_dis, visible;
 397         PERCENTAGE j;
 398
 399         object_type forge;
 400         object_type *q_ptr;
 401
 402         object_type *o_ptr;
 403
 404         bool hit_body = FALSE;
 405
 406         GAME_TEXT o_name[MAX_NLEN];
 407
 408         u16b path_g[512];       /* For calcuration of path length */
 409
 410         int msec = delay_factor * delay_factor * delay_factor;
 411
 412         /* STICK TO */
 413         bool stick_to = FALSE;
 414
 415         /* Access the item (if in the pack) */
 416         if (item >= 0)
 417         {
 418                 o_ptr = &shooter_ptr->inventory_list[item];
 419         }
 420         else
 421         {
 422                 o_ptr = &shooter_ptr->current_floor_ptr->o_list[0 - item];
 423         }
 424
 425         /* Sniper - Cannot shot a single arrow twice */
 426         if ((snipe_type == SP_DOUBLE) && (o_ptr->number < 2)) snipe_type = SP_NONE;
 427
 428         object_desc(shooter_ptr, o_name, o_ptr, OD_OMIT_PREFIX);
 429
 430         /* Use the proper number of shots */
 431         thits = shooter_ptr->num_fire;
 432
 433         /* Use a base distance */
 434         tdis = 10;
 435
 436         /* Base damage from thrown object plus launcher bonus */
 437         tdam_base = damroll(o_ptr->dd, o_ptr->ds) + o_ptr->to_d + j_ptr->to_d;
 438
 439         /* Actually "fire" the object */
 440         bonus = (shooter_ptr->to_h_b + o_ptr->to_h + j_ptr->to_h);
 441         if ((j_ptr->sval == SV_LIGHT_XBOW) || (j_ptr->sval == SV_HEAVY_XBOW))
 442                 chance = (shooter_ptr->skill_thb + (shooter_ptr->weapon_exp[0][j_ptr->sval] / 400 + bonus) * BTH_PLUS_ADJ);
 443         else
 444                 chance = (shooter_ptr->skill_thb + ((shooter_ptr->weapon_exp[0][j_ptr->sval] - (WEAPON_EXP_MASTER / 2)) / 200 + bonus) * BTH_PLUS_ADJ);
 445
 446         shooter_ptr->energy_use = bow_energy(j_ptr->sval);
 447         tmul = bow_tmul(j_ptr->sval);
 448
 449         /* Get extra "power" from "extra might" */
 450         if (shooter_ptr->xtra_might) tmul++;
 451
 452         tmul = tmul * (100 + (int)(adj_str_td[shooter_ptr->stat_ind[A_STR]]) - 128);
 453
 454         /* Boost the damage */
 455         tdam_base *= tmul;
 456         tdam_base /= 100;
 457
 458         /* Base range */
 459         tdis = 13 + tmul / 80;
 460         if ((j_ptr->sval == SV_LIGHT_XBOW) || (j_ptr->sval == SV_HEAVY_XBOW))
 461         {
 462                 if (shooter_ptr->concent)
 463                         tdis -= (5 - (shooter_ptr->concent + 1) / 2);
 464                 else
 465                         tdis -= 5;
 466         }
 467
 468         project_length = tdis + 1;
 469
 470         /* Get a direction (or cancel) */
 471         if (!get_aim_dir(shooter_ptr, &dir))
 472         {
 473                 free_turn(shooter_ptr);
 474
 475                 if (snipe_type == SP_AWAY) snipe_type = SP_NONE;
 476
 477                 /* need not to reset project_length (already did)*/
 478
 479                 return;
 480         }
 481
 482         /* Predict the "target" location */
 483         tx = shooter_ptr->x + 99 * ddx[dir];
 484         ty = shooter_ptr->y + 99 * ddy[dir];
 485
 486         /* Check for "target request" */
 487         if ((dir == 5) && target_okay(shooter_ptr))
 488         {
 489                 tx = target_col;
 490                 ty = target_row;
 491         }
 492
 493         /* Get projection path length */
 494         tdis = project_path(shooter_ptr, path_g, project_length, shooter_ptr->y, shooter_ptr->x, ty, tx, PROJECT_PATH | PROJECT_THRU) - 1;
 495
 496         project_length = 0; /* reset to default */
 497
 498         /* Don't shoot at my feet */
 499         if (tx == shooter_ptr->x && ty == shooter_ptr->y)
 500         {
 501                 free_turn(shooter_ptr);
 502
 503                 /* project_length is already reset to 0 */
 504
 505                 return;
 506         }
 507
 508
 509         /* Take a (partial) turn */
 510         shooter_ptr->energy_use = (shooter_ptr->energy_use / thits);
 511         shooter_ptr->is_fired = TRUE;
 512
 513         /* Sniper - Difficult to shot twice at 1 turn */
 514         if (snipe_type == SP_DOUBLE)  shooter_ptr->concent = (shooter_ptr->concent + 1) / 2;
 515
 516         /* Sniper - Repeat shooting when double shots */
 517         for (i = 0; i < ((snipe_type == SP_DOUBLE) ? 2 : 1); i++)
 518         {
 519
 520                 /* Start at the player */
 521                 y = shooter_ptr->y;
 522                 x = shooter_ptr->x;
 523                 q_ptr = &forge;
 524                 object_copy(q_ptr, o_ptr);
 525
 526                 /* Single object */
 527                 q_ptr->number = 1;
 528
 529                 vary_item(shooter_ptr, item, -1);
 530
 531                 sound(SOUND_SHOOT);
 532                 handle_stuff(shooter_ptr);
 533
 534                 prev_y = y;
 535                 prev_x = x;
 536
 537                 /* The shot does not hit yet */
 538                 hit_body = FALSE;
 539
 540                 /* Travel until stopped */
 541                 for (cur_dis = 0; cur_dis <= tdis; )
 542                 {
 543                         grid_type *g_ptr;
 544
 545                         /* Hack -- Stop at the target */
 546                         if ((y == ty) && (x == tx)) break;
 547
