economy_sl.cpp

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/*
 * This file is part of OpenTTD.
 * 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.
 * 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.
 * 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 <https://www.gnu.org/licenses/old-licenses/gpl-2.0>.
 */

 
#include "../stdafx.h"
 
#include "saveload.h"
#include "compat/economy_sl_compat.h"
 
#include "../economy_func.h"
#include "../economy_base.h"
#include "../vehicle_base.h"
 
#include "../safeguards.h"

struct PRICChunkHandler : ChunkHandler {
  PRICChunkHandler() : ChunkHandler("PRIC", ChunkType::ReadOnly) {}
 
  void Load() const override
  {
    size_t num_prices = 49;
    size_t record_size = (IsSavegameVersionBefore(SaveLoadVersion::UnifyCurrency) ? sizeof(uint32_t) : sizeof(uint64_t)) + sizeof(uint16_t);
    SlSkipBytes(num_prices * record_size);
  }
};

struct CAPRChunkHandler : ChunkHandler {
  CAPRChunkHandler() : ChunkHandler("CAPR", ChunkType::ReadOnly) {}
 
  void Load() const override
  {
    size_t num_cargo = IsSavegameVersionBefore(SaveLoadVersion::NewGRFCargo) ? 12 : IsSavegameVersionBefore(SaveLoadVersion::ExtendCargotypes) ? 32 : NUM_CARGO;
    size_t record_size = sizeof(uint16_t) + (IsSavegameVersionBefore(SaveLoadVersion::UnifyCurrency) ? sizeof(uint32_t) : sizeof(uint64_t));
    SlSkipBytes(num_cargo * record_size);
  }
};
 
static const SaveLoad _economy_desc[] = {
  SaveLoad::Variable<VarFileType::I32>("old_max_loan_unround", SLE_OBJECT_ADDRESS(Economy, old_max_loan_unround), SaveLoadVersion::MinVersion, SaveLoadVersion::UnifyCurrency),
  SaveLoad::Variable<VarFileType::I64>("old_max_loan_unround", SLE_OBJECT_ADDRESS(Economy, old_max_loan_unround), SaveLoadVersion::UnifyCurrency, SaveLoadVersion::CumulatedInflation),
  SaveLoad::Variable<VarFileType::U16>("old_max_loan_unround_fract", SLE_OBJECT_ADDRESS(Economy, old_max_loan_unround_fract), SaveLoadVersion::CargoPaymentOverflow, SaveLoadVersion::CumulatedInflation),
  SaveLoad::Variable<VarFileType::U64>("inflation_prices", SLE_OBJECT_ADDRESS(Economy, inflation_prices), SaveLoadVersion::CumulatedInflation),
  SaveLoad::Variable<VarFileType::U64>("inflation_payment", SLE_OBJECT_ADDRESS(Economy, inflation_payment), SaveLoadVersion::CumulatedInflation),
  SaveLoad::Variable<VarFileType::I16>("fluct", SLE_OBJECT_ADDRESS(Economy, fluct)),
  SaveLoad::Variable<VarFileType::U8>("interest_rate", SLE_OBJECT_ADDRESS(Economy, interest_rate)),
  SaveLoad::Variable<VarFileType::U8>("infl_amount", SLE_OBJECT_ADDRESS(Economy, infl_amount)),
  SaveLoad::Variable<VarFileType::U8>("infl_amount_pr", SLE_OBJECT_ADDRESS(Economy, infl_amount_pr)),
  SaveLoad::Variable<VarFileType::U32>("industry_daily_change_counter", SLE_OBJECT_ADDRESS(Economy, industry_daily_change_counter), SaveLoadVersion::SpreadIndustryProductionChanges),
};

struct ECMYChunkHandler : ChunkHandler {
  ECMYChunkHandler() : ChunkHandler("ECMY", ChunkType::Table) {}
 
  void Save() const override
  {
    SlTableHeader(_economy_desc);
 
    SlSetArrayIndex(0);
    SlObject(&_economy, _economy_desc);
  }
 
 
  void Load() const override
  {
    const std::vector<SaveLoad> slt = SlCompatTableHeader(_economy_desc, _economy_sl_compat);
 
    if (!IsSavegameVersionBefore(SaveLoadVersion::RiffToArray) && SlIterateArray() == -1) return;
    SlObject(&_economy, slt);
    if (!IsSavegameVersionBefore(SaveLoadVersion::RiffToArray) && SlIterateArray() != -1) SlErrorCorrupt("Too many ECMY entries");
 
    StartupIndustryDailyChanges(IsSavegameVersionBefore(SaveLoadVersion::SpreadIndustryProductionChanges)); // old savegames will need to be initialized
  }
};
 
static const SaveLoad _cargopayment_desc[] = {
  SaveLoad::Reference<SLRefType::Vehicle>("front", SLE_OBJECT_ADDRESS(CargoPayment, front)),
  SaveLoad::Variable<VarFileType::I64>("route_profit", SLE_OBJECT_ADDRESS(CargoPayment, route_profit)),
  SaveLoad::Variable<VarFileType::I64>("visual_profit", SLE_OBJECT_ADDRESS(CargoPayment, visual_profit)),
  SaveLoad::Variable<VarFileType::I64>("visual_transfer", SLE_OBJECT_ADDRESS(CargoPayment, visual_transfer), SaveLoadVersion::CargoReservation),
};
 
struct CAPYChunkHandler : ChunkHandler {
  CAPYChunkHandler() : ChunkHandler("CAPY", ChunkType::Table) {}
 
  void Save() const override
  {
    SlTableHeader(_cargopayment_desc);
 
    for (CargoPayment *cp : CargoPayment::Iterate()) {
      SlSetArrayIndex(cp->index);
      SlObject(cp, _cargopayment_desc);
    }
  }
 
  void Load() const override
  {
    const std::vector<SaveLoad> slt = SlCompatTableHeader(_cargopayment_desc, _cargopayment_sl_compat);
 
    int index;
 
    while ((index = SlIterateArray()) != -1) {
      CargoPayment *cp = CargoPayment::CreateAtIndex(CargoPaymentID(index));
      SlObject(cp, slt);
    }
  }
 
  void FixPointers() const override
  {
    for (CargoPayment *cp : CargoPayment::Iterate()) {
      SlObject(cp, _cargopayment_desc);
    }
  }
};
 
static const CAPYChunkHandler CAPY;
static const PRICChunkHandler PRIC;
static const CAPRChunkHandler CAPR;
static const ECMYChunkHandler ECMY;
static const ChunkHandlerRef economy_chunk_handlers[] = {
  CAPY,
  PRIC,
  CAPR,
  ECMY,
};
 
extern const ChunkHandlerTable _economy_chunk_handlers(economy_chunk_handlers);