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/*
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* This file is part of OpenTTD.
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* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
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* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file settings_sl.cpp Handles the saveload part of the settings. */
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#include "../stdafx.h"
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#include "saveload.h"
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#include "debug.h"
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#include "compat/settings_sl_compat.h"
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#include "../settings_type.h"
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#include "../settings_internal.h"
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#include "../network/network.h"
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#include "../fios.h"
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#include "../load_check.h"
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#include "../safeguards.h"
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namespace upstream_sl {
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/**
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* Get the SaveLoad description for the SettingTable.
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* @param settings SettingDesc struct containing all information.
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* @param is_loading True iff the SaveLoad table is for loading.
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* @return Vector with SaveLoad entries for the SettingTable.
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*/
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static std::vector<SaveLoad> GetSettingsDesc(bool is_loading)
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{
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std::vector<SaveLoad> saveloads;
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for (auto &sd : IterateSettingTables(GetSaveLoadSettingsTables())) {
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if (sd->flags & SF_NOT_IN_SAVE) continue;
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if (is_loading && !SlXvIsFeaturePresent(XSLFI_TABLE_PATS) && (sd->flags & SF_PATCH)) continue;
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if (!sd->save.ext_feature_test.IsFeaturePresent(_sl_version, sd->save.version_from, sd->save.version_to)) continue;
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VarType new_type = 0;
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switch (sd->save.conv & 0x0F) {
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case ::SLE_FILE_I8:
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new_type |= SLE_FILE_I8;
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break;
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case ::SLE_FILE_U8:
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new_type |= SLE_FILE_U8;
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break;
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case ::SLE_FILE_I16:
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new_type |= SLE_FILE_I16;
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break;
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case ::SLE_FILE_U16:
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new_type |= SLE_FILE_U16;
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break;
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case ::SLE_FILE_I32:
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new_type |= SLE_FILE_I32;
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break;
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case ::SLE_FILE_U32:
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new_type |= SLE_FILE_U32;
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break;
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case ::SLE_FILE_I64:
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new_type |= SLE_FILE_I64;
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break;
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case ::SLE_FILE_U64:
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new_type |= SLE_FILE_U64;
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break;
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case ::SLE_FILE_STRINGID:
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new_type |= SLE_FILE_STRINGID;
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break;
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case ::SLE_FILE_STRING:
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new_type |= SLE_FILE_STRING;
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break;
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default:
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error("Unexpected save conv for %s: 0x%02X", sd->name, sd->save.conv);
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}
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switch (sd->save.conv & 0xF0) {
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case ::SLE_VAR_BL:
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new_type |= SLE_VAR_BL;
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break;
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case ::SLE_VAR_I8:
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new_type |= SLE_VAR_I8;
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break;
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case ::SLE_VAR_U8:
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new_type |= SLE_VAR_U8;
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break;
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case ::SLE_VAR_I16:
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new_type |= SLE_VAR_I16;
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break;
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case ::SLE_VAR_U16:
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new_type |= SLE_VAR_U16;
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break;
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case ::SLE_VAR_I32:
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new_type |= SLE_VAR_I32;
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break;
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case ::SLE_VAR_U32:
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new_type |= SLE_VAR_U32;
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break;
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case ::SLE_VAR_I64:
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new_type |= SLE_VAR_I64;
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break;
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case ::SLE_VAR_U64:
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new_type |= SLE_VAR_U64;
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break;
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case ::SLE_VAR_NULL:
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new_type |= SLE_VAR_NULL;
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break;
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case ::SLE_VAR_STRB:
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new_type |= SLE_VAR_STRB;
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break;
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case ::SLE_VAR_STR:
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new_type |= SLE_VAR_STR;
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break;
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case ::SLE_VAR_STRQ:
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new_type |= SLE_VAR_STRQ;
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break;
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default:
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error("Unexpected save conv for %s: 0x%02X", sd->name, sd->save.conv);
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}
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/* economy.town_growth_rate is int8_t here, but uint8_t in upstream saves */
