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OpenTTD/src/saveload/station_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/>.
*/
/** @file station_sl.cpp Code handling saving and loading of stations. */
#include "../stdafx.h"
#include "saveload.h"
#include "compat/station_sl_compat.h"
#include "../station_base.h"
#include "../waypoint_base.h"
#include "../roadstop_base.h"
#include "../vehicle_base.h"
#include "../newgrf_station.h"
#include "../newgrf_roadstop.h"
#include "table/strings.h"
#include "../safeguards.h"
/**
* Update the buoy orders to be waypoint orders.
* @param o the order 'list' to check.
*/
static void UpdateWaypointOrder(Order *o)
{
if (!o->IsType(OT_GOTO_STATION)) return;
const Station *st = Station::Get(o->GetDestination());
if ((st->had_vehicle_of_type & HVOT_WAYPOINT) == 0) return;
o->MakeGoToWaypoint(o->GetDestination());
}
/**
* Perform all steps to upgrade from the old station buoys to the new version
* that uses waypoints. This includes some old saveload mechanics.
*/
void MoveBuoysToWaypoints()
{
/* Buoy orders become waypoint orders */
for (OrderList *ol : OrderList::Iterate()) {
VehicleType vt = ol->GetFirstSharedVehicle()->type;
if (vt != VEH_SHIP && vt != VEH_TRAIN) continue;
for (Order *o = ol->GetFirstOrder(); o != nullptr; o = o->next) UpdateWaypointOrder(o);
}
for (Vehicle *v : Vehicle::Iterate()) {
VehicleType vt = v->type;
if (vt != VEH_SHIP && vt != VEH_TRAIN) continue;
UpdateWaypointOrder(&v->current_order);
}
/* Now make the stations waypoints */
for (Station *st : Station::Iterate()) {
if ((st->had_vehicle_of_type & HVOT_WAYPOINT) == 0) continue;
StationID index = st->index;
TileIndex xy = st->xy;
Town *town = st->town;
StringID string_id = st->string_id;
std::string name = st->name;
Date build_date = st->build_date;
/* TTDPatch could use "buoys with rail station" for rail waypoints */
bool train = st->train_station.tile != INVALID_TILE;
TileArea train_st = st->train_station;
/* Delete the station, so we can make it a real waypoint. */
delete st;
/* Stations and waypoints are in the same pool, so if a station
* is deleted there must be place for a Waypoint. */
assert(Waypoint::CanAllocateItem());
Waypoint *wp = new (index) Waypoint(xy);
wp->town = town;
wp->string_id = train ? STR_SV_STNAME_WAYPOINT : STR_SV_STNAME_BUOY;
wp->name = name;
wp->delete_ctr = 0; // Just reset delete counter for once.
wp->build_date = build_date;
wp->owner = train ? GetTileOwner(xy) : OWNER_NONE;
if (IsInsideBS(string_id, STR_SV_STNAME_BUOY, 9)) wp->town_cn = string_id - STR_SV_STNAME_BUOY;
if (train) {
/* When we make a rail waypoint of the station, convert the map as well. */
for (TileIndex t : train_st) {
Tile tile(t);
if (!IsTileType(tile, MP_STATION) || GetStationIndex(tile) != index) continue;
SB(tile.m6(), 3, 3, STATION_WAYPOINT);
wp->rect.BeforeAddTile(t, StationRect::ADD_FORCE);
}
wp->train_station = train_st;
wp->facilities |= FACIL_TRAIN;
} else if (IsBuoyTile(xy) && GetStationIndex(xy) == index) {
wp->rect.BeforeAddTile(xy, StationRect::ADD_FORCE);
wp->facilities |= FACIL_DOCK;
}
}
}
void AfterLoadStations()
{
/* Update the speclists of all stations to point to the currently loaded custom stations. */
for (BaseStation *st : BaseStation::Iterate()) {
for (uint i = 0; i < st->speclist.size(); i++) {
if (st->speclist[i].grfid == 0) continue;
st->speclist[i].spec = StationClass::GetByGrf(st->speclist[i].grfid, st->speclist[i].localidx, nullptr);
}
for (uint i = 0; i < st->roadstop_speclist.size(); i++) {
if (st->roadstop_speclist[i].grfid == 0) continue;
st->roadstop_speclist[i].spec = RoadStopClass::GetByGrf(st->roadstop_speclist[i].grfid, st->roadstop_speclist[i].localidx, nullptr);
}
if (Station::IsExpected(st)) {
Station *sta = Station::From(st);
for (const RoadStop *rs = sta->bus_stops; rs != nullptr; rs = rs->next) sta->bus_station.Add(rs->xy);
for (const RoadStop *rs = sta->truck_stops; rs != nullptr; rs = rs->next) sta->truck_station.Add(rs->xy);
}
StationUpdateCachedTriggers(st);
RoadStopUpdateCachedTriggers(st);
}
}
/**
* (Re)building of road stop caches after loading a savegame.
