src/save/save.cpp

   1 /*!
   2  * @file save.c
   3  * @brief セーブファイル書き込み処理 / Purpose: interact with savefiles
   4  * @date 2014/07/12
   5  * @author
   6  * <pre>
   7  * Copyright (c) 1997 Ben Harrison, James E. Wilson, Robert A. Koeneke
   8  * This software may be copied and distributed for educational, research,
   9  * and not for profit purposes provided that this copyright and statement
  10  * are included in all such copies.  Other copyrights may also apply.
  11  * </pre>
  12  */
  13
  14 #include "save/save.h"
  15 #include "core/object-compressor.h"
  16 #include "dungeon/quest.h"
  17 #include "floor/floor-town.h"
  18 #include "floor/wild.h"
  19 #include "game-option/text-display-options.h"
  20 #include "inventory/inventory-slot-types.h"
  21 #include "io/files-util.h"
  22 #include "io/report.h"
  23 #include "io/uid-checker.h"
  24 #include "monster-race/monster-race.h"
  25 #include "monster/monster-compaction.h"
  26 #include "monster/monster-status.h"
  27 #include "player/player-status.h"
  28 #include "save/floor-writer.h"
  29 #include "save/info-writer.h"
  30 #include "save/item-writer.h"
  31 #include "save/monster-writer.h"
  32 #include "save/player-writer.h"
  33 #include "save/save-util.h"
  34 #include "store/store-owners.h"
  35 #include "store/store-util.h"
  36 #include "system/angband-version.h"
  37 #include "system/artifact-type-definition.h"
  38 #include "system/baseitem-info.h"
  39 #include "system/item-entity.h"
  40 #include "system/monster-race-info.h"
  41 #include "system/player-type-definition.h"
  42 #include "util/angband-files.h"
  43 #include "view/display-messages.h"
  44 #include "world/world.h"
  45 #include <algorithm>
  46
  47 /*!
  48  * @brief セーブデータの書き込み /
  49  * Actually write a save-file
  50  * @param player_ptr プレイヤーへの参照ポインタ
  51  * @return 成功すればtrue
  52  */
  53 static bool wr_savefile_new(PlayerType *player_ptr, SaveType type)
  54 {
  55     compact_objects(player_ptr, 0);
  56     compact_monsters(player_ptr, 0);
  57
  58     uint32_t now = (uint32_t)time((time_t *)0);
  59     w_ptr->sf_system = 0L;
  60     w_ptr->sf_when = now;
  61     w_ptr->sf_saves++;
  62
  63     save_xor_byte = 0;
  64     auto variant_length = VARIANT_NAME.length();
  65     wr_byte(static_cast<byte>(variant_length));
  66     for (auto i = 0U; i < variant_length; i++) {
  67         save_xor_byte = 0;
  68         wr_byte(VARIANT_NAME[i]);
  69     }
  70
  71     save_xor_byte = 0;
  72     wr_byte(H_VER_MAJOR);
  73     wr_byte(H_VER_MINOR);
  74     wr_byte(H_VER_PATCH);
  75     wr_byte(H_VER_EXTRA);
  76
  77     byte tmp8u = (byte)Rand_external(256);
  78     wr_byte(tmp8u);
  79     v_stamp = 0L;
  80     x_stamp = 0L;
  81
  82     wr_u32b(w_ptr->sf_system);
  83     wr_u32b(w_ptr->sf_when);
  84     wr_u16b(w_ptr->sf_lives);
  85     wr_u16b(w_ptr->sf_saves);
  86
  87     wr_u32b(SAVEFILE_VERSION);
  88     wr_u16b(0);
  89     wr_byte(0);
  90
  91 #ifdef JP
  92 #ifdef EUC
  93     wr_byte(2);
  94 #endif
  95 #ifdef SJIS
  96     wr_byte(3);
  97 #endif
  98 #else
  99     wr_byte(1);
 100 #endif
 101
 102     wr_randomizer();
 103     wr_options(type);
 104     uint32_t tmp32u = message_num();
 105     if ((compress_savefile || (type == SaveType::DEBUG)) && (tmp32u > 40)) {
 106         tmp32u = 40;
 107     }
 108
 109     wr_u32b(tmp32u);
 110     for (int i = tmp32u - 1; i >= 0; i--) {
 111         wr_string(message_str(i));
 112     }
 113
 114     uint16_t tmp16u = static_cast<uint16_t>(monraces_info.size());
 115     wr_u16b(tmp16u);
 116     for (auto r_idx = 0; r_idx < tmp16u; r_idx++) {
 117         wr_lore(i2enum<MonsterRaceId>(r_idx));
 118     }
 119
 120     tmp16u = static_cast<uint16_t>(baseitems_info.size());
 121     wr_u16b(tmp16u);
 122     for (short bi_id = 0; bi_id < tmp16u; bi_id++) {
 123         wr_perception(bi_id);
 124     }
 125
 126     tmp16u = static_cast<uint16_t>(towns_info.size());
 127     wr_u16b(tmp16u);
 128
 129     const auto &quest_list = QuestList::get_instance();
 130     tmp16u = static_cast<uint16_t>(quest_list.size());
