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/feature.h"
  11 #include "grid/grid.h"
  12 #include "inventory/inventory-object.h"
  13 #include "io/cursor.h"
  14 #include "io/screen-util.h"
  15 #include "io/targeting.h"
  16 #include "main/sound-definitions-table.h"
  17 #include "main/sound-of-music.h"
  18 #include "mind/snipe-types.h"
  19 #include "monster-race/monster-race.h"
  20 #include "monster-race/race-flags-resistance.h"
  21 #include "monster-race/race-flags1.h"
  22 #include "monster-race/race-flags2.h"
  23 #include "monster-race/race-flags3.h"
  24 #include "monster-race/race-flags7.h"
  25 #include "monster-race/race-indice-types.h"
  26 #include "monster/monster-describer.h"
  27 #include "monster-floor/monster-death.h"
  28 #include "monster/monster-status.h"
  29 #include "monster/monster-info.h"
  30 #include "monster-floor/monster-move.h"
  31 #include "monster/monster-update.h"
  32 #include "object-enchant/artifact.h"
  33 #include "object-enchant/tr-types.h"
  34 #include "object/object-broken.h"
  35 #include "object/object-flags.h"
  36 #include "object/object-flavor.h"
  37 #include "object/object-generator.h"
  38 #include "object/object-hook.h"
  39 #include "object/object-kind.h"
  40 #include "object/object-mark-types.h"
  41 #include "object/object-info.h"
  42 #include "player/avatar.h"
  43 #include "player/player-class.h"
  44 #include "player/player-personalities-types.h"
  45 #include "player/player-skill.h"
  46 #include "player/player-status.h"
  47 #include "spell/process-effect.h"
  48 #include "spell/spell-types.h"
  49 #include "sv-definition/sv-bow-types.h"
  50 #include "util/bit-flags-calculator.h"
  51 #include "view/display-messages.h"
  52 #include "world/world-object.h"
  53
  54 /*!
  55  * @brief 矢弾を射撃した際のスレイ倍率をかけた結果を返す /
  56  * Determines the odds of an object breaking when thrown at a monster
  57  * @param o_ptr 矢弾のオブジェクト構造体参照ポインタ
  58  * @param tdam 計算途中のダメージ量
  59  * @param m_ptr 目標モンスターの構造体参照ポインタ
  60  * @return スレイ倍率をかけたダメージ量
  61  */
  62 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)
  63 {
  64         MULTIPLY mult = 10;
  65
  66         monster_race *r_ptr = &r_info[m_ptr->r_idx];
  67
  68         BIT_FLAGS flgs[TR_FLAG_SIZE];
  69         object_flags(o_ptr, flgs);
  70
  71         /* Some "weapons" and "ammo" do extra damage */
  72         switch (o_ptr->tval)
  73         {
  74         case TV_SHOT:
  75         case TV_ARROW:
  76         case TV_BOLT:
  77         {
  78                 if ((have_flag(flgs, TR_SLAY_ANIMAL)) && (r_ptr->flags3 & RF3_ANIMAL))
  79                 {
  80                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
  81                         {
  82                                 r_ptr->r_flags3 |= RF3_ANIMAL;
  83                         }
  84                         if (mult < 17) mult = 17;
  85                 }
  86
  87                 if ((have_flag(flgs, TR_KILL_ANIMAL)) && (r_ptr->flags3 & RF3_ANIMAL))
  88                 {
  89                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
  90                         {
  91                                 r_ptr->r_flags3 |= RF3_ANIMAL;
  92                         }
  93                         if (mult < 27) mult = 27;
  94                 }
  95
  96                 if ((have_flag(flgs, TR_SLAY_EVIL)) && (r_ptr->flags3 & RF3_EVIL))
  97                 {
  98                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
  99                         {
 100                                 r_ptr->r_flags3 |= RF3_EVIL;
 101                         }
 102                         if (mult < 15) mult = 15;
 103                 }
 104
 105                 if ((have_flag(flgs, TR_KILL_EVIL)) && (r_ptr->flags3 & RF3_EVIL))
 106                 {
 107                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 108                         {
 109                                 r_ptr->r_flags3 |= RF3_EVIL;
 110                         }
 111                         if (mult < 25) mult = 25;
 112                 }
 113
 114                 if ((have_flag(flgs, TR_SLAY_HUMAN)) && (r_ptr->flags2 & RF2_HUMAN))
 115                 {
 116                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 117                         {
 118                                 r_ptr->r_flags2 |= RF2_HUMAN;
 119                         }
 120                         if (mult < 17) mult = 17;
 121                 }
 122
 123                 if ((have_flag(flgs, TR_KILL_HUMAN)) && (r_ptr->flags2 & RF2_HUMAN))
 124                 {
 125                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 126                         {
 127                                 r_ptr->r_flags2 |= RF2_HUMAN;
 128                         }
 129                         if (mult < 27) mult = 27;
 130                 }
 131
 132                 if ((have_flag(flgs, TR_SLAY_UNDEAD)) && (r_ptr->flags3 & RF3_UNDEAD))
 133                 {
 134                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 135                         {
 136                                 r_ptr->r_flags3 |= RF3_UNDEAD;
 137                         }
 138                         if (mult < 20) mult = 20;
 139                 }
 140
 141                 if ((have_flag(flgs, TR_KILL_UNDEAD)) && (r_ptr->flags3 & RF3_UNDEAD))
 142                 {
 143                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 144                         {
 145                                 r_ptr->r_flags3 |= RF3_UNDEAD;
 146                         }
 147                         if (mult < 30) mult = 30;
 148                 }
 149
 150                 if ((have_flag(flgs, TR_SLAY_DEMON)) && (r_ptr->flags3 & RF3_DEMON))
 151                 {
 152                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 153                         {
 154                                 r_ptr->r_flags3 |= RF3_DEMON;
 155                         }
 156                         if (mult < 20) mult = 20;
 157                 }
 158
 159                 if ((have_flag(flgs, TR_KILL_DEMON)) && (r_ptr->flags3 & RF3_DEMON))
 160                 {
 161                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 162                         {
 163                                 r_ptr->r_flags3 |= RF3_DEMON;
 164                         }
 165                         if (mult < 30) mult = 30;
 166                 }
 167
 168                 if ((have_flag(flgs, TR_SLAY_ORC)) && (r_ptr->flags3 & RF3_ORC))
 169                 {
 170                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 171                         {
 172                                 r_ptr->r_flags3 |= RF3_ORC;
 173                         }
 174                         if (mult < 20) mult = 20;
 175                 }
 176
 177                 if ((have_flag(flgs, TR_KILL_ORC)) && (r_ptr->flags3 & RF3_ORC))
 178                 {
 179                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 180                         {
 181                                 r_ptr->r_flags3 |= RF3_ORC;
 182                         }
 183                         if (mult < 30) mult = 30;
 184                 }
 185
 186                 if ((have_flag(flgs, TR_SLAY_TROLL)) && (r_ptr->flags3 & RF3_TROLL))
 187                 {
 188                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 189                         {
 190                                 r_ptr->r_flags3 |= RF3_TROLL;
 191                         }
 192
 193                         if (mult < 20) mult = 20;
 194                 }
 195
