src/effect/effect-processor.c

   1 #include "effect/effect-processor.h"
   2 #include "core/stuff-handler.h"
   3 #include "effect/effect-characteristics.h"
   4 #include "effect/effect-feature.h"
   5 #include "effect/effect-item.h"
   6 #include "effect/effect-monster.h"
   7 #include "effect/effect-player.h"
   8 #include "effect/spells-effect-util.h"
   9 #include "floor/cave.h"
  10 #include "floor/line-of-sight.h"
  11 #include "game-option/special-options.h"
  12 #include "grid/feature-flag-types.h"
  13 #include "io/cursor.h"
  14 #include "io/screen-util.h"
  15 #include "main/sound-definitions-table.h"
  16 #include "main/sound-of-music.h"
  17 #include "monster-race/monster-race.h"
  18 #include "monster-race/race-flags2.h"
  19 #include "monster-race/race-indice-types.h"
  20 #include "monster/monster-describer.h"
  21 #include "monster/monster-description-types.h"
  22 #include "monster/monster-info.h"
  23 #include "pet/pet-fall-off.h"
  24 #include "spell/range-calc.h"
  25 #include "spell/spell-types.h"
  26 #include "system/floor-type-definition.h"
  27 #include "target/projection-path-calculator.h"
  28 #include "term/gameterm.h"
  29 #include "util/bit-flags-calculator.h"
  30 #include "view/display-messages.h"
  31
  32 /*!
  33  * @brief 配置した鏡リストの次を取得する /
  34  * Get another mirror. for SEEKER
  35  * @param next_y 次の鏡のy座標を返す参照ポインタ
  36  * @param next_x 次の鏡のx座標を返す参照ポインタ
  37  * @param cury 現在の鏡のy座標
  38  * @param curx 現在の鏡のx座標
  39  */
  40 static void next_mirror(player_type *creature_ptr, POSITION *next_y, POSITION *next_x, POSITION cury, POSITION curx)
  41 {
  42     POSITION mirror_x[10], mirror_y[10]; /* 鏡はもっと少ない */
  43     int mirror_num = 0; /* 鏡の数 */
  44     for (POSITION x = 0; x < creature_ptr->current_floor_ptr->width; x++) {
  45         for (POSITION y = 0; y < creature_ptr->current_floor_ptr->height; y++) {
  46             if (is_mirror_grid(&creature_ptr->current_floor_ptr->grid_array[y][x])) {
  47                 mirror_y[mirror_num] = y;
  48                 mirror_x[mirror_num] = x;
  49                 mirror_num++;
  50             }
  51         }
  52     }
  53
  54     if (mirror_num) {
  55         int num = randint0(mirror_num);
  56         *next_y = mirror_y[num];
  57         *next_x = mirror_x[num];
  58         return;
  59     }
  60
  61     *next_y = cury + randint0(5) - 2;
  62     *next_x = curx + randint0(5) - 2;
  63 }
  64
  65 /*!
  66  * todo 似たような処理が山ほど並んでいる、何とかならないものか
  67  * todo 引数にそのまま再代入していてカオスすぎる。直すのは簡単ではない
  68  * @brief 汎用的なビーム/ボルト/ボール系処理のルーチン Generic
  69  * "beam"/"bolt"/"ball" projection routine.
