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 <http://www.gnu.org/licenses/>.
 */
 
#include "../stdafx.h"
 
#include "saveload.h"
#include "compat/economy_sl_compat.h"
 
#include "../economy_func.h"
#include "../economy_base.h"
 
#include "../safeguards.h"
 
struct PRICChunkHandler : ChunkHandler {
  PRICChunkHandler() : ChunkHandler('PRIC', CH_READONLY) {}
 
  void Load() const override
  {
    /* Old games store 49 base prices, very old games store them as int32_t */
    int vt = IsSavegameVersionBefore(SLV_65) ? SLE_FILE_I32 : SLE_FILE_I64;
    SlCopy(nullptr, 49, vt | SLE_VAR_NULL);
    SlCopy(nullptr, 49, SLE_FILE_U16 | SLE_VAR_NULL);
  }
};
 
struct CAPRChunkHandler : ChunkHandler {
  CAPRChunkHandler() : ChunkHandler('CAPR', CH_READONLY) {}
 
  void Load() const override
  {
    uint num_cargo = IsSavegameVersionBefore(SLV_55) ? 12 : IsSavegameVersionBefore(SLV_EXTEND_CARGOTYPES) ? 32 : NUM_CARGO;
    int vt = IsSavegameVersionBefore(SLV_65) ? SLE_FILE_I32 : SLE_FILE_I64;
    SlCopy(nullptr, num_cargo, vt | SLE_VAR_NULL);
    SlCopy(nullptr, num_cargo, SLE_FILE_U16 | SLE_VAR_NULL);
  }
};
 
static const SaveLoad _economy_desc[] = {
  SLE_CONDVAR(Economy, old_max_loan_unround,          SLE_FILE_I32 | SLE_VAR_I64,  SL_MIN_VERSION, SLV_65),
  SLE_CONDVAR(Economy, old_max_loan_unround,          SLE_INT64,                  SLV_65, SLV_126),
  SLE_CONDVAR(Economy, old_max_loan_unround_fract,    SLE_UINT16,                 SLV_70, SLV_126),
  SLE_CONDVAR(Economy, inflation_prices,              SLE_UINT64,                SLV_126, SL_MAX_VERSION),
  SLE_CONDVAR(Economy, inflation_payment,             SLE_UINT64,                SLV_126, SL_MAX_VERSION),
      SLE_VAR(Economy, fluct,                         SLE_INT16),
      SLE_VAR(Economy, interest_rate,                 SLE_UINT8),
      SLE_VAR(Economy, infl_amount,                   SLE_UINT8),
      SLE_VAR(Economy, infl_amount_pr,                SLE_UINT8),
  SLE_CONDVAR(Economy, industry_daily_change_counter, SLE_UINT32,                SLV_102, SL_MAX_VERSION),
};
 
struct ECMYChunkHandler : ChunkHandler {
  ECMYChunkHandler() : ChunkHandler('ECMY', CH_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(SLV_RIFF_TO_ARRAY) && SlIterateArray() == -1) return;
    SlObject(&_economy, slt);
    if (!IsSavegameVersionBefore(SLV_RIFF_TO_ARRAY) && SlIterateArray() != -1) SlErrorCorrupt("Too many ECMY entries");
 
    StartupIndustryDailyChanges(IsSavegameVersionBefore(SLV_102));  // old savegames will need to be initialized
  }
};
 
static const SaveLoad _cargopayment_desc[] = {
      SLE_REF(CargoPayment, front,           REF_VEHICLE),
      SLE_VAR(CargoPayment, route_profit,    SLE_INT64),
      SLE_VAR(CargoPayment, visual_profit,   SLE_INT64),
  SLE_CONDVAR(CargoPayment, visual_transfer, SLE_INT64, SLV_181, SL_MAX_VERSION),
};
 
struct CAPYChunkHandler : ChunkHandler {
  CAPYChunkHandler() : ChunkHandler('CAPY', CH_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 = new (index) CargoPayment();
      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);