 548                         /* Calculate the new location (see "project()") */
 549                         ny = y;
 550                         nx = x;
 551                         mmove2(&ny, &nx, shooter_ptr->y, shooter_ptr->x, ty, tx);
 552
 553                         /* Shatter Arrow */
 554                         if (snipe_type == SP_KILL_WALL)
 555                         {
 556                                 g_ptr = &shooter_ptr->current_floor_ptr->grid_array[ny][nx];
 557
 558                                 if (cave_have_flag_grid(g_ptr, FF_HURT_ROCK) && !g_ptr->m_idx)
 559                                 {
 560                                         if (g_ptr->info & (CAVE_MARK)) msg_print(_("岩が砕け散った。", "Wall rocks were shattered."));
 561                                         /* Forget the wall */
 562                                         g_ptr->info &= ~(CAVE_MARK);
 563                                         shooter_ptr->update |= (PU_VIEW | PU_LITE | PU_FLOW | PU_MON_LITE);
 564
 565                                         /* Destroy the wall */
 566                                         cave_alter_feat(shooter_ptr, ny, nx, FF_HURT_ROCK);
 567
 568                                         hit_body = TRUE;
 569                                         break;
 570                                 }
 571                         }
 572
 573                         /* Stopped by walls/doors */
 574                         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;
 575
 576                         /* Advance the distance */
 577                         cur_dis++;
 578
 579                         /* Sniper */
 580                         if (snipe_type == SP_LITE)
 581                         {
 582                                 shooter_ptr->current_floor_ptr->grid_array[ny][nx].info |= (CAVE_GLOW);
 583                                 note_spot(shooter_ptr, ny, nx);
 584                                 lite_spot(shooter_ptr, ny, nx);
 585                         }
 586
 587                         /* The player can see the (on screen) missile */
 588                         if (panel_contains(ny, nx) && player_can_see_bold(shooter_ptr, ny, nx))
 589                         {
 590                                 SYMBOL_CODE c = object_char(q_ptr);
 591                                 byte a = object_attr(q_ptr);
 592
 593                                 /* Draw, Hilite, Fresh, Pause, Erase */
 594                                 print_rel(shooter_ptr, c, a, ny, nx);
 595                                 move_cursor_relative(ny, nx);
 596                                 Term_fresh();
 597                                 Term_xtra(TERM_XTRA_DELAY, msec);
 598                                 lite_spot(shooter_ptr, ny, nx);
 599                                 Term_fresh();
 600                         }
 601
 602                         /* The player cannot see the missile */
 603                         else
 604                         {
 605                                 /* Pause anyway, for consistancy */
 606                                 Term_xtra(TERM_XTRA_DELAY, msec);
 607                         }
 608
 609                         /* Sniper */
 610                         if (snipe_type == SP_KILL_TRAP)
 611                         {
 612                                 project(shooter_ptr, 0, 0, ny, nx, 0, GF_KILL_TRAP,
 613                                         (PROJECT_JUMP | PROJECT_HIDE | PROJECT_GRID | PROJECT_ITEM), -1);
 614                         }
 615
 616                         /* Sniper */
 617                         if (snipe_type == SP_EVILNESS)
 618                         {
 619                                 shooter_ptr->current_floor_ptr->grid_array[ny][nx].info &= ~(CAVE_GLOW | CAVE_MARK);
 620                                 note_spot(shooter_ptr, ny, nx);
 621                                 lite_spot(shooter_ptr, ny, nx);
 622                         }
 623
 624                         prev_y = y;
 625                         prev_x = x;
 626
 627                         /* Save the new location */
 628                         x = nx;
 629                         y = ny;
 630
 631                         /* Monster here, Try to hit it */
 632                         if (shooter_ptr->current_floor_ptr->grid_array[y][x].m_idx)
 633                         {
 634                                 grid_type *c_mon_ptr = &shooter_ptr->current_floor_ptr->grid_array[y][x];
 635
 636                                 monster_type *m_ptr = &shooter_ptr->current_floor_ptr->m_list[c_mon_ptr->m_idx];
 637                                 monster_race *r_ptr = &r_info[m_ptr->r_idx];
 638
 639                                 /* Check the visibility */
 640                                 visible = m_ptr->ml;
 641
 642                                 /* Note the collision */
 643                                 hit_body = TRUE;
 644
 645                                 if (monster_csleep_remaining(m_ptr))
 646                                 {
 647                                         if (!(r_ptr->flags3 & RF3_EVIL) || one_in_(5)) chg_virtue(shooter_ptr, V_COMPASSION, -1);
 648                                         if (!(r_ptr->flags3 & RF3_EVIL) || one_in_(5)) chg_virtue(shooter_ptr, V_HONOUR, -1);
 649                                 }
 650
 651                                 if ((r_ptr->level + 10) > shooter_ptr->lev)