  70  * @param who 魔法を発動したモンスター(0ならばプレイヤー) / Index of "source"
  71  * monster (zero for "player")
  72  * @param rad 効果半径(ビーム/ボルト = 0 / ボール = 1以上) / Radius of explosion
  73  * (0 = beam/bolt, 1 to 9 = ball)
  74  * @param y 目標Y座標 / Target y location (or location to travel "towards")
  75  * @param x 目標X座標 / Target x location (or location to travel "towards")
  76  * @param dam 基本威力 / Base damage roll to apply to affected monsters (or
  77  * player)
  78  * @param typ 効果属性 / Type of damage to apply to monsters (and objects)
  79  * @param flag 効果フラグ / Extra bit flags (see PROJECT_xxxx)
  80  * @param monspell 効果元のモンスター魔法ID
  81  * @return 何か一つでも効力があればTRUEを返す / TRUE if any "effects" of the
  82  * projection were observed, else FALSE
  83  */
  84 bool project(player_type *caster_ptr, const MONSTER_IDX who, POSITION rad, POSITION y, POSITION x, const HIT_POINT dam, const EFFECT_ID typ, BIT_FLAGS flag,
  85     const int monspell)
  86 {
  87     int dist;
  88     POSITION y1;
  89     POSITION x1;
  90     POSITION y2;
  91     POSITION x2;
  92     POSITION y_saver;
  93     POSITION x_saver;
  94     int msec = delay_factor * delay_factor * delay_factor;
  95     bool notice = FALSE;
  96     bool visual = FALSE;
  97     bool drawn = FALSE;
  98     bool breath = FALSE;
  99     bool blind = caster_ptr->blind != 0;
 100     bool old_hide = FALSE;
 101     int path_n = 0;
 102     u16b path_g[512];
 103     int grids = 0;
 104     POSITION gx[1024];
 105     POSITION gy[1024];
 106     POSITION gm[32];
 107     POSITION gm_rad = rad;
 108     bool jump = FALSE;
 109     GAME_TEXT who_name[MAX_NLEN];
 110     bool see_s_msg = TRUE;
 111     who_name[0] = '\0';
 112     rakubadam_p = 0;
 113     rakubadam_m = 0;
 114     monster_target_y = caster_ptr->y;
 115     monster_target_x = caster_ptr->x;
 116
 117     if (flag & (PROJECT_JUMP)) {
 118         x1 = x;
 119         y1 = y;
 120         flag &= ~(PROJECT_JUMP);
 121         jump = TRUE;
 122     } else if (who <= 0) {
 123         x1 = caster_ptr->x;
 124         y1 = caster_ptr->y;
 125     } else if (who > 0) {
 126         x1 = caster_ptr->current_floor_ptr->m_list[who].fx;
 127         y1 = caster_ptr->current_floor_ptr->m_list[who].fy;
 128         monster_desc(caster_ptr, who_name, &caster_ptr->current_floor_ptr->m_list[who], MD_WRONGDOER_NAME);
 129     } else {
 130         x1 = x;
 131         y1 = y;
 132     }
 133
 134     y_saver = y1;
 135     x_saver = x1;
 136     y2 = y;
 137     x2 = x;
 138
 139     if (flag & (PROJECT_THRU)) {
 140         if ((x1 == x2) && (y1 == y2)) {
 141             flag &= ~(PROJECT_THRU);
 142         }
 143     }
 144
 145     if (rad < 0) {
 146         rad = 0 - rad;
 147         breath = TRUE;
 148         if (flag & PROJECT_HIDE)
 149             old_hide = TRUE;
 150         flag |= PROJECT_HIDE;
 151     }
 152
 153     for (dist = 0; dist < 32; dist++)
 154         gm[dist] = 0;
 155
 156     y = y1;
 157     x = x1;
 158     dist = 0;
 159     if (flag & (PROJECT_BEAM)) {
 160         gy[grids] = y;
 161         gx[grids] = x;
 162         grids++;
 163     }
 164
 165     switch (typ) {
 166     case GF_LITE:
 167     case GF_LITE_WEAK:
 168         if (breath || (flag & PROJECT_BEAM))
 169             flag |= (PROJECT_LOS);
 170         break;
 171     case GF_DISINTEGRATE:
 172         flag |= (PROJECT_GRID);
 173         if (breath || (flag & PROJECT_BEAM))
 174             flag |= (PROJECT_DISI);
 175         break;
 176     }
 177
 178     /* Calculate the projection path */
 179     path_n = projection_path(caster_ptr, path_g, (project_length ? project_length : get_max_range(caster_ptr)), y1, x1, y2, x2, flag);
 180     handle_stuff(caster_ptr);
 181
 182     if (typ == GF_SEEKER) {
 183         int j;
 184         int last_i = 0;
 185         project_m_n = 0;
 186         project_m_x = 0;
 187         project_m_y = 0;
 188         for (int i = 0; i < path_n; ++i) {
 189             POSITION oy = y;
 190             POSITION ox = x;
 191             POSITION ny = get_grid_y(path_g[i]);
 192             POSITION nx = get_grid_x(path_g[i]);
 193             y = ny;
 194             x = nx;
 195             gy[grids] = y;
 196             gx[grids] = x;
 197             grids++;
 198
