OpenTTD
town_sl.cpp
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1 /* $Id$ */
2 
3 /*
4  * This file is part of OpenTTD.
5  * 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.
6  * 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.
7  * 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/>.
8  */
9 
12 #include "../stdafx.h"
13 #include "../newgrf_house.h"
14 #include "../town.h"
15 #include "../landscape.h"
16 #include "../subsidy_func.h"
17 #include "../strings_func.h"
18 
19 #include "saveload.h"
20 #include "newgrf_sl.h"
21 
22 #include "../safeguards.h"
23 
28 {
29  Town *town;
30  InitializeBuildingCounts();
31  RebuildTownKdtree();
32 
33  /* Reset town population and num_houses */
34  FOR_ALL_TOWNS(town) {
35  town->cache.population = 0;
36  town->cache.num_houses = 0;
37  }
38 
39  for (TileIndex t = 0; t < MapSize(); t++) {
40  if (!IsTileType(t, MP_HOUSE)) continue;
41 
42  HouseID house_id = GetHouseType(t);
43  town = Town::GetByTile(t);
44  IncreaseBuildingCount(town, house_id);
45  if (IsHouseCompleted(t)) town->cache.population += HouseSpec::Get(house_id)->population;
46 
47  /* Increase the number of houses for every house, but only once. */
48  if (GetHouseNorthPart(house_id) == 0) town->cache.num_houses++;
49  }
50 
51  /* Update the population and num_house dependent values */
52  FOR_ALL_TOWNS(town) {
53  UpdateTownRadius(town);
54  UpdateTownCargoes(town);
55  }
57 }
58 
68 {
69  for (TileIndex t = 0; t < MapSize(); t++) {
70  if (!IsTileType(t, MP_HOUSE)) continue;
71 
72  HouseID house_id = GetCleanHouseType(t);
73  if (!HouseSpec::Get(house_id)->enabled && house_id >= NEW_HOUSE_OFFSET) {
74  /* The specs for this type of house are not available any more, so
75  * replace it with the substitute original house type. */
76  house_id = _house_mngr.GetSubstituteID(house_id);
77  SetHouseType(t, house_id);
78  }
79  }
80 
81  /* Check for cases when a NewGRF has set a wrong house substitute type. */
82  for (TileIndex t = 0; t < MapSize(); t++) {
83  if (!IsTileType(t, MP_HOUSE)) continue;
84 
85  HouseID house_type = GetCleanHouseType(t);
86  TileIndex north_tile = t + GetHouseNorthPart(house_type); // modifies 'house_type'!
87  if (t == north_tile) {
88  const HouseSpec *hs = HouseSpec::Get(house_type);
89  bool valid_house = true;
90  if (hs->building_flags & TILE_SIZE_2x1) {
91  TileIndex tile = t + TileDiffXY(1, 0);
92  if (!IsTileType(tile, MP_HOUSE) || GetCleanHouseType(tile) != house_type + 1) valid_house = false;
93  } else if (hs->building_flags & TILE_SIZE_1x2) {
94  TileIndex tile = t + TileDiffXY(0, 1);
95  if (!IsTileType(tile, MP_HOUSE) || GetCleanHouseType(tile) != house_type + 1) valid_house = false;
96  } else if (hs->building_flags & TILE_SIZE_2x2) {
97  TileIndex tile = t + TileDiffXY(0, 1);
98  if (!IsTileType(tile, MP_HOUSE) || GetCleanHouseType(tile) != house_type + 1) valid_house = false;
99  tile = t + TileDiffXY(1, 0);
100  if (!IsTileType(tile, MP_HOUSE) || GetCleanHouseType(tile) != house_type + 2) valid_house = false;
101  tile = t + TileDiffXY(1, 1);
102  if (!IsTileType(tile, MP_HOUSE) || GetCleanHouseType(tile) != house_type + 3) valid_house = false;
103  }
104  /* If not all tiles of this house are present remove the house.