 196                 if ((have_flag(flgs, TR_KILL_TROLL)) && (r_ptr->flags3 & RF3_TROLL))
 197                 {
 198                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 199                         {
 200                                 r_ptr->r_flags3 |= RF3_TROLL;
 201                         }
 202                         if (mult < 30) mult = 30;
 203                 }
 204
 205                 if ((have_flag(flgs, TR_SLAY_GIANT)) && (r_ptr->flags3 & RF3_GIANT))
 206                 {
 207                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 208                         {
 209                                 r_ptr->r_flags3 |= RF3_GIANT;
 210                         }
 211                         if (mult < 20) mult = 20;
 212                 }
 213
 214                 if ((have_flag(flgs, TR_KILL_GIANT)) && (r_ptr->flags3 & RF3_GIANT))
 215                 {
 216                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 217                         {
 218                                 r_ptr->r_flags3 |= RF3_GIANT;
 219                         }
 220                         if (mult < 30) mult = 30;
 221                 }
 222
 223                 if ((have_flag(flgs, TR_SLAY_DRAGON)) && (r_ptr->flags3 & RF3_DRAGON))
 224                 {
 225                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 226                         {
 227                                 r_ptr->r_flags3 |= RF3_DRAGON;
 228                         }
 229                         if (mult < 20) mult = 20;
 230                 }
 231
 232                 if ((have_flag(flgs, TR_KILL_DRAGON)) && (r_ptr->flags3 & RF3_DRAGON))
 233                 {
 234                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 235                         {
 236                                 r_ptr->r_flags3 |= RF3_DRAGON;
 237                         }
 238                         if (mult < 30) mult = 30;
 239                         if ((o_ptr->name1 == ART_BARD_ARROW) && (m_ptr->r_idx == MON_SMAUG) &&
 240                                 (sniper_ptr->inventory_list[INVEN_BOW].name1 == ART_BARD))
 241                                 mult *= 5;
 242                 }
 243
 244                 if (have_flag(flgs, TR_BRAND_ACID))
 245                 {
 246                         /* Notice immunity */
 247                         if (r_ptr->flagsr & RFR_EFF_IM_ACID_MASK)
 248                         {
 249                                 if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 250                                 {
 251                                         r_ptr->r_flagsr |= (r_ptr->flagsr & RFR_EFF_IM_ACID_MASK);
 252                                 }
 253                         }
 254                         else
 255                         {
 256                                 if (mult < 17) mult = 17;
 257                         }
 258                 }
 259
 260                 if (have_flag(flgs, TR_BRAND_ELEC))
 261                 {
 262                         /* Notice immunity */
 263                         if (r_ptr->flagsr & RFR_EFF_IM_ELEC_MASK)
 264                         {
 265                                 if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 266                                 {
 267                                         r_ptr->r_flagsr |= (r_ptr->flagsr & RFR_EFF_IM_ELEC_MASK);
 268                                 }
 269                         }
 270                         else
 271                         {
 272                                 if (mult < 17) mult = 17;
 273                         }
 274                 }
 275
 276                 if (have_flag(flgs, TR_BRAND_FIRE))
 277                 {
 278                         /* Notice immunity */
 279                         if (r_ptr->flagsr & RFR_EFF_IM_FIRE_MASK)
 280                         {
 281                                 if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 282                                 {
 283                                         r_ptr->r_flagsr |= (r_ptr->flagsr & RFR_EFF_IM_FIRE_MASK);
 284                                 }
 285                         }
 286                         /* Otherwise, take the damage */
 287                         else
 288                         {
 289                                 if (r_ptr->flags3 & RF3_HURT_FIRE)
 290                                 {
 291                                         if (mult < 25) mult = 25;
 292                                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 293                                         {
 294                                                 r_ptr->r_flags3 |= RF3_HURT_FIRE;
 295                                         }
 296                                 }
 297                                 else if (mult < 17) mult = 17;
 298                         }
 299                 }
 300
 301                 if (have_flag(flgs, TR_BRAND_COLD))
 302                 {
 303                         /* Notice immunity */
 304                         if (r_ptr->flagsr & RFR_EFF_IM_COLD_MASK)
 305                         {
 306                                 if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 307                                 {
 308                                         r_ptr->r_flagsr |= (r_ptr->flagsr & RFR_EFF_IM_COLD_MASK);
 309                                 }
 310                         }
 311                         /* Otherwise, take the damage */
 312                         else
 313                         {
 314                                 if (r_ptr->flags3 & RF3_HURT_COLD)
 315                                 {
 316                                         if (mult < 25) mult = 25;
 317                                         if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 318                                         {
 319                                                 r_ptr->r_flags3 |= RF3_HURT_COLD;
 320                                         }
 321                                 }
 322                                 else if (mult < 17) mult = 17;
 323                         }
 324                 }
 325
 326                 if (have_flag(flgs, TR_BRAND_POIS))
 327                 {
 328                         /* Notice immunity */
 329                         if (r_ptr->flagsr & RFR_EFF_IM_POIS_MASK)
 330                         {
 331                                 if (is_original_ap_and_seen(sniper_ptr, m_ptr))
 332                                 {
 333                                         r_ptr->r_flagsr |= (r_ptr->flagsr & RFR_EFF_IM_POIS_MASK);
 334                                 }
 335                         }
 336                         /* Otherwise, take the damage */
 337                         else
 338                         {
 339                                 if (mult < 17) mult = 17;
 340                         }
 341                 }
 342
 343                 if ((have_flag(flgs, TR_FORCE_WEAPON)) && (sniper_ptr->csp > (sniper_ptr->msp / 30)))
 344                 {
 345                         sniper_ptr->csp -= (1 + (sniper_ptr->msp / 30));
 346                         sniper_ptr->redraw |= (PR_MANA);
 347                         mult = mult * 5 / 2;
 348                 }
 349                 break;
 350         }
 351         }
 352
 353         /* Sniper */
 354         if (snipe_type) mult = calc_snipe_damage_with_slay(sniper_ptr, mult, m_ptr, snipe_type);
 355
 356         /* Return the total damage */
 357         return (tdam * mult / 10);
 358 }
 359
 360
 361 /*!