 652                                 {
 653                                         int now_exp = shooter_ptr->weapon_exp[0][j_ptr->sval];
 654                                         if (now_exp < s_info[shooter_ptr->pclass].w_max[0][j_ptr->sval])
 655                                         {
 656                                                 SUB_EXP amount = 0;
 657                                                 if (now_exp < WEAPON_EXP_BEGINNER) amount = 80;
 658                                                 else if (now_exp < WEAPON_EXP_SKILLED) amount = 25;
 659                                                 else if ((now_exp < WEAPON_EXP_EXPERT) && (shooter_ptr->lev > 19)) amount = 10;
 660                                                 else if (shooter_ptr->lev > 34) amount = 2;
 661                                                 shooter_ptr->weapon_exp[0][j_ptr->sval] += amount;
 662                                                 shooter_ptr->update |= (PU_BONUS);
 663                                         }
 664                                 }
 665
 666                                 if (shooter_ptr->riding)
 667                                 {
 668                                         if ((shooter_ptr->skill_exp[GINOU_RIDING] < s_info[shooter_ptr->pclass].s_max[GINOU_RIDING])
 669                                                 && ((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)
 670                                                 && one_in_(2))
 671                                         {
 672                                                 shooter_ptr->skill_exp[GINOU_RIDING] += 1;
 673                                                 shooter_ptr->update |= (PU_BONUS);
 674                                         }
 675                                 }
 676
 677                                 /* Did we hit it (penalize range) */
 678                                 if (test_hit_fire(shooter_ptr, chance - cur_dis, m_ptr, m_ptr->ml, o_name))
 679                                 {
 680                                         bool fear = FALSE;
 681                                         int tdam = tdam_base;
 682
 683                                         /* Get extra damage from concentration */
 684                                         if (shooter_ptr->concent) tdam = boost_concentration_damage(shooter_ptr, tdam);
 685
 686                                         /* Handle unseen monster */
 687                                         if (!visible)
 688                                         {
 689                                                 /* Invisible monster */
 690                                                 msg_format(_("%sが敵を捕捉した。", "The %s finds a mark."), o_name);
 691                                         }
 692
 693                                         /* Handle visible monster */
 694                                         else
 695                                         {
 696                                                 GAME_TEXT m_name[MAX_NLEN];
 697
 698                                                 /* Get "the monster" or "it" */
 699                                                 monster_desc(shooter_ptr, m_name, m_ptr, 0);
 700
 701                                                 msg_format(_("%sが%sに命中した。", "The %s hits %s."), o_name, m_name);
 702
 703                                                 if (m_ptr->ml)
 704                                                 {
 705                                                         if (!shooter_ptr->image) monster_race_track(shooter_ptr, m_ptr->ap_r_idx);
 706                                                         health_track(shooter_ptr, c_mon_ptr->m_idx);
 707                                                 }
 708                                         }
 709
 710                                         if (snipe_type == SP_NEEDLE)
 711                                         {
 712                                                 if ((randint1(randint1(r_ptr->level / (3 + shooter_ptr->concent)) + (8 - shooter_ptr->concent)) == 1)
 713                                                         && !(r_ptr->flags1 & RF1_UNIQUE) && !(r_ptr->flags7 & RF7_UNIQUE2))
 714                                                 {
 715                                                         GAME_TEXT m_name[MAX_NLEN];
 716
 717                                                         /* Get "the monster" or "it" */
 718                                                         monster_desc(shooter_ptr, m_name, m_ptr, 0);
 719
 720                                                         tdam = m_ptr->hp + 1;
 721                                                         msg_format(_("%sの急所に突き刺さった！", "Your shot hit a fatal spot of %s!"), m_name);
 722                                                 }
 723                                                 else tdam = 1;
 724                                         }
 725                                         else
 726                                         {
 727                                                 /* Apply special damage */
 728                                                 tdam = calc_shot_damage_with_slay(shooter_ptr, q_ptr, tdam, m_ptr, snipe_type);