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if (is_loading && !SlXvIsFeaturePresent(XSLFI_TABLE_PATS) && strcmp(sd->name, "economy.town_growth_rate") == 0) {
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SB(new_type, 0, 4, SLE_FILE_U8);
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}
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SaveLoadType new_cmd;
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switch (sd->save.cmd) {
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case ::SL_VAR:
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new_cmd = SL_VAR;
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break;
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case ::SL_STR:
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new_cmd = SL_STR;
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break;
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case ::SL_STDSTR:
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new_cmd = SL_STDSTR;
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break;
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default:
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error("Unexpected save cmd for %s: %u", sd->name, sd->save.cmd);
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}
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if (is_loading && (sd->flags & SF_NO_NETWORK_SYNC) && _networking && !_network_server) {
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if (IsSavegameVersionBefore(SLV_TABLE_CHUNKS)) {
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/* We don't want to read this setting, so we do need to skip over it. */
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saveloads.push_back({sd->name, new_cmd, GetVarFileType(new_type) | SLE_VAR_NULL, sd->save.length, SL_MIN_VERSION, SL_MAX_VERSION, 0, nullptr, 0, nullptr});
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}
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continue;
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}
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SaveLoadAddrProc *address_proc = [](void *base, size_t extra) -> void* {
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return const_cast<byte *>((const byte *)base + (ptrdiff_t)extra);
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};
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saveloads.push_back({sd->name, new_cmd, new_type, sd->save.length, SL_MIN_VERSION, SL_MAX_VERSION, sd->save.size, address_proc, reinterpret_cast<uintptr_t>(sd->save.address), nullptr});
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}
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return saveloads;
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}
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/**
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* Save and load handler for settings
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* @param settings SettingDesc struct containing all information
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* @param object can be either nullptr in which case we load global variables or
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* a pointer to a struct which is getting saved
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*/
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static void LoadSettings(void *object, const SaveLoadCompatTable &slct)
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{
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const std::vector<SaveLoad> slt = SlCompatTableHeader(GetSettingsDesc(true), slct);
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if (!IsSavegameVersionBefore(SLV_RIFF_TO_ARRAY) && SlIterateArray() == -1) return;
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SlObject(object, slt);
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if (!IsSavegameVersionBefore(SLV_RIFF_TO_ARRAY) && SlIterateArray() != -1) SlErrorCorrupt("Too many settings entries");
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/* Ensure all IntSettings are valid (min/max could have changed between versions etc). */
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for (auto &sd : IterateSettingTables(GetSaveLoadSettingsTables())) {
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if (sd->flags & SF_NOT_IN_SAVE) continue;
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if ((sd->flags & SF_NO_NETWORK_SYNC) && _networking && !_network_server) continue;
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if (!sd->save.ext_feature_test.IsFeaturePresent(_sl_xv_feature_static_versions, MAX_LOAD_SAVEGAME_VERSION, sd->save.version_from, sd->save.version_to)) continue;
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if (sd->IsIntSetting()) {
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const IntSettingDesc *int_setting = sd->AsIntSetting();
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int_setting->MakeValueValidAndWrite(object, int_setting->Read(object));
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}
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}
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}
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/**
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* Save and load handler for settings
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* @param settings SettingDesc struct containing all information
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* @param object can be either nullptr in which case we load global variables or
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* a pointer to a struct which is getting saved
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*/
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static void SaveSettings(void *object)
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{
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const std::vector<SaveLoad> slt = GetSettingsDesc(false);
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SlTableHeader(slt);
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SlSetArrayIndex(0);
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SlObject(object, slt);
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}
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struct PATSChunkHandler : ChunkHandler {
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PATSChunkHandler() : ChunkHandler('PATS', CH_TABLE) {}
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void Load() const override
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{
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/* Settings were previously reset to their defaults, so any settings missing in the savegame
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* are their default, and not "value of last game". AfterLoad might still fix
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* up values to become non-default, depending on the saveload version. */
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LoadSettings(&_settings_game, _settings_sl_compat);
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}
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void LoadCheck(size_t) const override
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{
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LoadSettings(&_load_check_data.settings, _settings_sl_compat);
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}
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void Save() const override
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{
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SaveSettings(&_settings_game);
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}
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};
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static const PATSChunkHandler PATS;
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static const ChunkHandlerRef setting_chunk_handlers[] = {
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PATS,
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};
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extern const ChunkHandlerTable _setting_chunk_handlers(setting_chunk_handlers);
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}
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