OpenTTD: src/saveload/afterload.cpp Source File

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afterload.cpp
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1 /* $Id: afterload.cpp 27020 2014-10-15 18:31:37Z rubidium $ */
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 "../void_map.h"
14 #include "../signs_base.h"
15 #include "../depot_base.h"
16 #include "../fios.h"
17 #include "../gamelog_internal.h"
18 #include "../network/network.h"
19 #include "../gfxinit.h"
20 #include "../viewport_func.h"
21 #include "../industry.h"
22 #include "../clear_map.h"
23 #include "../vehicle_func.h"
24 #include "../string_func.h"
25 #include "../date_func.h"
26 #include "../roadveh.h"
27 #include "../train.h"
28 #include "../station_base.h"
29 #include "../waypoint_base.h"
30 #include "../roadstop_base.h"
31 #include "../tunnelbridge_map.h"
32 #include "../pathfinder/yapf/yapf_cache.h"
33 #include "../elrail_func.h"
34 #include "../signs_func.h"
35 #include "../aircraft.h"
36 #include "../object_map.h"
37 #include "../object_base.h"
38 #include "../tree_map.h"
39 #include "../company_func.h"
40 #include "../road_cmd.h"
41 #include "../ai/ai.hpp"
42 #include "../ai/ai_gui.hpp"
43 #include "../town.h"
44 #include "../economy_base.h"
45 #include "../animated_tile_func.h"
46 #include "../subsidy_base.h"
47 #include "../subsidy_func.h"
48 #include "../newgrf.h"
49 #include "../engine_func.h"
50 #include "../rail_gui.h"
51 #include "../core/backup_type.hpp"
52 #include "../smallmap_gui.h"
53 #include "../news_func.h"
54 #include "../order_backup.h"
55 #include "../error.h"
56 #include "../disaster_vehicle.h"
57
58
59 #include "saveload_internal.h"
60
61 #include <signal.h>
62
63 #include "../safeguards.h"
64
65 extern Company *DoStartupNewCompany(bool is_ai, CompanyID company = INVALID_COMPANY);
66
77 void SetWaterClassDependingOnSurroundings(TileIndex t, bool include_invalid_water_class)
78 {
79 /* If the slope is not flat, we always assume 'land' (if allowed). Also for one-corner-raised-shores.
80 * Note: Wrt. autosloping under industry tiles this is the most fool-proof behaviour. */
81 if (!IsTileFlat(t)) {
82 if (include_invalid_water_class) {
83 SetWaterClass(t, WATER_CLASS_INVALID);
84 return;
85 } else {
86 SlErrorCorrupt("Invalid water class for dry tile");
87 }
88 }
89
90 /* Mark tile dirty in all cases */
91 MarkTileDirtyByTile(t);
92
93 if (TileX(t) == 0 || TileY(t) == 0 || TileX(t) == MapMaxX() - 1 || TileY(t) == MapMaxY() - 1) {
94 /* tiles at map borders are always WATER_CLASS_SEA */
95 SetWaterClass(t, WATER_CLASS_SEA);
96 return;
97 }
98
99 bool has_water = false;
100 bool has_canal = false;
101 bool has_river = false;
102
103 for (DiagDirection dir = DIAGDIR_BEGIN; dir < DIAGDIR_END; dir++) {
104 TileIndex neighbour = TileAddByDiagDir(t, dir);
105 switch (GetTileType(neighbour)) {
106 case MP_WATER:
107 /* clear water and shipdepots have already a WaterClass associated */
108 if (IsCoast(neighbour)) {
109 has_water = true;
110 } else if (!IsLock(neighbour)) {
111 switch (GetWaterClass(neighbour)) {
112 case WATER_CLASS_SEA: has_water = true; break;
113 case WATER_CLASS_CANAL: has_canal = true; break;
114 case WATER_CLASS_RIVER: has_river = true; break;
115 default: SlErrorCorrupt("Invalid water class for tile");
116 }
117 }
118 break;
119
120 case MP_RAILWAY:
121 /* Shore or flooded halftile */
122 has_water |= (GetRailGroundType(neighbour) == RAIL_GROUND_WATER);
123 break;
124
125 case MP_TREES:
126 /* trees on shore */
127 has_water |= (GB(_m[neighbour].m2, 4, 2) == TREE_GROUND_SHORE);
128 break;
129
130 default: break;
131 }
132 }
133
134 if (!has_water && !has_canal && !has_river && include_invalid_water_class) {
135 SetWaterClass(t, WATER_CLASS_INVALID);
136 return;
137 }
138
139 if (has_river && !has_canal) {
140 SetWaterClass(t, WATER_CLASS_RIVER);
141 } else if (has_canal || !has_water) {
142 SetWaterClass(t, WATER_CLASS_CANAL);
143 } else {
144 SetWaterClass(t, WATER_CLASS_SEA);
145 }
146 }
147
148 static void ConvertTownOwner()
149 {
150 for (TileIndex tile = 0; tile != MapSize(); tile++) {
151 switch (GetTileType(tile)) {
152 case MP_ROAD:
153 if (GB(_m[tile].m5, 4, 2) == ROAD_TILE_CROSSING && HasBit(_m[tile].m3, 7)) {
154 _m[tile].m3 = OWNER_TOWN;
155 }
156 /* FALL THROUGH */
157
158 case MP_TUNNELBRIDGE:
159 if (_m[tile].m1 & 0x80) SetTileOwner(tile, OWNER_TOWN);
160 break;
161
162 default: break;
163 }
164 }
165 }
166
167 /* since savegame version 4.1, exclusive transport rights are stored at towns */
168 static void UpdateExclusiveRights()
169 {
170 Town *t;
171
172 FOR_ALL_TOWNS(t) {
173 t->exclusivity = INVALID_COMPANY;
174 }
175
176 /* FIXME old exclusive rights status is not being imported (stored in s->blocked_months_obsolete)
177 * could be implemented this way:
178 * 1.) Go through all stations
179 * Build an array town_blocked[ town_id ][ company_id ]
180 * that stores if at least one station in that town is blocked for a company
181 * 2.) Go through that array, if you find a town that is not blocked for
182 * one company, but for all others, then give him exclusivity.
183 */
184 }
185
186 static const byte convert_currency[] = {
187 0, 1, 12, 8, 3,
188 10, 14, 19, 4, 5,
189 9, 11, 13, 6, 17,
190 16, 22, 21, 7, 15,
191 18, 2, 20,
192 };
193
194 /* since savegame version 4.2 the currencies are arranged differently */
195 static void UpdateCurrencies()
196 {
197 _settings_game.locale.currency = convert_currency[_settings_game.locale.currency];
198 }
199
200 /* Up to revision 1413 the invisible tiles at the southern border have not been
201 * MP_VOID, even though they should have. This is fixed by this function
202 */
203 static void UpdateVoidTiles()
204 {
205 uint i;
206
207 for (i = 0; i < MapMaxY(); ++i) MakeVoid(i * MapSizeX() + MapMaxX());
208 for (i = 0; i < MapSizeX(); ++i) MakeVoid(MapSizeX() * MapMaxY() + i);
209 }
210
211 static inline RailType UpdateRailType(RailType rt, RailType min)
212 {
213 return rt >= min ? (RailType)(rt + 1): rt;
214 }
215
219 void UpdateAllVirtCoords()
220 {
221 UpdateAllStationVirtCoords();
222 UpdateAllSignVirtCoords();
223 UpdateAllTownVirtCoords();
224 }
225
235 static void InitializeWindowsAndCaches()
236 {
237 /* Initialize windows */
238 ResetWindowSystem();
239 SetupColoursAndInitialWindow();
240
241 /* Update coordinates of the signs. */
242 UpdateAllVirtCoords();
243 ResetViewportAfterLoadGame();
244
245 Company *c;
246 FOR_ALL_COMPANIES(c) {
247 /* For each company, verify (while loading a scenario) that the inauguration date is the current year and set it
248 * accordingly if it is not the case. No need to set it on companies that are not been used already,
249 * thus the MIN_YEAR (which is really nothing more than Zero, initialized value) test */
250 if (_file_to_saveload.filetype == FT_SCENARIO && c->inaugurated_year != MIN_YEAR) {
251 c->inaugurated_year = _cur_year;
252 }
253 }
254
255 /* Count number of objects per type */
256 Object *o;
257 FOR_ALL_OBJECTS(o) {
258 Object::IncTypeCount(o->type);
259 }
260
261 /* Identify owners of persistent storage arrays */
262 Industry *i;
263 FOR_ALL_INDUSTRIES(i) {
264 if (i->psa != NULL) {
265 i->psa->feature = GSF_INDUSTRIES;
266 i->psa->tile = i->location.tile;
267 }
268 }
269 Station *s;
270 FOR_ALL_STATIONS(s) {
271 if (s->airport.psa != NULL) {
272 s->airport.psa->feature = GSF_AIRPORTS;
273 s->airport.psa->tile = s->airport.tile;
274 }
275 }
276 Town *t;
277 FOR_ALL_TOWNS(t) {
278 for (std::list<PersistentStorage *>::iterator it = t->psa_list.begin(); it != t->psa_list.end(); ++it) {
279 (*it)->feature = GSF_FAKE_TOWNS;
280 (*it)->tile = t->xy;
281 }
282 }
283
284 RecomputePrices();
285
286 GroupStatistics::UpdateAfterLoad();
287
288 Station::RecomputeIndustriesNearForAll();
289 RebuildSubsidisedSourceAndDestinationCache();
290
291 /* Towns have a noise controlled number of airports system
292 * So each airport's noise value must be added to the town->noise_reached value
293 * Reset each town's noise_reached value to '0' before. */
294 UpdateAirportsNoise();
295
296 CheckTrainsLengths();
297 ShowNewGRFError();
298 ShowAIDebugWindowIfAIError();
299
300 /* Rebuild the smallmap list of owners. */
301 BuildOwnerLegend();
302 }
303
304 typedef void (CDECL *SignalHandlerPointer)(int);
305 static SignalHandlerPointer _prev_segfault = NULL;
306 static SignalHandlerPointer _prev_abort = NULL;
307 static SignalHandlerPointer _prev_fpe = NULL;
308
309 static void CDECL HandleSavegameLoadCrash(int signum);
310
315 static void SetSignalHandlers()
316 {
317 _prev_segfault = signal(SIGSEGV, HandleSavegameLoadCrash);
318 _prev_abort = signal(SIGABRT, HandleSavegameLoadCrash);
319 _prev_fpe = signal(SIGFPE, HandleSavegameLoadCrash);
320 }
321
325 static void ResetSignalHandlers()
326 {
327 signal(SIGSEGV, _prev_segfault);
328 signal(SIGABRT, _prev_abort);
329 signal(SIGFPE, _prev_fpe);
330 }
331
337 static const GRFIdentifier *GetOverriddenIdentifier(const GRFConfig *c)
338 {
339 const LoggedAction *la = &_gamelog_action[_gamelog_actions - 1];
340 if (la->at != GLAT_LOAD) return &c->ident;
341
342 const LoggedChange *lcend = &la->change[la->changes];
343 for (const LoggedChange *lc = la->change; lc != lcend; lc++) {
344 if (lc->ct == GLCT_GRFCOMPAT && lc->grfcompat.grfid == c->ident.grfid) return &lc->grfcompat;
345 }
346
347 return &c->ident;
348 }
349
351 static bool _saveload_crash_with_missing_newgrfs = false;
352
358 bool SaveloadCrashWithMissingNewGRFs()
359 {
360 return _saveload_crash_with_missing_newgrfs;
361 }
362
369 static void CDECL HandleSavegameLoadCrash(int signum)
370 {
371 ResetSignalHandlers();
372
373 char buffer[8192];
374 char *p = buffer;
375 p += seprintf(p, lastof(buffer), "Loading your savegame caused OpenTTD to crash.\n");
376
377 for (const GRFConfig *c = _grfconfig; !_saveload_crash_with_missing_newgrfs && c != NULL; c = c->next) {
378 _saveload_crash_with_missing_newgrfs = HasBit(c->flags, GCF_COMPATIBLE) || c->status == GCS_NOT_FOUND;
379 }
380
381 if (_saveload_crash_with_missing_newgrfs) {
382 p += seprintf(p, lastof(buffer),
383 "This is most likely caused by a missing NewGRF or a NewGRF that\n"
384 "has been loaded as replacement for a missing NewGRF. OpenTTD\n"
385 "cannot easily determine whether a replacement NewGRF is of a newer\n"
386 "or older version.\n"
387 "It will load a NewGRF with the same GRF ID as the missing NewGRF.\n"
388 "This means that if the author makes incompatible NewGRFs with the\n"
389 "same GRF ID OpenTTD cannot magically do the right thing. In most\n"
390 "cases OpenTTD will load the savegame and not crash, but this is an\n"
391 "exception.\n"
392 "Please load the savegame with the appropriate NewGRFs installed.\n"
393 "The missing/compatible NewGRFs are:\n");
394
395 for (const GRFConfig *c = _grfconfig; c != NULL; c = c->next) {
396 if (HasBit(c->flags, GCF_COMPATIBLE)) {
397 const GRFIdentifier *replaced = GetOverriddenIdentifier(c);
398 char buf[40];
399 md5sumToString(buf, lastof(buf), replaced->md5sum);
400 p += seprintf(p, lastof(buffer), "NewGRF %08X (checksum %s) not found.\n Loaded NewGRF \"%s\" with same GRF ID instead.\n", BSWAP32(c->ident.grfid), buf, c->filename);
401 }
402 if (c->status == GCS_NOT_FOUND) {
403 char buf[40];
404 md5sumToString(buf, lastof(buf), c->ident.md5sum);
405 p += seprintf(p, lastof(buffer), "NewGRF %08X (%s) not found; checksum %s.\n", BSWAP32(c->ident.grfid), c->filename, buf);
406 }
407 }
408 } else {
409 p += seprintf(p, lastof(buffer),
410 "This is probably caused by a corruption in the savegame.\n"
411 "Please file a bug report and attach this savegame.\n");
412 }
413
414 ShowInfo(buffer);
415
416 SignalHandlerPointer call = NULL;
417 switch (signum) {
418 case SIGSEGV: call = _prev_segfault; break;
419 case SIGABRT: call = _prev_abort; break;
420 case SIGFPE: call = _prev_fpe; break;
421 default: NOT_REACHED();
422 }
423 if (call != NULL) call(signum);
424 }
425
431 static void FixOwnerOfRailTrack(TileIndex t)
432 {
433 assert(!Company::IsValidID(GetTileOwner(t)) && (IsLevelCrossingTile(t) || IsPlainRailTile(t)));
434
435 /* remove leftover rail piece from crossing (from very old savegames) */
436 Train *v = NULL, *w;
437 FOR_ALL_TRAINS(w) {
438 if (w->tile == t) {
439 v = w;
440 break;
441 }
442 }
443
444 if (v != NULL) {
445 /* when there is a train on crossing (it could happen in TTD), set owner of crossing to train owner */
446 SetTileOwner(t, v->owner);
447 return;
448 }
449
450 /* try to find any connected rail */
451 for (DiagDirection dd = DIAGDIR_BEGIN; dd < DIAGDIR_END; dd++) {
452 TileIndex tt = t + TileOffsByDiagDir(dd);
453 if (GetTileTrackStatus(t, TRANSPORT_RAIL, 0, dd) != 0 &&
454 GetTileTrackStatus(tt, TRANSPORT_RAIL, 0, ReverseDiagDir(dd)) != 0 &&
455 Company::IsValidID(GetTileOwner(tt))) {
456 SetTileOwner(t, GetTileOwner(tt));
457 return;
458 }
459 }
460
461 if (IsLevelCrossingTile(t)) {
462 /* else change the crossing to normal road (road vehicles won't care) */
463 MakeRoadNormal(t, GetCrossingRoadBits(t), GetRoadTypes(t), GetTownIndex(t),
464 GetRoadOwner(t, ROADTYPE_ROAD), GetRoadOwner(t, ROADTYPE_TRAM));
465 return;
466 }
467
468 /* if it's not a crossing, make it clean land */
469 MakeClear(t, CLEAR_GRASS, 0);
470 }
471
478 static uint FixVehicleInclination(Vehicle *v, Direction dir)
479 {
480 /* Compute place where this vehicle entered the tile */
481 int entry_x = v->x_pos;
482 int entry_y = v->y_pos;
483 switch (dir) {
484 case DIR_NE: entry_x |= TILE_UNIT_MASK; break;
485 case DIR_NW: entry_y |= TILE_UNIT_MASK; break;
486 case DIR_SW: entry_x &= ~TILE_UNIT_MASK; break;
487 case DIR_SE: entry_y &= ~TILE_UNIT_MASK; break;
488 case INVALID_DIR: break;
489 default: NOT_REACHED();
490 }
491 byte entry_z = GetSlopePixelZ(entry_x, entry_y);
492
493 /* Compute middle of the tile. */
494 int middle_x = (v->x_pos & ~TILE_UNIT_MASK) + TILE_SIZE / 2;
495 int middle_y = (v->y_pos & ~TILE_UNIT_MASK) + TILE_SIZE / 2;
496 byte middle_z = GetSlopePixelZ(middle_x, middle_y);
497
498 /* middle_z == entry_z, no height change. */
499 if (middle_z == entry_z) return 0;
500
501 /* middle_z < entry_z, we are going downwards. */
502 if (middle_z < entry_z) return 1U << GVF_GOINGDOWN_BIT;
503
504 /* middle_z > entry_z, we are going upwards. */
505 return 1U << GVF_GOINGUP_BIT;
506 }
507
514 static inline bool MayHaveBridgeAbove(TileIndex t)
515 {
516 return IsTileType(t, MP_CLEAR) || IsTileType(t, MP_RAILWAY) || IsTileType(t, MP_ROAD) ||
517 IsTileType(t, MP_WATER) || IsTileType(t, MP_TUNNELBRIDGE) || IsTileType(t, MP_OBJECT);
518 }
519
525 bool AfterLoadGame()
526 {
527 SetSignalHandlers();
528
529 TileIndex map_size = MapSize();
530
531 extern TileIndex _cur_tileloop_tile; // From landscape.cpp.
