src/specific-object/torch.c

   1 #include "specific-object/torch.h"
   2 #include "core/player-update-types.h"
   3 #include "dungeon/dungeon-flag-types.h"
   4 #include "dungeon/dungeon.h"
   5 #include "floor/cave.h"
   6 #include "inventory/inventory-slot-types.h"
   7 #include "mind/mind-ninja.h"
   8 #include "object-enchant/object-ego.h"
   9 #include "object-enchant/tr-types.h"
  10 #include "object/object-flags.h"
  11 #include "player/special-defense-types.h"
  12 #include "system/floor-type-definition.h"
  13 #include "sv-definition/sv-lite-types.h"
  14 #include "util/bit-flags-calculator.h"
  15
  16 /*!
  17  * @brief 投擲時たいまつに投げやすい/焼棄/アンデッドスレイの特別効果を返す。
  18  * Torches have special abilities when they are flaming.
  19  * @param o_ptr 投擲するオブジェクトの構造体参照ポインタ
  20  * @param flgs 特別に追加するフラグを返す参照ポインタ
  21  * @return なし
  22  */
  23 void torch_flags(object_type *o_ptr, BIT_FLAGS *flgs)
  24 {
  25     if ((o_ptr->tval != TV_LITE) || (o_ptr->sval != SV_LITE_TORCH) || (o_ptr->xtra4 <= 0))
  26         return;
  27
  28     add_flag(flgs, TR_BRAND_FIRE);
  29     add_flag(flgs, TR_KILL_UNDEAD);
  30     add_flag(flgs, TR_THROW);
  31 }
  32
  33 /*!
  34  * @brief 投擲時たいまつにダイスを与える。
  35  * Torches have special abilities when they are flaming.
  36  * @param o_ptr 投擲するオブジェクトの構造体参照ポインタ
  37  * @param dd 特別なダイス数を返す参照ポインタ
  38  * @param ds 特別なダイス面数を返す参照ポインタ
  39  * @return なし
  40  */
  41 void torch_dice(object_type *o_ptr, DICE_NUMBER *dd, DICE_SID *ds)
  42 {
  43     if ((o_ptr->tval != TV_LITE) || (o_ptr->sval != SV_LITE_TORCH) || (o_ptr->xtra4 <= 0))
  44         return;
  45
  46     *dd = 1;
  47     *ds = 6;
  48 }
  49
  50 /*!
  51  * @brief 投擲時命中したたいまつの寿命を縮める。
  52  * Torches have special abilities when they are flaming.
  53  * @param o_ptr 投擲するオブジェクトの構造体参照ポインタ
  54  * @return なし
  55  */
  56 void torch_lost_fuel(object_type *o_ptr)
  57 {
  58     if ((o_ptr->tval != TV_LITE) || (o_ptr->sval != SV_LITE_TORCH))
  59         return;
  60
  61     o_ptr->xtra4 -= (FUEL_TORCH / 25);
  62     if (o_ptr->xtra4 < 0)
  63         o_ptr->xtra4 = 0;
  64 }
  65
  66 /*!
  67  * @brief プレイヤーの光源半径を計算する / Extract and set the current "lite radius"
  68  * @return なし
  69  * @details
  70  * SWD: Experimental modification: multiple light sources have additive effect.
  71  */
  72 void update_lite_radius(player_type *creature_ptr)
  73 {
  74     creature_ptr->cur_lite = 0;
  75     for (int i = INVEN_MAIN_HAND; i < INVEN_TOTAL; i++) {
  76         object_type *o_ptr;
  77         o_ptr = &creature_ptr->inventory_list[i];
  78         BIT_FLAGS flgs[TR_FLAG_SIZE];
  79         object_flags(creature_ptr, o_ptr, flgs);
  80
  81         if (!o_ptr->k_idx)
  82             continue;
  83
  84         if (o_ptr->name2 == EGO_LITE_SHINE)
  85             creature_ptr->cur_lite++;
  86
  87         if (!has_flag(flgs, TR_DARK_SOURCE)) {
  88             if (o_ptr->tval == TV_LITE) {
  89                 if ((o_ptr->sval == SV_LITE_TORCH) && !(o_ptr->xtra4 > 0))
  90                     continue;
  91
  92                 if ((o_ptr->sval == SV_LITE_LANTERN) && !(o_ptr->xtra4 > 0))
  93                     continue;
  94             }
  95         }
  96
  97
  98         POSITION rad = 0;
  99         if (has_flag(flgs, TR_LITE_1) && !has_flag(flgs, TR_DARK_SOURCE))
 100             rad += 1;
 101
 102         if (has_flag(flgs, TR_LITE_2) && !has_flag(flgs, TR_DARK_SOURCE))
 103             rad += 2;
 104
 105         if (has_flag(flgs, TR_LITE_3) && !has_flag(flgs, TR_DARK_SOURCE))
 106             rad += 3;
 107
 108         if (has_flag(flgs, TR_LITE_M1))
 109             rad -= 1;
 110
 111         if (has_flag(flgs, TR_LITE_M2))
 112             rad -= 2;
 113