*/
void AfterLoadRoadStops()
{
/* First construct the drive through entries */
for (RoadStop *rs : RoadStop::Iterate()) {
if (IsDriveThroughStopTile(rs->xy)) rs->MakeDriveThrough();
}
/* And then rebuild the data in those entries */
for (RoadStop *rs : RoadStop::Iterate()) {
if (!HasBit(rs->status, RoadStop::RSSFB_BASE_ENTRY)) continue;
rs->GetEntry(DIAGDIR_NE)->Rebuild(rs);
rs->GetEntry(DIAGDIR_NW)->Rebuild(rs);
}
}
static const SaveLoad _roadstop_desc[] = {
SLE_VAR(RoadStop, xy, SLE_UINT32),
SLE_VAR(RoadStop, status, SLE_UINT8),
SLE_REF(RoadStop, next, REF_ROADSTOPS),
};
static uint16 _waiting_acceptance;
static uint32 _old_num_flows;
static uint16 _cargo_source;
static uint32 _cargo_source_xy;
static uint8 _cargo_days;
static Money _cargo_feeder_share;
std::list<CargoPacket *> _packets;
uint32 _old_num_dests;
struct FlowSaveLoad {
FlowSaveLoad() : source(0), via(0), share(0), restricted(false) {}
StationID source;
StationID via;
uint32 share;
bool restricted;
};
typedef std::pair<const StationID, std::list<CargoPacket *> > StationCargoPair;
static OldPersistentStorage _old_st_persistent_storage;
/**
* Swap the temporary packets with the packets without specific destination in
* the given goods entry. Assert that at least one of those is empty.
* @param ge Goods entry to swap with.
*/
static void SwapPackets(GoodsEntry *ge)
{
StationCargoPacketMap &ge_packets = const_cast<StationCargoPacketMap &>(*ge->cargo.Packets());
if (_packets.empty()) {
std::map<StationID, std::list<CargoPacket *> >::iterator it(ge_packets.find(INVALID_STATION));
if (it == ge_packets.end()) {
return;
} else {
it->second.swap(_packets);
}
} else {
assert(ge_packets[INVALID_STATION].empty());
ge_packets[INVALID_STATION].swap(_packets);
}
}
class SlStationSpecList : public DefaultSaveLoadHandler<SlStationSpecList, BaseStation> {
public:
inline static const SaveLoad description[] = {
SLE_CONDVAR(StationSpecList, grfid, SLE_UINT32, SLV_27, SL_MAX_VERSION),
SLE_CONDVAR(StationSpecList, localidx, SLE_UINT8, SLV_27, SL_MAX_VERSION),
};
inline const static SaveLoadCompatTable compat_description = _station_spec_list_sl_compat;
static uint8 last_num_specs; ///< Number of specs of the last loaded station.
void Save(BaseStation *bst) const override
{
SlSetStructListLength(bst->speclist.size());
for (uint i = 0; i < bst->speclist.size(); i++) {
SlObject(&bst->speclist[i], this->GetDescription());
}
}
void Load(BaseStation *bst) const override
{
uint8 num_specs = IsSavegameVersionBefore(SLV_SAVELOAD_LIST_LENGTH) ? last_num_specs : (uint8)SlGetStructListLength(UINT8_MAX);
bst->speclist.resize(num_specs);
for (uint i = 0; i < num_specs; i++) {
SlObject(&bst->speclist[i], this->GetLoadDescription());
}
}
};
uint8 SlStationSpecList::last_num_specs;
class SlRoadStopSpecList : public DefaultSaveLoadHandler<SlRoadStopSpecList, BaseStation> {
public:
inline static const SaveLoad description[] = {
SLE_VAR(RoadStopSpecList, grfid, SLE_UINT32),
SLE_VAR(RoadStopSpecList, localidx, SLE_UINT8),
};
inline const static SaveLoadCompatTable compat_description = _station_road_stop_spec_list_sl_compat;