 729                                                 tdam = critical_shot(shooter_ptr, q_ptr->weight, q_ptr->to_h, j_ptr->to_h, tdam);
 730
 731                                                 /* No negative damage */
 732                                                 if (tdam < 0) tdam = 0;
 733
 734                                                 /* Modify the damage */
 735                                                 tdam = mon_damage_mod(shooter_ptr, m_ptr, tdam, FALSE);
 736                                         }
 737
 738                                         msg_format_wizard(shooter_ptr, CHEAT_MONSTER,
 739                                                 _("%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))"),
 740                                                 tdam, m_ptr->hp - tdam, m_ptr->maxhp, m_ptr->max_maxhp);
 741
 742                                         /* Sniper */
 743                                         if (snipe_type == SP_EXPLODE)
 744                                         {
 745                                                 u16b flg = (PROJECT_STOP | PROJECT_JUMP | PROJECT_KILL | PROJECT_GRID);
 746
 747                                                 sound(SOUND_EXPLODE); /* No explode sound - use breath fire instead */
 748                                                 project(shooter_ptr, 0, ((shooter_ptr->concent + 1) / 2 + 1), ny, nx, tdam, GF_MISSILE, flg, -1);
 749                                                 break;
 750                                         }
 751
 752                                         /* Sniper */
 753                                         if (snipe_type == SP_HOLYNESS)
 754                                         {
 755                                                 shooter_ptr->current_floor_ptr->grid_array[ny][nx].info |= (CAVE_GLOW);
 756                                                 note_spot(shooter_ptr, ny, nx);
 757                                                 lite_spot(shooter_ptr, ny, nx);
 758                                         }
 759
 760                                         /* Hit the monster, check for death */
 761                                         if (mon_take_hit(shooter_ptr, c_mon_ptr->m_idx, tdam, &fear, extract_note_dies(real_r_idx(m_ptr))))
 762                                         {
 763                                                 /* Dead monster */
 764                                         }
 765
 766                                         /* No death */
 767                                         else
 768                                         {
 769                                                 /* STICK TO */
 770                                                 if (object_is_fixed_artifact(q_ptr) &&
 771                                                         (shooter_ptr->pclass != CLASS_SNIPER || shooter_ptr->concent == 0))
 772                                                 {
 773                                                         GAME_TEXT m_name[MAX_NLEN];
 774
 775                                                         monster_desc(shooter_ptr, m_name, m_ptr, 0);
 776
 777                                                         stick_to = TRUE;
 778                                                         msg_format(_("%sは%sに突き刺さった！", "%^s is stuck in %s!"), o_name, m_name);
 779                                                 }
 780
 781                                                 message_pain(shooter_ptr, c_mon_ptr->m_idx, tdam);
 782
 783                                                 /* Anger the monster */
 784                                                 if (tdam > 0) anger_monster(shooter_ptr, m_ptr);
 785
 786                                                 if (fear && m_ptr->ml)
 787                                                 {
 788                                                         GAME_TEXT m_name[MAX_NLEN];
 789                                                         sound(SOUND_FLEE);
 790                                                         monster_desc(shooter_ptr, m_name, m_ptr, 0);
 791                                                         msg_format(_("%^sは恐怖して逃げ出した！", "%^s flees in terror!"), m_name);
 792                                                 }
 793
 794                                                 set_target(m_ptr, shooter_ptr->y, shooter_ptr->x);
 795
 796                                                 /* Sniper */
 797                                                 if (snipe_type == SP_RUSH)
 798                                                 {
 799                                                         int n = randint1(5) + 3;
 800                                                         MONSTER_IDX m_idx = c_mon_ptr->m_idx;
 801
 802                                                         for (; cur_dis <= tdis; )
 803                                                         {
 804                                                                 POSITION ox = nx;
 805                                                                 POSITION oy = ny;
 806
 807                                                                 if (!n) break;
 808
 809                                                                 /* Calculate the new location (see "project()") */
 810                                                                 mmove2(&ny, &nx, shooter_ptr->y, shooter_ptr->x, ty, tx);