 114         if (has_flag(flgs, TR_LITE_M3))
 115             rad -= 3;
 116
 117         creature_ptr->cur_lite += rad;
 118     }
 119
 120     if (d_info[creature_ptr->dungeon_idx].flags1 & DF1_DARKNESS && creature_ptr->cur_lite > 1)
 121         creature_ptr->cur_lite = 1;
 122
 123     if (creature_ptr->cur_lite <= 0 && creature_ptr->lite)
 124         creature_ptr->cur_lite++;
 125
 126     if (creature_ptr->cur_lite > 14)
 127         creature_ptr->cur_lite = 14;
 128
 129     if (creature_ptr->cur_lite < 0)
 130         creature_ptr->cur_lite = 0;
 131
 132     if (creature_ptr->old_lite == creature_ptr->cur_lite)
 133         return;
 134
 135     creature_ptr->update |= PU_LITE | PU_MON_LITE | PU_MONSTERS;
 136     creature_ptr->old_lite = creature_ptr->cur_lite;
 137
 138     if ((creature_ptr->cur_lite > 0) && (creature_ptr->special_defense & NINJA_S_STEALTH))
 139         set_superstealth(creature_ptr, FALSE);
 140 }
 141
 142 /*
 143  * Update the set of grids "illuminated" by the player's lite.
 144  *
 145  * This routine needs to use the results of "update_view()"
 146  *
 147  * Note that "blindness" does NOT affect "torch lite".  Be careful!
 148  *
 149  * We optimize most lites (all non-artifact lites) by using "obvious"
 150  * facts about the results of "small" lite radius, and we attempt to
 151  * list the "nearby" grids before the more "distant" ones in the
 152  * array of torch-lit grids.
 153  *
 154  * We assume that "radius zero" lite is in fact no lite at all.
 155  *
 156  *     Torch     Lantern     Artifacts
 157  *     (etc)
 158  *                              ***
 159  *                 ***         *****
 160  *      ***       *****       *******
 161  *      *@*       **@**       ***@***
 162  *      ***       *****       *******
 163  *                 ***         *****
 164  *                              ***
 165  */
 166 void update_lite(player_type *subject_ptr)
 167 {
 168     POSITION p = subject_ptr->cur_lite;
 169     grid_type *g_ptr;
 170     floor_type *floor_ptr = subject_ptr->current_floor_ptr;
 171     for (int i = 0; i < floor_ptr->lite_n; i++) {
 172         POSITION y = floor_ptr->lite_y[i];
 173         POSITION x = floor_ptr->lite_x[i];
 174         floor_ptr->grid_array[y][x].info &= ~(CAVE_LITE);
 175         floor_ptr->grid_array[y][x].info |= CAVE_TEMP;
 176         tmp_pos.y[tmp_pos.n] = y;
 177         tmp_pos.x[tmp_pos.n] = x;
 178         tmp_pos.n++;
 179     }
 180
 181     floor_ptr->lite_n = 0;
 182     if (p >= 1) {
 183         cave_lite_hack(floor_ptr, subject_ptr->y, subject_ptr->x);
 184         cave_lite_hack(floor_ptr, subject_ptr->y + 1, subject_ptr->x);
 185         cave_lite_hack(floor_ptr, subject_ptr->y - 1, subject_ptr->x);
 186         cave_lite_hack(floor_ptr, subject_ptr->y, subject_ptr->x + 1);
 187         cave_lite_hack(floor_ptr, subject_ptr->y, subject_ptr->x - 1);
 188         cave_lite_hack(floor_ptr, subject_ptr->y + 1, subject_ptr->x + 1);
 189         cave_lite_hack(floor_ptr, subject_ptr->y + 1, subject_ptr->x - 1);
 190         cave_lite_hack(floor_ptr, subject_ptr->y - 1, subject_ptr->x + 1);
 191         cave_lite_hack(floor_ptr, subject_ptr->y - 1, subject_ptr->x - 1);
 192     }
 193
 194     if (p >= 2) {
 195         if (cave_los_bold(floor_ptr, subject_ptr->y + 1, subject_ptr->x)) {
 196             cave_lite_hack(floor_ptr, subject_ptr->y + 2, subject_ptr->x);
 197             cave_lite_hack(floor_ptr, subject_ptr->y + 2, subject_ptr->x + 1);
 198             cave_lite_hack(floor_ptr, subject_ptr->y + 2, subject_ptr->x - 1);
 199         }
 200
 201         if (cave_los_bold(floor_ptr, subject_ptr->y - 1, subject_ptr->x)) {
 202             cave_lite_hack(floor_ptr, subject_ptr->y - 2, subject_ptr->x);