532 /* The LFSR used in RunTileLoop iteration cannot have a zeroed state, make it non-zeroed. */
533 if (_cur_tileloop_tile == 0) _cur_tileloop_tile = 1;
534
535 if (IsSavegameVersionBefore(98)) GamelogOldver();
536
537 GamelogTestRevision();
538 GamelogTestMode();
539
540 if (IsSavegameVersionBefore(98)) GamelogGRFAddList(_grfconfig);
541
542 if (IsSavegameVersionBefore(119)) {
543 _pause_mode = (_pause_mode == 2) ? PM_PAUSED_NORMAL : PM_UNPAUSED;
544 } else if (_network_dedicated && (_pause_mode & PM_PAUSED_ERROR) != 0) {
545 DEBUG(net, 0, "The loading savegame was paused due to an error state.");
546 DEBUG(net, 0, " The savegame cannot be used for multiplayer!");
547 /* Restore the signals */
548 ResetSignalHandlers();
549 return false;
550 } else if (!_networking || _network_server) {
551 /* If we are in single player, i.e. not networking, and loading the
552 * savegame or we are loading the savegame as network server we do
553 * not want to be bothered by being paused because of the automatic
554 * reason of a network server, e.g. joining clients or too few
555 * active clients. Note that resetting these values for a network
556 * client are very bad because then the client is going to execute
557 * the game loop when the server is not, i.e. it desyncs. */
558 _pause_mode &= ~PMB_PAUSED_NETWORK;
559 }
560
561 /* In very old versions, size of train stations was stored differently.
562 * They had swapped width and height if station was built along the Y axis.
563 * TTO and TTD used 3 bits for width/height, while OpenTTD used 4.
564 * Because the data stored by TTDPatch are unusable for rail stations > 7x7,
565 * recompute the width and height. Doing this unconditionally for all old
566 * savegames simplifies the code. */
567 if (IsSavegameVersionBefore(2)) {
568 Station *st;
569 FOR_ALL_STATIONS(st) {
570 st->train_station.w = st->train_station.h = 0;
571 }
572 for (TileIndex t = 0; t < map_size; t++) {
573 if (!IsTileType(t, MP_STATION)) continue;
574 if (_m[t].m5 > 7) continue; // is it a rail station tile?
575 st = Station::Get(_m[t].m2);
576 assert(st->train_station.tile != 0);
577 int dx = TileX(t) - TileX(st->train_station.tile);
578 int dy = TileY(t) - TileY(st->train_station.tile);
579 assert(dx >= 0 && dy >= 0);
580 st->train_station.w = max<uint>(st->train_station.w, dx + 1);
581 st->train_station.h = max<uint>(st->train_station.h, dy + 1);
582 }
583 }
584
585 if (IsSavegameVersionBefore(194)) {
586 _settings_game.construction.max_heightlevel = 15;
587
588 /* In old savegame versions, the heightlevel was coded in bits 0..3 of the type field */
589 for (TileIndex t = 0; t < map_size; t++) {
590 _m[t].height = GB(_m[t].type, 0, 4);
591 SB(_m[t].type, 0, 2, GB(_me[t].m6, 0, 2));
592 SB(_me[t].m6, 0, 2, 0);
593 if (MayHaveBridgeAbove(t)) {
594 SB(_m[t].type, 2, 2, GB(_me[t].m6, 6, 2));
595 SB(_me[t].m6, 6, 2, 0);
596 } else {
597 SB(_m[t].type, 2, 2, 0);
598 }
599 }
600 }
601
602 /* in version 2.1 of the savegame, town owner was unified. */
603 if (IsSavegameVersionBefore(2, 1)) ConvertTownOwner();
604
605 /* from version 4.1 of the savegame, exclusive rights are stored at towns */
606 if (IsSavegameVersionBefore(4, 1)) UpdateExclusiveRights();
607
608 /* from version 4.2 of the savegame, currencies are in a different order */
609 if (IsSavegameVersionBefore(4, 2)) UpdateCurrencies();
610
611 /* In old version there seems to be a problem that water is owned by
612 * OWNER_NONE, not OWNER_WATER.. I can't replicate it for the current
613 * (4.3) version, so I just check when versions are older, and then
614 * walk through the whole map.. */
615 if (IsSavegameVersionBefore(4, 3)) {
616 for (TileIndex t = 0; t < map_size; t++) {
617 if (IsTileType(t, MP_WATER) && GetTileOwner(t) >= MAX_COMPANIES) {
618 SetTileOwner(t, OWNER_WATER);
619 }
620 }
621 }
622
623 if (IsSavegameVersionBefore(84)) {
624 Company *c;
625 FOR_ALL_COMPANIES(c) {
626 c->name = CopyFromOldName(c->name_1);
627 if (c->name != NULL) c->name_1 = STR_SV_UNNAMED;
628 c->president_name = CopyFromOldName(c->president_name_1);
629 if (c->president_name != NULL) c->president_name_1 = SPECSTR_PRESIDENT_NAME;
630 }
631
632 Station *st;
633 FOR_ALL_STATIONS(st) {
634 st->name = CopyFromOldName(st->string_id);
635 /* generating new name would be too much work for little effect, use the station name fallback */
636 if (st->name != NULL) st->string_id = STR_SV_STNAME_FALLBACK;
637 }
638
639 Town *t;
640 FOR_ALL_TOWNS(t) {
641 t->name = CopyFromOldName(t->townnametype);
642 if (t->name != NULL) t->townnametype = SPECSTR_TOWNNAME_START + _settings_game.game_creation.town_name;
643 }
644 }
645
646 /* From this point the old names array is cleared. */
647 ResetOldNames();
648
649 if (IsSavegameVersionBefore(106)) {
650 /* no station is determined by 'tile == INVALID_TILE' now (instead of '0') */
651 Station *st;
652 FOR_ALL_STATIONS(st) {
653 if (st->airport.tile == 0) st->airport.tile = INVALID_TILE;
654 if (st->dock_tile == 0) st->dock_tile = INVALID_TILE;
655 if (st->train_station.tile == 0) st->train_station.tile = INVALID_TILE;
656 }
657
658 /* the same applies to Company::location_of_HQ */
659 Company *c;
660 FOR_ALL_COMPANIES(c) {
661 if (c->location_of_HQ == 0 || (IsSavegameVersionBefore(4) && c->location_of_HQ == 0xFFFF)) {
662 c->location_of_HQ = INVALID_TILE;
663 }
664 }
665 }
666
667 /* convert road side to my format. */
668 if (_settings_game.vehicle.road_side) _settings_game.vehicle.road_side = 1;
669
670 /* Check if all NewGRFs are present, we are very strict in MP mode */
671 GRFListCompatibility gcf_res = IsGoodGRFConfigList(_grfconfig);
672 for (GRFConfig *c = _grfconfig; c != NULL; c = c->next) {
673 if (c->status == GCS_NOT_FOUND) {
674 GamelogGRFRemove(c->ident.grfid);
675 } else if (HasBit(c->flags, GCF_COMPATIBLE)) {
676 GamelogGRFCompatible(&c->ident);
677 }
678 }
679
680 if (_networking && gcf_res != GLC_ALL_GOOD) {
681 SetSaveLoadError(STR_NETWORK_ERROR_CLIENT_NEWGRF_MISMATCH);
682 /* Restore the signals */
683 ResetSignalHandlers();
684 return false;
685 }
686
687 switch (gcf_res) {
688 case GLC_COMPATIBLE: ShowErrorMessage(STR_NEWGRF_COMPATIBLE_LOAD_WARNING, INVALID_STRING_ID, WL_CRITICAL); break;
689 case GLC_NOT_FOUND: ShowErrorMessage(STR_NEWGRF_DISABLED_WARNING, INVALID_STRING_ID, WL_CRITICAL); _pause_mode = PM_PAUSED_ERROR; break;
690 default: break;
691 }
692
693 /* The value of _date_fract got divided, so make sure that old games are converted correctly. */
694 if (IsSavegameVersionBefore(11, 1) || (IsSavegameVersionBefore(147) && _date_fract > DAY_TICKS)) _date_fract /= 885;
695
696 /* Update current year
697 * must be done before loading sprites as some newgrfs check it */
698 SetDate(_date, _date_fract);
699
700 /*
701 * Force the old behaviour for compatibility reasons with old savegames. As new
702 * settings can only be loaded from new savegames loading old savegames with new
703 * versions of OpenTTD will normally initialize settings newer than the savegame
704 * version with "new game" defaults which the player can define to their liking.
705 * For some settings we override that to keep the behaviour the same as when the
706 * game was saved.
707 *
708 * Note that there is no non-stop in here. This is because the setting could have
709 * either value in TTDPatch. To convert it properly the user has to make sure the
710 * right value has been chosen in the settings. Otherwise we will be converting
711 * it incorrectly in half of the times without a means to correct that.
712 */
713 if (IsSavegameVersionBefore(4, 2)) _settings_game.station.modified_catchment = false;
714 if (IsSavegameVersionBefore(6, 1)) _settings_game.pf.forbid_90_deg = false;
715 if (IsSavegameVersionBefore(21)) _settings_game.vehicle.train_acceleration_model = 0;
716 if (IsSavegameVersionBefore(90)) _settings_game.vehicle.plane_speed = 4;
717 if (IsSavegameVersionBefore(95)) _settings_game.vehicle.dynamic_engines = 0;
718 if (IsSavegameVersionBefore(96)) _settings_game.economy.station_noise_level = false;
719 if (IsSavegameVersionBefore(133)) {
720 _settings_game.vehicle.roadveh_acceleration_model = 0;
721 _settings_game.vehicle.train_slope_steepness = 3;
722 }
723 if (IsSavegameVersionBefore(134)) _settings_game.economy.feeder_payment_share = 75;
724 if (IsSavegameVersionBefore(138)) _settings_game.vehicle.plane_crashes = 2;
725 if (IsSavegameVersionBefore(139)) _settings_game.vehicle.roadveh_slope_steepness = 7;
726 if (IsSavegameVersionBefore(143)) _settings_game.economy.allow_town_level_crossings = true;
727 if (IsSavegameVersionBefore(159)) {
728 _settings_game.vehicle.max_train_length = 50;
729 _settings_game.construction.max_bridge_length = 64;
730 _settings_game.construction.max_tunnel_length = 64;
731 }
732 if (IsSavegameVersionBefore(166)) _settings_game.economy.infrastructure_maintenance = false;
733 if (IsSavegameVersionBefore(183)) {
734 _settings_game.linkgraph.distribution_pax = DT_MANUAL;
735 _settings_game.linkgraph.distribution_mail = DT_MANUAL;
736 _settings_game.linkgraph.distribution_armoured = DT_MANUAL;
737 _settings_game.linkgraph.distribution_default = DT_MANUAL;
738 }
739
740 /* Load the sprites */
741 GfxLoadSprites();
742 LoadStringWidthTable();
743
744 /* Copy temporary data to Engine pool */
745 CopyTempEngineData();
746
747 /* Connect front and rear engines of multiheaded trains and converts
748 * subtype to the new format */
749 if (IsSavegameVersionBefore(17, 1)) ConvertOldMultiheadToNew();
750
751 /* Connect front and rear engines of multiheaded trains */
752 ConnectMultiheadedTrains();
753
754 /* Fix the CargoPackets *and* fix the caches of CargoLists.
755 * If this isn't done before Stations and especially Vehicles are
756 * running their AfterLoad we might get in trouble. In the case of
757 * vehicles we could give the wrong (cached) count of items in a
758 * vehicle which causes different results when getting their caches
759 * filled; and that could eventually lead to desyncs. */
760 CargoPacket::AfterLoad();
761
762 /* Oilrig was moved from id 15 to 9. We have to do this conversion
763 * here as AfterLoadVehicles can check it indirectly via the newgrf
764 * code. */
765 if (IsSavegameVersionBefore(139)) {
766 Station *st;
767 FOR_ALL_STATIONS(st) {
768 if (st->airport.tile != INVALID_TILE && st->airport.type == 15) {
769 st->airport.type = AT_OILRIG;
770 }
771 }
772 }
773
774 /* Update all vehicles */
775 AfterLoadVehicles(true);
776
777 /* Make sure there is an AI attached to an AI company */
778 {
779 Company *c;
780 FOR_ALL_COMPANIES(c) {
781 if (c->is_ai && c->ai_instance == NULL) AI::StartNew(c->index);
782 }
783 }
784
785 /* make sure there is a town in the game */
786 if (_game_mode == GM_NORMAL && Town::GetNumItems() == 0) {
787 SetSaveLoadError(STR_ERROR_NO_TOWN_IN_SCENARIO);
788 /* Restore the signals */
789 ResetSignalHandlers();
790 return false;
791 }
792
793 /* The void tiles on the southern border used to belong to a wrong class (pre 4.3).
794 * This problem appears in savegame version 21 too, see r3455. But after loading the
795 * savegame and saving again, the buggy map array could be converted to new savegame
796 * version. It didn't show up before r12070. */
797 if (IsSavegameVersionBefore(87)) UpdateVoidTiles();
798
799 /* If Load Scenario / New (Scenario) Game is used,
800 * a company does not exist yet. So create one here.