void Save(BaseStation *bst) const override
{
SlSetStructListLength(bst->roadstop_speclist.size());
for (uint i = 0; i < bst->roadstop_speclist.size(); i++) {
SlObject(&bst->roadstop_speclist[i], this->GetDescription());
}
}
void Load(BaseStation *bst) const override
{
uint8 num_specs = (uint8)SlGetStructListLength(UINT8_MAX);
bst->roadstop_speclist.resize(num_specs);
for (uint i = 0; i < num_specs; i++) {
SlObject(&bst->roadstop_speclist[i], this->GetLoadDescription());
}
}
};
class SlStationCargo : public DefaultSaveLoadHandler<SlStationCargo, GoodsEntry> {
public:
inline static const SaveLoad description[] = {
SLE_VAR(StationCargoPair, first, SLE_UINT16),
SLE_REFLIST(StationCargoPair, second, REF_CARGO_PACKET),
};
inline const static SaveLoadCompatTable compat_description = _station_cargo_sl_compat;
void Save(GoodsEntry *ge) const override
{
SlSetStructListLength(ge->cargo.Packets()->MapSize());
for (StationCargoPacketMap::ConstMapIterator it(ge->cargo.Packets()->begin()); it != ge->cargo.Packets()->end(); ++it) {
SlObject(const_cast<StationCargoPacketMap::value_type *>(&(*it)), this->GetDescription());
}
}
void Load(GoodsEntry *ge) const override
{
size_t num_dests = IsSavegameVersionBefore(SLV_SAVELOAD_LIST_LENGTH) ? _old_num_dests : SlGetStructListLength(UINT32_MAX);
StationCargoPair pair;
for (uint j = 0; j < num_dests; ++j) {
SlObject(&pair, this->GetLoadDescription());
const_cast<StationCargoPacketMap &>(*(ge->cargo.Packets()))[pair.first].swap(pair.second);
assert(pair.second.empty());
}
}
void FixPointers(GoodsEntry *ge) const override
{
for (StationCargoPacketMap::ConstMapIterator it = ge->cargo.Packets()->begin(); it != ge->cargo.Packets()->end(); ++it) {
SlObject(const_cast<StationCargoPair *>(&(*it)), this->GetDescription());
}
}
};
class SlStationFlow : public DefaultSaveLoadHandler<SlStationFlow, GoodsEntry> {
public:
inline static const SaveLoad description[] = {
SLE_VAR(FlowSaveLoad, source, SLE_UINT16),
SLE_VAR(FlowSaveLoad, via, SLE_UINT16),
SLE_VAR(FlowSaveLoad, share, SLE_UINT32),
SLE_CONDVAR(FlowSaveLoad, restricted, SLE_BOOL, SLV_187, SL_MAX_VERSION),
};
inline const static SaveLoadCompatTable compat_description = _station_flow_sl_compat;
void Save(GoodsEntry *ge) const override
{
uint32 num_flows = 0;
for (FlowStatMap::const_iterator it(ge->flows.begin()); it != ge->flows.end(); ++it) {
num_flows += (uint32)it->second.GetShares()->size();
}
SlSetStructListLength(num_flows);
for (FlowStatMap::const_iterator outer_it(ge->flows.begin()); outer_it != ge->flows.end(); ++outer_it) {
const FlowStat::SharesMap *shares = outer_it->second.GetShares();
uint32 sum_shares = 0;
FlowSaveLoad flow;
flow.source = outer_it->first;
for (FlowStat::SharesMap::const_iterator inner_it(shares->begin()); inner_it != shares->end(); ++inner_it) {
flow.via = inner_it->second;
flow.share = inner_it->first - sum_shares;
flow.restricted = inner_it->first > outer_it->second.GetUnrestricted();
sum_shares = inner_it->first;
assert(flow.share > 0);
SlObject(&flow, this->GetDescription());
}
}
}
void Load(GoodsEntry *ge) const override