 362  * @brief 射撃処理実行 /
 363  * Fire an object from the pack or floor.
 364  * @param item 射撃するオブジェクトの所持ID
 365  * @param j_ptr 射撃武器のオブジェクト参照ポインタ
 366  * @return なし
 367  * @details
 368  * <pre>
 369  * You may only fire items that "match" your missile launcher.
 370  * You must use slings + pebbles/shots, bows + arrows, xbows + bolts.
 371  * See "calc_bonuses()" for more calculations and such.
 372  * Note that "firing" a missile is MUCH better than "throwing" it.
 373  * Note: "unseen" monsters are very hard to hit.
 374  * Objects are more likely to break if they "attempt" to hit a monster.
 375  * Rangers (with Bows) and Anyone (with "Extra Shots") get extra shots.
 376  * The "extra shot" code works by decreasing the amount of energy
 377  * required to make each shot, spreading the shots out over time.
 378  * Note that when firing missiles, the launcher multiplier is applied
 379  * after all the bonuses are added in, making multipliers very useful.
 380  * Note that Bows of "Extra Might" get extra range and an extra bonus
 381  * for the damage multiplier.
 382  * Note that Bows of "Extra Shots" give an extra shot.
 383  * </pre>
 384  */
 385 void exe_fire(player_type *shooter_ptr, INVENTORY_IDX item, object_type *j_ptr, SPELL_IDX snipe_type)
 386 {
 387         DIRECTION dir;
 388         int i;
 389         POSITION y, x, ny, nx, ty, tx, prev_y, prev_x;
 390         int tdam_base, tdis, thits, tmul;
 391         int bonus, chance;
 392         int cur_dis, visible;
 393         PERCENTAGE j;
 394
 395         object_type forge;
 396         object_type *q_ptr;
 397
 398         object_type *o_ptr;
 399
 400         bool hit_body = FALSE;
 401
 402         GAME_TEXT o_name[MAX_NLEN];
 403
 404         u16b path_g[512];       /* For calcuration of path length */
 405
 406         int msec = delay_factor * delay_factor * delay_factor;
 407
 408         /* STICK TO */
 409         bool stick_to = FALSE;
 410
 411         /* Access the item (if in the pack) */
 412         if (item >= 0)
 413         {
 414                 o_ptr = &shooter_ptr->inventory_list[item];
 415         }
 416         else
 417         {
 418                 o_ptr = &shooter_ptr->current_floor_ptr->o_list[0 - item];
 419         }
 420
 421         /* Sniper - Cannot shot a single arrow twice */
 422         if ((snipe_type == SP_DOUBLE) && (o_ptr->number < 2)) snipe_type = SP_NONE;
 423
 424         object_desc(shooter_ptr, o_name, o_ptr, OD_OMIT_PREFIX);
 425
 426         /* Use the proper number of shots */
 427         thits = shooter_ptr->num_fire;
 428
 429         /* Use a base distance */
 430         tdis = 10;
 431
 432         /* Base damage from thrown object plus launcher bonus */
 433         tdam_base = damroll(o_ptr->dd, o_ptr->ds) + o_ptr->to_d + j_ptr->to_d;
 434
 435         /* Actually "fire" the object */
 436         bonus = (shooter_ptr->to_h_b + o_ptr->to_h + j_ptr->to_h);
 437         if ((j_ptr->sval == SV_LIGHT_XBOW) || (j_ptr->sval == SV_HEAVY_XBOW))
 438                 chance = (shooter_ptr->skill_thb + (shooter_ptr->weapon_exp[0][j_ptr->sval] / 400 + bonus) * BTH_PLUS_ADJ);
 439         else
 440                 chance = (shooter_ptr->skill_thb + ((shooter_ptr->weapon_exp[0][j_ptr->sval] - (WEAPON_EXP_MASTER / 2)) / 200 + bonus) * BTH_PLUS_ADJ);
 441
 442         shooter_ptr->energy_use = bow_energy(j_ptr->sval);
 443         tmul = bow_tmul(j_ptr->sval);
 444
 445         /* Get extra "power" from "extra might" */
 446         if (shooter_ptr->xtra_might) tmul++;
 447
 448         tmul = tmul * (100 + (int)(adj_str_td[shooter_ptr->stat_ind[A_STR]]) - 128);
 449
 450         /* Boost the damage */
 451         tdam_base *= tmul;
 452         tdam_base /= 100;
 453
 454         /* Base range */
 455         tdis = 13 + tmul / 80;
 456         if ((j_ptr->sval == SV_LIGHT_XBOW) || (j_ptr->sval == SV_HEAVY_XBOW))
 457         {
 458                 if (shooter_ptr->concent)
 459                         tdis -= (5 - (shooter_ptr->concent + 1) / 2);
 460                 else
 461                         tdis -= 5;
 462         }
 463
 464         project_length = tdis + 1;
 465
 466         /* Get a direction (or cancel) */
 467         if (!get_aim_dir(shooter_ptr, &dir))
 468         {
 469                 free_turn(shooter_ptr);
 470
 471                 if (snipe_type == SP_AWAY) snipe_type = SP_NONE;
 472
 473                 /* need not to reset project_length (already did)*/
 474
 475                 return;
 476         }
 477
 478         /* Predict the "target" location */
 479         tx = shooter_ptr->x + 99 * ddx[dir];
 480         ty = shooter_ptr->y + 99 * ddy[dir];
 481
 482         /* Check for "target request" */
 483         if ((dir == 5) && target_okay(shooter_ptr))
 484         {
 485                 tx = target_col;
 486                 ty = target_row;
 487         }
 488
 489         /* Get projection path length */
 490         tdis = project_path(shooter_ptr, path_g, project_length, shooter_ptr->y, shooter_ptr->x, ty, tx, PROJECT_PATH | PROJECT_THRU) - 1;
 491
 492         project_length = 0; /* reset to default */
 493
 494         /* Don't shoot at my feet */
 495         if (tx == shooter_ptr->x && ty == shooter_ptr->y)
 496         {
 497                 free_turn(shooter_ptr);
 498
 499                 /* project_length is already reset to 0 */
 500
 501                 return;
 502         }
 503
 504
 505         /* Take a (partial) turn */
 506         shooter_ptr->energy_use = (shooter_ptr->energy_use / thits);
 507         shooter_ptr->is_fired = TRUE;
 508
 509         /* Sniper - Difficult to shot twice at 1 turn */
 510         if (snipe_type == SP_DOUBLE)  shooter_ptr->concent = (shooter_ptr->concent + 1) / 2;
 511
 512         /* Sniper - Repeat shooting when double shots */
 513         for (i = 0; i < ((snipe_type == SP_DOUBLE) ? 2 : 1); i++)
 514         {
 515
 516                 /* Start at the player */
 517                 y = shooter_ptr->y;
 518                 x = shooter_ptr->x;
 519                 q_ptr = &forge;
 520                 object_copy(q_ptr, o_ptr);
 521
 522                 /* Single object */
 523                 q_ptr->number = 1;
 524
 525                 vary_item(shooter_ptr, item, -1);
 526
 527                 sound(SOUND_SHOOT);
 528                 handle_stuff(shooter_ptr);
 529
 530                 prev_y = y;
 531                 prev_x = x;
 532
 533                 /* The shot does not hit yet */
 534                 hit_body = FALSE;
 535
 536                 /* Travel until stopped */
 537                 for (cur_dis = 0; cur_dis <= tdis; )
 538                 {
 539                         grid_type *g_ptr;
 540
 541                         /* Hack -- Stop at the target */
 542                         if ((y == ty) && (x == tx)) break;
 543
 544                         /* Calculate the new location (see "project()") */
 545                         ny = y;
 546                         nx = x;
 547                         mmove2(&ny, &nx, shooter_ptr->y, shooter_ptr->x, ty, tx);
 548