801 * 1 exception: network-games. Those can have 0 companies
802 * But this exception is not true for non-dedicated network servers! */
803 if (!Company::IsValidID(COMPANY_FIRST) && (!_networking || (_networking && _network_server && !_network_dedicated))) {
804 DoStartupNewCompany(false);
805 Company *c = Company::Get(COMPANY_FIRST);
806 c->settings = _settings_client.company;
807 }
808
809 /* Fix the cache for cargo payments. */
810 CargoPayment *cp;
811 FOR_ALL_CARGO_PAYMENTS(cp) {
812 cp->front->cargo_payment = cp;
813 cp->current_station = cp->front->last_station_visited;
814 }
815
816 if (IsSavegameVersionBefore(72)) {
817 /* Locks in very old savegames had OWNER_WATER as owner */
818 for (TileIndex t = 0; t < MapSize(); t++) {
819 switch (GetTileType(t)) {
820 default: break;
821
822 case MP_WATER:
823 if (GetWaterTileType(t) == WATER_TILE_LOCK && GetTileOwner(t) == OWNER_WATER) SetTileOwner(t, OWNER_NONE);
824 break;
825
826 case MP_STATION: {
827 if (HasBit(_me[t].m6, 3)) SetBit(_me[t].m6, 2);
828 StationGfx gfx = GetStationGfx(t);
829 StationType st;
830 if ( IsInsideMM(gfx, 0, 8)) { // Rail station
831 st = STATION_RAIL;
832 SetStationGfx(t, gfx - 0);
833 } else if (IsInsideMM(gfx, 8, 67)) { // Airport
834 st = STATION_AIRPORT;
835 SetStationGfx(t, gfx - 8);
836 } else if (IsInsideMM(gfx, 67, 71)) { // Truck
837 st = STATION_TRUCK;
838 SetStationGfx(t, gfx - 67);
839 } else if (IsInsideMM(gfx, 71, 75)) { // Bus
840 st = STATION_BUS;
841 SetStationGfx(t, gfx - 71);
842 } else if (gfx == 75) { // Oil rig
843 st = STATION_OILRIG;
844 SetStationGfx(t, gfx - 75);
845 } else if (IsInsideMM(gfx, 76, 82)) { // Dock
846 st = STATION_DOCK;
847 SetStationGfx(t, gfx - 76);
848 } else if (gfx == 82) { // Buoy
849 st = STATION_BUOY;
850 SetStationGfx(t, gfx - 82);
851 } else if (IsInsideMM(gfx, 83, 168)) { // Extended airport
852 st = STATION_AIRPORT;
853 SetStationGfx(t, gfx - 83 + 67 - 8);
854 } else if (IsInsideMM(gfx, 168, 170)) { // Drive through truck
855 st = STATION_TRUCK;
856 SetStationGfx(t, gfx - 168 + GFX_TRUCK_BUS_DRIVETHROUGH_OFFSET);
857 } else if (IsInsideMM(gfx, 170, 172)) { // Drive through bus
858 st = STATION_BUS;
859 SetStationGfx(t, gfx - 170 + GFX_TRUCK_BUS_DRIVETHROUGH_OFFSET);
860 } else {
861 /* Restore the signals */
862 ResetSignalHandlers();
863 return false;
864 }
865 SB(_me[t].m6, 3, 3, st);
866 break;
867 }
868 }
869 }
870 }
871
872 for (TileIndex t = 0; t < map_size; t++) {
873 switch (GetTileType(t)) {
874 case MP_STATION: {
875 BaseStation *bst = BaseStation::GetByTile(t);
876
877 /* Set up station spread */
878 bst->rect.BeforeAddTile(t, StationRect::ADD_FORCE);
879
880 /* Waypoints don't have road stops/oil rigs in the old format */
881 if (!Station::IsExpected(bst)) break;
882 Station *st = Station::From(bst);
883
884 switch (GetStationType(t)) {
885 case STATION_TRUCK:
886 case STATION_BUS:
887 if (IsSavegameVersionBefore(6)) {
888 /* Before version 5 you could not have more than 250 stations.
889 * Version 6 adds large maps, so you could only place 253*253
890 * road stops on a map (no freeform edges) = 64009. So, yes
891 * someone could in theory create such a full map to trigger
892 * this assertion, it's safe to assume that's only something
893 * theoretical and does not happen in normal games. */
894 assert(RoadStop::CanAllocateItem());
895
896 /* From this version on there can be multiple road stops of the
897 * same type per station. Convert the existing stops to the new
898 * internal data structure. */
899 RoadStop *rs = new RoadStop(t);
900
901 RoadStop **head =
902 IsTruckStop(t) ? &st->truck_stops : &st->bus_stops;
903 *head = rs;
904 }
905 break;
906
907 case STATION_OILRIG: {
908 /* Very old savegames sometimes have phantom oil rigs, i.e.
909 * an oil rig which got shut down, but not completely removed from
910 * the map
911 */
912 TileIndex t1 = TILE_ADDXY(t, 0, 1);
913 if (IsTileType(t1, MP_INDUSTRY) &&
914 GetIndustryGfx(t1) == GFX_OILRIG_1) {
915 /* The internal encoding of oil rigs was changed twice.
916 * It was 3 (till 2.2) and later 5 (till 5.1).
917 * Setting it unconditionally does not hurt.
918 */
919 Station::GetByTile(t)->airport.type = AT_OILRIG;
920 } else {
921 DeleteOilRig(t);
922 }
923 break;
924 }
925
926 default: break;
927 }
928 break;
929 }
930
931 default: break;
932 }
933 }
934
935 /* In version 2.2 of the savegame, we have new airports, so status of all aircraft is reset.
936 * This has to be called after the oilrig airport_type update above ^^^ ! */
937 if (IsSavegameVersionBefore(2, 2)) UpdateOldAircraft();
938
939 /* In version 6.1 we put the town index in the map-array. To do this, we need
940 * to use m2 (16bit big), so we need to clean m2, and that is where this is
941 * all about ;) */
942 if (IsSavegameVersionBefore(6, 1)) {
943 for (TileIndex t = 0; t < map_size; t++) {
944 switch (GetTileType(t)) {
945 case MP_HOUSE:
946 _m[t].m4 = _m[t].m2;
947 SetTownIndex(t, CalcClosestTownFromTile(t)->index);
948 break;
949
950 case MP_ROAD:
951 _m[t].m4 |= (_m[t].m2 << 4);
952 if ((GB(_m[t].m5, 4, 2) == ROAD_TILE_CROSSING ? (Owner)_m[t].m3 : GetTileOwner(t)) == OWNER_TOWN) {
953 SetTownIndex(t, CalcClosestTownFromTile(t)->index);
954 } else {
955 SetTownIndex(t, 0);
956 }
957 break;
958
959 default: break;
960 }
961 }
962 }
963
964 /* Force the freeform edges to false for old savegames. */
965 if (IsSavegameVersionBefore(111)) {
966 _settings_game.construction.freeform_edges = false;
967 }
968
969 /* From version 9.0, we update the max passengers of a town (was sometimes negative
970 * before that. */
971 if (IsSavegameVersionBefore(9)) {
972 Town *t;
973 FOR_ALL_TOWNS(t) UpdateTownMaxPass(t);
974 }
975
976 /* From version 16.0, we included autorenew on engines, which are now saved, but
977 * of course, we do need to initialize them for older savegames. */
978 if (IsSavegameVersionBefore(16)) {
979 Company *c;
980 FOR_ALL_COMPANIES(c) {
981 c->engine_renew_list = NULL;
982 c->settings.engine_renew = false;
983 c->settings.engine_renew_months = 6;
984 c->settings.engine_renew_money = 100000;
985 }
986
987 /* When loading a game, _local_company is not yet set to the correct value.
988 * However, in a dedicated server we are a spectator, so nothing needs to
989 * happen. In case we are not a dedicated server, the local company always
990 * becomes company 0, unless we are in the scenario editor where all the
991 * companies are 'invalid'.
992 */
993 c = Company::GetIfValid(COMPANY_FIRST);
994 if (!_network_dedicated && c != NULL) {
995 c->settings = _settings_client.company;
996 }
997 }
998
999 if (IsSavegameVersionBefore(48)) {
1000 for (TileIndex t = 0; t < map_size; t++) {
1001 switch (GetTileType(t)) {
1002 case MP_RAILWAY:
1003 if (IsPlainRail(t)) {
1004 /* Swap ground type and signal type for plain rail tiles, so the
1005 * ground type uses the same bits as for depots and waypoints. */
1006 uint tmp = GB(_m[t].m4, 0, 4);
1007 SB(_m[t].m4, 0, 4, GB(_m[t].m2, 0, 4));
1008 SB(_m[t].m2, 0, 4, tmp);
1009 } else if (HasBit(_m[t].m5, 2)) {
1010 /* Split waypoint and depot rail type and remove the subtype. */
1011 ClrBit(_m[t].m5, 2);
1012 ClrBit(_m[t].m5, 6);
1013 }
1014 break;
1015
1016 case MP_ROAD:
1017 /* Swap m3 and m4, so the track type for rail crossings is the
1018 * same as for normal rail. */
1019 Swap(_m[t].m3, _m[t].m4);
1020 break;
1021
1022 default: break;
1023 }
1024 }
1025 }
1026
1027 if (IsSavegameVersionBefore(61)) {
1028 /* Added the RoadType */
1029 bool old_bridge = IsSavegameVersionBefore(42);
1030 for (TileIndex t = 0; t < map_size; t++) {
1031 switch (GetTileType(t)) {
1032 case MP_ROAD:
1033 SB(_m[t].m5, 6, 2, GB(_m[t].m5, 4, 2));
1034 switch (GetRoadTileType(t)) {
1035 default: SlErrorCorrupt("Invalid road tile type");
1036 case ROAD_TILE_NORMAL:
1037 SB(_m[t].m4, 0, 4, GB(_m[t].m5, 0, 4));
1038 SB(_m[t].m4, 4, 4, 0);
1039 SB(_me[t].m6, 2, 4, 0);
1040 break;
1041 case ROAD_TILE_CROSSING:
1042 SB(_m[t].m4, 5, 2, GB(_m[t].m5, 2, 2));
1043 break;
1044 case ROAD_TILE_DEPOT: break;
1045 }
1046 SetRoadTypes(t, ROADTYPES_ROAD);
1047 break;
1048
1049 case MP_STATION:
1050 if (IsRoadStop(t)) SetRoadTypes(t, ROADTYPES_ROAD);
1051 break;
1052
1053 case MP_TUNNELBRIDGE:
1054 /* Middle part of "old" bridges */
1055 if (old_bridge && IsBridge(t) && HasBit(_m[t].m5, 6)) break;
1056 if (((old_bridge && IsBridge(t)) ? (TransportType)GB(_m[t].m5, 1, 2) : GetTunnelBridgeTransportType(t)) == TRANSPORT_ROAD) {
1057 SetRoadTypes(t, ROADTYPES_ROAD);
1058 }
1059 break;
1060
1061 default: break;
1062 }
1063 }
1064 }
1065
1066 if (IsSavegameVersionBefore(114)) {
1067 bool fix_roadtypes = !IsSavegameVersionBefore(61);
1068 bool old_bridge = IsSavegameVersionBefore(42);
1069
1070 for (TileIndex t = 0; t < map_size; t++) {
1071 switch (GetTileType(t)) {
1072 case MP_ROAD:
1073 if (fix_roadtypes) SetRoadTypes(t, (RoadTypes)GB(_me[t].m7, 5, 3));
1074 SB(_me[t].m7, 5, 1, GB(_m[t].m3, 7, 1)); // snow/desert
1075 switch (GetRoadTileType(t)) {
1076 default: SlErrorCorrupt("Invalid road tile type");
1077 case ROAD_TILE_NORMAL:
1078 SB(_me[t].m7, 0, 4, GB(_m[t].m3, 0, 4)); // road works
1079 SB(_me[t].m6, 3, 3, GB(_m[t].m3, 4, 3)); // ground
1080 SB(_m[t].m3, 0, 4, GB(_m[t].m4, 4, 4)); // tram bits
1081 SB(_m[t].m3, 4, 4, GB(_m[t].m5, 0, 4)); // tram owner
1082 SB(_m[t].m5, 0, 4, GB(_m[t].m4, 0, 4)); // road bits
1083 break;
1084
1085 case ROAD_TILE_CROSSING:
1086 SB(_me[t].m7, 0, 5, GB(_m[t].m4, 0, 5)); // road owner
1087 SB(_me[t].m6, 3, 3, GB(_m[t].m3, 4, 3)); // ground
1088 SB(_m[t].m3, 4, 4, GB(_m[t].m5, 0, 4)); // tram owner
1089 SB(_m[t].m5, 0, 1, GB(_m[t].m4, 6, 1)); // road axis
1090 SB(_m[t].m5, 5, 1, GB(_m[t].m4, 5, 1)); // crossing state
1091 break;
1092
1093 case ROAD_TILE_DEPOT:
1094 break;
1095 }
1096 if (!IsRoadDepot(t) && !HasTownOwnedRoad(t)) {
1097 const Town *town = CalcClosestTownFromTile(t);
1098 if (town != NULL) SetTownIndex(t, town->index);
1099 }
1100 _m[t].m4 = 0;
1101 break;
1102
1103 case MP_STATION:
1104 if (!IsRoadStop(t)) break;
1105
1106 if (fix_roadtypes) SetRoadTypes(t, (RoadTypes)GB(_m[t].m3, 0, 3));
1107 SB(_me[t].m7, 0, 5, HasBit(_me[t].m6, 2) ? OWNER_TOWN : GetTileOwner(t));
1108 SB(_m[t].m3, 4, 4, _m[t].m1);
1109 _m[t].m4 = 0;
1110 break;
1111
1112 case MP_TUNNELBRIDGE:
1113 if (old_bridge && IsBridge(t) && HasBit(_m[t].m5, 6)) break;
1114 if (((old_bridge && IsBridge(t)) ? (TransportType)GB(_m[t].m5, 1, 2) : GetTunnelBridgeTransportType(t)) == TRANSPORT_ROAD) {
1115 if (fix_roadtypes) SetRoadTypes(t, (RoadTypes)GB(_m[t].m3, 0, 3));
1116
1117 Owner o = GetTileOwner(t);
1118 SB(_me[t].m7, 0, 5, o); // road owner
1119 SB(_m[t].m3, 4, 4, o == OWNER_NONE ? OWNER_TOWN : o); // tram owner
1120 }
1121 SB(_me[t].m6, 2, 4, GB(_m[t].m2, 4, 4)); // bridge type
1122 SB(_me[t].m7, 5, 1, GB(_m[t].m4, 7, 1)); // snow/desert
1123
1124 _m[t].m2 = 0;
1125 _m[t].m4 = 0;
1126 break;
1127
1128 default: break;
1129 }
1130 }
1131 }
1132
1133 if (IsSavegameVersionBefore(42)) {
1134 Vehicle *v;
1135
1136 for (TileIndex t = 0; t < map_size; t++) {
1137 if (MayHaveBridgeAbove(t)) ClearBridgeMiddle(t);
1138 if (IsBridgeTile(t)) {
1139 if (HasBit(_m[t].m5, 6)) { // middle part
1140 Axis axis = (Axis)GB(_m[t].m5, 0, 1);
1141
1142 if (HasBit(_m[t].m5, 5)) { // transport route under bridge?