 199             if (!blind && !(flag & (PROJECT_HIDE))) {
 200                 if (panel_contains(y, x) && player_has_los_bold(caster_ptr, y, x)) {
 201                     u16b p = bolt_pict(oy, ox, y, x, typ);
 202                     TERM_COLOR a = PICT_A(p);
 203                     SYMBOL_CODE c = PICT_C(p);
 204                     print_rel(caster_ptr, c, a, y, x);
 205                     move_cursor_relative(y, x);
 206                     if (need_term_fresh()) {
 207                         term_fresh();
 208                         term_xtra(TERM_XTRA_DELAY, msec);
 209                         lite_spot(caster_ptr, y, x);
 210                         term_fresh();
 211                     }
 212                     if (flag & (PROJECT_BEAM)) {
 213                         p = bolt_pict(y, x, y, x, typ);
 214                         a = PICT_A(p);
 215                         c = PICT_C(p);
 216                         print_rel(caster_ptr, c, a, y, x);
 217                     }
 218
 219                     visual = TRUE;
 220                 } else if (visual) {
 221                     term_xtra(TERM_XTRA_DELAY, msec);
 222                 }
 223             }
 224
 225             if (affect_item(caster_ptr, 0, 0, y, x, dam, GF_SEEKER))
 226                 notice = TRUE;
 227             if (!is_mirror_grid(&caster_ptr->current_floor_ptr->grid_array[y][x]))
 228                 continue;
 229
 230             monster_target_y = y;
 231             monster_target_x = x;
 232             remove_mirror(caster_ptr, y, x);
 233             next_mirror(caster_ptr, &oy, &ox, y, x);
 234             path_n = i + projection_path(caster_ptr, &(path_g[i + 1]), (project_length ? project_length : get_max_range(caster_ptr)), y, x, oy, ox, flag);
 235             for (j = last_i; j <= i; j++) {
 236                 y = get_grid_y(path_g[j]);
 237                 x = get_grid_x(path_g[j]);
 238                 if (affect_monster(caster_ptr, 0, 0, y, x, dam, GF_SEEKER, flag, TRUE))
 239                     notice = TRUE;
 240                 if (!who && (project_m_n == 1) && !jump && (caster_ptr->current_floor_ptr->grid_array[project_m_y][project_m_x].m_idx > 0)) {
 241                     monster_type *m_ptr = &caster_ptr->current_floor_ptr->m_list[caster_ptr->current_floor_ptr->grid_array[project_m_y][project_m_x].m_idx];
 242                     if (m_ptr->ml) {
 243                         if (!caster_ptr->image)
 244                             monster_race_track(caster_ptr, m_ptr->ap_r_idx);
 245                         health_track(caster_ptr, caster_ptr->current_floor_ptr->grid_array[project_m_y][project_m_x].m_idx);
 246                     }
 247                 }
 248
 249                 (void)affect_feature(caster_ptr, 0, 0, y, x, dam, GF_SEEKER);
 250             }
 251
 252             last_i = i;
 253         }
 254
 255         for (int i = last_i; i < path_n; i++) {
 256             POSITION py, px;
 257             py = get_grid_y(path_g[i]);
 258             px = get_grid_x(path_g[i]);
 259             if (affect_monster(caster_ptr, 0, 0, py, px, dam, GF_SEEKER, flag, TRUE))
 260                 notice = TRUE;
 261             if (!who && (project_m_n == 1) && !jump) {
 262                 if (caster_ptr->current_floor_ptr->grid_array[project_m_y][project_m_x].m_idx > 0) {
 263                     monster_type *m_ptr = &caster_ptr->current_floor_ptr->m_list[caster_ptr->current_floor_ptr->grid_array[project_m_y][project_m_x].m_idx];
 264
 265                     if (m_ptr->ml) {
 266                         if (!caster_ptr->image)
 267                             monster_race_track(caster_ptr, m_ptr->ap_r_idx);
 268                         health_track(caster_ptr, caster_ptr->current_floor_ptr->grid_array[project_m_y][project_m_x].m_idx);
 269                     }
 270                 }
 271             }
 272
 273             (void)affect_feature(caster_ptr, 0, 0, py, px, dam, GF_SEEKER);
 274         }
 275
 276         return notice;
 277     } else if (typ == GF_SUPER_RAY) {
 278         int j;
 279         int second_step = 0;
 280         project_m_n = 0;
 281         project_m_x = 0;
 282         project_m_y = 0;
 283         for (int i = 0; i < path_n; ++i) {
 284             POSITION oy = y;