 549                         /* Shatter Arrow */
 550                         if (snipe_type == SP_KILL_WALL)
 551                         {
 552                                 g_ptr = &shooter_ptr->current_floor_ptr->grid_array[ny][nx];
 553
 554                                 if (cave_have_flag_grid(g_ptr, FF_HURT_ROCK) && !g_ptr->m_idx)
 555                                 {
 556                                         if (g_ptr->info & (CAVE_MARK)) msg_print(_("岩が砕け散った。", "Wall rocks were shattered."));
 557                                         /* Forget the wall */
 558                                         g_ptr->info &= ~(CAVE_MARK);
 559                                         shooter_ptr->update |= (PU_VIEW | PU_LITE | PU_FLOW | PU_MON_LITE);
 560
 561                                         /* Destroy the wall */
 562                                         cave_alter_feat(shooter_ptr, ny, nx, FF_HURT_ROCK);
 563
 564                                         hit_body = TRUE;
 565                                         break;
 566                                 }
 567                         }
 568
 569                         /* Stopped by walls/doors */
 570                         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;
 571
 572                         /* Advance the distance */
 573                         cur_dis++;
 574
 575                         /* Sniper */
 576                         if (snipe_type == SP_LITE)
 577                         {
 578                                 shooter_ptr->current_floor_ptr->grid_array[ny][nx].info |= (CAVE_GLOW);
 579                                 note_spot(shooter_ptr, ny, nx);
 580                                 lite_spot(shooter_ptr, ny, nx);
 581                         }
 582
 583                         /* The player can see the (on screen) missile */
 584                         if (panel_contains(ny, nx) && player_can_see_bold(shooter_ptr, ny, nx))
 585                         {
 586                                 SYMBOL_CODE c = object_char(q_ptr);
 587                                 byte a = object_attr(q_ptr);
 588
 589                                 /* Draw, Hilite, Fresh, Pause, Erase */
 590                                 print_rel(shooter_ptr, c, a, ny, nx);
 591                                 move_cursor_relative(ny, nx);
 592                                 Term_fresh();
 593                                 Term_xtra(TERM_XTRA_DELAY, msec);
 594                                 lite_spot(shooter_ptr, ny, nx);
 595                                 Term_fresh();
 596                         }
 597
 598                         /* The player cannot see the missile */
 599                         else
 600                         {
 601                                 /* Pause anyway, for consistancy */
 602                                 Term_xtra(TERM_XTRA_DELAY, msec);
 603                         }
 604
 605                         /* Sniper */
 606                         if (snipe_type == SP_KILL_TRAP)
 607                         {
 608                                 project(shooter_ptr, 0, 0, ny, nx, 0, GF_KILL_TRAP,
 609                                         (PROJECT_JUMP | PROJECT_HIDE | PROJECT_GRID | PROJECT_ITEM), -1);
 610                         }
 611
 612                         /* Sniper */
 613                         if (snipe_type == SP_EVILNESS)
 614                         {
 615                                 shooter_ptr->current_floor_ptr->grid_array[ny][nx].info &= ~(CAVE_GLOW | CAVE_MARK);
 616                                 note_spot(shooter_ptr, ny, nx);
 617                                 lite_spot(shooter_ptr, ny, nx);
 618                         }
 619
 620                         prev_y = y;
 621                         prev_x = x;
 622
 623                         /* Save the new location */
 624                         x = nx;
 625                         y = ny;
 626
 627                         /* Monster here, Try to hit it */
 628                         if (shooter_ptr->current_floor_ptr->grid_array[y][x].m_idx)
 629                         {
 630                                 grid_type *c_mon_ptr = &shooter_ptr->current_floor_ptr->grid_array[y][x];
 631
 632                                 monster_type *m_ptr = &shooter_ptr->current_floor_ptr->m_list[c_mon_ptr->m_idx];
 633                                 monster_race *r_ptr = &r_info[m_ptr->r_idx];
 634
 635                                 /* Check the visibility */
 636                                 visible = m_ptr->ml;
 637
 638                                 /* Note the collision */
 639                                 hit_body = TRUE;
 640
 641                                 if (monster_csleep_remaining(m_ptr))
 642                                 {
 643                                         if (!(r_ptr->flags3 & RF3_EVIL) || one_in_(5)) chg_virtue(shooter_ptr, V_COMPASSION, -1);
 644                                         if (!(r_ptr->flags3 & RF3_EVIL) || one_in_(5)) chg_virtue(shooter_ptr, V_HONOUR, -1);
 645                                 }
 646
 647                                 if ((r_ptr->level + 10) > shooter_ptr->lev)
 648                                 {
 649                                         int now_exp = shooter_ptr->weapon_exp[0][j_ptr->sval];
 650                                         if (now_exp < s_info[shooter_ptr->pclass].w_max[0][j_ptr->sval])
 651                                         {
 652                                                 SUB_EXP amount = 0;
 653                                                 if (now_exp < WEAPON_EXP_BEGINNER) amount = 80;
 654                                                 else if (now_exp < WEAPON_EXP_SKILLED) amount = 25;
 655                                                 else if ((now_exp < WEAPON_EXP_EXPERT) && (shooter_ptr->lev > 19)) amount = 10;
 656                                                 else if (shooter_ptr->lev > 34) amount = 2;
 657                                                 shooter_ptr->weapon_exp[0][j_ptr->sval] += amount;
 658                                                 shooter_ptr->update |= (PU_BONUS);
 659                                         }
 660                                 }
 661
 662                                 if (shooter_ptr->riding)
 663                                 {
 664                                         if ((shooter_ptr->skill_exp[GINOU_RIDING] < s_info[shooter_ptr->pclass].s_max[GINOU_RIDING])
 665                                                 && ((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)
 666                                                 && one_in_(2))
 667                                         {
 668                                                 shooter_ptr->skill_exp[GINOU_RIDING] += 1;
 669                                                 shooter_ptr->update |= (PU_BONUS);
 670                                         }
 671                                 }
 672
 673                                 /* Did we hit it (penalize range) */