1143 if (GB(_m[t].m5, 3, 2) == TRANSPORT_RAIL) {
1144 MakeRailNormal(
1145 t,
1146 GetTileOwner(t),
1147 axis == AXIS_X ? TRACK_BIT_Y : TRACK_BIT_X,
1148 GetRailType(t)
1149 );
1150 } else {
1151 TownID town = IsTileOwner(t, OWNER_TOWN) ? ClosestTownFromTile(t, UINT_MAX)->index : 0;
1152
1153 MakeRoadNormal(
1154 t,
1155 axis == AXIS_X ? ROAD_Y : ROAD_X,
1156 ROADTYPES_ROAD,
1157 town,
1158 GetTileOwner(t), OWNER_NONE
1159 );
1160 }
1161 } else {
1162 if (GB(_m[t].m5, 3, 2) == 0) {
1163 MakeClear(t, CLEAR_GRASS, 3);
1164 } else {
1165 if (!IsTileFlat(t)) {
1166 MakeShore(t);
1167 } else {
1168 if (GetTileOwner(t) == OWNER_WATER) {
1169 MakeSea(t);
1170 } else {
1171 MakeCanal(t, GetTileOwner(t), Random());
1172 }
1173 }
1174 }
1175 }
1176 SetBridgeMiddle(t, axis);
1177 } else { // ramp
1178 Axis axis = (Axis)GB(_m[t].m5, 0, 1);
1179 uint north_south = GB(_m[t].m5, 5, 1);
1180 DiagDirection dir = ReverseDiagDir(XYNSToDiagDir(axis, north_south));
1181 TransportType type = (TransportType)GB(_m[t].m5, 1, 2);
1182
1183 _m[t].m5 = 1 << 7 | type << 2 | dir;
1184 }
1185 }
1186 }
1187
1188 FOR_ALL_VEHICLES(v) {
1189 if (!v->IsGroundVehicle()) continue;
1190 if (IsBridgeTile(v->tile)) {
1191 DiagDirection dir = GetTunnelBridgeDirection(v->tile);
1192
1193 if (dir != DirToDiagDir(v->direction)) continue;
1194 switch (dir) {
1195 default: SlErrorCorrupt("Invalid vehicle direction");
1196 case DIAGDIR_NE: if ((v->x_pos & 0xF) != 0) continue; break;
1197 case DIAGDIR_SE: if ((v->y_pos & 0xF) != TILE_SIZE - 1) continue; break;
1198 case DIAGDIR_SW: if ((v->x_pos & 0xF) != TILE_SIZE - 1) continue; break;
1199 case DIAGDIR_NW: if ((v->y_pos & 0xF) != 0) continue; break;
1200 }
1201 } else if (v->z_pos > GetSlopePixelZ(v->x_pos, v->y_pos)) {
1202 v->tile = GetNorthernBridgeEnd(v->tile);
1203 } else {
1204 continue;
1205 }
1206 if (v->type == VEH_TRAIN) {
1207 Train::From(v)->track = TRACK_BIT_WORMHOLE;
1208 } else {
1209 RoadVehicle::From(v)->state = RVSB_WORMHOLE;
1210 }
1211 }
1212 }
1213
1214 /* Elrails got added in rev 24 */
1215 if (IsSavegameVersionBefore(24)) {
1216 RailType min_rail = RAILTYPE_ELECTRIC;
1217
1218 Train *v;
1219 FOR_ALL_TRAINS(v) {
1220 RailType rt = RailVehInfo(v->engine_type)->railtype;
1221
1222 v->railtype = rt;
1223 if (rt == RAILTYPE_ELECTRIC) min_rail = RAILTYPE_RAIL;
1224 }
1225
1226 /* .. so we convert the entire map from normal to elrail (so maintain "fairness") */
1227 for (TileIndex t = 0; t < map_size; t++) {
1228 switch (GetTileType(t)) {
1229 case MP_RAILWAY:
1230 SetRailType(t, UpdateRailType(GetRailType(t), min_rail));
1231 break;
1232
1233 case MP_ROAD:
1234 if (IsLevelCrossing(t)) {
1235 SetRailType(t, UpdateRailType(GetRailType(t), min_rail));
1236 }
1237 break;
1238
1239 case MP_STATION:
1240 if (HasStationRail(t)) {
1241 SetRailType(t, UpdateRailType(GetRailType(t), min_rail));
1242 }
1243 break;
1244
1245 case MP_TUNNELBRIDGE:
1246 if (GetTunnelBridgeTransportType(t) == TRANSPORT_RAIL) {
1247 SetRailType(t, UpdateRailType(GetRailType(t), min_rail));
1248 }
1249 break;
1250
1251 default:
1252 break;
1253 }
1254 }
1255
1256 FOR_ALL_TRAINS(v) {
1257 if (v->IsFrontEngine() || v->IsFreeWagon()) v->ConsistChanged(CCF_TRACK);
1258 }
1259
1260 }
1261
1262 /* In version 16.1 of the savegame a company can decide if trains, which get
1263 * replaced, shall keep their old length. In all prior versions, just default
1264 * to false */
1265 if (IsSavegameVersionBefore(16, 1)) {
1266 Company *c;
1267 FOR_ALL_COMPANIES(c) c->settings.renew_keep_length = false;
1268 }
1269
1270 if (IsSavegameVersionBefore(123)) {
1271 /* Waypoints became subclasses of stations ... */
1272 MoveWaypointsToBaseStations();
1273 /* ... and buoys were moved to waypoints. */
1274 MoveBuoysToWaypoints();
1275 }
1276
1277 /* From version 15, we moved a semaphore bit from bit 2 to bit 3 in m4, making
1278 * room for PBS. Now in version 21 move it back :P. */
1279 if (IsSavegameVersionBefore(21) && !IsSavegameVersionBefore(15)) {
1280 for (TileIndex t = 0; t < map_size; t++) {
1281 switch (GetTileType(t)) {
1282 case MP_RAILWAY:
1283 if (HasSignals(t)) {
1284 /* Original signal type/variant was stored in m4 but since saveload
1285 * version 48 they are in m2. The bits has been already moved to m2
1286 * (see the code somewhere above) so don't use m4, use m2 instead. */
1287
1288 /* convert PBS signals to combo-signals */
1289 if (HasBit(_m[t].m2, 2)) SB(_m[t].m2, 0, 2, SIGTYPE_COMBO);
1290
1291 /* move the signal variant back */
1292 SB(_m[t].m2, 2, 1, HasBit(_m[t].m2, 3) ? SIG_SEMAPHORE : SIG_ELECTRIC);
1293 ClrBit(_m[t].m2, 3);
1294 }
1295
1296 /* Clear PBS reservation on track */
1297 if (!IsRailDepotTile(t)) {
1298 SB(_m[t].m4, 4, 4, 0);
1299 } else {
1300 ClrBit(_m[t].m3, 6);
1301 }
1302 break;
1303
1304 case MP_STATION: // Clear PBS reservation on station
1305 ClrBit(_m[t].m3, 6);
1306 break;
1307
1308 default: break;
1309 }
1310 }
1311 }
1312
1313 if (IsSavegameVersionBefore(25)) {
1314 RoadVehicle *rv;
1315 FOR_ALL_ROADVEHICLES(rv) {
1316 rv->vehstatus &= ~0x40;
1317 }
1318 }
1319
1320 if (IsSavegameVersionBefore(26)) {
1321 Station *st;
1322 FOR_ALL_STATIONS(st) {
1323 st->last_vehicle_type = VEH_INVALID;
1324 }
1325 }
1326
1327 YapfNotifyTrackLayoutChange(INVALID_TILE, INVALID_TRACK);
1328
1329 if (IsSavegameVersionBefore(34)) {
1330 Company *c;
1331 FOR_ALL_COMPANIES(c) ResetCompanyLivery(c);
1332 }
1333
1334 Company *c;
1335 FOR_ALL_COMPANIES(c) {
1336 c->avail_railtypes = GetCompanyRailtypes(c->index);
1337 c->avail_roadtypes = GetCompanyRoadtypes(c->index);
1338 }
1339
1340 if (!IsSavegameVersionBefore(27)) AfterLoadStations();
1341
1342 /* Time starts at 0 instead of 1920.
1343 * Account for this in older games by adding an offset */
1344 if (IsSavegameVersionBefore(31)) {
1345 Station *st;
1346 Waypoint *wp;
1347 Engine *e;
1348 Industry *i;
1349 Vehicle *v;
1350
1351 _date += DAYS_TILL_ORIGINAL_BASE_YEAR;
1352 _cur_year += ORIGINAL_BASE_YEAR;
1353
1354 FOR_ALL_STATIONS(st) st->build_date += DAYS_TILL_ORIGINAL_BASE_YEAR;
1355 FOR_ALL_WAYPOINTS(wp) wp->build_date += DAYS_TILL_ORIGINAL_BASE_YEAR;
1356 FOR_ALL_ENGINES(e) e->intro_date += DAYS_TILL_ORIGINAL_BASE_YEAR;
1357 FOR_ALL_COMPANIES(c) c->inaugurated_year += ORIGINAL_BASE_YEAR;
1358 FOR_ALL_INDUSTRIES(i) i->last_prod_year += ORIGINAL_BASE_YEAR;
1359
1360 FOR_ALL_VEHICLES(v) {
1361 v->date_of_last_service += DAYS_TILL_ORIGINAL_BASE_YEAR;
1362 v->build_year += ORIGINAL_BASE_YEAR;
1363 }
1364 }
1365
1366 /* From 32 on we save the industry who made the farmland.
1367 * To give this prettiness to old savegames, we remove all farmfields and
1368 * plant new ones. */
1369 if (IsSavegameVersionBefore(32)) {
1370 Industry *i;
1371
1372 for (TileIndex t = 0; t < map_size; t++) {
1373 if (IsTileType(t, MP_CLEAR) && IsClearGround(t, CLEAR_FIELDS)) {
1374 /* remove fields */
1375 MakeClear(t, CLEAR_GRASS, 3);
1376 }
1377 }
1378
1379 FOR_ALL_INDUSTRIES(i) {
1380 uint j;
1381
1382 if (GetIndustrySpec(i->type)->behaviour & INDUSTRYBEH_PLANT_ON_BUILT) {
1383 for (j = 0; j != 50; j++) PlantRandomFarmField(i);
1384 }
1385 }
1386 }
1387
1388 /* Setting no refit flags to all orders in savegames from before refit in orders were added */
1389 if (IsSavegameVersionBefore(36)) {
1390 Order *order;
1391 Vehicle *v;
1392
1393 FOR_ALL_ORDERS(order) {
1394 order->SetRefit(CT_NO_REFIT);
1395 }
1396
1397 FOR_ALL_VEHICLES(v) {
1398 v->current_order.SetRefit(CT_NO_REFIT);
1399 }
1400 }
1401
1402 /* from version 38 we have optional elrails, since we cannot know the
1403 * preference of a user, let elrails enabled; it can be disabled manually */
1404 if (IsSavegameVersionBefore(38)) _settings_game.vehicle.disable_elrails = false;
1405 /* do the same as when elrails were enabled/disabled manually just now */
1406 SettingsDisableElrail(_settings_game.vehicle.disable_elrails);
1407 InitializeRailGUI();
1408
1409 /* From version 53, the map array was changed for house tiles to allow
1410 * space for newhouses grf features. A new byte, m7, was also added. */
1411 if (IsSavegameVersionBefore(53)) {
1412 for (TileIndex t = 0; t < map_size; t++) {
1413 if (IsTileType(t, MP_HOUSE)) {
1414 if (GB(_m[t].m3, 6, 2) != TOWN_HOUSE_COMPLETED) {
1415 /* Move the construction stage from m3[7..6] to m5[5..4].
1416 * The construction counter does not have to move. */
1417 SB(_m[t].m5, 3, 2, GB(_m[t].m3, 6, 2));
1418 SB(_m[t].m3, 6, 2, 0);
1419
1420 /* The "house is completed" bit is now in m6[2]. */
1421 SetHouseCompleted(t, false);
1422 } else {
1423 /* The "lift has destination" bit has been moved from
1424 * m5[7] to m7[0]. */
1425 SB(_me[t].m7, 0, 1, HasBit(_m[t].m5, 7));
1426 ClrBit(_m[t].m5, 7);
1427
1428 /* The "lift is moving" bit has been removed, as it does
1429 * the same job as the "lift has destination" bit. */
1430 ClrBit(_m[t].m1, 7);
1431
1432 /* The position of the lift goes from m1[7..0] to m6[7..2],
1433 * making m1 totally free, now. The lift position does not
1434 * have to be a full byte since the maximum value is 36. */
1435 SetLiftPosition(t, GB(_m[t].m1, 0, 6 ));
1436
1437 _m[t].m1 = 0;
1438 _m[t].m3 = 0;
1439 SetHouseCompleted(t, true);
1440 }
1441 }
1442 }
1443 }
1444
1445 /* Check and update house and town values */
1446 UpdateHousesAndTowns();
1447
1448 if (IsSavegameVersionBefore(43)) {
1449 for (TileIndex t = 0; t < map_size; t++) {
1450 if (IsTileType(t, MP_INDUSTRY)) {
1451 switch (GetIndustryGfx(t)) {
1452 case GFX_POWERPLANT_SPARKS:
1453 _m[t].m3 = GB(_m[t].m1, 2, 5);
1454 break;
1455
1456 case GFX_OILWELL_ANIMATED_1:
1457 case GFX_OILWELL_ANIMATED_2:
1458 case GFX_OILWELL_ANIMATED_3:
1459 _m[t].m3 = GB(_m[t].m1, 0, 2);
1460 break;
1461
1462 case GFX_COAL_MINE_TOWER_ANIMATED:
1463 case GFX_COPPER_MINE_TOWER_ANIMATED:
1464 case GFX_GOLD_MINE_TOWER_ANIMATED:
1465 _m[t].m3 = _m[t].m1;
1466 break;
1467
1468 default: // No animation states to change
1469 break;
1470 }
1471 }
1472 }
1473 }
1474
1475 if (IsSavegameVersionBefore(45)) {
1476 Vehicle *v;
1477 /* Originally just the fact that some cargo had been paid for was
1478 * stored to stop people cheating and cashing in several times. This
1479 * wasn't enough though as it was cleared when the vehicle started
1480 * loading again, even if it didn't actually load anything, so now the
1481 * amount that has been paid is stored. */
1482 FOR_ALL_VEHICLES(v) {
1483 ClrBit(v->vehicle_flags, 2);
1484 }
1485 }
1486
1487 /* Buoys do now store the owner of the previous water tile, which can never
1488 * be OWNER_NONE. So replace OWNER_NONE with OWNER_WATER. */
1489 if (IsSavegameVersionBefore(46)) {
1490 Waypoint *wp;
1491 FOR_ALL_WAYPOINTS(wp) {
1492 if ((wp->facilities & FACIL_DOCK) != 0 && IsTileOwner(wp->xy, OWNER_NONE) && TileHeight(wp->xy) == 0) SetTileOwner(wp->xy, OWNER_WATER);
1493 }
1494 }
1495
1496 if (IsSavegameVersionBefore(50)) {
1497 Aircraft *v;
1498 /* Aircraft units changed from 8 mph to 1 km-ish/h */
1499 FOR_ALL_AIRCRAFT(v) {
1500 if (v->subtype <= AIR_AIRCRAFT) {
1501 const AircraftVehicleInfo *avi = AircraftVehInfo(v->engine_type);
1502 v->cur_speed *= 128;
1503 v->cur_speed /= 10;
1504 v->acceleration = avi->acceleration;
1505 }
1506 }
1507 }
1508
1509 if (IsSavegameVersionBefore(49)) FOR_ALL_COMPANIES(c) c->face = ConvertFromOldCompanyManagerFace(c->face);
1510
1511 if (IsSavegameVersionBefore(52)) {
1512 for (TileIndex t = 0; t < map_size; t++) {
1513 if (IsTileType(t, MP_OBJECT) && _m[t].m5 == OBJECT_STATUE) {
1514 _m[t].m2 = CalcClosestTownFromTile(t)->index;
1515 }
1516 }
1517 }
1518
1519 /* A setting containing the proportion of towns that grow twice as
1520 * fast was added in version 54. From version 56 this is now saved in the
1521 * town as cities can be built specifically in the scenario editor. */
1522 if (IsSavegameVersionBefore(56)) {
1523 Town *t;
1524
1525 FOR_ALL_TOWNS(t) {
1526 if (_settings_game.economy.larger_towns != 0 && (t->index % _settings_game.economy.larger_towns) == 0) {
1527 t->larger_town = true;
1528 }
1529 }
1530 }
1531
1532 if (IsSavegameVersionBefore(57)) {
1533 Vehicle *v;
1534 /* Added a FIFO queue of vehicles loading at stations */
1535 FOR_ALL_VEHICLES(v) {
1536 if ((v->type != VEH_TRAIN || Train::From(v)->IsFrontEngine()) && // for all locs
1537 !(v->vehstatus & (VS_STOPPED | VS_CRASHED)) && // not stopped or crashed
1538 v->current_order.IsType(OT_LOADING)) { // loading
1539 Station::Get(v->last_station_visited)->loading_vehicles.push_back(v);
1540
1541 /* The loading finished flag is *only* set when actually completely
1542 * finished. Because the vehicle is loading, it is not finished. */
1543 ClrBit(v->vehicle_flags, VF_LOADING_FINISHED);
1544 }
1545 }
1546 } else if (IsSavegameVersionBefore(59)) {
1547 /* For some reason non-loading vehicles could be in the station's loading vehicle list */
1548
1549 Station *st;
1550 FOR_ALL_STATIONS(st) {
1551 std::list<Vehicle *>::iterator iter;
1552 for (iter = st->loading_vehicles.begin(); iter != st->loading_vehicles.end();) {
1553 Vehicle *v = *iter;
1554 iter++;
1555 if (!v->current_order.IsType(OT_LOADING)) st->loading_vehicles.remove(v);
1556 }
1557 }
1558 }
1559
1560 if (IsSavegameVersionBefore(58)) {
1561 /* Setting difficulty industry_density other than zero get bumped to +1
1562 * since a new option (very low at position 1) has been added */
1563 if (_settings_game.difficulty.industry_density > 0) {
1564 _settings_game.difficulty.industry_density++;
1565 }
1566
1567 /* Same goes for number of towns, although no test is needed, just an increment */
1568 _settings_game.difficulty.number_towns++;
1569 }
1570
1571 if (IsSavegameVersionBefore(64)) {
1572 /* Since now we allow different signal types and variants on a single tile.