 285             POSITION ox = x;
 286             POSITION ny = get_grid_y(path_g[i]);
 287             POSITION nx = get_grid_x(path_g[i]);
 288             y = ny;
 289             x = nx;
 290             gy[grids] = y;
 291             gx[grids] = x;
 292             grids++;
 293             {
 294                 if (panel_contains(y, x) && player_has_los_bold(caster_ptr, y, x)) {
 295                     u16b p;
 296                     TERM_COLOR a;
 297                     SYMBOL_CODE c;
 298                     p = bolt_pict(oy, ox, y, x, typ);
 299                     a = PICT_A(p);
 300                     c = PICT_C(p);
 301                     print_rel(caster_ptr, c, a, y, x);
 302                     move_cursor_relative(y, x);
 303                     term_fresh();
 304                     term_xtra(TERM_XTRA_DELAY, msec);
 305                     lite_spot(caster_ptr, y, x);
 306                     term_fresh();
 307                     if (flag & (PROJECT_BEAM)) {
 308                         p = bolt_pict(y, x, y, x, typ);
 309                         a = PICT_A(p);
 310                         c = PICT_C(p);
 311                         print_rel(caster_ptr, c, a, y, x);
 312                     }
 313
 314                     visual = TRUE;
 315                 } else if (visual) {
 316                     term_xtra(TERM_XTRA_DELAY, msec);
 317                 }
 318             }
 319
 320             if (affect_item(caster_ptr, 0, 0, y, x, dam, GF_SUPER_RAY))
 321                 notice = TRUE;
 322             if (!cave_has_flag_bold(caster_ptr->current_floor_ptr, y, x, FF_PROJECT)) {
 323                 if (second_step)
 324                     continue;
 325                 break;
 326             }
 327
 328             if (is_mirror_grid(&caster_ptr->current_floor_ptr->grid_array[y][x]) && !second_step) {
 329                 monster_target_y = y;
 330                 monster_target_x = x;
 331                 remove_mirror(caster_ptr, y, x);
 332                 for (j = 0; j <= i; j++) {
 333                     y = get_grid_y(path_g[j]);
 334                     x = get_grid_x(path_g[j]);
 335                     (void)affect_feature(caster_ptr, 0, 0, y, x, dam, GF_SUPER_RAY);
 336                 }
 337
 338                 path_n = i;
 339                 second_step = i + 1;
 340                 path_n += projection_path(
 341                     caster_ptr, &(path_g[path_n + 1]), (project_length ? project_length : get_max_range(caster_ptr)), y, x, y - 1, x - 1, flag);
 342                 path_n
 343                     += projection_path(caster_ptr, &(path_g[path_n + 1]), (project_length ? project_length : get_max_range(caster_ptr)), y, x, y - 1, x, flag);
 344                 path_n += projection_path(
 345                     caster_ptr, &(path_g[path_n + 1]), (project_length ? project_length : get_max_range(caster_ptr)), y, x, y - 1, x + 1, flag);
 346                 path_n
 347                     += projection_path(caster_ptr, &(path_g[path_n + 1]), (project_length ? project_length : get_max_range(caster_ptr)), y, x, y, x - 1, flag);
 348                 path_n
 349                     += projection_path(caster_ptr, &(path_g[path_n + 1]), (project_length ? project_length : get_max_range(caster_ptr)), y, x, y, x + 1, flag);
 350                 path_n += projection_path(
 351                     caster_ptr, &(path_g[path_n + 1]), (project_length ? project_length : get_max_range(caster_ptr)), y, x, y + 1, x - 1, flag);
 352                 path_n
 353                     += projection_path(caster_ptr, &(path_g[path_n + 1]), (project_length ? project_length : get_max_range(caster_ptr)), y, x, y + 1, x, flag);
 354                 path_n += projection_path(
 355                     caster_ptr, &(path_g[path_n + 1]), (project_length ? project_length : get_max_range(caster_ptr)), y, x, y + 1, x + 1, flag);
 356             }
 357         }
 358
 359         for (int i = 0; i < path_n; i++) {
 360             POSITION py = get_grid_y(path_g[i]);
 361             POSITION px = get_grid_x(path_g[i]);
 362             (void)affect_monster(caster_ptr, 0, 0, py, px, dam, GF_SUPER_RAY, flag, TRUE);
 363             if (!who && (project_m_n == 1) && !jump) {