 131     wr_u16b(tmp16u);
 132
 133     tmp8u = MAX_RANDOM_QUEST - MIN_RANDOM_QUEST;
 134     wr_byte(tmp8u);
 135
 136     for (const auto &[q_idx, q_ref] : quest_list) {
 137         wr_s16b(enum2i(q_idx));
 138         wr_s16b(enum2i(q_ref.status));
 139         wr_s16b((int16_t)q_ref.level);
 140         wr_byte((byte)q_ref.complev);
 141         wr_u32b(q_ref.comptime);
 142
 143         auto is_quest_running = q_ref.status == QuestStatusType::TAKEN;
 144         is_quest_running |= q_ref.status == QuestStatusType::COMPLETED;
 145         is_quest_running |= !quest_type::is_fixed(q_idx);
 146         if (!is_quest_running) {
 147             continue;
 148         }
 149
 150         wr_s16b((int16_t)q_ref.cur_num);
 151         wr_s16b((int16_t)q_ref.max_num);
 152         wr_s16b(enum2i(q_ref.type));
 153         wr_s16b(enum2i(q_ref.r_idx));
 154         wr_s16b(enum2i(q_ref.reward_artifact_idx));
 155         wr_byte((byte)q_ref.flags);
 156         wr_byte((byte)q_ref.dungeon);
 157     }
 158
 159     wr_s32b(player_ptr->wilderness_x);
 160     wr_s32b(player_ptr->wilderness_y);
 161     wr_bool(player_ptr->wild_mode);
 162     wr_bool(player_ptr->ambush_flag);
 163     wr_s32b(w_ptr->max_wild_x);
 164     wr_s32b(w_ptr->max_wild_y);
 165     for (int i = 0; i < w_ptr->max_wild_x; i++) {
 166         for (int j = 0; j < w_ptr->max_wild_y; j++) {
 167             wr_u32b(wilderness[j][i].seed);
 168         }
 169     }
 170
 171     auto max_a_num = enum2i(artifacts_info.rbegin()->first);
 172     tmp16u = max_a_num + 1;
 173     wr_u16b(tmp16u);
 174     ArtifactType dummy;
 175     for (auto i = 0U; i < tmp16u; i++) {
 176         const auto a_idx = i2enum<FixedArtifactId>(i);
 177         const auto it = artifacts_info.find(a_idx);
 178         const auto &a_ref = it != artifacts_info.end() ? it->second : dummy;
 179         wr_bool(a_ref.is_generated);
 180         wr_s16b(a_ref.floor_id);
 181     }
 182
 183     wr_u32b(w_ptr->sf_play_time);
 184     wr_FlagGroup(w_ptr->sf_winner, wr_byte);
 185     wr_FlagGroup(w_ptr->sf_retired, wr_byte);
 186
 187     wr_player(player_ptr);
 188     tmp16u = PY_MAX_LEVEL;
 189     wr_u16b(tmp16u);
 190     for (int i = 0; i < tmp16u; i++) {
 191         wr_s16b((int16_t)player_ptr->player_hp[i]);
 192     }
 193
 194     wr_u32b(player_ptr->spell_learned1);
 195     wr_u32b(player_ptr->spell_learned2);
 196     wr_u32b(player_ptr->spell_worked1);
 197     wr_u32b(player_ptr->spell_worked2);
 198     wr_u32b(player_ptr->spell_forgotten1);
 199     wr_u32b(player_ptr->spell_forgotten2);
 200     wr_s16b(player_ptr->learned_spells);
 201     wr_s16b(player_ptr->add_spells);
 202     for (int i = 0; i < 64; i++) {
 203         wr_byte((byte)player_ptr->spell_order[i]);
 204     }
 205
 206     for (int i = 0; i < INVEN_TOTAL; i++) {
 207         auto *o_ptr = &player_ptr->inventory_list[i];
 208         if (!o_ptr->bi_id) {
 209             continue;
 210         }
 211
 212         wr_u16b((uint16_t)i);
 213         wr_item(o_ptr);
 214     }
 215
 216     wr_u16b(0xFFFF);
 217     tmp16u = static_cast<uint16_t>(towns_info.size());
 218     wr_u16b(tmp16u);
 219
 220     tmp16u = MAX_STORES;
 221     wr_u16b(tmp16u);
 222     for (size_t i = 1; i < towns_info.size(); i++) {
 223         for (auto j = 0; j < MAX_STORES; j++) {
 224             wr_store(&towns_info[i].store[j]);
 225         }
 226     }
 227
 228     wr_s16b(player_ptr->pet_follow_distance);
 229     wr_s16b(player_ptr->pet_extra_flags);
 230     if (screen_dump && (player_ptr->wait_report_score || !player_ptr->is_dead)) {
 231         wr_string(screen_dump);
 232     } else {
 233         wr_string("");
 234     }
 235
 236     if (!player_ptr->is_dead) {
 237         if (!wr_dungeon(player_ptr)) {
 238             return false;
 239         }
 240
 241         wr_ghost();
 242         wr_s32b(0);
 243     }
 244
 245     wr_u32b(v_stamp);
 246     wr_u32b(x_stamp);
 247     return !ferror(saving_savefile) && (fflush(saving_savefile) != EOF);
 248 }
 249
 250 /*!