1573 * Move signal states to m4 to make room and clone the signal type/variant. */
1574 for (TileIndex t = 0; t < map_size; t++) {
1575 if (IsTileType(t, MP_RAILWAY) && HasSignals(t)) {
1576 /* move signal states */
1577 SetSignalStates(t, GB(_m[t].m2, 4, 4));
1578 SB(_m[t].m2, 4, 4, 0);
1579 /* clone signal type and variant */
1580 SB(_m[t].m2, 4, 3, GB(_m[t].m2, 0, 3));
1581 }
1582 }
1583 }
1584
1585 if (IsSavegameVersionBefore(69)) {
1586 /* In some old savegames a bit was cleared when it should not be cleared */
1587 RoadVehicle *rv;
1588 FOR_ALL_ROADVEHICLES(rv) {
1589 if (rv->state == 250 || rv->state == 251) {
1590 SetBit(rv->state, 2);
1591 }
1592 }
1593 }
1594
1595 if (IsSavegameVersionBefore(70)) {
1596 /* Added variables to support newindustries */
1597 Industry *i;
1598 FOR_ALL_INDUSTRIES(i) i->founder = OWNER_NONE;
1599 }
1600
1601 /* From version 82, old style canals (above sealevel (0), WATER owner) are no longer supported.
1602 Replace the owner for those by OWNER_NONE. */
1603 if (IsSavegameVersionBefore(82)) {
1604 for (TileIndex t = 0; t < map_size; t++) {
1605 if (IsTileType(t, MP_WATER) &&
1606 GetWaterTileType(t) == WATER_TILE_CLEAR &&
1607 GetTileOwner(t) == OWNER_WATER &&
1608 TileHeight(t) != 0) {
1609 SetTileOwner(t, OWNER_NONE);
1610 }
1611 }
1612 }
1613
1614 /*
1615 * Add the 'previous' owner to the ship depots so we can reset it with
1616 * the correct values when it gets destroyed. This prevents that
1617 * someone can remove canals owned by somebody else and it prevents
1618 * making floods using the removal of ship depots.
1619 */
1620 if (IsSavegameVersionBefore(83)) {
1621 for (TileIndex t = 0; t < map_size; t++) {
1622 if (IsShipDepotTile(t)) {
1623 _m[t].m4 = (TileHeight(t) == 0) ? OWNER_WATER : OWNER_NONE;
1624 }
1625 }
1626 }
1627
1628 if (IsSavegameVersionBefore(74)) {
1629 Station *st;
1630 FOR_ALL_STATIONS(st) {
1631 for (CargoID c = 0; c < NUM_CARGO; c++) {
1632 st->goods[c].last_speed = 0;
1633 if (st->goods[c].cargo.AvailableCount() != 0) SetBit(st->goods[c].status, GoodsEntry::GES_RATING);
1634 }
1635 }
1636 }
1637
1638 if (IsSavegameVersionBefore(78)) {
1639 Industry *i;
1640 uint j;
1641 FOR_ALL_INDUSTRIES(i) {
1642 const IndustrySpec *indsp = GetIndustrySpec(i->type);
1643 for (j = 0; j < lengthof(i->produced_cargo); j++) {
1644 i->produced_cargo[j] = indsp->produced_cargo[j];
1645 }
1646 for (j = 0; j < lengthof(i->accepts_cargo); j++) {
1647 i->accepts_cargo[j] = indsp->accepts_cargo[j];
1648 }
1649 }
1650 }
1651
1652 /* Before version 81, the density of grass was always stored as zero, and
1653 * grassy trees were always drawn fully grassy. Furthermore, trees on rough
1654 * land used to have zero density, now they have full density. Therefore,
1655 * make all grassy/rough land trees have a density of 3. */
1656 if (IsSavegameVersionBefore(81)) {
1657 for (TileIndex t = 0; t < map_size; t++) {
1658 if (GetTileType(t) == MP_TREES) {
1659 TreeGround groundType = (TreeGround)GB(_m[t].m2, 4, 2);
1660 if (groundType != TREE_GROUND_SNOW_DESERT) SB(_m[t].m2, 6, 2, 3);
1661 }
1662 }
1663 }
1664
1665
1666 if (IsSavegameVersionBefore(93)) {
1667 /* Rework of orders. */
1668 Order *order;
1669 FOR_ALL_ORDERS(order) order->ConvertFromOldSavegame();
1670
1671 Vehicle *v;
1672 FOR_ALL_VEHICLES(v) {
1673 if (v->orders.list != NULL && v->orders.list->GetFirstOrder() != NULL && v->orders.list->GetFirstOrder()->IsType(OT_NOTHING)) {
1674 v->orders.list->FreeChain();
1675 v->orders.list = NULL;
1676 }
1677
1678 v->current_order.ConvertFromOldSavegame();
1679 if (v->type == VEH_ROAD && v->IsPrimaryVehicle() && v->FirstShared() == v) {
1680 FOR_VEHICLE_ORDERS(v, order) order->SetNonStopType(ONSF_NO_STOP_AT_INTERMEDIATE_STATIONS);
1681 }
1682 }
1683 } else if (IsSavegameVersionBefore(94)) {
1684 /* Unload and transfer are now mutual exclusive. */
1685 Order *order;
1686 FOR_ALL_ORDERS(order) {
1687 if ((order->GetUnloadType() & (OUFB_UNLOAD | OUFB_TRANSFER)) == (OUFB_UNLOAD | OUFB_TRANSFER)) {
1688 order->SetUnloadType(OUFB_TRANSFER);
1689 order->SetLoadType(OLFB_NO_LOAD);
1690 }
1691 }
1692
1693 Vehicle *v;
1694 FOR_ALL_VEHICLES(v) {
1695 if ((v->current_order.GetUnloadType() & (OUFB_UNLOAD | OUFB_TRANSFER)) == (OUFB_UNLOAD | OUFB_TRANSFER)) {
1696 v->current_order.SetUnloadType(OUFB_TRANSFER);
1697 v->current_order.SetLoadType(OLFB_NO_LOAD);
1698 }
1699 }
1700 }
1701
1702 if (IsSavegameVersionBefore(84)) {
1703 /* Set all share owners to INVALID_COMPANY for
1704 * 1) all inactive companies
1705 * (when inactive companies were stored in the savegame - TTD, TTDP and some
1706 * *really* old revisions of OTTD; else it is already set in InitializeCompanies())
1707 * 2) shares that are owned by inactive companies or self
1708 * (caused by cheating clients in earlier revisions) */
1709 FOR_ALL_COMPANIES(c) {
1710 for (uint i = 0; i < 4; i++) {
1711 CompanyID company = c->share_owners[i];
1712 if (company == INVALID_COMPANY) continue;
1713 if (!Company::IsValidID(company) || company == c->index) c->share_owners[i] = INVALID_COMPANY;
1714 }
1715 }
1716 }
1717
1718 /* The water class was moved/unified. */
1719 if (IsSavegameVersionBefore(146)) {
1720 for (TileIndex t = 0; t < map_size; t++) {
1721 switch (GetTileType(t)) {
1722 case MP_STATION:
1723 switch (GetStationType(t)) {
1724 case STATION_OILRIG:
1725 case STATION_DOCK:
1726 case STATION_BUOY:
1727 SetWaterClass(t, (WaterClass)GB(_m[t].m3, 0, 2));
1728 SB(_m[t].m3, 0, 2, 0);
1729 break;
1730
1731 default:
1732 SetWaterClass(t, WATER_CLASS_INVALID);
1733 break;
1734 }
1735 break;
1736
1737 case MP_WATER:
1738 SetWaterClass(t, (WaterClass)GB(_m[t].m3, 0, 2));
1739 SB(_m[t].m3, 0, 2, 0);
1740 break;
1741
1742 case MP_OBJECT:
1743 SetWaterClass(t, WATER_CLASS_INVALID);
1744 break;
1745
1746 default:
1747 /* No water class. */
1748 break;
1749 }
1750 }
1751 }
1752
1753 if (IsSavegameVersionBefore(86)) {
1754 for (TileIndex t = 0; t < map_size; t++) {
1755 /* Move river flag and update canals to use water class */
1756 if (IsTileType(t, MP_WATER)) {
1757 if (GetWaterClass(t) != WATER_CLASS_RIVER) {
1758 if (IsWater(t)) {
1759 Owner o = GetTileOwner(t);
1760 if (o == OWNER_WATER) {
1761 MakeSea(t);
1762 } else {
1763 MakeCanal(t, o, Random());
1764 }
1765 } else if (IsShipDepot(t)) {
1766 Owner o = (Owner)_m[t].m4; // Original water owner
1767 SetWaterClass(t, o == OWNER_WATER ? WATER_CLASS_SEA : WATER_CLASS_CANAL);
1768 }
1769 }
1770 }
1771 }
1772
1773 /* Update locks, depots, docks and buoys to have a water class based
1774 * on its neighbouring tiles. Done after river and canal updates to
1775 * ensure neighbours are correct. */
1776 for (TileIndex t = 0; t < map_size; t++) {
1777 if (!IsTileFlat(t)) continue;
1778
1779 if (IsTileType(t, MP_WATER) && IsLock(t)) SetWaterClassDependingOnSurroundings(t, false);
1780 if (IsTileType(t, MP_STATION) && (IsDock(t) || IsBuoy(t))) SetWaterClassDependingOnSurroundings(t, false);
1781 }
1782 }
1783
1784 if (IsSavegameVersionBefore(87)) {
1785 for (TileIndex t = 0; t < map_size; t++) {
1786 /* skip oil rigs at borders! */
1787 if ((IsTileType(t, MP_WATER) || IsBuoyTile(t)) &&
1788 (TileX(t) == 0 || TileY(t) == 0 || TileX(t) == MapMaxX() - 1 || TileY(t) == MapMaxY() - 1)) {
1789 /* Some version 86 savegames have wrong water class at map borders (under buoy, or after removing buoy).
1790 * This conversion has to be done before buoys with invalid owner are removed. */
1791 SetWaterClass(t, WATER_CLASS_SEA);
1792 }
1793
1794 if (IsBuoyTile(t) || IsDriveThroughStopTile(t) || IsTileType(t, MP_WATER)) {
1795 Owner o = GetTileOwner(t);
1796 if (o < MAX_COMPANIES && !Company::IsValidID(o)) {
1797 Backup<CompanyByte> cur_company(_current_company, o, FILE_LINE);
1798 ChangeTileOwner(t, o, INVALID_OWNER);
1799 cur_company.Restore();
1800 }
1801 if (IsBuoyTile(t)) {
1802 /* reset buoy owner to OWNER_NONE in the station struct
1803 * (even if it is owned by active company) */
1804 Waypoint::GetByTile(t)->owner = OWNER_NONE;
1805 }
1806 } else if (IsTileType(t, MP_ROAD)) {
1807 /* works for all RoadTileType */
1808 for (RoadType rt = ROADTYPE_ROAD; rt < ROADTYPE_END; rt++) {
1809 /* update even non-existing road types to update tile owner too */
1810 Owner o = GetRoadOwner(t, rt);
1811 if (o < MAX_COMPANIES && !Company::IsValidID(o)) SetRoadOwner(t, rt, OWNER_NONE);
1812 }
1813 if (IsLevelCrossing(t)) {
1814 if (!Company::IsValidID(GetTileOwner(t))) FixOwnerOfRailTrack(t);
1815 }
1816 } else if (IsPlainRailTile(t)) {
1817 if (!Company::IsValidID(GetTileOwner(t))) FixOwnerOfRailTrack(t);
1818 }
1819 }
1820
1821 /* Convert old PF settings to new */
1822 if (_settings_game.pf.yapf.rail_use_yapf || IsSavegameVersionBefore(28)) {
1823 _settings_game.pf.pathfinder_for_trains = VPF_YAPF;
1824 } else {
1825 _settings_game.pf.pathfinder_for_trains = VPF_NPF;
1826 }
1827
1828 if (_settings_game.pf.yapf.road_use_yapf || IsSavegameVersionBefore(28)) {
1829 _settings_game.pf.pathfinder_for_roadvehs = VPF_YAPF;
1830 } else {
1831 _settings_game.pf.pathfinder_for_roadvehs = VPF_NPF;
1832 }
1833
1834 if (_settings_game.pf.yapf.ship_use_yapf) {
1835 _settings_game.pf.pathfinder_for_ships = VPF_YAPF;
1836 } else {
1837 _settings_game.pf.pathfinder_for_ships = (_settings_game.pf.new_pathfinding_all ? VPF_NPF : VPF_OPF);
1838 }
1839 }
1840
1841 if (IsSavegameVersionBefore(88)) {
1842 /* Profits are now with 8 bit fract */
1843 Vehicle *v;
1844 FOR_ALL_VEHICLES(v) {
1845 v->profit_this_year <<= 8;
1846 v->profit_last_year <<= 8;
1847 v->running_ticks = 0;
1848 }
1849 }
1850
1851 if (IsSavegameVersionBefore(91)) {
1852 /* Increase HouseAnimationFrame from 5 to 7 bits */
1853 for (TileIndex t = 0; t < map_size; t++) {
1854 if (IsTileType(t, MP_HOUSE) && GetHouseType(t) >= NEW_HOUSE_OFFSET) {
1855 SB(_me[t].m6, 2, 6, GB(_me[t].m6, 3, 5));
1856 SB(_m[t].m3, 5, 1, 0);
1857 }
1858 }
1859 }
1860
1861 if (IsSavegameVersionBefore(62)) {
1862 /* Remove all trams from savegames without tram support.