 674                                 if (test_hit_fire(shooter_ptr, chance - cur_dis, m_ptr, m_ptr->ml, o_name))
 675                                 {
 676                                         bool fear = FALSE;
 677                                         int tdam = tdam_base;
 678
 679                                         /* Get extra damage from concentration */
 680                                         if (shooter_ptr->concent) tdam = boost_concentration_damage(shooter_ptr, tdam);
 681
 682                                         /* Handle unseen monster */
 683                                         if (!visible)
 684                                         {
 685                                                 /* Invisible monster */
 686                                                 msg_format(_("%sが敵を捕捉した。", "The %s finds a mark."), o_name);
 687                                         }
 688
 689                                         /* Handle visible monster */
 690                                         else
 691                                         {
 692                                                 GAME_TEXT m_name[MAX_NLEN];
 693
 694                                                 /* Get "the monster" or "it" */
 695                                                 monster_desc(shooter_ptr, m_name, m_ptr, 0);
 696
 697                                                 msg_format(_("%sが%sに命中した。", "The %s hits %s."), o_name, m_name);
 698
 699                                                 if (m_ptr->ml)
 700                                                 {
 701                                                         if (!shooter_ptr->image) monster_race_track(shooter_ptr, m_ptr->ap_r_idx);
 702                                                         health_track(shooter_ptr, c_mon_ptr->m_idx);
 703                                                 }
 704                                         }
 705
 706                                         if (snipe_type == SP_NEEDLE)
 707                                         {
 708                                                 if ((randint1(randint1(r_ptr->level / (3 + shooter_ptr->concent)) + (8 - shooter_ptr->concent)) == 1)
 709                                                         && !(r_ptr->flags1 & RF1_UNIQUE) && !(r_ptr->flags7 & RF7_UNIQUE2))
 710                                                 {
 711                                                         GAME_TEXT m_name[MAX_NLEN];
 712
 713                                                         /* Get "the monster" or "it" */
 714                                                         monster_desc(shooter_ptr, m_name, m_ptr, 0);
 715
 716                                                         tdam = m_ptr->hp + 1;
 717                                                         msg_format(_("%sの急所に突き刺さった！", "Your shot hit a fatal spot of %s!"), m_name);
 718                                                 }
 719                                                 else tdam = 1;
 720                                         }
 721                                         else
 722                                         {
 723                                                 /* Apply special damage */
 724                                                 tdam = calc_shot_damage_with_slay(shooter_ptr, q_ptr, tdam, m_ptr, snipe_type);
 725                                                 tdam = critical_shot(shooter_ptr, q_ptr->weight, q_ptr->to_h, j_ptr->to_h, tdam);
 726
 727                                                 /* No negative damage */
 728                                                 if (tdam < 0) tdam = 0;
 729
 730                                                 /* Modify the damage */
 731                                                 tdam = mon_damage_mod(shooter_ptr, m_ptr, tdam, FALSE);
 732                                         }
 733
 734                                         msg_format_wizard(CHEAT_MONSTER,
 735                                                 _("%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))"),
 736                                                 tdam, m_ptr->hp - tdam, m_ptr->maxhp, m_ptr->max_maxhp);
 737
 738                                         /* Sniper */
 739                                         if (snipe_type == SP_EXPLODE)
 740                                         {
 741                                                 u16b flg = (PROJECT_STOP | PROJECT_JUMP | PROJECT_KILL | PROJECT_GRID);
 742
 743                                                 sound(SOUND_EXPLODE); /* No explode sound - use breath fire instead */
 744                                                 project(shooter_ptr, 0, ((shooter_ptr->concent + 1) / 2 + 1), ny, nx, tdam, GF_MISSILE, flg, -1);
 745                                                 break;
 746                                         }
 747
 748                                         /* Sniper */
 749                                         if (snipe_type == SP_HOLYNESS)
 750                                         {
 751                                                 shooter_ptr->current_floor_ptr->grid_array[ny][nx].info |= (CAVE_GLOW);
 752                                                 note_spot(shooter_ptr, ny, nx);
 753                                                 lite_spot(shooter_ptr, ny, nx);
 754                                         }
 755
 756                                         /* Hit the monster, check for death */
 757                                         if (mon_take_hit(shooter_ptr, c_mon_ptr->m_idx, tdam, &fear, extract_note_dies(real_r_idx(m_ptr))))
 758                                         {
 759                                                 /* Dead monster */
 760                                         }
 761
 762                                         /* No death */
 763                                         else
 764                                         {
 765                                                 /* STICK TO */
 766                                                 if (object_is_fixed_artifact(q_ptr) &&
 767                                                         (shooter_ptr->pclass != CLASS_SNIPER || shooter_ptr->concent == 0))
 768                                                 {
 769                                                         GAME_TEXT m_name[MAX_NLEN];
 770
 771                                                         monster_desc(shooter_ptr, m_name, m_ptr, 0);
 772
 773                                                         stick_to = TRUE;
 774                                                         msg_format(_("%sは%sに突き刺さった！", "%^s is stuck in %s!"), o_name, m_name);
 775                                                 }
 776
 777                                                 message_pain(shooter_ptr, c_mon_ptr->m_idx, tdam);
 778
 779                                                 /* Anger the monster */
 780                                                 if (tdam > 0) anger_monster(shooter_ptr, m_ptr);