 364                 if (caster_ptr->current_floor_ptr->grid_array[project_m_y][project_m_x].m_idx > 0) {
 365                     monster_type *m_ptr = &caster_ptr->current_floor_ptr->m_list[caster_ptr->current_floor_ptr->grid_array[project_m_y][project_m_x].m_idx];
 366
 367                     if (m_ptr->ml) {
 368                         if (!caster_ptr->image)
 369                             monster_race_track(caster_ptr, m_ptr->ap_r_idx);
 370                         health_track(caster_ptr, caster_ptr->current_floor_ptr->grid_array[project_m_y][project_m_x].m_idx);
 371                     }
 372                 }
 373             }
 374
 375             (void)affect_feature(caster_ptr, 0, 0, py, px, dam, GF_SUPER_RAY);
 376         }
 377
 378         return notice;
 379     }
 380
 381     int k;
 382     for (k = 0; k < path_n; ++k) {
 383         POSITION oy = y;
 384         POSITION ox = x;
 385         POSITION ny = get_grid_y(path_g[k]);
 386         POSITION nx = get_grid_x(path_g[k]);
 387         if (flag & PROJECT_DISI) {
 388             if (cave_stop_disintegration(caster_ptr->current_floor_ptr, ny, nx) && (rad > 0))
 389                 break;
 390         } else if (flag & PROJECT_LOS) {
 391             if (!cave_los_bold(caster_ptr->current_floor_ptr, ny, nx) && (rad > 0))
 392                 break;
 393         } else {
 394             if (!cave_has_flag_bold(caster_ptr->current_floor_ptr, ny, nx, FF_PROJECT) && (rad > 0))
 395                 break;
 396         }
 397
 398         y = ny;
 399         x = nx;
 400         if (flag & (PROJECT_BEAM)) {
 401             gy[grids] = y;
 402             gx[grids] = x;
 403             grids++;
 404         }
 405
 406         if (!blind && !(flag & (PROJECT_HIDE | PROJECT_FAST))) {
 407             if (panel_contains(y, x) && player_has_los_bold(caster_ptr, y, x)) {
 408                 u16b p;
 409                 TERM_COLOR a;
 410                 SYMBOL_CODE c;
 411                 p = bolt_pict(oy, ox, y, x, typ);
 412                 a = PICT_A(p);
 413                 c = PICT_C(p);
 414                 print_rel(caster_ptr, c, a, y, x);
 415                 move_cursor_relative(y, x);
 416                 term_fresh();
 417                 term_xtra(TERM_XTRA_DELAY, msec);
 418                 lite_spot(caster_ptr, y, x);
 419                 term_fresh();
 420                 if (flag & (PROJECT_BEAM)) {
 421                     p = bolt_pict(y, x, y, x, typ);
 422                     a = PICT_A(p);
 423                     c = PICT_C(p);
 424                     print_rel(caster_ptr, c, a, y, x);
 425                 }
 426
 427                 visual = TRUE;
 428             } else if (visual) {
 429                 term_xtra(TERM_XTRA_DELAY, msec);
 430             }
 431         }
 432     }
 433
 434     path_n = k;
 435     POSITION by = y;
 436     POSITION bx = x;
 437     if (breath && !path_n) {
 438         breath = FALSE;
 439         gm_rad = rad;
 440         if (!old_hide) {
 441             flag &= ~(PROJECT_HIDE);
 442         }
 443     }
 444
 445     gm[0] = 0;
 446     gm[1] = grids;
 447     dist = path_n;
 448     int dist_hack = dist;
 449     project_length = 0;
 450
 451     /* If we found a "target", explode there */
 452     if (dist <= get_max_range(caster_ptr)) {
 453         if ((flag & (PROJECT_BEAM)) && (grids > 0))
 454             grids--;
 455
 456         /*
 457          * Create a conical breath attack
 458          *
 459          *       ***
 460          *   ********
 461          * D********@**
 462          *   ********
 463          *       ***
 464          */
 465         if (breath) {
 466             flag &= ~(PROJECT_HIDE);
 467             breath_shape(caster_ptr, path_g, dist, &grids, gx, gy, gm, &gm_rad, rad, y1, x1, by, bx, typ);
 468         } else {
 469             for (dist = 0; dist <= rad; dist++) {
 470                 for (y = by - dist; y <= by + dist; y++) {
 471                     for (x = bx - dist; x <= bx + dist; x++) {
 472                         if (!in_bounds2(caster_ptr->current_floor_ptr, y, x))
 473                             continue;
 474                         if (distance(by, bx, y, x) != dist)
 475                             continue;
 476
 477                         switch (typ) {
