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Location: cpp/openttd-patchpack/source/src/saveload/labelmaps_sl.cpp
r26786:0e3d092a79a0
3.5 KiB
text/x-c
Codechange: add map size related functions to Map structure
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 | /*
* 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 labelmaps_sl.cpp Code handling saving and loading of rail type label mappings */
#include "../stdafx.h"
#include "saveload.h"
#include "compat/labelmaps_sl_compat.h"
#include "saveload_internal.h"
#include "../station_map.h"
#include "../tunnelbridge_map.h"
#include "../safeguards.h"
static std::vector<RailTypeLabel> _railtype_list;
/**
* Test if any saved rail type labels are different to the currently loaded
* rail types, which therefore requires conversion.
* @return true if (and only if) conversion due to rail type changes is needed.
*/
static bool NeedRailTypeConversion()
{
for (uint i = 0; i < _railtype_list.size(); i++) {
if ((RailType)i < RAILTYPE_END) {
const RailtypeInfo *rti = GetRailTypeInfo((RailType)i);
if (rti->label != _railtype_list[i]) return true;
} else {
if (_railtype_list[i] != 0) return true;
}
}
/* No rail type conversion is necessary */
return false;
}
void AfterLoadLabelMaps()
{
if (NeedRailTypeConversion()) {
std::vector<RailType> railtype_conversion_map;
for (uint i = 0; i < _railtype_list.size(); i++) {
RailType r = GetRailTypeByLabel(_railtype_list[i]);
if (r == INVALID_RAILTYPE) r = RAILTYPE_BEGIN;
railtype_conversion_map.push_back(r);
}
for (TileIndex t = 0; t < MapSize(); t++) {
switch (GetTileType(t)) {
case MP_RAILWAY:
SetRailType(t, railtype_conversion_map[GetRailType(t)]);
break;
case MP_ROAD:
if (IsLevelCrossing(t)) {
SetRailType(t, railtype_conversion_map[GetRailType(t)]);
}
break;
case MP_STATION:
if (HasStationRail(t)) {
SetRailType(t, railtype_conversion_map[GetRailType(t)]);
}
break;
case MP_TUNNELBRIDGE:
if (GetTunnelBridgeTransportType(t) == TRANSPORT_RAIL) {
SetRailType(t, railtype_conversion_map[GetRailType(t)]);
}
break;
default:
break;
}
}
}
ResetLabelMaps();
}
void ResetLabelMaps()
{
_railtype_list.clear();
}
/** Container for a label for SaveLoad system */
struct LabelObject {
uint32 label;
};
static const SaveLoad _label_object_desc[] = {
SLE_VAR(LabelObject, label, SLE_UINT32),
};
struct RAILChunkHandler : ChunkHandler {
RAILChunkHandler() : ChunkHandler('RAIL', CH_TABLE) {}
void Save() const override
{
SlTableHeader(_label_object_desc);
LabelObject lo;
for (RailType r = RAILTYPE_BEGIN; r != RAILTYPE_END; r++) {
lo.label = GetRailTypeInfo(r)->label;
SlSetArrayIndex(r);
SlObject(&lo, _label_object_desc);
}
}
void Load() const override
{
const std::vector<SaveLoad> slt = SlCompatTableHeader(_label_object_desc, _label_object_sl_compat);
ResetLabelMaps();
LabelObject lo;
while (SlIterateArray() != -1) {
SlObject(&lo, slt);
_railtype_list.push_back((RailTypeLabel)lo.label);
}
}
};
static const RAILChunkHandler RAIL;
static const ChunkHandlerRef labelmaps_chunk_handlers[] = {
RAIL,
};
extern const ChunkHandlerTable _labelmaps_chunk_handlers(labelmaps_chunk_handlers);
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