 781
 782                                                 if (fear && m_ptr->ml)
 783                                                 {
 784                                                         GAME_TEXT m_name[MAX_NLEN];
 785                                                         sound(SOUND_FLEE);
 786                                                         monster_desc(shooter_ptr, m_name, m_ptr, 0);
 787                                                         msg_format(_("%^sは恐怖して逃げ出した！", "%^s flees in terror!"), m_name);
 788                                                 }
 789
 790                                                 set_target(m_ptr, shooter_ptr->y, shooter_ptr->x);
 791
 792                                                 /* Sniper */
 793                                                 if (snipe_type == SP_RUSH)
 794                                                 {
 795                                                         int n = randint1(5) + 3;
 796                                                         MONSTER_IDX m_idx = c_mon_ptr->m_idx;
 797
 798                                                         for (; cur_dis <= tdis; )
 799                                                         {
 800                                                                 POSITION ox = nx;
 801                                                                 POSITION oy = ny;
 802
 803                                                                 if (!n) break;
 804
 805                                                                 /* Calculate the new location (see "project()") */
 806                                                                 mmove2(&ny, &nx, shooter_ptr->y, shooter_ptr->x, ty, tx);
 807
 808                                                                 /* Stopped by wilderness boundary */
 809                                                                 if (!in_bounds2(shooter_ptr->current_floor_ptr, ny, nx)) break;
 810
 811                                                                 /* Stopped by walls/doors */
 812                                                                 if (!player_can_enter(shooter_ptr, shooter_ptr->current_floor_ptr->grid_array[ny][nx].feat, 0)) break;
 813
 814                                                                 /* Stopped by monsters */
 815                                                                 if (!is_cave_empty_bold(shooter_ptr, ny, nx)) break;
 816
 817                                                                 shooter_ptr->current_floor_ptr->grid_array[ny][nx].m_idx = m_idx;
 818                                                                 shooter_ptr->current_floor_ptr->grid_array[oy][ox].m_idx = 0;
 819
 820                                                                 m_ptr->fx = nx;
 821                                                                 m_ptr->fy = ny;
 822
 823                                                                 update_monster(shooter_ptr, c_mon_ptr->m_idx, TRUE);
 824
 825                                                                 lite_spot(shooter_ptr, ny, nx);
 826                                                                 lite_spot(shooter_ptr, oy, ox);
 827
 828                                                                 Term_fresh();
 829                                                                 Term_xtra(TERM_XTRA_DELAY, msec);
 830
 831                                                                 x = nx;
 832                                                                 y = ny;
 833                                                                 cur_dis++;
 834                                                                 n--;
 835                                                         }
 836                                                 }
 837                                         }
 838                                 }
 839
 840                                 /* Sniper */
 841                                 if (snipe_type == SP_PIERCE)
 842                                 {
 843                                         if (shooter_ptr->concent < 1) break;
 844                                         shooter_ptr->concent--;
 845                                         continue;
 846                                 }
 847
 848                                 /* Stop looking */
 849                                 break;
 850                         }
 851                 }
 852
 853                 /* Chance of breakage (during attacks) */
 854                 j = (hit_body ? breakage_chance(shooter_ptr, q_ptr, shooter_ptr->pclass == CLASS_ARCHER, snipe_type) : 0);
 855
 856                 if (stick_to)
 857                 {
 858                         MONSTER_IDX m_idx = shooter_ptr->current_floor_ptr->grid_array[y][x].m_idx;
 859                         monster_type *m_ptr = &shooter_ptr->current_floor_ptr->m_list[m_idx];
 860                         OBJECT_IDX o_idx = o_pop(shooter_ptr->current_floor_ptr);
 861
 862                         if (!o_idx)
 863                         {
 864                                 msg_format(_("%sはどこかへ行った。", "The %s went somewhere."), o_name);
 865                                 if (object_is_fixed_artifact(q_ptr))
 866                                 {
 867                                         a_info[j_ptr->name1].cur_num = 0;
 868                                 }
 869                                 return;
 870                         }
 871
 872                         o_ptr = &shooter_ptr->current_floor_ptr->o_list[o_idx];
 873                         object_copy(o_ptr, q_ptr);
 874
 875                         /* Forget mark */
 876                         o_ptr->marked &= OM_TOUCHED;
 877
 878                         /* Forget location */
 879                         o_ptr->iy = o_ptr->ix = 0;
 880
 881                         /* Memorize monster */
 882                         o_ptr->held_m_idx = m_idx;
 883
 884                         /* Build a stack */
 885                         o_ptr->next_o_idx = m_ptr->hold_o_idx;
 886
 887                         /* Carry object */
 888                         m_ptr->hold_o_idx = o_idx;
 889                 }
 890                 else if (cave_have_flag_bold(shooter_ptr->current_floor_ptr, y, x, FF_PROJECT))
 891                 {
 892                         /* Drop (or break) near that location */
 893                         (void)drop_near(shooter_ptr, q_ptr, j, y, x);
 894                 }
 895                 else
 896                 {
 897                         /* Drop (or break) near that location */
 898                         (void)drop_near(shooter_ptr, q_ptr, j, prev_y, prev_x);
 899                 }
 900
 901                 /* Sniper - Repeat shooting when double shots */
 902         }
 903
 904         /* Sniper - Loose his/her concentration after any shot */
 905         if (shooter_ptr->concent) reset_concentration(shooter_ptr, FALSE);
 906 }
 907
 908
 909 /*!