{
size_t num_flows = IsSavegameVersionBefore(SLV_SAVELOAD_LIST_LENGTH) ? _old_num_flows : SlGetStructListLength(UINT32_MAX);
FlowSaveLoad flow;
FlowStat *fs = nullptr;
StationID prev_source = INVALID_STATION;
for (uint32 j = 0; j < num_flows; ++j) {
SlObject(&flow, this->GetLoadDescription());
if (fs == nullptr || prev_source != flow.source) {
fs = &(ge->flows.insert(std::make_pair(flow.source, FlowStat(flow.via, flow.share, flow.restricted))).first->second);
} else {
fs->AppendShare(flow.via, flow.share, flow.restricted);
}
prev_source = flow.source;
}
}
};
class SlStationGoods : public DefaultSaveLoadHandler<SlStationGoods, BaseStation> {
public:
#if defined(_MSC_VER) && (_MSC_VER == 1915 || _MSC_VER == 1916)
/* This table access private members of other classes; they have this
* class as friend. For MSVC CL 19.15 and 19.16 this doesn't work for
* "inline static const", so we are forced to wrap the table in a
* function. CL 19.16 is the latest for VS2017. */
inline static const SaveLoad description[] = {{}};
SaveLoadTable GetDescription() const override {
#else
inline
#endif
static const SaveLoad description[] = {
SLEG_CONDVAR("waiting_acceptance", _waiting_acceptance, SLE_UINT16, SL_MIN_VERSION, SLV_68),
SLE_CONDVAR(GoodsEntry, status, SLE_UINT8, SLV_68, SL_MAX_VERSION),
SLE_VAR(GoodsEntry, time_since_pickup, SLE_UINT8),
SLE_VAR(GoodsEntry, rating, SLE_UINT8),
SLEG_CONDVAR("cargo_source", _cargo_source, SLE_FILE_U8 | SLE_VAR_U16, SL_MIN_VERSION, SLV_7),
SLEG_CONDVAR("cargo_source", _cargo_source, SLE_UINT16, SLV_7, SLV_68),
SLEG_CONDVAR("cargo_source_xy", _cargo_source_xy, SLE_UINT32, SLV_44, SLV_68),
SLEG_CONDVAR("cargo_days", _cargo_days, SLE_UINT8, SL_MIN_VERSION, SLV_68),
SLE_VAR(GoodsEntry, last_speed, SLE_UINT8),
SLE_VAR(GoodsEntry, last_age, SLE_UINT8),
SLEG_CONDVAR("cargo_feeder_share", _cargo_feeder_share, SLE_FILE_U32 | SLE_VAR_I64, SLV_14, SLV_65),
SLEG_CONDVAR("cargo_feeder_share", _cargo_feeder_share, SLE_INT64, SLV_65, SLV_68),
SLE_CONDVAR(GoodsEntry, amount_fract, SLE_UINT8, SLV_150, SL_MAX_VERSION),
SLEG_CONDREFLIST("packets", _packets, REF_CARGO_PACKET, SLV_68, SLV_183),
SLEG_CONDVAR("old_num_dests", _old_num_dests, SLE_UINT32, SLV_183, SLV_SAVELOAD_LIST_LENGTH),
SLE_CONDVAR(GoodsEntry, cargo.reserved_count, SLE_UINT, SLV_181, SL_MAX_VERSION),
SLE_CONDVAR(GoodsEntry, link_graph, SLE_UINT16, SLV_183, SL_MAX_VERSION),
SLE_CONDVAR(GoodsEntry, node, SLE_UINT16, SLV_183, SL_MAX_VERSION),
SLEG_CONDVAR("old_num_flows", _old_num_flows, SLE_UINT32, SLV_183, SLV_SAVELOAD_LIST_LENGTH),
SLE_CONDVAR(GoodsEntry, max_waiting_cargo, SLE_UINT32, SLV_183, SL_MAX_VERSION),
SLEG_CONDSTRUCTLIST("flow", SlStationFlow, SLV_183, SL_MAX_VERSION),
SLEG_CONDSTRUCTLIST("cargo", SlStationCargo, SLV_183, SL_MAX_VERSION),
};
#if defined(_MSC_VER) && (_MSC_VER == 1915 || _MSC_VER == 1916)
return description;
}
#endif
inline const static SaveLoadCompatTable compat_description = _station_goods_sl_compat;
/**
* Get the number of cargoes used by this savegame version.
* @return The number of cargoes used by this savegame version.