 478                         case GF_LITE:
 479                         case GF_LITE_WEAK:
 480                             if (!los(caster_ptr, by, bx, y, x))
 481                                 continue;
 482                             break;
 483                         case GF_DISINTEGRATE:
 484                             if (!in_disintegration_range(caster_ptr->current_floor_ptr, by, bx, y, x))
 485                                 continue;
 486                             break;
 487                         default:
 488                             if (!projectable(caster_ptr, by, bx, y, x))
 489                                 continue;
 490                             break;
 491                         }
 492
 493                         gy[grids] = y;
 494                         gx[grids] = x;
 495                         grids++;
 496                     }
 497                 }
 498
 499                 gm[dist + 1] = grids;
 500             }
 501         }
 502     }
 503
 504     if (!grids)
 505         return FALSE;
 506
 507     if (!blind && !(flag & (PROJECT_HIDE))) {
 508         for (int t = 0; t <= gm_rad; t++) {
 509             for (int i = gm[t]; i < gm[t + 1]; i++) {
 510                 y = gy[i];
 511                 x = gx[i];
 512                 if (panel_contains(y, x) && player_has_los_bold(caster_ptr, y, x)) {
 513                     u16b p;
 514                     TERM_COLOR a;
 515                     SYMBOL_CODE c;
 516                     drawn = TRUE;
 517                     p = bolt_pict(y, x, y, x, typ);
 518                     a = PICT_A(p);
 519                     c = PICT_C(p);
 520                     print_rel(caster_ptr, c, a, y, x);
 521                 }
 522             }
 523
 524             move_cursor_relative(by, bx);
 525
 526             if (need_term_fresh())
 527                 term_fresh();
 528             if (visual || drawn) {
 529                 term_xtra(TERM_XTRA_DELAY, msec);
 530             }
 531         }
 532
 533         if (drawn) {
 534             for (int i = 0; i < grids; i++) {
 535                 y = gy[i];
 536                 x = gx[i];
 537                 if (panel_contains(y, x) && player_has_los_bold(caster_ptr, y, x)) {
 538                     lite_spot(caster_ptr, y, x);
 539                 }
 540             }
 541
 542             move_cursor_relative(by, bx);
 543             if (need_term_fresh())
 544                 term_fresh();
 545         }
 546     }
 547
 548     update_creature(caster_ptr);
 549
 550     if (flag & PROJECT_KILL) {
 551         see_s_msg = (who > 0) ? is_seen(caster_ptr, &caster_ptr->current_floor_ptr->m_list[who])
 552                               : (!who ? TRUE : (player_can_see_bold(caster_ptr, y1, x1) && projectable(caster_ptr, caster_ptr->y, caster_ptr->x, y1, x1)));
 553     }
 554
 555     if (flag & (PROJECT_GRID)) {
 556         dist = 0;
 557         for (int i = 0; i < grids; i++) {
 558             if (gm[dist + 1] == i)
 559                 dist++;
 560             y = gy[i];
 561             x = gx[i];
 562             if (breath) {
 563                 int d = dist_to_line(y, x, y1, x1, by, bx);
 564                 if (affect_feature(caster_ptr, who, d, y, x, dam, typ))
 565                     notice = TRUE;
 566             } else {
 567                 if (affect_feature(caster_ptr, who, dist, y, x, dam, typ))
 568                     notice = TRUE;
 569             }
 570         }
 571     }
 572
 573     update_creature(caster_ptr);
 574     if (flag & (PROJECT_ITEM)) {
 575         dist = 0;
 576         for (int i = 0; i < grids; i++) {
 577             if (gm[dist + 1] == i)
 578                 dist++;
 579
 580             y = gy[i];
 581             x = gx[i];
 582             if (breath) {
 583                 int d = dist_to_line(y, x, y1, x1, by, bx);
 584                 if (affect_item(caster_ptr, who, d, y, x, dam, typ))
 585                     notice = TRUE;
 586             } else {
 587                 if (affect_item(caster_ptr, who, dist, y, x, dam, typ))
 588                     notice = TRUE;
 589             }
 590         }
 591     }
 592
 593     if (flag & (PROJECT_KILL)) {
 594         project_m_n = 0;
 595         project_m_x = 0;
