mirror of
https://github.com/OpenTTD/OpenTTD
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245 lines
6.8 KiB
C++
245 lines
6.8 KiB
C++
/*
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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 labelmaps_sl.cpp Code handling saving and loading of rail type label mappings */
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#include "../stdafx.h"
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#include "saveload.h"
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#include "compat/labelmaps_sl_compat.h"
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#include "saveload_internal.h"
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#include "../rail.h"
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#include "../road.h"
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#include "../station_map.h"
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#include "../tunnelbridge_map.h"
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#include "../safeguards.h"
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/** Container for a label for rail or road type conversion. */
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template <typename T>
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struct LabelObject {
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T label = {}; ///< Label of rail or road type.
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uint8_t subtype = 0; ///< Subtype of type (road or tram).
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};
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static std::vector<LabelObject<RailTypeLabel>> _railtype_list;
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static std::vector<LabelObject<RoadTypeLabel>> _roadtype_list;
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/**
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* Test if any saved rail type labels are different to the currently loaded
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* rail types. Rail types stored in the map will be converted if necessary.
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*/
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static void ConvertRailTypes()
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{
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std::vector<RailType> railtype_conversion_map;
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bool needs_conversion = false;
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for (auto it = std::begin(_railtype_list); it != std::end(_railtype_list); ++it) {
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RailType rt = GetRailTypeByLabel(it->label);
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if (rt == INVALID_RAILTYPE) {
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rt = RAILTYPE_RAIL;
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}
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railtype_conversion_map.push_back(rt);
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/* Conversion is needed if the rail type is in a different position than the list. */
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if (it->label != 0 && rt != std::distance(std::begin(_railtype_list), it)) needs_conversion = true;
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}
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if (!needs_conversion) return;
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for (const auto t : Map::Iterate()) {
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switch (GetTileType(t)) {
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case MP_RAILWAY:
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SetRailType(t, railtype_conversion_map[GetRailType(t)]);
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break;
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case MP_ROAD:
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if (IsLevelCrossing(t)) {
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SetRailType(t, railtype_conversion_map[GetRailType(t)]);
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}
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break;
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case MP_STATION:
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if (HasStationRail(t)) {
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SetRailType(t, railtype_conversion_map[GetRailType(t)]);
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}
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break;
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case MP_TUNNELBRIDGE:
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if (GetTunnelBridgeTransportType(t) == TRANSPORT_RAIL) {
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SetRailType(t, railtype_conversion_map[GetRailType(t)]);
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}
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break;
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default:
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break;
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}
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}
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}
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/**
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* Test if any saved road type labels are different to the currently loaded
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* road types. Road types stored in the map will be converted if necessary.
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*/
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static void ConvertRoadTypes()
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{
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std::vector<RoadType> roadtype_conversion_map;
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bool needs_conversion = false;
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for (auto it = std::begin(_roadtype_list); it != std::end(_roadtype_list); ++it) {
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RoadType rt = GetRoadTypeByLabel(it->label);
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if (rt == INVALID_ROADTYPE || GetRoadTramType(rt) != it->subtype) {
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rt = it->subtype ? ROADTYPE_TRAM : ROADTYPE_ROAD;
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}
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roadtype_conversion_map.push_back(rt);
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/* Conversion is needed if the road type is in a different position than the list. */
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if (it->label != 0 && rt != std::distance(std::begin(_roadtype_list), it)) needs_conversion = true;
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}
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if (!needs_conversion) return;
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for (TileIndex t : Map::Iterate()) {
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switch (GetTileType(t)) {
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case MP_ROAD:
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if (RoadType rt = GetRoadTypeRoad(t); rt != INVALID_ROADTYPE) SetRoadTypeRoad(t, roadtype_conversion_map[rt]);
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if (RoadType rt = GetRoadTypeTram(t); rt != INVALID_ROADTYPE) SetRoadTypeTram(t, roadtype_conversion_map[rt]);
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break;
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case MP_STATION:
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if (IsStationRoadStop(t) || IsRoadWaypoint(t)) {
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if (RoadType rt = GetRoadTypeRoad(t); rt != INVALID_ROADTYPE) SetRoadTypeRoad(t, roadtype_conversion_map[rt]);
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if (RoadType rt = GetRoadTypeTram(t); rt != INVALID_ROADTYPE) SetRoadTypeTram(t, roadtype_conversion_map[rt]);