 811
 812                                                                 /* Stopped by wilderness boundary */
 813                                                                 if (!in_bounds2(shooter_ptr->current_floor_ptr, ny, nx)) break;
 814
 815                                                                 /* Stopped by walls/doors */
 816                                                                 if (!player_can_enter(shooter_ptr, shooter_ptr->current_floor_ptr->grid_array[ny][nx].feat, 0)) break;
 817
 818                                                                 /* Stopped by monsters */
 819                                                                 if (!is_cave_empty_bold(shooter_ptr, ny, nx)) break;
 820
 821                                                                 shooter_ptr->current_floor_ptr->grid_array[ny][nx].m_idx = m_idx;
 822                                                                 shooter_ptr->current_floor_ptr->grid_array[oy][ox].m_idx = 0;
 823
 824                                                                 m_ptr->fx = nx;
 825                                                                 m_ptr->fy = ny;
 826
 827                                                                 update_monster(shooter_ptr, c_mon_ptr->m_idx, TRUE);
 828
 829                                                                 lite_spot(shooter_ptr, ny, nx);
 830                                                                 lite_spot(shooter_ptr, oy, ox);
 831
 832                                                                 Term_fresh();
 833                                                                 Term_xtra(TERM_XTRA_DELAY, msec);
 834
 835                                                                 x = nx;
 836                                                                 y = ny;
 837                                                                 cur_dis++;
 838                                                                 n--;
 839                                                         }
 840                                                 }
 841                                         }
 842                                 }
 843
 844                                 /* Sniper */
 845                                 if (snipe_type == SP_PIERCE)
 846                                 {
 847                                         if (shooter_ptr->concent < 1) break;
 848                                         shooter_ptr->concent--;
 849                                         continue;
 850                                 }
 851
 852                                 /* Stop looking */
 853                                 break;
 854                         }
 855                 }
 856
 857                 /* Chance of breakage (during attacks) */
 858                 j = (hit_body ? breakage_chance(shooter_ptr, q_ptr, shooter_ptr->pclass == CLASS_ARCHER, snipe_type) : 0);
 859
 860                 if (stick_to)
 861                 {
 862                         MONSTER_IDX m_idx = shooter_ptr->current_floor_ptr->grid_array[y][x].m_idx;
 863                         monster_type *m_ptr = &shooter_ptr->current_floor_ptr->m_list[m_idx];
 864                         OBJECT_IDX o_idx = o_pop(shooter_ptr->current_floor_ptr);
 865
 866                         if (!o_idx)
 867                         {
 868                                 msg_format(_("%sはどこかへ行った。", "The %s went somewhere."), o_name);
 869                                 if (object_is_fixed_artifact(q_ptr))
 870                                 {
 871                                         a_info[j_ptr->name1].cur_num = 0;
 872                                 }
 873                                 return;
 874                         }
 875
 876                         o_ptr = &shooter_ptr->current_floor_ptr->o_list[o_idx];
 877                         object_copy(o_ptr, q_ptr);
 878
 879                         /* Forget mark */
 880                         o_ptr->marked &= OM_TOUCHED;
 881
 882                         /* Forget location */
 883                         o_ptr->iy = o_ptr->ix = 0;
 884
 885                         /* Memorize monster */
 886                         o_ptr->held_m_idx = m_idx;
 887
 888                         /* Build a stack */
 889                         o_ptr->next_o_idx = m_ptr->hold_o_idx;
 890
 891                         /* Carry object */
 892                         m_ptr->hold_o_idx = o_idx;
 893                 }
 894                 else if (cave_have_flag_bold(shooter_ptr->current_floor_ptr, y, x, FF_PROJECT))
 895                 {
 896                         /* Drop (or break) near that location */
 897                         (void)drop_near(shooter_ptr, q_ptr, j, y, x);
 898                 }
 899                 else
 900                 {
 901                         /* Drop (or break) near that location */
 902                         (void)drop_near(shooter_ptr, q_ptr, j, prev_y, prev_x);
 903                 }
 904
 905                 /* Sniper - Repeat shooting when double shots */
 906         }
 907
 908         /* Sniper - Loose his/her concentration after any shot */
 909         if (shooter_ptr->concent) reset_concentration(shooter_ptr, FALSE);
 910 }
 911
 912
 913 /*!