 596         project_m_y = 0;
 597         dist = 0;
 598         for (int i = 0; i < grids; i++) {
 599             int effective_dist;
 600             if (gm[dist + 1] == i)
 601                 dist++;
 602
 603             y = gy[i];
 604             x = gx[i];
 605             if (grids <= 1) {
 606                 monster_type *m_ptr = &caster_ptr->current_floor_ptr->m_list[caster_ptr->current_floor_ptr->grid_array[y][x].m_idx];
 607                 monster_race *ref_ptr = &r_info[m_ptr->r_idx];
 608                 if ((flag & PROJECT_REFLECTABLE) && caster_ptr->current_floor_ptr->grid_array[y][x].m_idx && (ref_ptr->flags2 & RF2_REFLECTING)
 609                     && ((caster_ptr->current_floor_ptr->grid_array[y][x].m_idx != caster_ptr->riding) || !(flag & PROJECT_PLAYER)) && (!who || dist_hack > 1)
 610                     && !one_in_(10)) {
 611                     POSITION t_y, t_x;
 612                     int max_attempts = 10;
 613                     do {
 614                         t_y = y_saver - 1 + randint1(3);
 615                         t_x = x_saver - 1 + randint1(3);
 616                         max_attempts--;
 617                     } while (max_attempts && in_bounds2u(caster_ptr->current_floor_ptr, t_y, t_x) && !projectable(caster_ptr, y, x, t_y, t_x));
 618
 619                     if (max_attempts < 1) {
 620                         t_y = y_saver;
 621                         t_x = x_saver;
 622                     }
 623
 624                     sound(SOUND_REFLECT);
 625                     if (is_seen(caster_ptr, m_ptr)) {
 626                         if ((m_ptr->r_idx == MON_KENSHIROU) || (m_ptr->r_idx == MON_RAOU))
 627                             msg_print(_("「北斗神拳奥義・二指真空把！」", "The attack bounces!"));
 628                         else if (m_ptr->r_idx == MON_DIO)
 629                             msg_print(_("ディオ・ブランドーは指一本で攻撃を弾き返した！", "The attack bounces!"));
 630                         else
 631                             msg_print(_("攻撃は跳ね返った！", "The attack bounces!"));
 632                     }
 633
 634                     if (is_original_ap_and_seen(caster_ptr, m_ptr))
 635                         ref_ptr->r_flags2 |= RF2_REFLECTING;
 636
 637                     if (player_bold(caster_ptr, y, x) || one_in_(2))
 638                         flag &= ~(PROJECT_PLAYER);
 639                     else
 640                         flag |= PROJECT_PLAYER;
 641
 642                     project(caster_ptr, caster_ptr->current_floor_ptr->grid_array[y][x].m_idx, 0, t_y, t_x, dam, typ, flag, monspell);
 643                     continue;
 644                 }
 645             }
 646
 647             /* Find the closest point in the blast */
 648             if (breath) {
 649                 effective_dist = dist_to_line(y, x, y1, x1, by, bx);
 650             } else {
 651                 effective_dist = dist;
 652             }
 653
 654             if (caster_ptr->riding && player_bold(caster_ptr, y, x)) {
 655                 if (flag & PROJECT_PLAYER) {
 656                     if (flag & (PROJECT_BEAM | PROJECT_REFLECTABLE | PROJECT_AIMED)) {
 657                         /*
 658                          * A beam or bolt is well aimed
 659                          * at the PLAYER!
 660                          * So don't affects the mount.
 661                          */
 662                         continue;
 663                     } else {
 664                         /*
 665                          * The spell is not well aimed,
 666                          * So partly affect the mount too.
 667                          */
 668                         effective_dist++;
 669                     }
 670                 }
 671
 672                 /*
 673                  * This grid is the original target.
 674                  * Or aimed on your horse.
 675                  */
 676                 else if (((y == y2) && (x == x2)) || (flag & PROJECT_AIMED)) {
 677                     /* Hit the mount with full damage */
 678                 }
 679
 680                 /*
 681                  * Otherwise this grid is not the
 682                  * original target, it means that line
 683                  * of fire is obstructed by this
 684                  * monster.