1863 * There would be trams without tram track under causing crashes sooner or later. */
1864 RoadVehicle *v;
1865 FOR_ALL_ROADVEHICLES(v) {
1866 if (v->First() == v && HasBit(EngInfo(v->engine_type)->misc_flags, EF_ROAD_TRAM)) {
1867 ShowErrorMessage(STR_WARNING_LOADGAME_REMOVED_TRAMS, INVALID_STRING_ID, WL_CRITICAL);
1868 delete v;
1869 }
1870 }
1871 }
1872
1873 if (IsSavegameVersionBefore(99)) {
1874 for (TileIndex t = 0; t < map_size; t++) {
1875 /* Set newly introduced WaterClass of industry tiles */
1876 if (IsTileType(t, MP_STATION) && IsOilRig(t)) {
1877 SetWaterClassDependingOnSurroundings(t, true);
1878 }
1879 if (IsTileType(t, MP_INDUSTRY)) {
1880 if ((GetIndustrySpec(GetIndustryType(t))->behaviour & INDUSTRYBEH_BUILT_ONWATER) != 0) {
1881 SetWaterClassDependingOnSurroundings(t, true);
1882 } else {
1883 SetWaterClass(t, WATER_CLASS_INVALID);
1884 }
1885 }
1886
1887 /* Replace "house construction year" with "house age" */
1888 if (IsTileType(t, MP_HOUSE) && IsHouseCompleted(t)) {
1889 _m[t].m5 = Clamp(_cur_year - (_m[t].m5 + ORIGINAL_BASE_YEAR), 0, 0xFF);
1890 }
1891 }
1892 }
1893
1894 /* Move the signal variant back up one bit for PBS. We don't convert the old PBS
1895 * format here, as an old layout wouldn't work properly anyway. To be safe, we
1896 * clear any possible PBS reservations as well. */
1897 if (IsSavegameVersionBefore(100)) {
1898 for (TileIndex t = 0; t < map_size; t++) {
1899 switch (GetTileType(t)) {
1900 case MP_RAILWAY:
1901 if (HasSignals(t)) {
1902 /* move the signal variant */
1903 SetSignalVariant(t, TRACK_UPPER, HasBit(_m[t].m2, 2) ? SIG_SEMAPHORE : SIG_ELECTRIC);
1904 SetSignalVariant(t, TRACK_LOWER, HasBit(_m[t].m2, 6) ? SIG_SEMAPHORE : SIG_ELECTRIC);
1905 ClrBit(_m[t].m2, 2);
1906 ClrBit(_m[t].m2, 6);
1907 }
1908
1909 /* Clear PBS reservation on track */
1910 if (IsRailDepot(t)) {
1911 SetDepotReservation(t, false);
1912 } else {
1913 SetTrackReservation(t, TRACK_BIT_NONE);
1914 }
1915 break;
1916
1917 case MP_ROAD: // Clear PBS reservation on crossing
1918 if (IsLevelCrossing(t)) SetCrossingReservation(t, false);
1919 break;
1920
1921 case MP_STATION: // Clear PBS reservation on station
1922 if (HasStationRail(t)) SetRailStationReservation(t, false);
1923 break;
1924
1925 case MP_TUNNELBRIDGE: // Clear PBS reservation on tunnels/bridges
1926 if (GetTunnelBridgeTransportType(t) == TRANSPORT_RAIL) SetTunnelBridgeReservation(t, false);
1927 break;
1928
1929 default: break;
1930 }
1931 }
1932 }
1933
1934 /* Reserve all tracks trains are currently on. */
1935 if (IsSavegameVersionBefore(101)) {
1936 const Train *t;
1937 FOR_ALL_TRAINS(t) {
1938 if (t->First() == t) t->ReserveTrackUnderConsist();
1939 }
1940 }
1941
1942 if (IsSavegameVersionBefore(102)) {
1943 for (TileIndex t = 0; t < map_size; t++) {
1944 /* Now all crossings should be in correct state */
1945 if (IsLevelCrossingTile(t)) UpdateLevelCrossing(t, false);
1946 }
1947 }
1948
1949 if (IsSavegameVersionBefore(103)) {
1950 /* Non-town-owned roads now store the closest town */
1951 UpdateNearestTownForRoadTiles(false);
1952
1953 /* signs with invalid owner left from older savegames */
1954 Sign *si;
1955 FOR_ALL_SIGNS(si) {
1956 if (si->owner != OWNER_NONE && !Company::IsValidID(si->owner)) si->owner = OWNER_NONE;
1957 }
1958
1959 /* Station can get named based on an industry type, but the current ones
1960 * are not, so mark them as if they are not named by an industry. */
1961 Station *st;
1962 FOR_ALL_STATIONS(st) {
1963 st->indtype = IT_INVALID;
1964 }
1965 }
1966
1967 if (IsSavegameVersionBefore(104)) {
1968 Aircraft *a;
1969 FOR_ALL_AIRCRAFT(a) {
1970 /* Set engine_type of shadow and rotor */
1971 if (!a->IsNormalAircraft()) {
1972 a->engine_type = a->First()->engine_type;
1973 }
1974 }
1975
1976 /* More companies ... */
1977 Company *c;
1978 FOR_ALL_COMPANIES(c) {
1979 if (c->bankrupt_asked == 0xFF) c->bankrupt_asked = 0xFFFF;
1980 }
1981
1982 Engine *e;
1983 FOR_ALL_ENGINES(e) {
1984 if (e->company_avail == 0xFF) e->company_avail = 0xFFFF;
1985 }
1986
1987 Town *t;
1988 FOR_ALL_TOWNS(t) {
1989 if (t->have_ratings == 0xFF) t->have_ratings = 0xFFFF;
1990 for (uint i = 8; i != MAX_COMPANIES; i++) t->ratings[i] = RATING_INITIAL;
1991 }
1992 }
1993
1994 if (IsSavegameVersionBefore(112)) {
1995 for (TileIndex t = 0; t < map_size; t++) {
1996 /* Check for HQ bit being set, instead of using map accessor,
1997 * since we've already changed it code-wise */
1998 if (IsTileType(t, MP_OBJECT) && HasBit(_m[t].m5, 7)) {
1999 /* Move size and part identification of HQ out of the m5 attribute,
2000 * on new locations */
2001 _m[t].m3 = GB(_m[t].m5, 0, 5);
2002 _m[t].m5 = OBJECT_HQ;
2003 }
2004 }
2005 }
2006 if (IsSavegameVersionBefore(144)) {
2007 for (TileIndex t = 0; t < map_size; t++) {
2008 if (!IsTileType(t, MP_OBJECT)) continue;
2009
2010 /* Reordering/generalisation of the object bits. */
2011 ObjectType type = _m[t].m5;
2012 SB(_me[t].m6, 2, 4, type == OBJECT_HQ ? GB(_m[t].m3, 2, 3) : 0);
2013 _m[t].m3 = type == OBJECT_HQ ? GB(_m[t].m3, 1, 1) | GB(_m[t].m3, 0, 1) << 4 : 0;
2014
2015 /* Make sure those bits are clear as well! */
2016 _m[t].m4 = 0;
2017 _me[t].m7 = 0;
2018 }
2019 }
2020
2021 if (IsSavegameVersionBefore(147) && Object::GetNumItems() == 0) {
2022 /* Make real objects for object tiles. */
2023 for (TileIndex t = 0; t < map_size; t++) {
2024 if (!IsTileType(t, MP_OBJECT)) continue;
2025
2026 if (Town::GetNumItems() == 0) {
2027 /* No towns, so remove all objects! */
2028 DoClearSquare(t);
2029 } else {
2030 uint offset = _m[t].m3;
2031
2032 /* Also move the animation state. */
2033 _m[t].m3 = GB(_me[t].m6, 2, 4);
2034 SB(_me[t].m6, 2, 4, 0);
2035
2036 if (offset == 0) {
2037 /* No offset, so make the object. */
2038 ObjectType type = _m[t].m5;
2039 int size = type == OBJECT_HQ ? 2 : 1;
2040
2041 if (!Object::CanAllocateItem()) {
2042 /* Nice... you managed to place 64k lighthouses and
2043 * antennae on the map... boohoo. */
2044 SlError(STR_ERROR_TOO_MANY_OBJECTS);
2045 }
2046
2047 Object *o = new Object();
2048 o->location.tile = t;
2049 o->location.w = size;
2050 o->location.h = size;
2051 o->build_date = _date;
2052 o->town = type == OBJECT_STATUE ? Town::Get(_m[t].m2) : CalcClosestTownFromTile(t, UINT_MAX);
2053 _m[t].m2 = o->index;
2054 Object::IncTypeCount(type);
2055 } else {
2056 /* We're at an offset, so get the ID from our "root". */
2057 TileIndex northern_tile = t - TileXY(GB(offset, 0, 4), GB(offset, 4, 4));
2058 assert(IsTileType(northern_tile, MP_OBJECT));
2059 _m[t].m2 = _m[northern_tile].m2;
2060 }
2061 }
2062 }
2063 }
2064
2065 if (IsSavegameVersionBefore(113)) {
2066 /* allow_town_roads is added, set it if town_layout wasn't TL_NO_ROADS */
2067 if (_settings_game.economy.town_layout == 0) { // was TL_NO_ROADS
2068 _settings_game.economy.allow_town_roads = false;
2069 _settings_game.economy.town_layout = TL_BETTER_ROADS;
2070 } else {
2071 _settings_game.economy.allow_town_roads = true;
2072 _settings_game.economy.town_layout = _settings_game.economy.town_layout - 1;
2073 }
2074
2075 /* Initialize layout of all towns. Older versions were using different
2076 * generator for random town layout, use it if needed. */
2077 Town *t;
2078 FOR_ALL_TOWNS(t) {
2079 if (_settings_game.economy.town_layout != TL_RANDOM) {
2080 t->layout = _settings_game.economy.town_layout;
2081 continue;
2082 }
2083
2084 /* Use old layout randomizer code */
2085 byte layout = TileHash(TileX(t->xy), TileY(t->xy)) % 6;
2086 switch (layout) {
2087 default: break;
2088 case 5: layout = 1; break;
2089 case 0: layout = 2; break;
2090 }
2091 t->layout = layout - 1;
2092 }
2093 }
2094
2095 if (IsSavegameVersionBefore(114)) {
2096 /* There could be (deleted) stations with invalid owner, set owner to OWNER NONE.
2097 * The conversion affects oil rigs and buoys too, but it doesn't matter as
2098 * they have st->owner == OWNER_NONE already. */
2099 Station *st;
2100 FOR_ALL_STATIONS(st) {
2101 if (!Company::IsValidID(st->owner)) st->owner = OWNER_NONE;
2102 }
2103 }
2104
2105 /* Trains could now stop in a specific location. */
2106 if (IsSavegameVersionBefore(117)) {
2107 Order *o;
2108 FOR_ALL_ORDERS(o) {
2109 if (o->IsType(OT_GOTO_STATION)) o->SetStopLocation(OSL_PLATFORM_FAR_END);
2110 }
2111 }
2112
2113 if (IsSavegameVersionBefore(120)) {
2114 extern VehicleDefaultSettings _old_vds;
2115 Company *c;
2116 FOR_ALL_COMPANIES(c) {
2117 c->settings.vehicle = _old_vds;
2118 }
2119 }
2120
2121 if (IsSavegameVersionBefore(121)) {
2122 /* Delete small ufos heading for non-existing vehicles */
2123 Vehicle *v;
2124 FOR_ALL_DISASTERVEHICLES(v) {
2125 if (v->subtype == 2 /* ST_SMALL_UFO */ && v->current_order.GetDestination() != 0) {
2126 const Vehicle *u = Vehicle::GetIfValid(v->dest_tile);
2127 if (u == NULL || u->type != VEH_ROAD || !RoadVehicle::From(u)->IsFrontEngine()) {
2128 delete v;
2129 }
2130 }
2131 }
2132
2133 /* We didn't store cargo payment yet, so make them for vehicles that are
2134 * currently at a station and loading/unloading. If they don't get any
2135 * payment anymore they just removed in the next load/unload cycle.
2136 * However, some 0.7 versions might have cargo payment. For those we just
2137 * add cargopayment for the vehicles that don't have it.
2138 */
2139 Station *st;
2140 FOR_ALL_STATIONS(st) {
2141 std::list<Vehicle *>::iterator iter;
2142 for (iter = st->loading_vehicles.begin(); iter != st->loading_vehicles.end(); ++iter) {
2143 /* There are always as many CargoPayments as Vehicles. We need to make the
2144 * assert() in Pool::GetNew() happy by calling CanAllocateItem(). */
2145 assert_compile(CargoPaymentPool::MAX_SIZE == VehiclePool::MAX_SIZE);
2146 assert(CargoPayment::CanAllocateItem());
2147 Vehicle *v = *iter;
2148 if (v->cargo_payment == NULL) v->cargo_payment = new CargoPayment(v);
2149 }
2150 }
2151 }
2152
2153 if (IsSavegameVersionBefore(122)) {
2154 /* Animated tiles would sometimes not be actually animated or
2155 * in case of old savegames duplicate. */
2156
2157 extern TileIndex *_animated_tile_list;
2158 extern uint _animated_tile_count;
2159
2160 for (uint i = 0; i < _animated_tile_count; /* Nothing */) {
2161 /* Remove if tile is not animated */
2162 bool remove = _tile_type_procs[GetTileType(_animated_tile_list[i])]->animate_tile_proc == NULL;
2163
2164 /* and remove if duplicate */
2165 for (uint j = 0; !remove && j < i; j++) {
2166 remove = _animated_tile_list[i] == _animated_tile_list[j];
2167 }
2168
2169 if (remove) {
2170 DeleteAnimatedTile(_animated_tile_list[i]);
2171 } else {
2172 i++;
2173 }
2174 }
2175 }
2176
2177 if (IsSavegameVersionBefore(124) && !IsSavegameVersionBefore(1)) {
2178 /* The train station tile area was added, but for really old (TTDPatch) it's already valid. */
2179 Waypoint *wp;
2180 FOR_ALL_WAYPOINTS(wp) {
2181 if (wp->facilities & FACIL_TRAIN) {
2182 wp->train_station.tile = wp->xy;
2183 wp->train_station.w = 1;
2184 wp->train_station.h = 1;
2185 } else {
2186 wp->train_station.tile = INVALID_TILE;
2187 wp->train_station.w = 0;
2188 wp->train_station.h = 0;
2189 }
2190 }
2191 }
2192
2193 if (IsSavegameVersionBefore(125)) {
2194 /* Convert old subsidies */
2195 Subsidy *s;
2196 FOR_ALL_SUBSIDIES(s) {
2197 if (s->remaining < 12) {
2198 /* Converting nonawarded subsidy */
2199 s->remaining = 12 - s->remaining; // convert "age" to "remaining"
2200 s->awarded = INVALID_COMPANY; // not awarded to anyone
2201 const CargoSpec *cs = CargoSpec::Get(s->cargo_type);
2202 switch (cs->town_effect) {
2203 case TE_PASSENGERS:
2204 case TE_MAIL:
2205 /* Town -> Town */
2206 s->src_type = s->dst_type = ST_TOWN;
2207 if (Town::IsValidID(s->src) && Town::IsValidID(s->dst)) continue;
2208 break;
2209 case TE_GOODS:
2210 case TE_FOOD:
2211 /* Industry -> Town */
2212 s->src_type = ST_INDUSTRY;
2213 s->dst_type = ST_TOWN;
2214 if (Industry::IsValidID(s->src) && Town::IsValidID(s->dst)) continue;
2215 break;
2216 default:
2217 /* Industry -> Industry */
2218 s->src_type = s->dst_type = ST_INDUSTRY;
2219 if (Industry::IsValidID(s->src) && Industry::IsValidID(s->dst)) continue;
2220 break;
2221 }
2222 } else {
2223 /* Do our best for awarded subsidies. The original source or destination industry
2224 * can't be determined anymore for awarded subsidies, so invalidate them.
2225 * Town -> Town subsidies are converted using simple heuristic */
2226 s->remaining = 24 - s->remaining; // convert "age of awarded subsidy" to "remaining"
2227 const CargoSpec *cs = CargoSpec::Get(s->cargo_type);
2228 switch (cs->town_effect) {
2229 case TE_PASSENGERS:
2230 case TE_MAIL: {
2231 /* Town -> Town */
2232 const Station *ss = Station::GetIfValid(s->src);
2233 const Station *sd = Station::GetIfValid(s->dst);
2234 if (ss != NULL && sd != NULL && ss->owner == sd->owner &&
2235 Company::IsValidID(ss->owner)) {
2236 s->src_type = s->dst_type = ST_TOWN;
2237 s->src = ss->town->index;
2238 s->dst = sd->town->index;
2239 s->awarded = ss->owner;
2240 continue;
2241 }
2242 break;
2243 }
2244 default:
2245 break;
2246 }
2247 }
2248 /* Awarded non-town subsidy or invalid source/destination, invalidate */
2249 delete s;
2250 }
2251 }
2252
2253 if (IsSavegameVersionBefore(126)) {
2254 /* Recompute inflation based on old unround loan limit
2255 * Note: Max loan is 500000. With an inflation of 4% across 170 years
2256 * that results in a max loan of about 0.7 * 2^31.
2257 * So taking the 16 bit fractional part into account there are plenty of bits left
2258 * for unmodified savegames ...