 914 * @brief プレイヤーからモンスターへの射撃命中判定 /
 915 * Determine if the player "hits" a monster (normal combat).
 916 * @param chance 基本命中値
 917 * @param m_ptr モンスターの構造体参照ポインタ
 918 * @param vis 目標を視界に捕らえているならばTRUEを指定
 919 * @param o_name メッセージ表示時のモンスター名
 920 * @return 命中と判定された場合TRUEを返す
 921 * @note Always miss 5%, always hit 5%, otherwise random.
 922 */
 923 bool test_hit_fire(player_type *shooter_ptr, int chance, monster_type *m_ptr, int vis, char* o_name)
 924 {
 925         int k;
 926         ARMOUR_CLASS ac;
 927         monster_race *r_ptr = &r_info[m_ptr->r_idx];
 928
 929         /* Percentile dice */
 930         k = randint1(100);
 931
 932         /* Snipers with high-concentration reduce instant miss percentage.*/
 933         k += shooter_ptr->concent;
 934
 935         /* Hack -- Instant miss or hit */
 936         if (k <= 5) return FALSE;
 937         if (k > 95) return TRUE;
 938
 939         if (shooter_ptr->pseikaku == PERSONALITY_LAZY)
 940                 if (one_in_(20)) return FALSE;
 941
 942         /* Never hit */
 943         if (chance <= 0) return FALSE;
 944
 945         ac = r_ptr->ac;
 946         if (shooter_ptr->concent)
 947         {
 948                 ac *= (8 - shooter_ptr->concent);
 949                 ac /= 8;
 950         }
 951
 952         if (m_ptr->r_idx == MON_GOEMON && !monster_csleep_remaining(m_ptr)) ac *= 3;
 953
 954         /* Invisible monsters are harder to hit */
 955         if (!vis) chance = (chance + 1) / 2;
 956
 957         /* Power competes against armor */
 958         if (randint0(chance) < (ac * 3 / 4))
 959         {
 960                 if (m_ptr->r_idx == MON_GOEMON && !monster_csleep_remaining(m_ptr))
 961                 {
 962                         GAME_TEXT m_name[MAX_NLEN];
 963                         monster_desc(shooter_ptr, m_name, m_ptr, 0);
 964                         msg_format(_("%sは%sを斬り捨てた！", "%s cuts down %s!"), m_name, o_name);
 965                 }
 966                 return FALSE;
 967         }
 968
 969         /* Assume hit */
 970         return TRUE;
 971 }
 972
 973
 974
 975
 976 /*!
 977 * @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 /
 978 * Critical hits (from objects thrown by player) Factor in item weight, total plusses, and player level.