105  * The other tiles will get removed later in this loop because
106  * their north tile is not the correct type anymore. */
107  if (!valid_house) DoClearSquare(t);
108  } else if (!IsTileType(north_tile, MP_HOUSE) || GetCleanHouseType(north_tile) != house_type) {
109  /* This tile should be part of a multi-tile building but the
110  * north tile of this house isn't on the map. */
111  DoClearSquare(t);
112  }
113  }
114 
116 }
117 
119 static const SaveLoad _town_desc[] = {
120  SLE_CONDVAR(Town, xy, SLE_FILE_U16 | SLE_VAR_U32, SL_MIN_VERSION, SLV_6),
121  SLE_CONDVAR(Town, xy, SLE_UINT32, SLV_6, SL_MAX_VERSION),
122 
124  SLE_CONDNULL(4, SLV_3, SLV_85),
126 
127  SLE_CONDVAR(Town, townnamegrfid, SLE_UINT32, SLV_66, SL_MAX_VERSION),
128  SLE_VAR(Town, townnametype, SLE_UINT16),
129  SLE_VAR(Town, townnameparts, SLE_UINT32),
131 
132  SLE_VAR(Town, flags, SLE_UINT8),
133  SLE_CONDVAR(Town, statues, SLE_FILE_U8 | SLE_VAR_U16, SL_MIN_VERSION, SLV_104),
134  SLE_CONDVAR(Town, statues, SLE_UINT16, SLV_104, SL_MAX_VERSION),
135 
137 
138  SLE_CONDVAR(Town, have_ratings, SLE_FILE_U8 | SLE_VAR_U16, SL_MIN_VERSION, SLV_104),
139  SLE_CONDVAR(Town, have_ratings, SLE_UINT16, SLV_104, SL_MAX_VERSION),
140  SLE_CONDARR(Town, ratings, SLE_INT16, 8, SL_MIN_VERSION, SLV_104),
141  SLE_CONDARR(Town, ratings, SLE_INT16, MAX_COMPANIES, SLV_104, SL_MAX_VERSION),
142  /* failed bribe attempts are stored since savegame format 4 */
143  SLE_CONDARR(Town, unwanted, SLE_INT8, 8, SLV_4, SLV_104),
144  SLE_CONDARR(Town, unwanted, SLE_INT8, MAX_COMPANIES, SLV_104, SL_MAX_VERSION),
145 
146  SLE_CONDVAR(Town, supplied[CT_PASSENGERS].old_max, SLE_FILE_U16 | SLE_VAR_U32, SL_MIN_VERSION, SLV_9),
147  SLE_CONDVAR(Town, supplied[CT_MAIL].old_max, SLE_FILE_U16 | SLE_VAR_U32, SL_MIN_VERSION, SLV_9),
148  SLE_CONDVAR(Town, supplied[CT_PASSENGERS].new_max, SLE_FILE_U16 | SLE_VAR_U32, SL_MIN_VERSION, SLV_9),
149  SLE_CONDVAR(Town, supplied[CT_MAIL].new_max, SLE_FILE_U16 | SLE_VAR_U32, SL_MIN_VERSION, SLV_9),
150  SLE_CONDVAR(Town, supplied[CT_PASSENGERS].old_act, SLE_FILE_U16 | SLE_VAR_U32, SL_MIN_VERSION, SLV_9),
151  SLE_CONDVAR(Town, supplied[CT_MAIL].old_act, SLE_FILE_U16 | SLE_VAR_U32, SL_MIN_VERSION, SLV_9),
152  SLE_CONDVAR(Town, supplied[CT_PASSENGERS].new_act, SLE_FILE_U16 | SLE_VAR_U32, SL_MIN_VERSION, SLV_9),
153  SLE_CONDVAR(Town, supplied[CT_MAIL].new_act, SLE_FILE_U16 | SLE_VAR_U32, SL_MIN_VERSION, SLV_9),
154 
155  SLE_CONDVAR(Town, supplied[CT_PASSENGERS].old_max, SLE_UINT32, SLV_9, SLV_165),
156  SLE_CONDVAR(Town, supplied[CT_MAIL].old_max, SLE_UINT32, SLV_9, SLV_165),
157  SLE_CONDVAR(Town, supplied[CT_PASSENGERS].new_max, SLE_UINT32, SLV_9, SLV_165),
