src/shoot.c

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