*/
size_t GetNumCargo() const
{
if (IsSavegameVersionBefore(SLV_55)) return 12;
if (IsSavegameVersionBefore(SLV_EXTEND_CARGOTYPES)) return 32;
if (IsSavegameVersionBefore(SLV_SAVELOAD_LIST_LENGTH)) return NUM_CARGO;
/* Read from the savegame how long the list is. */
return SlGetStructListLength(NUM_CARGO);
}
void Save(BaseStation *bst) const override
{
Station *st = Station::From(bst);
SlSetStructListLength(NUM_CARGO);
for (CargoID i = 0; i < NUM_CARGO; i++) {
SlObject(&st->goods[i], this->GetDescription());
}
}
void Load(BaseStation *bst) const override
{
Station *st = Station::From(bst);
/* Before savegame version 161, persistent storages were not stored in a pool. */
if (IsSavegameVersionBefore(SLV_161) && !IsSavegameVersionBefore(SLV_145) && st->facilities & FACIL_AIRPORT) {
/* Store the old persistent storage. The GRFID will be added later. */
assert(PersistentStorage::CanAllocateItem());
st->airport.psa = new PersistentStorage(0, 0, 0);
memcpy(st->airport.psa->storage, _old_st_persistent_storage.storage, sizeof(_old_st_persistent_storage.storage));
}
size_t num_cargo = this->GetNumCargo();
for (size_t i = 0; i < num_cargo; i++) {
GoodsEntry *ge = &st->goods[i];
SlObject(ge, this->GetLoadDescription());
if (IsSavegameVersionBefore(SLV_183)) {
SwapPackets(ge);
}
if (IsSavegameVersionBefore(SLV_68)) {
SB(ge->status, GoodsEntry::GES_ACCEPTANCE, 1, HasBit(_waiting_acceptance, 15));
if (GB(_waiting_acceptance, 0, 12) != 0) {
/* In old versions, enroute_from used 0xFF as INVALID_STATION */
StationID source = (IsSavegameVersionBefore(SLV_7) && _cargo_source == 0xFF) ? INVALID_STATION : _cargo_source;
/* Make sure we can allocate the CargoPacket. This is safe
* as there can only be ~64k stations and 32 cargoes in these
* savegame versions. As the CargoPacketPool has more than
* 16 million entries; it fits by an order of magnitude. */
assert(CargoPacket::CanAllocateItem());
/* Don't construct the packet with station here, because that'll fail with old savegames */
CargoPacket *cp = new CargoPacket(GB(_waiting_acceptance, 0, 12), _cargo_days, source, _cargo_source_xy, _cargo_source_xy, _cargo_feeder_share);
ge->cargo.Append(cp, INVALID_STATION);
SB(ge->status, GoodsEntry::GES_RATING, 1, 1);
}
}
}
}
void FixPointers(BaseStation *bst) const override
{
Station *st = Station::From(bst);
uint num_cargo = IsSavegameVersionBefore(SLV_55) ? 12 : IsSavegameVersionBefore(SLV_EXTEND_CARGOTYPES) ? 32 : NUM_CARGO;
for (CargoID i = 0; i < num_cargo; i++) {
GoodsEntry *ge = &st->goods[i];
if (IsSavegameVersionBefore(SLV_183)) {
SwapPackets(ge); // We have to swap back again to be in the format pre-183 expects.
SlObject(ge, this->GetDescription());
SwapPackets(ge);
} else {
SlObject(ge, this->GetDescription());
}
}
}
};
static const SaveLoad _old_station_desc[] = {
SLE_CONDVAR(Station, xy, SLE_FILE_U16 | SLE_VAR_U32, SL_MIN_VERSION, SLV_6),
SLE_CONDVAR(Station, xy, SLE_UINT32, SLV_6, SL_MAX_VERSION),
SLE_CONDVAR(Station, train_station.tile, SLE_FILE_U16 | SLE_VAR_U32, SL_MIN_VERSION, SLV_6),
SLE_CONDVAR(Station, train_station.tile, SLE_UINT32, SLV_6, SL_MAX_VERSION),
SLE_CONDVAR(Station, airport.tile, SLE_FILE_U16 | SLE_VAR_U32, SL_MIN_VERSION, SLV_6),
SLE_CONDVAR(Station, airport.tile, SLE_UINT32, SLV_6, SL_MAX_VERSION),
SLE_REF(Station, town, REF_TOWN),
SLE_VAR(Station, train_station.w, SLE_FILE_U8 | SLE_VAR_U16),
SLE_CONDVAR(Station, train_station.h, SLE_FILE_U8 | SLE_VAR_U16, SLV_2, SL_MAX_VERSION),
SLE_VAR(Station, string_id, SLE_STRINGID),
SLE_CONDSSTR(Station, name, SLE_STR | SLF_ALLOW_CONTROL, SLV_84, SL_MAX_VERSION),
SLE_CONDVAR(Station, indtype, SLE_UINT8, SLV_103, SL_MAX_VERSION),
SLE_CONDVAR(Station, had_vehicle_of_type, SLE_FILE_U16 | SLE_VAR_U8, SL_MIN_VERSION, SLV_122),
SLE_CONDVAR(Station, had_vehicle_of_type, SLE_UINT8, SLV_122, SL_MAX_VERSION),
SLE_VAR(Station, time_since_load, SLE_UINT8),
SLE_VAR(Station, time_since_unload, SLE_UINT8),
SLE_VAR(Station, delete_ctr, SLE_UINT8),
SLE_VAR(Station, owner, SLE_UINT8),
SLE_VAR(Station, facilities, SLE_UINT8),
SLE_VAR(Station, airport.type, SLE_UINT8),