158  SLE_CONDVAR(Town, supplied[CT_MAIL].new_max, SLE_UINT32, SLV_9, SLV_165),
159  SLE_CONDVAR(Town, supplied[CT_PASSENGERS].old_act, SLE_UINT32, SLV_9, SLV_165),
160  SLE_CONDVAR(Town, supplied[CT_MAIL].old_act, SLE_UINT32, SLV_9, SLV_165),
161  SLE_CONDVAR(Town, supplied[CT_PASSENGERS].new_act, SLE_UINT32, SLV_9, SLV_165),
162  SLE_CONDVAR(Town, supplied[CT_MAIL].new_act, SLE_UINT32, SLV_9, SLV_165),
163 
165 
166  SLE_CONDVAR(Town, received[TE_FOOD].old_act, SLE_UINT16, SL_MIN_VERSION, SLV_165),
167  SLE_CONDVAR(Town, received[TE_WATER].old_act, SLE_UINT16, SL_MIN_VERSION, SLV_165),
168  SLE_CONDVAR(Town, received[TE_FOOD].new_act, SLE_UINT16, SL_MIN_VERSION, SLV_165),
169  SLE_CONDVAR(Town, received[TE_WATER].new_act, SLE_UINT16, SL_MIN_VERSION, SLV_165),
170 
171  SLE_CONDARR(Town, goal, SLE_UINT32, NUM_TE, SLV_165, SL_MAX_VERSION),
172 
174 
175  SLE_CONDVAR(Town, time_until_rebuild, SLE_FILE_U8 | SLE_VAR_U16, SL_MIN_VERSION, SLV_54),
176  SLE_CONDVAR(Town, grow_counter, SLE_FILE_U8 | SLE_VAR_U16, SL_MIN_VERSION, SLV_54),
177  SLE_CONDVAR(Town, growth_rate, SLE_FILE_U8 | SLE_VAR_I16, SL_MIN_VERSION, SLV_54),
178 
179  SLE_CONDVAR(Town, time_until_rebuild, SLE_UINT16, SLV_54, SL_MAX_VERSION),
180  SLE_CONDVAR(Town, grow_counter, SLE_UINT16, SLV_54, SL_MAX_VERSION),
181 
182  SLE_CONDVAR(Town, growth_rate, SLE_FILE_I16 | SLE_VAR_U16, SLV_54, SLV_165),
183  SLE_CONDVAR(Town, growth_rate, SLE_UINT16, SLV_165, SL_MAX_VERSION),
184 
185  SLE_VAR(Town, fund_buildings_months, SLE_UINT8),
186  SLE_VAR(Town, road_build_months, SLE_UINT8),
187 
188  SLE_CONDVAR(Town, exclusivity, SLE_UINT8, SLV_2, SL_MAX_VERSION),
189  SLE_CONDVAR(Town, exclusive_counter, SLE_UINT8, SLV_2, SL_MAX_VERSION),
190 
191  SLE_CONDVAR(Town, larger_town, SLE_BOOL, SLV_56, SL_MAX_VERSION),
192  SLE_CONDVAR(Town, layout, SLE_UINT8, SLV_113, SL_MAX_VERSION),
193 
195 
196  SLE_CONDVAR(Town, cargo_produced, SLE_FILE_U32 | SLE_VAR_U64, SLV_166, SLV_EXTEND_CARGOTYPES),
197  SLE_CONDVAR(Town, cargo_produced, SLE_UINT64, SLV_EXTEND_CARGOTYPES, SL_MAX_VERSION),
198 
199  /* reserve extra space in savegame here. (currently 30 bytes) */
201 
202  SLE_END()
203 };
204 
205 static const SaveLoad _town_supplied_desc[] = {
210 
211  SLE_END()
212 };
213 
214 static const SaveLoad _town_received_desc[] = {
219 
220  SLE_END()
221 };
222 
223 static void Save_HIDS()
224 {
225  Save_NewGRFMapping(_house_mngr);
226 }
227 
228 static void Load_HIDS()
229 {
230  Load_NewGRFMapping(_house_mngr);
231 }
232 
233 const SaveLoad *GetTileMatrixDesc()
234 {
235  /* Here due to private member vars. */
236  static const SaveLoad _tilematrix_desc[] = {