 910 * @brief プレイヤーからモンスターへの射撃命中判定 /
 911 * Determine if the player "hits" a monster (normal combat).
 912 * @param chance 基本命中値
 913 * @param m_ptr モンスターの構造体参照ポインタ
 914 * @param vis 目標を視界に捕らえているならばTRUEを指定
 915 * @param o_name メッセージ表示時のモンスター名
 916 * @return 命中と判定された場合TRUEを返す
 917 * @note Always miss 5%, always hit 5%, otherwise random.
 918 */
 919 bool test_hit_fire(player_type *shooter_ptr, int chance, monster_type *m_ptr, int vis, char* o_name)
 920 {
 921         int k;
 922         ARMOUR_CLASS ac;
 923         monster_race *r_ptr = &r_info[m_ptr->r_idx];
 924
 925         /* Percentile dice */
 926         k = randint1(100);
 927
 928         /* Snipers with high-concentration reduce instant miss percentage.*/
 929         k += shooter_ptr->concent;
 930
 931         /* Hack -- Instant miss or hit */
 932         if (k <= 5) return FALSE;
 933         if (k > 95) return TRUE;
 934
 935         if (shooter_ptr->pseikaku == PERSONALITY_LAZY)
 936                 if (one_in_(20)) return FALSE;
 937
 938         /* Never hit */
 939         if (chance <= 0) return FALSE;
 940
 941         ac = r_ptr->ac;
 942         if (shooter_ptr->concent)
 943         {
 944                 ac *= (8 - shooter_ptr->concent);
 945                 ac /= 8;
 946         }
 947
 948         if (m_ptr->r_idx == MON_GOEMON && !monster_csleep_remaining(m_ptr)) ac *= 3;
 949
 950         /* Invisible monsters are harder to hit */
 951         if (!vis) chance = (chance + 1) / 2;
 952
 953         /* Power competes against armor */
 954         if (randint0(chance) < (ac * 3 / 4))
 955         {
 956                 if (m_ptr->r_idx == MON_GOEMON && !monster_csleep_remaining(m_ptr))
 957                 {
 958                         GAME_TEXT m_name[MAX_NLEN];
 959                         monster_desc(shooter_ptr, m_name, m_ptr, 0);
 960                         msg_format(_("%sは%sを斬り捨てた！", "%s cuts down %s!"), m_name, o_name);
 961                 }
 962                 return FALSE;
 963         }
 964
 965         /* Assume hit */
 966         return TRUE;
 967 }
 968
 969
 970
 971
 972 /*!
 973 * @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 /
 974 * Critical hits (from objects thrown by player) Factor in item weight, total plusses, and player level.
 975 * @param weight 矢弾の重量
 976 * @param plus_ammo 矢弾の命中修正
 977 * @param plus_bow 弓の命中修正
 978 * @param dam 現在算出中のダメージ値
 979 * @return クリティカル修正が入ったダメージ値
 980 */
 981 HIT_POINT critical_shot(player_type *shooter_ptr, WEIGHT weight, int plus_ammo, int plus_bow, HIT_POINT dam)
 982 {
 983         int i, k;
 984         object_type *j_ptr = &shooter_ptr->inventory_list[INVEN_BOW];
 985
 986         /* Extract "shot" power */
 987         i = shooter_ptr->to_h_b + plus_ammo;
 988
 989         if (shooter_ptr->tval_ammo == TV_BOLT)
 990                 i = (shooter_ptr->skill_thb + (shooter_ptr->weapon_exp[0][j_ptr->sval] / 400 + i) * BTH_PLUS_ADJ);
 991         else
 992                 i = (shooter_ptr->skill_thb + ((shooter_ptr->weapon_exp[0][j_ptr->sval] - (WEAPON_EXP_MASTER / 2)) / 200 + i) * BTH_PLUS_ADJ);
 993
 994
 995         /* Snipers can shot more critically with crossbows */
 996         if (shooter_ptr->concent) i += ((i * shooter_ptr->concent) / 5);
 997         if ((shooter_ptr->pclass == CLASS_SNIPER) && (shooter_ptr->tval_ammo == TV_BOLT)) i *= 2;
 998
 999         /* Good bow makes more critical */
1000         i += plus_bow * 8 * (shooter_ptr->concent ? shooter_ptr->concent + 5 : 5);
1001
1002         /* Critical hit */
1003         if (randint1(10000) <= i)
1004         {
1005                 k = weight * randint1(500);
1006
1007                 if (k < 900)
1008                 {
1009                         msg_print(_("手ごたえがあった！", "It was a good hit!"));
1010                         dam += (dam / 2);
1011                 }
1012                 else if (k < 1350)
1013                 {
1014                         msg_print(_("かなりの手ごたえがあった！", "It was a great hit!"));
1015                         dam *= 2;
1016                 }
1017                 else
1018                 {
1019                         msg_print(_("会心の一撃だ！", "It was a superb hit!"));
1020                         dam *= 3;
1021                 }
1022         }
1023
1024         return (dam);
1025 }
1026
1027
1028
1029
1030 /*!