 979 * @param weight 矢弾の重量
 980 * @param plus_ammo 矢弾の命中修正
 981 * @param plus_bow 弓の命中修正
 982 * @param dam 現在算出中のダメージ値
 983 * @return クリティカル修正が入ったダメージ値
 984 */
 985 HIT_POINT critical_shot(player_type *shooter_ptr, WEIGHT weight, int plus_ammo, int plus_bow, HIT_POINT dam)
 986 {
 987         int i, k;
 988         object_type *j_ptr = &shooter_ptr->inventory_list[INVEN_BOW];
 989
 990         /* Extract "shot" power */
 991         i = shooter_ptr->to_h_b + plus_ammo;
 992
 993         if (shooter_ptr->tval_ammo == TV_BOLT)
 994                 i = (shooter_ptr->skill_thb + (shooter_ptr->weapon_exp[0][j_ptr->sval] / 400 + i) * BTH_PLUS_ADJ);
 995         else
 996                 i = (shooter_ptr->skill_thb + ((shooter_ptr->weapon_exp[0][j_ptr->sval] - (WEAPON_EXP_MASTER / 2)) / 200 + i) * BTH_PLUS_ADJ);
 997
 998
 999         /* Snipers can shot more critically with crossbows */
1000         if (shooter_ptr->concent) i += ((i * shooter_ptr->concent) / 5);
1001         if ((shooter_ptr->pclass == CLASS_SNIPER) && (shooter_ptr->tval_ammo == TV_BOLT)) i *= 2;
1002
1003         /* Good bow makes more critical */
1004         i += plus_bow * 8 * (shooter_ptr->concent ? shooter_ptr->concent + 5 : 5);
1005
1006         /* Critical hit */
1007         if (randint1(10000) <= i)
1008         {
1009                 k = weight * randint1(500);
1010
1011                 if (k < 900)
1012                 {
1013                         msg_print(_("手ごたえがあった！", "It was a good hit!"));
1014                         dam += (dam / 2);
1015                 }
1016                 else if (k < 1350)
1017                 {
1018                         msg_print(_("かなりの手ごたえがあった！", "It was a great hit!"));
1019                         dam *= 2;
1020                 }
1021                 else
1022                 {
1023                         msg_print(_("会心の一撃だ！", "It was a superb hit!"));
1024                         dam *= 3;
1025                 }
1026         }
1027
1028         return (dam);
1029 }
1030
1031
1032
1033
1034 /*!
1035  * @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
1036  * @param sval 射撃武器のアイテム副分類ID
1037  * @return 消費する基本エネルギー
1038  */
1039 ENERGY bow_energy(OBJECT_SUBTYPE_VALUE sval)
1040 {
1041         ENERGY energy = 10000;
1042
1043         /* Analyze the launcher */
1044         switch (sval)
1045         {
1046                 /* Sling and ammo */
1047         case SV_SLING:
1048         {
1049                 energy = 8000;
1050                 break;
1051         }
1052
1053         /* Short Bow and Arrow */
1054         case SV_SHORT_BOW:
1055         {
1056                 energy = 10000;
1057                 break;
1058         }
1059
1060         /* Long Bow and Arrow */
1061         case SV_LONG_BOW:
1062         {
1063                 energy = 10000;
1064                 break;
1065         }
1066
1067         /* Bow of irresponsiblity and Arrow */
1068         case SV_NAMAKE_BOW:
1069         {
1070                 energy = 7777;
1071                 break;
1072         }
1073
1074         /* Light Crossbow and Bolt */
1075         case SV_LIGHT_XBOW:
1076         {
1077                 energy = 12000;
1078                 break;
1079         }
1080
1081         /* Heavy Crossbow and Bolt */
1082         case SV_HEAVY_XBOW:
1083         {
1084                 energy = 13333;
1085                 break;
1086         }
1087         }
1088
1089         return (energy);
1090 }
1091
1092
1093 /*
1094  * Return bow tmul
1095  */
1096 int bow_tmul(OBJECT_SUBTYPE_VALUE sval)
1097 {
1098         int tmul = 0;
1099
1100         /* Analyze the launcher */
1101         switch (sval)
1102         {
1103                 /* Sling and ammo */
1104         case SV_SLING:
1105         {
1106                 tmul = 2;
1107                 break;
1108         }
1109
1110         /* Short Bow and Arrow */
1111         case SV_SHORT_BOW:
1112         {
1113                 tmul = 2;
1114                 break;
1115         }
1116
1117         /* Long Bow and Arrow */
1118         case SV_LONG_BOW:
1119         {
1120                 tmul = 3;
1121                 break;
1122         }
1123
1124         /* Bow of irresponsiblity and Arrow */
1125         case SV_NAMAKE_BOW:
1126         {
1127                 tmul = 3;
1128                 break;
1129         }
1130
1131         /* Light Crossbow and Bolt */
1132         case SV_LIGHT_XBOW:
1133         {
1134                 tmul = 3;
1135                 break;
1136         }
1137
1138         /* Heavy Crossbow and Bolt */
1139         case SV_HEAVY_XBOW:
1140         {
1141                 tmul = 4;
1142                 break;
1143         }
1144         }
1145
1146         return (tmul);
1147 }
1148
1149
1150 /*!