237  SLE_VAR(AcceptanceMatrix, area.tile, SLE_UINT32),
238  SLE_VAR(AcceptanceMatrix, area.w, SLE_UINT16),
239  SLE_VAR(AcceptanceMatrix, area.h, SLE_UINT16),
240  SLE_END()
241  };
242 
243  return _tilematrix_desc;
244 }
245 
246 static void RealSave_Town(Town *t)
247 {
248  SlObject(t, _town_desc);
249 
250  for (CargoID i = 0; i < NUM_CARGO; i++) {
251  SlObject(&t->supplied[i], _town_supplied_desc);
252  }
253  for (int i = TE_BEGIN; i < NUM_TE; i++) {
254  SlObject(&t->received[i], _town_received_desc);
255  }
256 
257  if (IsSavegameVersionBefore(SLV_166)) return;
258 
259  SlObject(&t->cargo_accepted, GetTileMatrixDesc());
260  if (t->cargo_accepted.area.w != 0) {
261  uint arr_len = t->cargo_accepted.area.w / AcceptanceMatrix::GRID * t->cargo_accepted.area.h / AcceptanceMatrix::GRID;
262  SlArray(t->cargo_accepted.data, arr_len, SLE_UINT32);
263  }
264 }
265 
266 static void Save_TOWN()
267 {
268  Town *t;
269 
270  FOR_ALL_TOWNS(t) {
271  SlSetArrayIndex(t->index);
272  SlAutolength((AutolengthProc*)RealSave_Town, t);
273  }
274 }
275 
276 static void Load_TOWN()
277 {
278  int index;
280 
281  while ((index = SlIterateArray()) != -1) {
282  Town *t = new (index) Town();
283  SlObject(t, _town_desc);
284 
285  for (CargoID i = 0; i < num_cargo; i++) {
286  SlObject(&t->supplied[i], _town_supplied_desc);
287  }
288  for (int i = TE_BEGIN; i < TE_END; i++) {
289  SlObject(&t->received[i], _town_received_desc);
290  }
291 
292  if (t->townnamegrfid == 0 && !IsInsideMM(t->townnametype, SPECSTR_TOWNNAME_START, SPECSTR_TOWNNAME_LAST + 1) && GetStringTab(t->townnametype) != TEXT_TAB_OLD_CUSTOM) {
293  SlErrorCorrupt("Invalid town name generator");
294  }
295 
296  if (IsSavegameVersionBefore(SLV_166)) continue;
297 
298  SlObject(&t->cargo_accepted, GetTileMatrixDesc());
299  if (t->cargo_accepted.area.w != 0) {
300  uint arr_len = t->cargo_accepted.area.w / AcceptanceMatrix::GRID * t->cargo_accepted.area.h / AcceptanceMatrix::GRID;
301  t->cargo_accepted.data = MallocT<CargoTypes>(arr_len);
302  SlArray(t->cargo_accepted.data, arr_len, SLE_UINT32);
303 
304  /* Rebuild total cargo acceptance. */
306  }
307  }
308 }
309 
311 static void Ptrs_TOWN()
312 {
313  /* Don't run when savegame version lower than 161. */
314  if (IsSavegameVersionBefore(SLV_161)) return;
315 
316  Town *t;
317  FOR_ALL_TOWNS(t) {
318  SlObject(t, _town_desc);
319  }
320 }
321 
323 extern const ChunkHandler _town_chunk_handlers[] = {
324  { 'HIDS', Save_HIDS, Load_HIDS, nullptr, nullptr, CH_ARRAY },
325  { 'CITY', Save_TOWN, Load_TOWN, Ptrs_TOWN, nullptr, CH_ARRAY | CH_LAST},
326 };
#define SLE_CONDNULL(length, from, to)
Empty space in some savegame versions.