2259 */
2260 uint64 aimed_inflation = (_economy.old_max_loan_unround << 16 | _economy.old_max_loan_unround_fract) / _settings_game.difficulty.max_loan;
2261
2262 /* ... well, just clamp it then. */
2263 if (aimed_inflation > MAX_INFLATION) aimed_inflation = MAX_INFLATION;
2264
2265 /* Simulate the inflation, so we also get the payment inflation */
2266 while (_economy.inflation_prices < aimed_inflation) {
2267 if (AddInflation(false)) break;
2268 }
2269 }
2270
2271 if (IsSavegameVersionBefore(128)) {
2272 const Depot *d;
2273 FOR_ALL_DEPOTS(d) {
2274 _m[d->xy].m2 = d->index;
2275 if (IsTileType(d->xy, MP_WATER)) _m[GetOtherShipDepotTile(d->xy)].m2 = d->index;
2276 }
2277 }
2278
2279 /* The behaviour of force_proceed has been changed. Now
2280 * it counts signals instead of some random time out. */
2281 if (IsSavegameVersionBefore(131)) {
2282 Train *t;
2283 FOR_ALL_TRAINS(t) {
2284 if (t->force_proceed != TFP_NONE) {
2285 t->force_proceed = TFP_STUCK;
2286 }
2287 }
2288 }
2289
2290 /* The bits for the tree ground and tree density have
2291 * been swapped (m2 bits 7..6 and 5..4. */
2292 if (IsSavegameVersionBefore(135)) {
2293 for (TileIndex t = 0; t < map_size; t++) {
2294 if (IsTileType(t, MP_CLEAR)) {
2295 if (GetRawClearGround(t) == CLEAR_SNOW) {
2296 SetClearGroundDensity(t, CLEAR_GRASS, GetClearDensity(t));
2297 SetBit(_m[t].m3, 4);
2298 } else {
2299 ClrBit(_m[t].m3, 4);
2300 }
2301 }
2302 if (IsTileType(t, MP_TREES)) {
2303 uint density = GB(_m[t].m2, 6, 2);
2304 uint ground = GB(_m[t].m2, 4, 2);
2305 uint counter = GB(_m[t].m2, 0, 4);
2306 _m[t].m2 = ground << 6 | density << 4 | counter;
2307 }
2308 }
2309 }
2310
2311 /* Wait counter and load/unload ticks got split. */
2312 if (IsSavegameVersionBefore(136)) {
2313 Aircraft *a;
2314 FOR_ALL_AIRCRAFT(a) {
2315 a->turn_counter = a->current_order.IsType(OT_LOADING) ? 0 : a->load_unload_ticks;
2316 }
2317
2318 Train *t;
2319 FOR_ALL_TRAINS(t) {
2320 t->wait_counter = t->current_order.IsType(OT_LOADING) ? 0 : t->load_unload_ticks;
2321 }
2322 }
2323
2324 /* Airport tile animation uses animation frame instead of other graphics id */
2325 if (IsSavegameVersionBefore(137)) {
2326 struct AirportTileConversion {
2327 byte old_start;
2328 byte num_frames;
2329 };
2330 static const AirportTileConversion atc[] = {
2331 {31, 12}, // APT_RADAR_GRASS_FENCE_SW
2332 {50, 4}, // APT_GRASS_FENCE_NE_FLAG
2333 {62, 2}, // 1 unused tile
2334 {66, 12}, // APT_RADAR_FENCE_SW
2335 {78, 12}, // APT_RADAR_FENCE_NE
2336 {101, 10}, // 9 unused tiles
2337 {111, 8}, // 7 unused tiles
2338 {119, 15}, // 14 unused tiles (radar)
2339 {140, 4}, // APT_GRASS_FENCE_NE_FLAG_2
2340 };
2341 for (TileIndex t = 0; t < map_size; t++) {
2342 if (IsAirportTile(t)) {
2343 StationGfx old_gfx = GetStationGfx(t);
2344 byte offset = 0;
2345 for (uint i = 0; i < lengthof(atc); i++) {
2346 if (old_gfx < atc[i].old_start) {
2347 SetStationGfx(t, old_gfx - offset);
2348 break;
2349 }
2350 if (old_gfx < atc[i].old_start + atc[i].num_frames) {
2351 SetAnimationFrame(t, old_gfx - atc[i].old_start);
2352 SetStationGfx(t, atc[i].old_start - offset);
2353 break;
2354 }
2355 offset += atc[i].num_frames - 1;
2356 }
2357 }
2358 }
2359 }
2360
2361 if (IsSavegameVersionBefore(140)) {
2362 Station *st;
2363 FOR_ALL_STATIONS(st) {
2364 if (st->airport.tile != INVALID_TILE) {
2365 st->airport.w = st->airport.GetSpec()->size_x;
2366 st->airport.h = st->airport.GetSpec()->size_y;
2367 }
2368 }
2369 }
2370
2371 if (IsSavegameVersionBefore(141)) {
2372 for (TileIndex t = 0; t < map_size; t++) {
2373 /* Reset tropic zone for VOID tiles, they shall not have any. */
2374 if (IsTileType(t, MP_VOID)) SetTropicZone(t, TROPICZONE_NORMAL);
2375 }
2376
2377 /* We need to properly number/name the depots.
2378 * The first step is making sure none of the depots uses the
2379 * 'default' names, after that we can assign the names. */
2380 Depot *d;
2381 FOR_ALL_DEPOTS(d) d->town_cn = UINT16_MAX;
2382
2383 FOR_ALL_DEPOTS(d) MakeDefaultName(d);
2384 }
2385
2386 if (IsSavegameVersionBefore(142)) {
2387 Depot *d;
2388 FOR_ALL_DEPOTS(d) d->build_date = _date;
2389 }
2390
2391 /* In old versions it was possible to remove an airport while a plane was
2392 * taking off or landing. This gives all kind of problems when building
2393 * another airport in the same station so we don't allow that anymore.
2394 * For old savegames with such aircraft we just throw them in the air and
2395 * treat the aircraft like they were flying already. */
2396 if (IsSavegameVersionBefore(146)) {
2397 Aircraft *v;
2398 FOR_ALL_AIRCRAFT(v) {
2399 if (!v->IsNormalAircraft()) continue;
2400 Station *st = GetTargetAirportIfValid(v);
2401 if (st == NULL && v->state != FLYING) {
2402 v->state = FLYING;
2403 UpdateAircraftCache(v);
2404 AircraftNextAirportPos_and_Order(v);
2405 /* get aircraft back on running altitude */
2406 if ((v->vehstatus & VS_CRASHED) == 0) {
2407 GetAircraftFlightLevelBounds(v, &v->z_pos, NULL);
2408 SetAircraftPosition(v, v->x_pos, v->y_pos, GetAircraftFlightLevel(v));
2409 }
2410 }
2411 }
2412 }
2413
2414 /* Move the animation frame to the same location (m7) for all objects. */
2415 if (IsSavegameVersionBefore(147)) {
2416 for (TileIndex t = 0; t < map_size; t++) {
2417 switch (GetTileType(t)) {
2418 case MP_HOUSE:
2419 if (GetHouseType(t) >= NEW_HOUSE_OFFSET) {
2420 uint per_proc = _me[t].m7;
2421 _me[t].m7 = GB(_me[t].m6, 2, 6) | (GB(_m[t].m3, 5, 1) << 6);
2422 SB(_m[t].m3, 5, 1, 0);
2423 SB(_me[t].m6, 2, 6, min(per_proc, 63));
2424 }
2425 break;
2426
2427 case MP_INDUSTRY: {
2428 uint rand = _me[t].m7;
2429 _me[t].m7 = _m[t].m3;
2430 _m[t].m3 = rand;
2431 break;
2432 }
2433
2434 case MP_OBJECT:
2435 _me[t].m7 = _m[t].m3;
2436 _m[t].m3 = 0;
2437 break;
2438
2439 default:
2440 /* For stations/airports it's already at m7 */
2441 break;
2442 }
2443 }
2444 }
2445
2446 /* Add (random) colour to all objects. */
2447 if (IsSavegameVersionBefore(148)) {
2448 Object *o;
2449 FOR_ALL_OBJECTS(o) {
2450 Owner owner = GetTileOwner(o->location.tile);
2451 o->colour = (owner == OWNER_NONE) ? Random() & 0xF : Company::Get(owner)->livery->colour1;
2452 }
2453 }
2454
2455 if (IsSavegameVersionBefore(149)) {
2456 for (TileIndex t = 0; t < map_size; t++) {
2457 if (!IsTileType(t, MP_STATION)) continue;
2458 if (!IsBuoy(t) && !IsOilRig(t) && !(IsDock(t) && IsTileFlat(t))) {
2459 SetWaterClass(t, WATER_CLASS_INVALID);
2460 }
2461 }
2462
2463 /* Waypoints with custom name may have a non-unique town_cn,
2464 * renumber those. First set all affected waypoints to the
2465 * highest possible number to get them numbered in the
2466 * order they have in the pool. */
2467 Waypoint *wp;
2468 FOR_ALL_WAYPOINTS(wp) {
2469 if (wp->name != NULL) wp->town_cn = UINT16_MAX;
2470 }
2471
2472 FOR_ALL_WAYPOINTS(wp) {
2473 if (wp->name != NULL) MakeDefaultName(wp);
2474 }
2475 }
2476
2477 if (IsSavegameVersionBefore(152)) {
2478 _industry_builder.Reset(); // Initialize industry build data.
2479
2480 /* The moment vehicles go from hidden to visible changed. This means
2481 * that vehicles don't always get visible anymore causing things to
2482 * get messed up just after loading the savegame. This fixes that. */
2483 Vehicle *v;
2484 FOR_ALL_VEHICLES(v) {
2485 /* Not all vehicle types can be inside a tunnel. Furthermore,
2486 * testing IsTunnelTile() for invalid tiles causes a crash. */
2487 if (!v->IsGroundVehicle()) continue;
2488
2489 /* Is the vehicle in a tunnel? */
2490 if (!IsTunnelTile(v->tile)) continue;
2491
2492 /* Is the vehicle actually at a tunnel entrance/exit? */
2493 TileIndex vtile = TileVirtXY(v->x_pos, v->y_pos);
2494 if (!IsTunnelTile(vtile)) continue;
2495
2496 /* Are we actually in this tunnel? Or maybe a lower tunnel? */
2497 if (GetSlopePixelZ(v->x_pos, v->y_pos) != v->z_pos) continue;
2498
2499 /* What way are we going? */
2500 const DiagDirection dir = GetTunnelBridgeDirection(vtile);
2501 const DiagDirection vdir = DirToDiagDir(v->direction);
2502
2503 /* Have we passed the visibility "switch" state already? */
2504 byte pos = (DiagDirToAxis(vdir) == AXIS_X ? v->x_pos : v->y_pos) & TILE_UNIT_MASK;
2505 byte frame = (vdir == DIAGDIR_NE || vdir == DIAGDIR_NW) ? TILE_SIZE - 1 - pos : pos;
2506 extern const byte _tunnel_visibility_frame[DIAGDIR_END];
2507
2508 /* Should the vehicle be hidden or not? */
2509 bool hidden;
2510 if (dir == vdir) { // Entering tunnel
2511 hidden = frame >= _tunnel_visibility_frame[dir];
2512 v->tile = vtile;
2513 } else if (dir == ReverseDiagDir(vdir)) { // Leaving tunnel
2514 hidden = frame < TILE_SIZE - _tunnel_visibility_frame[dir];
2515 /* v->tile changes at the moment when the vehicle leaves the tunnel. */
2516 v->tile = hidden ? GetOtherTunnelBridgeEnd(vtile) : vtile;
2517 } else {
2518 /* We could get here in two cases:
2519 * - for road vehicles, it is reversing at the end of the tunnel
2520 * - it is crashed in the tunnel entry (both train or RV destroyed by UFO)
2521 * Whatever case it is, do not change anything and use the old values.
2522 * Especially changing RV's state would break its reversing in the middle. */
2523 continue;
2524 }
2525
2526 if (hidden) {
2527 v->vehstatus |= VS_HIDDEN;
2528
2529 switch (v->type) {
2530 case VEH_TRAIN: Train::From(v)->track = TRACK_BIT_WORMHOLE; break;
2531 case VEH_ROAD: RoadVehicle::From(v)->state = RVSB_WORMHOLE; break;
2532 default: NOT_REACHED();
2533 }
2534 } else {
2535 v->vehstatus &= ~VS_HIDDEN;
2536
2537 switch (v->type) {
2538 case VEH_TRAIN: Train::From(v)->track = DiagDirToDiagTrackBits(vdir); break;
2539 case VEH_ROAD: RoadVehicle::From(v)->state = DiagDirToDiagTrackdir(vdir); RoadVehicle::From(v)->frame = frame; break;
2540 default: NOT_REACHED();
2541 }
2542 }
2543 }
2544 }
2545
2546 if (IsSavegameVersionBefore(153)) {
2547 RoadVehicle *rv;
2548 FOR_ALL_ROADVEHICLES(rv) {
2549 if (rv->state == RVSB_IN_DEPOT || rv->state == RVSB_WORMHOLE) continue;
2550
2551 bool loading = rv->current_order.IsType(OT_LOADING) || rv->current_order.IsType(OT_LEAVESTATION);
2552 if (HasBit(rv->state, RVS_IN_ROAD_STOP)) {
2553 extern const byte _road_stop_stop_frame[];
2554 SB(rv->state, RVS_ENTERED_STOP, 1, loading || rv->frame > _road_stop_stop_frame[rv->state - RVSB_IN_ROAD_STOP + (_settings_game.vehicle.road_side << RVS_DRIVE_SIDE)]);
2555 } else if (HasBit(rv->state, RVS_IN_DT_ROAD_STOP)) {
2556 SB(rv->state, RVS_ENTERED_STOP, 1, loading || rv->frame > RVC_DRIVE_THROUGH_STOP_FRAME);
2557 }
2558 }
2559 }
2560
2561 if (IsSavegameVersionBefore(156)) {
2562 /* The train's pathfinder lost flag got moved. */
2563 Train *t;
2564 FOR_ALL_TRAINS(t) {
2565 if (!HasBit(t->flags, 5)) continue;
2566
2567 ClrBit(t->flags, 5);
2568 SetBit(t->vehicle_flags, VF_PATHFINDER_LOST);
2569 }
2570
2571 /* Introduced terraform/clear limits. */
2572 Company *c;
2573 FOR_ALL_COMPANIES(c) {
2574 c->terraform_limit = _settings_game.construction.terraform_frame_burst << 16;
2575 c->clear_limit = _settings_game.construction.clear_frame_burst << 16;
2576 }
2577 }
2578
2579 if (IsSavegameVersionBefore(158)) {
2580 Vehicle *v;
2581 FOR_ALL_VEHICLES(v) {
2582 switch (v->type) {
2583 case VEH_TRAIN: {
2584 Train *t = Train::From(v);
2585
2586 /* Clear old GOINGUP / GOINGDOWN flags.
2587 * It was changed in savegame version 139, but savegame
2588 * version 158 doesn't use these bits, so it doesn't hurt
2589 * to clear them unconditionally. */
2590 ClrBit(t->flags, 1);
2591 ClrBit(t->flags, 2);
2592
2593 /* Clear both bits first. */
2594 ClrBit(t->gv_flags, GVF_GOINGUP_BIT);
2595 ClrBit(t->gv_flags, GVF_GOINGDOWN_BIT);
2596
2597 /* Crashed vehicles can't be going up/down. */
2598 if (t->vehstatus & VS_CRASHED) break;
2599
2600 /* Only X/Y tracks can be sloped. */
2601 if (t->track != TRACK_BIT_X && t->track != TRACK_BIT_Y) break;
2602
2603 t->gv_flags |= FixVehicleInclination(t, t->direction);
2604 break;
2605 }
2606 case VEH_ROAD: {
2607 RoadVehicle *rv = RoadVehicle::From(v);
2608 ClrBit(rv->gv_flags, GVF_GOINGUP_BIT);
2609 ClrBit(rv->gv_flags, GVF_GOINGDOWN_BIT);
2610
2611 /* Crashed vehicles can't be going up/down. */
2612 if (rv->vehstatus & VS_CRASHED) break;
2613
2614 if (rv->state == RVSB_IN_DEPOT || rv->state == RVSB_WORMHOLE) break;
2615
2616 TrackStatus ts = GetTileTrackStatus(rv->tile, TRANSPORT_ROAD, rv->compatible_roadtypes);
2617 TrackBits trackbits = TrackStatusToTrackBits(ts);
2618
2619 /* Only X/Y tracks can be sloped. */
2620 if (trackbits != TRACK_BIT_X && trackbits != TRACK_BIT_Y) break;
2621
2622 Direction dir = rv->direction;
2623
2624 /* Test if we are reversing. */
2625 Axis a = trackbits == TRACK_BIT_X ? AXIS_X : AXIS_Y;
2626 if (AxisToDirection(a) != dir &&
2627 AxisToDirection(a) != ReverseDir(dir)) {
2628 /* When reversing, the road vehicle is on the edge of the tile,
2629 * so it can be safely compared to the middle of the tile. */
2630 dir = INVALID_DIR;
2631 }
2632
2633 rv->gv_flags |= FixVehicleInclination(rv, dir);
2634 break;
2635 }
2636 case VEH_SHIP:
2637 break;
2638
2639 default:
2640 continue;
2641 }
2642
2643 if (IsBridgeTile(v->tile) && TileVirtXY(v->x_pos, v->y_pos) == v->tile) {
2644 /* In old versions, z_pos was 1 unit lower on bridge heads.