SLE_CONDVAR(Station, airport.flags, SLE_VAR_U64 | SLE_FILE_U16, SL_MIN_VERSION, SLV_3),
SLE_CONDVAR(Station, airport.flags, SLE_VAR_U64 | SLE_FILE_U32, SLV_3, SLV_46),
SLE_CONDVAR(Station, airport.flags, SLE_UINT64, SLV_46, SL_MAX_VERSION),
SLE_CONDVAR(Station, last_vehicle_type, SLE_UINT8, SLV_26, SL_MAX_VERSION),
SLE_CONDVAR(Station, build_date, SLE_FILE_U16 | SLE_VAR_I32, SLV_3, SLV_31),
SLE_CONDVAR(Station, build_date, SLE_INT32, SLV_31, SL_MAX_VERSION),
SLE_CONDREF(Station, bus_stops, REF_ROADSTOPS, SLV_6, SL_MAX_VERSION),
SLE_CONDREF(Station, truck_stops, REF_ROADSTOPS, SLV_6, SL_MAX_VERSION),
/* Used by newstations for graphic variations */
SLE_CONDVAR(Station, random_bits, SLE_UINT16, SLV_27, SL_MAX_VERSION),
SLE_CONDVAR(Station, waiting_triggers, SLE_UINT8, SLV_27, SL_MAX_VERSION),
SLEG_CONDVAR("num_specs", SlStationSpecList::last_num_specs, SLE_UINT8, SLV_27, SL_MAX_VERSION),
SLE_CONDREFLIST(Station, loading_vehicles, REF_VEHICLE, SLV_57, SL_MAX_VERSION),
SLEG_STRUCTLIST("goods", SlStationGoods),
SLEG_CONDSTRUCTLIST("speclist", SlStationSpecList, SLV_27, SL_MAX_VERSION),
};
struct STNSChunkHandler : ChunkHandler {
STNSChunkHandler() : ChunkHandler('STNS', CH_READONLY) {}
void Load() const override
{
const std::vector<SaveLoad> slt = SlCompatTableHeader(_old_station_desc, _old_station_sl_compat);
_cargo_source_xy = 0;
_cargo_days = 0;
_cargo_feeder_share = 0;
int index;
while ((index = SlIterateArray()) != -1) {
Station *st = new (index) Station();
_waiting_acceptance = 0;
SlObject(st, slt);
}
}
void FixPointers() const override
{
/* From SLV_123 we store stations in STNN; before that in STNS. So do not
* fix pointers when the version is SLV_123 or up, as that would fix
* pointers twice: once in STNN chunk and once here. */
if (!IsSavegameVersionBefore(SLV_123)) return;
for (Station *st : Station::Iterate()) {
SlObject(st, _old_station_desc);
}
}
};
class SlRoadStopTileData : public DefaultSaveLoadHandler<SlRoadStopTileData, BaseStation> {
public:
inline static const SaveLoad description[] = {
SLE_VAR(RoadStopTileData, tile, SLE_UINT32),
SLE_VAR(RoadStopTileData, random_bits, SLE_UINT8),
SLE_VAR(RoadStopTileData, animation_frame, SLE_UINT8),
};
inline const static SaveLoadCompatTable compat_description = {};
static uint8 last_num_specs; ///< Number of specs of the last loaded station.
void Save(BaseStation *bst) const override
{
SlSetStructListLength(bst->custom_roadstop_tile_data.size());
for (uint i = 0; i < bst->custom_roadstop_tile_data.size(); i++) {
SlObject(&bst->custom_roadstop_tile_data[i], this->GetDescription());
}
}
void Load(BaseStation *bst) const override
{
uint32 num_tiles = (uint32)SlGetStructListLength(UINT32_MAX);
bst->custom_roadstop_tile_data.resize(num_tiles);
for (uint i = 0; i < num_tiles; i++) {
SlObject(&bst->custom_roadstop_tile_data[i], this->GetLoadDescription());
}
}
};
/**
* SaveLoad handler for the BaseStation, which all other stations / waypoints
* make use of.
*/
class SlStationBase : public DefaultSaveLoadHandler<SlStationBase, BaseStation> {
public:
inline static const SaveLoad description[] = {
SLE_VAR(BaseStation, xy, SLE_UINT32),
SLE_REF(BaseStation, town, REF_TOWN),
SLE_VAR(BaseStation, string_id, SLE_STRINGID),
SLE_SSTR(BaseStation, name, SLE_STR | SLF_ALLOW_CONTROL),
SLE_VAR(BaseStation, delete_ctr, SLE_UINT8),
SLE_VAR(BaseStation, owner, SLE_UINT8),
SLE_VAR(BaseStation, facilities, SLE_UINT8),
SLE_VAR(BaseStation, build_date, SLE_INT32),
/* Used by newstations for graphic variations */
SLE_VAR(BaseStation, random_bits, SLE_UINT16),
SLE_VAR(BaseStation, waiting_triggers, SLE_UINT8),
SLEG_CONDVAR("num_specs", SlStationSpecList::last_num_specs, SLE_UINT8, SL_MIN_VERSION, SLV_SAVELOAD_LIST_LENGTH),
};
inline const static SaveLoadCompatTable compat_description = _station_base_sl_compat;
void Save(BaseStation *bst) const override
{
SlObject(bst, this->GetDescription());
}
void Load(BaseStation *bst) const override
{
SlObject(bst, this->GetLoadDescription());
}
void FixPointers(BaseStation *bst) const override
{
SlObject(bst, this->GetDescription());
}
};
/**
* SaveLoad handler for a normal station (read: not a waypoint).