Definition: saveload.h:644
TileIndexDiff GetHouseNorthPart(HouseID &house)
Determines if a given HouseID is part of a multitile house.
Definition: town_cmd.cpp:2614
AcceptanceMatrix cargo_accepted
Bitmap of cargoes accepted by houses for each 4*4 map square of the town.
Definition: town.h:89
static void Ptrs_TOWN()
Fix pointers when loading town data.
Definition: town_sl.cpp:311
TransportedCargoStat< uint16 > received[NUM_TE]
Cargo statistics about received cargotypes.
Definition: town.h:80
static bool IsSavegameVersionBefore(SaveLoadVersion major, byte minor=0)
Checks whether the savegame is below major.
Definition: saveload.h:765
void UpdateTownCargoes(Town *t)
Update cargo acceptance for the complete town.
Definition: town_cmd.cpp:826
Code handling saving and loading of NewGRF mappings.
void UpdateTownCargoTotal(Town *t)
Update the total cargo acceptance of the whole town.
Definition: town_cmd.cpp:778
2.0 0.3.0 2.1 0.3.1, 0.3.2
Definition: saveload.h:35
#define SLE_CONDSTR(base, variable, type, length, from, to)
Storage of a string in some savegame versions.
Definition: saveload.h:568
void NORETURN SlErrorCorrupt(const char *msg)
Error handler for corrupt savegames.
Definition: saveload.cpp:356
Maximal number of cargo types in a game.
Definition: cargo_type.h:66
void RebuildTownCaches()
Rebuild all the cached variables of towns.
Definition: town_sl.cpp:27
static const SaveLoad _town_desc[]
Save and load of towns.
Definition: town_sl.cpp:119
104 14735
Definition: saveload.h:168
void UpdateHousesAndTowns()
Check and update town and house values.
Definition: town_sl.cpp:67
Amount of town effects.
Definition: cargotype.h:35
85 11874
Definition: saveload.h:146
113 15340
Definition: saveload.h:179
Tindex index
Index of this pool item.
Definition: pool_type.hpp:147
const ChunkHandler _town_chunk_handlers[]
Chunk handler for towns.
Cargo behaves water-like.
Definition: cargotype.h:32
165 23304
Definition: saveload.h:242
static StringTab GetStringTab(StringID str)
Extract the StringTab from a StringID.
Definition: strings_func.h:25
uint16 HouseID
OpenTTD ID of house types.
Definition: house_type.h:15
uint32 population
Current population of people.
Definition: town.h:47
uint16 w
The width of the area.
Definition: tilearea_type.h:20
#define SLE_CONDLST(base, variable, type, from, to)
Storage of a list in some savegame versions.
Definition: saveload.h:578
void UpdateTownCargoBitmap()
Updates the bitmap of all cargoes accepted by houses.
Definition: town_cmd.cpp:845
static void SetHouseType(TileIndex t, HouseID house_id)
Set the house type.
Definition: town_map.h:72
byte population
population (Zero on other tiles in multi tile house.)
Definition: house.h:104
void SlArray(void *array, size_t length, VarType conv)
Save/Load an array.
Definition: saveload.cpp:997
static bool IsHouseCompleted(TileIndex t)
Get the completion of this house.
Definition: town_map.h:147
T * data
Pointer to data array.
static bool IsInsideMM(const T x, const size_t min, const size_t max)
Checks if a value is in an interval.
Definition: math_func.hpp:266
Functions/types related to saving and loading games.
#define SLE_CONDVAR(base, variable, type, from, to)
Storage of a variable in some savegame versions.
Definition: saveload.h:536
static bool IsTileType(TileIndex tile, TileType type)
Checks if a tile is a given tiletype.
Definition: tile_map.h:152
static HouseID GetCleanHouseType(TileIndex t)
Get the type of this house, which is an index into the house spec array without doing any NewGRF rela...
Definition: town_map.h:49
Highest possible saveload version.