 685                  */
 686                 /*
 687                  * A beam or bolt will hit either
 688                  * player or mount.  Choose randomly.
 689                  */
 690                 else if (flag & (PROJECT_BEAM | PROJECT_REFLECTABLE)) {
 691                     if (one_in_(2)) {
 692                         /* Hit the mount with full damage */
 693                     } else {
 694                         flag |= PROJECT_PLAYER;
 695                         continue;
 696                     }
 697                 }
 698
 699                 /*
 700                  * The spell is not well aimed, so
 701                  * partly affect both player and
 702                  * mount.
 703                  */
 704                 else {
 705                     effective_dist++;
 706                 }
 707             }
 708
 709             if (affect_monster(caster_ptr, who, effective_dist, y, x, dam, typ, flag, see_s_msg))
 710                 notice = TRUE;
 711         }
 712
 713         /* Player affected one monster (without "jumping") */
 714         if (!who && (project_m_n == 1) && !jump) {
 715             x = project_m_x;
 716             y = project_m_y;
 717             if (caster_ptr->current_floor_ptr->grid_array[y][x].m_idx > 0) {
 718                 monster_type *m_ptr = &caster_ptr->current_floor_ptr->m_list[caster_ptr->current_floor_ptr->grid_array[y][x].m_idx];
 719
 720                 if (m_ptr->ml) {
 721                     if (!caster_ptr->image)
 722                         monster_race_track(caster_ptr, m_ptr->ap_r_idx);
 723                     health_track(caster_ptr, caster_ptr->current_floor_ptr->grid_array[y][x].m_idx);
 724                 }
 725             }
 726         }
 727     }
 728
 729     if (flag & (PROJECT_KILL)) {
 730         dist = 0;
 731         for (int i = 0; i < grids; i++) {
 732             int effective_dist;
 733             if (gm[dist + 1] == i)
 734                 dist++;
 735
 736             y = gy[i];
 737             x = gx[i];
 738             if (!player_bold(caster_ptr, y, x))
 739                 continue;
 740
 741             /* Find the closest point in the blast */
 742             if (breath) {
 743                 effective_dist = dist_to_line(y, x, y1, x1, by, bx);
 744             } else {
 745                 effective_dist = dist;
 746             }
 747
 748             if (caster_ptr->riding) {
 749                 if (flag & PROJECT_PLAYER) {
 750                     /* Hit the player with full damage */
 751                 }
 752
 753                 /*
 754                  * Hack -- When this grid was not the
 755                  * original target, a beam or bolt
 756                  * would hit either player or mount,
 757                  * and should be choosen randomly.
 758                  *
 759                  * But already choosen to hit the
 760                  * mount at this point.
 761                  *
 762                  * Or aimed on your horse.
 763                  */
 764                 else if (flag & (PROJECT_BEAM | PROJECT_REFLECTABLE | PROJECT_AIMED)) {
 765                     /*
 766                      * A beam or bolt is well aimed
 767                      * at the mount!
 768                      * So don't affects the player.
 769                      */
 770                     continue;
 771                 } else {
 772                     /*
 773                      * The spell is not well aimed,
 774                      * So partly affect the player too.
 775                      */
 776                     effective_dist++;
 777                 }
 778             }
 779
 780             if (affect_player(who, caster_ptr, who_name, effective_dist, y, x, dam, typ, flag, monspell, project))
 781                 notice = TRUE;
 782         }
 783     }
 784
 785     if (caster_ptr->riding) {
 786         GAME_TEXT m_name[MAX_NLEN];
 787         monster_desc(caster_ptr, m_name, &caster_ptr->current_floor_ptr->m_list[caster_ptr->riding], 0);
 788         if (rakubadam_m > 0) {
 789             if (process_fall_off_horse(caster_ptr, rakubadam_m, FALSE)) {
 790                 msg_format(_("%^sに振り落とされた！", "%^s has thrown you off!"), m_name);
 791             }
 792         }
 793
 794         if (caster_ptr->riding && rakubadam_p > 0) {
 795             if (process_fall_off_horse(caster_ptr, rakubadam_p, FALSE)) {
 796                 msg_format(_("%^sから落ちてしまった！", "You have fallen from %s."), m_name);
 797             }
 798         }
 799     }
 800
 801     return (notice);
 802 }