 251  * @brief セーブデータ書き込みのサブルーチン /
 252  * Medium level player saver
 253  * @param player_ptr プレイヤーへの参照ポインタ
 254  * @return 成功すればtrue
 255  * @details
 256  * Angband 2.8.0 will use "fd" instead of "fff" if possible
 257  */
 258 static bool save_player_aux(PlayerType *player_ptr, char *name, SaveType type)
 259 {
 260     safe_setuid_grab(player_ptr);
 261     int file_permission = 0644;
 262     int fd = fd_make(name, file_permission);
 263     safe_setuid_drop();
 264
 265     bool is_save_successful = false;
 266     saving_savefile = nullptr;
 267     if (fd >= 0) {
 268         (void)fd_close(fd);
 269         safe_setuid_grab(player_ptr);
 270         saving_savefile = angband_fopen(name, "wb");
 271         safe_setuid_drop();
 272         if (saving_savefile) {
 273             if (wr_savefile_new(player_ptr, type)) {
 274                 is_save_successful = true;
 275             }
 276
 277             if (angband_fclose(saving_savefile)) {
 278                 is_save_successful = false;
 279             }
 280         }
 281
 282         safe_setuid_grab(player_ptr);
 283         if (!is_save_successful) {
 284             (void)fd_kill(name);
 285         }
 286
 287         safe_setuid_drop();
 288     }
 289
 290     if (!is_save_successful) {
 291         return false;
 292     }
 293
 294     counts_write(player_ptr, 0, w_ptr->play_time);
 295     w_ptr->character_saved = true;
 296     return true;
 297 }
 298
 299 /*!
 300  * @brief セーブデータ書き込みのメインルーチン /
 301  * Attempt to save the player in a savefile
 302  * @param player_ptr プレイヤーへの参照ポインタ
 303  * @return 成功すればtrue
 304  */
 305 bool save_player(PlayerType *player_ptr, SaveType type)
 306 {
 307     char safe[1024];
 308     strcpy(safe, savefile);
 309     strcat(safe, ".new");
 310     safe_setuid_grab(player_ptr);
 311     fd_kill(safe);
 312     safe_setuid_drop();
 313     update_playtime();
 314     bool result = false;
 315     if (save_player_aux(player_ptr, safe, type)) {
 316         char temp[1024];
 317         char filename[1024];
 318         strcpy(temp, savefile);
 319         strcat(temp, ".old");
 320         safe_setuid_grab(player_ptr);
 321         fd_kill(temp);
 322
 323         if (type == SaveType::DEBUG) {
 324             strcpy(filename, debug_savefile);
 325         }
 326         if (type != SaveType::DEBUG) {
 327             strcpy(filename, savefile);
 328         }
 329
 330         fd_move(filename, temp);
 331         fd_move(safe, filename);
 332         fd_kill(temp);
 333         safe_setuid_drop();
 334         w_ptr->character_loaded = true;
 335         result = true;
 336     }
 337
 338     if (type != SaveType::CLOSE_GAME) {
 339         w_ptr->is_loading_now = false;
 340         update_creature(player_ptr);
 341         mproc_init(player_ptr->current_floor_ptr);
 342         w_ptr->is_loading_now = true;
 343     }
 344
 345     return result;
 346 }