*/
class SlStationNormal : public DefaultSaveLoadHandler<SlStationNormal, BaseStation> {
public:
inline static const SaveLoad description[] = {
SLEG_STRUCT("base", SlStationBase),
SLE_VAR(Station, train_station.tile, SLE_UINT32),
SLE_VAR(Station, train_station.w, SLE_FILE_U8 | SLE_VAR_U16),
SLE_VAR(Station, train_station.h, SLE_FILE_U8 | SLE_VAR_U16),
SLE_REF(Station, bus_stops, REF_ROADSTOPS),
SLE_REF(Station, truck_stops, REF_ROADSTOPS),
SLE_CONDVAR(Station, ship_station.tile, SLE_UINT32, SLV_MULTITILE_DOCKS, SL_MAX_VERSION),
SLE_CONDVAR(Station, ship_station.w, SLE_FILE_U8 | SLE_VAR_U16, SLV_MULTITILE_DOCKS, SL_MAX_VERSION),
SLE_CONDVAR(Station, ship_station.h, SLE_FILE_U8 | SLE_VAR_U16, SLV_MULTITILE_DOCKS, SL_MAX_VERSION),
SLE_CONDVAR(Station, docking_station.tile, SLE_UINT32, SLV_MULTITILE_DOCKS, SL_MAX_VERSION),
SLE_CONDVAR(Station, docking_station.w, SLE_FILE_U8 | SLE_VAR_U16, SLV_MULTITILE_DOCKS, SL_MAX_VERSION),
SLE_CONDVAR(Station, docking_station.h, SLE_FILE_U8 | SLE_VAR_U16, SLV_MULTITILE_DOCKS, SL_MAX_VERSION),
SLE_VAR(Station, airport.tile, SLE_UINT32),
SLE_CONDVAR(Station, airport.w, SLE_FILE_U8 | SLE_VAR_U16, SLV_140, SL_MAX_VERSION),
SLE_CONDVAR(Station, airport.h, SLE_FILE_U8 | SLE_VAR_U16, SLV_140, SL_MAX_VERSION),
SLE_VAR(Station, airport.type, SLE_UINT8),
SLE_CONDVAR(Station, airport.layout, SLE_UINT8, SLV_145, SL_MAX_VERSION),
SLE_VAR(Station, airport.flags, SLE_UINT64),
SLE_CONDVAR(Station, airport.rotation, SLE_UINT8, SLV_145, SL_MAX_VERSION),
SLEG_CONDARR("storage", _old_st_persistent_storage.storage, SLE_UINT32, 16, SLV_145, SLV_161),
SLE_CONDREF(Station, airport.psa, REF_STORAGE, SLV_161, SL_MAX_VERSION),
SLE_VAR(Station, indtype, SLE_UINT8),
SLE_VAR(Station, time_since_load, SLE_UINT8),
SLE_VAR(Station, time_since_unload, SLE_UINT8),
SLE_VAR(Station, last_vehicle_type, SLE_UINT8),
SLE_VAR(Station, had_vehicle_of_type, SLE_UINT8),
SLE_REFLIST(Station, loading_vehicles, REF_VEHICLE),
SLE_CONDVAR(Station, always_accepted, SLE_FILE_U32 | SLE_VAR_U64, SLV_127, SLV_EXTEND_CARGOTYPES),
SLE_CONDVAR(Station, always_accepted, SLE_UINT64, SLV_EXTEND_CARGOTYPES, SL_MAX_VERSION),
SLEG_CONDSTRUCTLIST("speclist", SlRoadStopTileData, SLV_NEWGRF_ROAD_STOPS, SL_MAX_VERSION),
SLEG_STRUCTLIST("goods", SlStationGoods),
};
inline const static SaveLoadCompatTable compat_description = _station_normal_sl_compat;
void Save(BaseStation *bst) const
{
if ((bst->facilities & FACIL_WAYPOINT) != 0) return;
SlObject(bst, this->GetDescription());
}
void Load(BaseStation *bst) const
{
if ((bst->facilities & FACIL_WAYPOINT) != 0) return;
SlObject(bst, this->GetLoadDescription());
}
void FixPointers(BaseStation *bst) const
{
if ((bst->facilities & FACIL_WAYPOINT) != 0) return;
SlObject(bst, this->GetDescription());
}
};
class SlStationWaypoint : public DefaultSaveLoadHandler<SlStationWaypoint, BaseStation> {
public:
inline static const SaveLoad description[] = {
SLEG_STRUCT("base", SlStationBase),
SLE_VAR(Waypoint, town_cn, SLE_UINT16),
SLE_CONDVAR(Waypoint, train_station.tile, SLE_UINT32, SLV_124, SL_MAX_VERSION),