 203             cave_lite_hack(floor_ptr, subject_ptr->y - 2, subject_ptr->x + 1);
 204             cave_lite_hack(floor_ptr, subject_ptr->y - 2, subject_ptr->x - 1);
 205         }
 206
 207         if (cave_los_bold(floor_ptr, subject_ptr->y, subject_ptr->x + 1)) {
 208             cave_lite_hack(floor_ptr, subject_ptr->y, subject_ptr->x + 2);
 209             cave_lite_hack(floor_ptr, subject_ptr->y + 1, subject_ptr->x + 2);
 210             cave_lite_hack(floor_ptr, subject_ptr->y - 1, subject_ptr->x + 2);
 211         }
 212
 213         if (cave_los_bold(floor_ptr, subject_ptr->y, subject_ptr->x - 1)) {
 214             cave_lite_hack(floor_ptr, subject_ptr->y, subject_ptr->x - 2);
 215             cave_lite_hack(floor_ptr, subject_ptr->y + 1, subject_ptr->x - 2);
 216             cave_lite_hack(floor_ptr, subject_ptr->y - 1, subject_ptr->x - 2);
 217         }
 218     }
 219
 220     if (p >= 3) {
 221         int d;
 222         if (p > 14)
 223             p = 14;
 224
 225         if (cave_los_bold(floor_ptr, subject_ptr->y + 1, subject_ptr->x + 1))
 226             cave_lite_hack(floor_ptr, subject_ptr->y + 2, subject_ptr->x + 2);
 227
 228         if (cave_los_bold(floor_ptr, subject_ptr->y + 1, subject_ptr->x - 1))
 229             cave_lite_hack(floor_ptr, subject_ptr->y + 2, subject_ptr->x - 2);
 230
 231         if (cave_los_bold(floor_ptr, subject_ptr->y - 1, subject_ptr->x + 1))
 232             cave_lite_hack(floor_ptr, subject_ptr->y - 2, subject_ptr->x + 2);
 233
 234         if (cave_los_bold(floor_ptr, subject_ptr->y - 1, subject_ptr->x - 1))
 235             cave_lite_hack(floor_ptr, subject_ptr->y - 2, subject_ptr->x - 2);
 236
 237         POSITION min_y = subject_ptr->y - p;
 238         if (min_y < 0)
 239             min_y = 0;
 240
 241         POSITION max_y = subject_ptr->y + p;
 242         if (max_y > floor_ptr->height - 1)
 243             max_y = floor_ptr->height - 1;
 244
 245         POSITION min_x = subject_ptr->x - p;
 246         if (min_x < 0)
 247             min_x = 0;
 248
 249         POSITION max_x = subject_ptr->x + p;
 250         if (max_x > floor_ptr->width - 1)
 251             max_x = floor_ptr->width - 1;
 252
 253         for (POSITION y = min_y; y <= max_y; y++) {
 254             for (POSITION x = min_x; x <= max_x; x++) {
 255                 int dy = (subject_ptr->y > y) ? (subject_ptr->y - y) : (y - subject_ptr->y);
 256                 int dx = (subject_ptr->x > x) ? (subject_ptr->x - x) : (x - subject_ptr->x);
 257                 if ((dy <= 2) && (dx <= 2))
 258                     continue;
 259
 260                 d = (dy > dx) ? (dy + (dx >> 1)) : (dx + (dy >> 1));
 261                 if (d > p)
 262                     continue;
 263
 264                 if (floor_ptr->grid_array[y][x].info & CAVE_VIEW)
 265                     cave_lite_hack(floor_ptr, y, x);
 266             }
 267         }
 268     }
 269
 270     for (int i = 0; i < floor_ptr->lite_n; i++) {
 271         POSITION y = floor_ptr->lite_y[i];
 272         POSITION x = floor_ptr->lite_x[i];
 273         g_ptr = &floor_ptr->grid_array[y][x];
 274         if (g_ptr->info & CAVE_TEMP)
 275             continue;
 276
 277         cave_note_and_redraw_later(floor_ptr, g_ptr, y, x);
 278     }
 279
 280     for (int i = 0; i < tmp_pos.n; i++) {
 281         POSITION y = tmp_pos.y[i];
 282         POSITION x = tmp_pos.x[i];
 283         g_ptr = &floor_ptr->grid_array[y][x];
 284         g_ptr->info &= ~(CAVE_TEMP);
 285         if (g_ptr->info & CAVE_LITE)
 286             continue;
 287
 288         cave_redraw_later(floor_ptr, g_ptr, y, x);
 289     }
 290
 291     tmp_pos.n = 0;
 292     subject_ptr->update |= PU_DELAY_VIS;
 293 }