1151  * @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
1152  * @param shooter_ptr 射撃を行うクリーチャー参照ポインタ
1153  * @param plus_ammo 矢弾のダメージ修正
1154  * @param plus_bow 弓のダメージ修正
1155  * @return ダメージ期待値
1156  * @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。
1157  */
1158 HIT_POINT calc_crit_ratio_shot(player_type* shooter_ptr, HIT_POINT plus_ammo, HIT_POINT plus_bow)
1159 {
1160         HIT_POINT i;
1161         object_type *j_ptr = &shooter_ptr->inventory_list[INVEN_BOW];
1162
1163         /* Extract "shot" power */
1164         i = shooter_ptr->to_h_b + plus_ammo;
1165
1166         if (shooter_ptr->tval_ammo == TV_BOLT)
1167                 i = (shooter_ptr->skill_thb + (shooter_ptr->weapon_exp[0][j_ptr->sval] / 400 + i) * BTH_PLUS_ADJ);
1168         else
1169                 i = (shooter_ptr->skill_thb + ((shooter_ptr->weapon_exp[0][j_ptr->sval] - (WEAPON_EXP_MASTER / 2)) / 200 + i) * BTH_PLUS_ADJ);
1170
1171         /* Snipers can shot more critically with crossbows */
1172         if (shooter_ptr->concent) i += ((i * shooter_ptr->concent) / 5);
1173         if ((shooter_ptr->pclass == CLASS_SNIPER) && (shooter_ptr->tval_ammo == TV_BOLT)) i *= 2;
1174
1175         /* Good bow makes more critical */
1176         i += plus_bow * 8 * (shooter_ptr->concent ? shooter_ptr->concent + 5 : 5);
1177
1178         if (i < 0) i = 0;
1179
1180         return i;
1181 }
1182
1183 /*!
1184  * @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
1185  * @param weight 武器の重量
1186  * @param plus_ammo 矢弾のダメージ修正
1187  * @param plus_bow 弓のダメージ修正
1188  * @param dam 基本ダメージ量
1189  * @return ダメージ期待値
1190  */
1191 HIT_POINT calc_expect_crit_shot(player_type *shooter_ptr, WEIGHT weight, int plus_ammo, int plus_bow, HIT_POINT dam)
1192 {
1193         u32b num;
1194         int i, k, crit;
1195         i = calc_crit_ratio_shot(shooter_ptr, plus_ammo, plus_bow);
1196
1197         k = 0;
1198         num = 0;
1199
1200         crit = MIN(500, 900 / weight);
1201         num += dam * 3 / 2 * crit;
1202         k = crit;
1203
1204         crit = MIN(500, 1350 / weight);
1205         crit -= k;
1206         num += dam * 2 * crit;
1207         k += crit;
1208
1209         if (k < 500)
1210         {
1211                 crit = 500 - k;
1212                 num += dam * 3 * crit;
1213         }
1214
1215         num /= 500;
1216
1217         num *= i;
1218         num += (10000 - i) * dam;
1219         num /= 10000;
1220
1221         return num;
1222 }
1223
1224 /*!
1225  * @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
1226  * @param shooter_ptr プレーヤーへの参照ポインタ
1227  * @param weight 武器の重量
1228  * @param plus 武器のダメージ修正
1229  * @param dam 基本ダメージ
1230  * @param meichuu 命中値
1231  * @param dokubari 毒針処理か否か
1232  * @return ダメージ期待値
1233  */
1234 HIT_POINT calc_expect_crit(player_type *shooter_ptr, WEIGHT weight, int plus, HIT_POINT dam, s16b meichuu, bool dokubari)
1235 {
1236         u32b k, num;
1237         if (dokubari) return dam;
1238
1239         int i = (weight + (meichuu * 3 + plus * 5) + shooter_ptr->skill_thn);
1240         if (i < 0) i = 0;
1241
1242         k = weight;
1243         num = 0;
1244
1245         if (k < 400)                                            num += (2 * dam + 5) * (400 - k);
1246         if (k < 700)                                            num += (2 * dam + 10) * (MIN(700, k + 650) - MAX(400, k));
1247         if (k > (700 - 650) && k < 900)         num += (3 * dam + 15) * (MIN(900, k + 650) - MAX(700, k));
1248         if (k > (900 - 650) && k < 1300)                num += (3 * dam + 20) * (MIN(1300, k + 650) - MAX(900, k));
1249         if (k > (1300 - 650))                                   num += (7 * dam / 2 + 25) * MIN(650, k - (1300 - 650));
1250
1251         num /= 650;
1252         if (shooter_ptr->pclass == CLASS_NINJA)
1253         {
1254                 num *= i;
1255                 num += (4444 - i) * dam;
1256                 num /= 4444;
1257         }
1258         else
1259         {
1260                 num *= i;
1261                 num += (5000 - i) * dam;
1262                 num /= 5000;
1263         }
1264
1265         return num;
1266 }
1267