1031  * @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
1032  * @param sval 射撃武器のアイテム副分類ID
1033  * @return 消費する基本エネルギー
1034  */
1035 ENERGY bow_energy(OBJECT_SUBTYPE_VALUE sval)
1036 {
1037         ENERGY energy = 10000;
1038
1039         /* Analyze the launcher */
1040         switch (sval)
1041         {
1042                 /* Sling and ammo */
1043         case SV_SLING:
1044         {
1045                 energy = 8000;
1046                 break;
1047         }
1048
1049         /* Short Bow and Arrow */
1050         case SV_SHORT_BOW:
1051         {
1052                 energy = 10000;
1053                 break;
1054         }
1055
1056         /* Long Bow and Arrow */
1057         case SV_LONG_BOW:
1058         {
1059                 energy = 10000;
1060                 break;
1061         }
1062
1063         /* Bow of irresponsiblity and Arrow */
1064         case SV_NAMAKE_BOW:
1065         {
1066                 energy = 7777;
1067                 break;
1068         }
1069
1070         /* Light Crossbow and Bolt */
1071         case SV_LIGHT_XBOW:
1072         {
1073                 energy = 12000;
1074                 break;
1075         }
1076
1077         /* Heavy Crossbow and Bolt */
1078         case SV_HEAVY_XBOW:
1079         {
1080                 energy = 13333;
1081                 break;
1082         }
1083         }
1084
1085         return (energy);
1086 }
1087
1088
1089 /*
1090  * Return bow tmul
1091  */
1092 int bow_tmul(OBJECT_SUBTYPE_VALUE sval)
1093 {
1094         int tmul = 0;
1095
1096         /* Analyze the launcher */
1097         switch (sval)
1098         {
1099                 /* Sling and ammo */
1100         case SV_SLING:
1101         {
1102                 tmul = 2;
1103                 break;
1104         }
1105
1106         /* Short Bow and Arrow */
1107         case SV_SHORT_BOW:
1108         {
1109                 tmul = 2;
1110                 break;
1111         }
1112
1113         /* Long Bow and Arrow */
1114         case SV_LONG_BOW:
1115         {
1116                 tmul = 3;
1117                 break;
1118         }
1119
1120         /* Bow of irresponsiblity and Arrow */
1121         case SV_NAMAKE_BOW:
1122         {
1123                 tmul = 3;
1124                 break;
1125         }
1126
1127         /* Light Crossbow and Bolt */
1128         case SV_LIGHT_XBOW:
1129         {
1130                 tmul = 3;
1131                 break;
1132         }
1133
1134         /* Heavy Crossbow and Bolt */
1135         case SV_HEAVY_XBOW:
1136         {
1137                 tmul = 4;
1138                 break;
1139         }
1140         }
1141
1142         return (tmul);
1143 }
1144
1145
1146 /*!
1147  * @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
1148  * @param shooter_ptr 射撃を行うクリーチャー参照ポインタ
1149  * @param plus_ammo 矢弾のダメージ修正
1150  * @param plus_bow 弓のダメージ修正
1151  * @return ダメージ期待値
1152  * @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。
1153  */
1154 HIT_POINT calc_crit_ratio_shot(player_type* shooter_ptr, HIT_POINT plus_ammo, HIT_POINT plus_bow)
1155 {
1156         HIT_POINT i;
1157         object_type *j_ptr = &shooter_ptr->inventory_list[INVEN_BOW];
1158
1159         /* Extract "shot" power */
1160         i = shooter_ptr->to_h_b + plus_ammo;
1161
1162         if (shooter_ptr->tval_ammo == TV_BOLT)
1163                 i = (shooter_ptr->skill_thb + (shooter_ptr->weapon_exp[0][j_ptr->sval] / 400 + i) * BTH_PLUS_ADJ);
1164         else
1165                 i = (shooter_ptr->skill_thb + ((shooter_ptr->weapon_exp[0][j_ptr->sval] - (WEAPON_EXP_MASTER / 2)) / 200 + i) * BTH_PLUS_ADJ);
1166
1167         /* Snipers can shot more critically with crossbows */
1168         if (shooter_ptr->concent) i += ((i * shooter_ptr->concent) / 5);
1169         if ((shooter_ptr->pclass == CLASS_SNIPER) && (shooter_ptr->tval_ammo == TV_BOLT)) i *= 2;
1170
1171         /* Good bow makes more critical */
1172         i += plus_bow * 8 * (shooter_ptr->concent ? shooter_ptr->concent + 5 : 5);
1173
1174         if (i < 0) i = 0;
1175
1176         return i;
1177 }
1178
1179 /*!
1180  * @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
1181  * @param weight 武器の重量
1182  * @param plus_ammo 矢弾のダメージ修正
1183  * @param plus_bow 弓のダメージ修正
1184  * @param dam 基本ダメージ量
1185  * @return ダメージ期待値
1186  */
1187 HIT_POINT calc_expect_crit_shot(player_type *shooter_ptr, WEIGHT weight, int plus_ammo, int plus_bow, HIT_POINT dam)
1188 {
1189         u32b num;
1190         int i, k, crit;
1191         i = calc_crit_ratio_shot(shooter_ptr, plus_ammo, plus_bow);
1192
1193         k = 0;
1194         num = 0;
1195
1196         crit = MIN(500, 900 / weight);
1197         num += dam * 3 / 2 * crit;
1198         k = crit;
1199
1200         crit = MIN(500, 1350 / weight);
1201         crit -= k;
1202         num += dam * 2 * crit;
1203         k += crit;
1204
1205         if (k < 500)
1206         {
1207                 crit = 500 - k;
1208                 num += dam * 3 * crit;
1209         }
1210
1211         num /= 500;
1212
1213         num *= i;
1214         num += (10000 - i) * dam;
1215         num /= 10000;
1216
1217         return num;
1218 }
1219
1220 /*!
1221  * @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
1222  * @param shooter_ptr プレーヤーへの参照ポインタ
1223  * @param weight 武器の重量
1224  * @param plus 武器のダメージ修正
1225  * @param dam 基本ダメージ
1226  * @param meichuu 命中値
1227  * @param dokubari 毒針処理か否か
1228  * @return ダメージ期待値
1229  */
1230 HIT_POINT calc_expect_crit(player_type *shooter_ptr, WEIGHT weight, int plus, HIT_POINT dam, s16b meichuu, bool dokubari)
1231 {
1232         u32b k, num;
1233         if (dokubari) return dam;
1234
1235         int i = (weight + (meichuu * 3 + plus * 5) + shooter_ptr->skill_thn);
1236         if (i < 0) i = 0;
1237
1238         k = weight;
1239         num = 0;
1240
1241         if (k < 400)                                            num += (2 * dam + 5) * (400 - k);
1242         if (k < 700)                                            num += (2 * dam + 10) * (MIN(700, k + 650) - MAX(400, k));
1243         if (k > (700 - 650) && k < 900)         num += (3 * dam + 15) * (MIN(900, k + 650) - MAX(700, k));
1244         if (k > (900 - 650) && k < 1300)                num += (3 * dam + 20) * (MIN(1300, k + 650) - MAX(900, k));
1245         if (k > (1300 - 650))                                   num += (7 * dam / 2 + 25) * MIN(650, k - (1300 - 650));
1246
1247         num /= 650;
1248         if (shooter_ptr->pclass == CLASS_NINJA)
1249         {
1250                 num *= i;
1251                 num += (4444 - i) * dam;
1252                 num /= 4444;
1253         }
1254         else
1255         {
1256                 num *= i;
1257                 num += (5000 - i) * dam;
1258                 num /= 5000;
1259         }
1260
1261         return num;
1262 }
1263