Definition: saveload.h:307
allow control codes in the strings
Definition: saveload.h:473
First savegame version.
Definition: saveload.h:32
54 9613
Definition: saveload.h:108
84 11822
Definition: saveload.h:144
92 12381 0.6.x
Definition: saveload.h:154
6.0 1721 6.1 1768
Definition: saveload.h:47
164 23290
Definition: saveload.h:240
BuildingFlags building_flags
some flags that describe the house (size, stadium etc...)
Definition: house.h:111
int SlIterateArray()
Iterate through the elements of an array and read the whole thing.
Definition: saveload.cpp:639
Handlers and description of chunk.
Definition: saveload.h:358
TileArea area
Area covered by the matrix.
void Load_NewGRFMapping(OverrideManagerBase &mapping)
Load a GRF ID + local id -> OpenTTD&#39;s id mapping.
Definition: newgrf_sl.cpp:44
#define SLE_END()
End marker of a struct/class save or load.
Definition: saveload.h:653
9.0 1909
Definition: saveload.h:51
3.x lost
Definition: saveload.h:37
static uint MapSize()
Get the size of the map.
Definition: map_func.h:94
56 9667
Definition: saveload.h:111
#define SLE_CONDARR(base, variable, type, length, from, to)
Storage of an array in some savegame versions.
Definition: saveload.h:557
uint32 TileIndex
The index/ID of a Tile.
Definition: tile_type.h:80
66 10211
Definition: saveload.h:123
static HouseID GetHouseType(TileIndex t)
Get the type of this house, which is an index into the house spec array.
Definition: town_map.h:61
void SlObject(void *object, const SaveLoad *sld)
Main SaveLoad function.
Definition: saveload.cpp:1548
TownCache cache
Container for all cacheable data.
Definition: town.h:58
static const HouseID NEW_HOUSE_OFFSET
Offset for new houses.
Definition: house.h:30
Maximum number of companies.
Definition: company_type.h:25
Town data structure.
Definition: town.h:55
End of town effects.
Definition: cargotype.h:34
void SlAutolength(AutolengthProc *proc, void *arg)
Do something of which I have no idea what it is :P.
Definition: saveload.cpp:1576
Cargo behaves food/fizzy-drinks-like.
Definition: cargotype.h:33
static TileIndexDiff TileDiffXY(int x, int y)
Calculates an offset for the given coordinate(-offset).
Definition: map_func.h:181
SaveLoad type struct.
Definition: saveload.h:498
#define SLE_VAR(base, variable, type)
Storage of a variable in every version of a savegame.
Definition: saveload.h:596
#define SLE_STR(base, variable, type, length)
Storage of a string in every savegame version.
Definition: saveload.h:622
TransportedCargoStat< uint32 > supplied[NUM_CARGO]
Cargo statistics about supplied cargo.
Definition: town.h:79
A house by a town.
Definition: tile_type.h:46
byte CargoID
Cargo slots to indicate a cargo type within a game.
Definition: cargo_type.h:22
161 22567
Definition: saveload.h:237
void IncreaseBuildingCount(Town *t, HouseID house_id)
IncreaseBuildingCount() Increase the count of a building when it has been added by a town...
uint32 num_houses
Amount of houses.
Definition: town.h:46
199 PR#6802 Extend cargotypes to 64
Definition: saveload.h:283
void Save_NewGRFMapping(const OverrideManagerBase &mapping)
Save a GRF ID + local id -> OpenTTD&#39;s id mapping.
Definition: newgrf_sl.cpp:32
uint16 h
The height of the area.
Definition: tilearea_type.h:21
168 23637
Definition: saveload.h:245
Last chunk in this array.
Definition: saveload.h:393
4.0 1 4.1 122 0.3.3, 0.3.4 4.2 1222 0.3.5 4.3 1417 4.4 1426
Definition: saveload.h:38
uint16 GetSubstituteID(uint16 entity_id) const
Gives the substitute of the entity, as specified by the grf file.
166 23415
Definition: saveload.h:243
Load/save a reference to a persistent storage.
Definition: saveload.h:382