SLE_CONDVAR(Waypoint, train_station.w, SLE_FILE_U8 | SLE_VAR_U16, SLV_124, SL_MAX_VERSION),
SLE_CONDVAR(Waypoint, train_station.h, SLE_FILE_U8 | SLE_VAR_U16, SLV_124, SL_MAX_VERSION),
};
inline const static SaveLoadCompatTable compat_description = _station_waypoint_sl_compat;
void Save(BaseStation *bst) const
{
if ((bst->facilities & FACIL_WAYPOINT) == 0) return;
SlObject(bst, this->GetDescription());
}
void Load(BaseStation *bst) const
{
if ((bst->facilities & FACIL_WAYPOINT) == 0) return;
SlObject(bst, this->GetLoadDescription());
}
void FixPointers(BaseStation *bst) const
{
if ((bst->facilities & FACIL_WAYPOINT) == 0) return;
SlObject(bst, this->GetDescription());
}
};
static const SaveLoad _station_desc[] = {
SLE_SAVEBYTE(BaseStation, facilities),
SLEG_STRUCT("normal", SlStationNormal),
SLEG_STRUCT("waypoint", SlStationWaypoint),
SLEG_CONDSTRUCTLIST("speclist", SlStationSpecList, SLV_27, SL_MAX_VERSION),
SLEG_CONDSTRUCTLIST("roadstopspeclist", SlRoadStopSpecList, SLV_NEWGRF_ROAD_STOPS, SL_MAX_VERSION),
};
struct STNNChunkHandler : ChunkHandler {
STNNChunkHandler() : ChunkHandler('STNN', CH_TABLE) {}
void Save() const override
{
SlTableHeader(_station_desc);
/* Write the stations */
for (BaseStation *st : BaseStation::Iterate()) {
SlSetArrayIndex(st->index);
SlObject(st, _station_desc);
}
}
void Load() const override
{
const std::vector<SaveLoad> slt = SlCompatTableHeader(_station_desc, _station_sl_compat);
_old_num_flows = 0;
int index;
while ((index = SlIterateArray()) != -1) {
bool waypoint = (SlReadByte() & FACIL_WAYPOINT) != 0;
BaseStation *bst = waypoint ? (BaseStation *)new (index) Waypoint() : new (index) Station();
SlObject(bst, slt);
}
}
void FixPointers() const override
{
/* From SLV_123 we store stations in STNN; before that in STNS. So do not
* fix pointers when the version is below SLV_123, as that would fix
* pointers twice: once in STNS chunk and once here. */
if (IsSavegameVersionBefore(SLV_123)) return;
for (BaseStation *bst : BaseStation::Iterate()) {
SlObject(bst, _station_desc);
}
}
};
struct ROADChunkHandler : ChunkHandler {
ROADChunkHandler() : ChunkHandler('ROAD', CH_TABLE) {}
void Save() const override
{
SlTableHeader(_roadstop_desc);
for (RoadStop *rs : RoadStop::Iterate()) {
SlSetArrayIndex(rs->index);
SlObject(rs, _roadstop_desc);
}
}
void Load() const override
{
const std::vector<SaveLoad> slt = SlCompatTableHeader(_roadstop_desc, _roadstop_sl_compat);
int index;
while ((index = SlIterateArray()) != -1) {
RoadStop *rs = new (index) RoadStop(INVALID_TILE);
SlObject(rs, slt);
}
}
void FixPointers() const override
{
for (RoadStop *rs : RoadStop::Iterate()) {
SlObject(rs, _roadstop_desc);
}
}
};
static const STNSChunkHandler STNS;
static const STNNChunkHandler STNN;
static const ROADChunkHandler ROAD;
static const ChunkHandlerRef station_chunk_handlers[] = {
STNS,
STNN,
ROAD,
};
extern const ChunkHandlerTable _station_chunk_handlers(station_chunk_handlers);
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