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}
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break;
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case MP_TUNNELBRIDGE:
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if (GetTunnelBridgeTransportType(t) == TRANSPORT_ROAD) {
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if (RoadType rt = GetRoadTypeRoad(t); rt != INVALID_ROADTYPE) SetRoadTypeRoad(t, roadtype_conversion_map[rt]);
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if (RoadType rt = GetRoadTypeTram(t); rt != INVALID_ROADTYPE) SetRoadTypeTram(t, roadtype_conversion_map[rt]);
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}
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break;
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default:
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break;
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}
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}
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}
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/** Populate label lists with current values. */
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static void SetCurrentLabelLists()
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{
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_railtype_list.clear();
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for (RailType rt = RAILTYPE_BEGIN; rt != RAILTYPE_END; rt++) {
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_railtype_list.push_back({GetRailTypeInfo(rt)->label, 0});
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}
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_roadtype_list.clear();
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for (RoadType rt = ROADTYPE_BEGIN; rt != ROADTYPE_END; rt++) {
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_roadtype_list.push_back({GetRoadTypeInfo(rt)->label, GetRoadTramType(rt)});
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}
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}
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/** Perform rail type and road type conversion if necessary. */
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void AfterLoadLabelMaps()
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{
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ConvertRailTypes();
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ConvertRoadTypes();
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SetCurrentLabelLists();
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}
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void ResetLabelMaps()
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{
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_railtype_list.clear();
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_roadtype_list.clear();
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}
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struct RAILChunkHandler : ChunkHandler {
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RAILChunkHandler() : ChunkHandler('RAIL', CH_TABLE) {}
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static inline const SaveLoad description[] = {
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SLE_VAR(LabelObject<RailTypeLabel>, label, SLE_UINT32),
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};
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void Save() const override
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{
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SlTableHeader(description);
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LabelObject<RailTypeLabel> lo;
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for (RailType r = RAILTYPE_BEGIN; r != RAILTYPE_END; r++) {
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lo.label = GetRailTypeInfo(r)->label;
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SlSetArrayIndex(r);
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SlObject(&lo, description);
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}
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}
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void Load() const override
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{
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const std::vector<SaveLoad> slt = SlCompatTableHeader(description, _label_object_sl_compat);
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_railtype_list.reserve(RAILTYPE_END);
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LabelObject<RailTypeLabel> lo;
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while (SlIterateArray() != -1) {
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SlObject(&lo, slt);
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_railtype_list.push_back(lo);
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}
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}
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};
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struct ROTTChunkHandler : ChunkHandler {
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ROTTChunkHandler() : ChunkHandler('ROTT', CH_TABLE) {}
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static inline const SaveLoad description[] = {
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SLE_VAR(LabelObject<RoadTypeLabel>, label, SLE_UINT32),
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SLE_VAR(LabelObject<RoadTypeLabel>, subtype, SLE_UINT8),
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};
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void Save() const override
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{
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SlTableHeader(description);
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LabelObject<RoadTypeLabel> lo;
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for (RoadType r = ROADTYPE_BEGIN; r != ROADTYPE_END; r++) {
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const RoadTypeInfo *rti = GetRoadTypeInfo(r);
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lo.label = rti->label;
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lo.subtype = GetRoadTramType(r);
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SlSetArrayIndex(r);
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SlObject(&lo, description);
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}
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}
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void Load() const override
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{
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const std::vector<SaveLoad> slt = SlCompatTableHeader(description, _label_object_sl_compat);
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_roadtype_list.reserve(ROADTYPE_END);
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LabelObject<RoadTypeLabel> lo;
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while (SlIterateArray() != -1) {
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SlObject(&lo, slt);
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_roadtype_list.push_back(lo);
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}
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}
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};
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static const RAILChunkHandler RAIL;
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static const ROTTChunkHandler ROTT;
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static const ChunkHandlerRef labelmaps_chunk_handlers[] = {
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RAIL,
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ROTT,
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};
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extern const ChunkHandlerTable _labelmaps_chunk_handlers(labelmaps_chunk_handlers);
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