2645 * However, this invalid state could be converted to new savegames
2646 * by loading and saving the game in a new version. */
2647 v->z_pos = GetSlopePixelZ(v->x_pos, v->y_pos);
2648 DiagDirection dir = GetTunnelBridgeDirection(v->tile);
2649 if (v->type == VEH_TRAIN && !(v->vehstatus & VS_CRASHED) &&
2650 v->direction != DiagDirToDir(dir)) {
2651 /* If the train has left the bridge, it shouldn't have
2652 * track == TRACK_BIT_WORMHOLE - this could happen
2653 * when the train was reversed while on the last "tick"
2654 * on the ramp before leaving the ramp to the bridge. */
2655 Train::From(v)->track = DiagDirToDiagTrackBits(dir);
2656 }
2657 }
2658
2659 /* If the vehicle is really above v->tile (not in a wormhole),
2660 * it should have set v->z_pos correctly. */
2661 assert(v->tile != TileVirtXY(v->x_pos, v->y_pos) || v->z_pos == GetSlopePixelZ(v->x_pos, v->y_pos));
2662 }
2663
2664 /* Fill Vehicle::cur_real_order_index */
2665 FOR_ALL_VEHICLES(v) {
2666 if (!v->IsPrimaryVehicle()) continue;
2667
2668 /* Older versions are less strict with indices being in range and fix them on the fly */
2669 if (v->cur_implicit_order_index >= v->GetNumOrders()) v->cur_implicit_order_index = 0;
2670
2671 v->cur_real_order_index = v->cur_implicit_order_index;
2672 v->UpdateRealOrderIndex();
2673 }
2674 }
2675
2676 if (IsSavegameVersionBefore(159)) {
2677 /* If the savegame is old (before version 100), then the value of 255
2678 * for these settings did not mean "disabled". As such everything
2679 * before then did reverse.
2680 * To simplify stuff we disable all turning around or we do not
2681 * disable anything at all. So, if some reversing was disabled we
2682 * will keep reversing disabled, otherwise it'll be turned on. */
2683 _settings_game.pf.reverse_at_signals = IsSavegameVersionBefore(100) || (_settings_game.pf.wait_oneway_signal != 255 && _settings_game.pf.wait_twoway_signal != 255 && _settings_game.pf.wait_for_pbs_path != 255);
2684
2685 Train *t;
2686 FOR_ALL_TRAINS(t) {
2687 _settings_game.vehicle.max_train_length = max<uint8>(_settings_game.vehicle.max_train_length, CeilDiv(t->gcache.cached_total_length, TILE_SIZE));
2688 }
2689 }
2690
2691 if (IsSavegameVersionBefore(160)) {
2692 /* Setting difficulty industry_density other than zero get bumped to +1
2693 * since a new option (minimal at position 1) has been added */
2694 if (_settings_game.difficulty.industry_density > 0) {
2695 _settings_game.difficulty.industry_density++;
2696 }
2697 }
2698
2699 if (IsSavegameVersionBefore(161)) {
2700 /* Before savegame version 161, persistent storages were not stored in a pool. */
2701
2702 if (!IsSavegameVersionBefore(76)) {
2703 Industry *ind;
2704 FOR_ALL_INDUSTRIES(ind) {
2705 assert(ind->psa != NULL);
2706
2707 /* Check if the old storage was empty. */
2708 bool is_empty = true;
2709 for (uint i = 0; i < sizeof(ind->psa->storage); i++) {
2710 if (ind->psa->GetValue(i) != 0) {
2711 is_empty = false;
2712 break;
2713 }
2714 }
2715
2716 if (!is_empty) {
2717 ind->psa->grfid = _industry_mngr.GetGRFID(ind->type);
2718 } else {
2719 delete ind->psa;
2720 ind->psa = NULL;
2721 }
2722 }
2723 }
2724
2725 if (!IsSavegameVersionBefore(145)) {
2726 Station *st;
2727 FOR_ALL_STATIONS(st) {
2728 if (!(st->facilities & FACIL_AIRPORT)) continue;
2729 assert(st->airport.psa != NULL);
2730
2731 /* Check if the old storage was empty. */
2732 bool is_empty = true;
2733 for (uint i = 0; i < sizeof(st->airport.psa->storage); i++) {
2734 if (st->airport.psa->GetValue(i) != 0) {
2735 is_empty = false;
2736 break;
2737 }
2738 }
2739
2740 if (!is_empty) {
2741 st->airport.psa->grfid = _airport_mngr.GetGRFID(st->airport.type);
2742 } else {
2743 delete st->airport.psa;
2744 st->airport.psa = NULL;
2745
2746 }
2747 }
2748 }
2749 }
2750
2751 /* This triggers only when old snow_lines were copied into the snow_line_height. */
2752 if (IsSavegameVersionBefore(164) && _settings_game.game_creation.snow_line_height >= MIN_SNOWLINE_HEIGHT * TILE_HEIGHT) {
2753 _settings_game.game_creation.snow_line_height /= TILE_HEIGHT;
2754 }
2755
2756 if (IsSavegameVersionBefore(164) && !IsSavegameVersionBefore(32)) {
2757 /* We store 4 fences in the field tiles instead of only SE and SW. */
2758 for (TileIndex t = 0; t < map_size; t++) {
2759 if (!IsTileType(t, MP_CLEAR) && !IsTileType(t, MP_TREES)) continue;
2760 if (IsTileType(t, MP_CLEAR) && IsClearGround(t, CLEAR_FIELDS)) continue;
2761 uint fence = GB(_m[t].m4, 5, 3);
2762 if (fence != 0 && IsTileType(TILE_ADDXY(t, 1, 0), MP_CLEAR) && IsClearGround(TILE_ADDXY(t, 1, 0), CLEAR_FIELDS)) {
2763 SetFence(TILE_ADDXY(t, 1, 0), DIAGDIR_NE, fence);
2764 }
2765 fence = GB(_m[t].m4, 2, 3);
2766 if (fence != 0 && IsTileType(TILE_ADDXY(t, 0, 1), MP_CLEAR) && IsClearGround(TILE_ADDXY(t, 0, 1), CLEAR_FIELDS)) {
2767 SetFence(TILE_ADDXY(t, 0, 1), DIAGDIR_NW, fence);
2768 }
2769 SB(_m[t].m4, 2, 3, 0);
2770 SB(_m[t].m4, 5, 3, 0);
2771 }
2772 }
2773
2774 /* The center of train vehicles was changed, fix up spacing. */
2775 if (IsSavegameVersionBefore(164)) FixupTrainLengths();
2776
2777 if (IsSavegameVersionBefore(165)) {
2778 Town *t;
2779
2780 FOR_ALL_TOWNS(t) {
2781 /* Set the default cargo requirement for town growth */
2782 switch (_settings_game.game_creation.landscape) {
2783 case LT_ARCTIC:
2784 if (FindFirstCargoWithTownEffect(TE_FOOD) != NULL) t->goal[TE_FOOD] = TOWN_GROWTH_WINTER;
2785 break;
2786
2787 case LT_TROPIC:
2788 if (FindFirstCargoWithTownEffect(TE_FOOD) != NULL) t->goal[TE_FOOD] = TOWN_GROWTH_DESERT;
2789 if (FindFirstCargoWithTownEffect(TE_WATER) != NULL) t->goal[TE_WATER] = TOWN_GROWTH_DESERT;
2790 break;
2791 }
2792 }
2793 }
2794
2795 if (IsSavegameVersionBefore(165)) {
2796 /* Adjust zoom level to account for new levels */
2797 _saved_scrollpos_zoom = _saved_scrollpos_zoom + ZOOM_LVL_SHIFT;
2798 _saved_scrollpos_x *= ZOOM_LVL_BASE;
2799 _saved_scrollpos_y *= ZOOM_LVL_BASE;
2800 }
2801
2802 /* When any NewGRF has been changed the availability of some vehicles might
2803 * have been changed too. e->company_avail must be set to 0 in that case
2804 * which is done by StartupEngines(). */
2805 if (gcf_res != GLC_ALL_GOOD) StartupEngines();
2806
2807 if (IsSavegameVersionBefore(166)) {
2808 /* Update cargo acceptance map of towns. */
2809 for (TileIndex t = 0; t < map_size; t++) {
2810 if (!IsTileType(t, MP_HOUSE)) continue;
2811 Town::Get(GetTownIndex(t))->cargo_accepted.Add(t);
2812 }
2813
2814 Town *town;
2815 FOR_ALL_TOWNS(town) {
2816 UpdateTownCargoes(town);
2817 }
2818 }
2819
2820 /* The road owner of standard road stops was not properly accounted for. */
2821 if (IsSavegameVersionBefore(172)) {
2822 for (TileIndex t = 0; t < map_size; t++) {
2823 if (!IsStandardRoadStopTile(t)) continue;
2824 Owner o = GetTileOwner(t);
2825 SetRoadOwner(t, ROADTYPE_ROAD, o);
2826 SetRoadOwner(t, ROADTYPE_TRAM, o);
2827 }
2828 }
2829
2830 if (IsSavegameVersionBefore(175)) {
2831 /* Introduced tree planting limit. */
2832 Company *c;
2833 FOR_ALL_COMPANIES(c) c->tree_limit = _settings_game.construction.tree_frame_burst << 16;
2834 }
2835
2836 if (IsSavegameVersionBefore(177)) {
2837 /* Fix too high inflation rates */
2838 if (_economy.inflation_prices > MAX_INFLATION) _economy.inflation_prices = MAX_INFLATION;
2839 if (_economy.inflation_payment > MAX_INFLATION) _economy.inflation_payment = MAX_INFLATION;
2840
2841 /* We have to convert the quarters of bankruptcy into months of bankruptcy */
2842 FOR_ALL_COMPANIES(c) {
2843 c->months_of_bankruptcy = 3 * c->months_of_bankruptcy;
2844 }
2845 }
2846
2847 if (IsSavegameVersionBefore(178)) {
2848 extern uint8 _old_diff_level;
2849 /* Initialise script settings profile */
2850 _settings_game.script.settings_profile = IsInsideMM(_old_diff_level, SP_BEGIN, SP_END) ? _old_diff_level : (uint)SP_MEDIUM;
2851 }
2852
2853 if (IsSavegameVersionBefore(182)) {
2854 Aircraft *v;
2855 /* Aircraft acceleration variable was bonkers */
2856 FOR_ALL_AIRCRAFT(v) {
2857 if (v->subtype <= AIR_AIRCRAFT) {
2858 const AircraftVehicleInfo *avi = AircraftVehInfo(v->engine_type);
2859 v->acceleration = avi->acceleration;
2860 }
2861 }
2862
2863 /* Blocked tiles could be reserved due to a bug, which causes
2864 * other places to assert upon e.g. station reconstruction. */
2865 for (TileIndex t = 0; t < map_size; t++) {
2866 if (HasStationTileRail(t) && IsStationTileBlocked(t)) {
2867 SetRailStationReservation(t, false);
2868 }
2869 }
2870 }
2871
2872 if (IsSavegameVersionBefore(184)) {
2873 /* The global units configuration is split up in multiple configurations. */
2874 extern uint8 _old_units;
2875 _settings_game.locale.units_velocity = Clamp(_old_units, 0, 2);
2876 _settings_game.locale.units_power = Clamp(_old_units, 0, 2);
2877 _settings_game.locale.units_weight = Clamp(_old_units, 1, 2);
2878 _settings_game.locale.units_volume = Clamp(_old_units, 1, 2);
2879 _settings_game.locale.units_force = 2;
2880 _settings_game.locale.units_height = Clamp(_old_units, 0, 2);
2881 }
2882
2883 if (IsSavegameVersionBefore(186)) {
2884 /* Move ObjectType from map to pool */
2885 for (TileIndex t = 0; t < map_size; t++) {
2886 if (IsTileType(t, MP_OBJECT)) {
2887 Object *o = Object::Get(_m[t].m2);
2888 o->type = _m[t].m5;
2889 _m[t].m5 = 0; // zero upper bits of (now bigger) ObjectID
2890 }
2891 }
2892 }
2893
2894 if (IsSavegameVersionBefore(188)) {
2895 /* Fix articulated road vehicles.
2896 * Some curves were shorter than other curves.
2897 * Now they have the same length, but that means that trailing articulated parts will
2898 * take longer to go through the curve than the parts in front which already left the courve.
2899 * So, make articulated parts catch up. */
2900 RoadVehicle *v;
2901 bool roadside = _settings_game.vehicle.road_side == 1;
2902 SmallVector<uint, 16> skip_frames;
2903 FOR_ALL_ROADVEHICLES(v) {
2904 if (!v->IsFrontEngine()) continue;
2905 skip_frames.Clear();
2906 TileIndex prev_tile = v->tile;
2907 uint prev_tile_skip = 0;
2908 uint cur_skip = 0;
2909 for (RoadVehicle *u = v; u != NULL; u = u->Next()) {
2910 if (u->tile != prev_tile) {
2911 prev_tile_skip = cur_skip;
2912 prev_tile = u->tile;
2913 } else {
2914 cur_skip = prev_tile_skip;
2915 }
2916
2917 uint *this_skip = skip_frames.Append();
2918 *this_skip = prev_tile_skip;
2919
2920 /* The following 3 curves now take longer than before */
2921 switch (u->state) {
2922 case 2:
2923 cur_skip++;
2924 if (u->frame <= (roadside ? 9 : 5)) *this_skip = cur_skip;
2925 break;
2926
2927 case 4:
2928 cur_skip++;
2929 if (u->frame <= (roadside ? 5 : 9)) *this_skip = cur_skip;
2930 break;
2931
2932 case 5:
2933 cur_skip++;
2934 if (u->frame <= (roadside ? 4 : 2)) *this_skip = cur_skip;
2935 break;
2936
2937 default:
2938 break;
2939 }
2940 }
2941 while (cur_skip > skip_frames[0]) {
2942 RoadVehicle *u = v;
2943 RoadVehicle *prev = NULL;
2944 for (uint *it = skip_frames.Begin(); it != skip_frames.End(); ++it, prev = u, u = u->Next()) {
2945 extern bool IndividualRoadVehicleController(RoadVehicle *v, const RoadVehicle *prev);
2946 if (*it >= cur_skip) IndividualRoadVehicleController(u, prev);
2947 }
2948 cur_skip--;
2949 }
2950 }
2951 }
2952
2953 /*
2954 * Only keep order-backups for network clients.
2955 * If we are a network server or not networking, then we just loaded a previously
2956 * saved-by-server savegame. There are no clients with a backup, so clear it.
2957 * Furthermore before savegame version 192 the actual content was always corrupt.
2958 */
2959 if (!_networking || _network_server || IsSavegameVersionBefore(192)) {
2960 /* Note: We cannot use CleanPool since that skips part of the destructor
2961 * and then leaks un-reachable Orders in the order pool. */
2962 OrderBackup *ob;
2963 FOR_ALL_ORDER_BACKUPS(ob) {
2964 delete ob;
2965 }
2966 }
2967
2968
2969 /* Station acceptance is some kind of cache */
2970 if (IsSavegameVersionBefore(127)) {
2971 Station *st;
2972 FOR_ALL_STATIONS(st) UpdateStationAcceptance(st, false);
2973 }
2974
2975 /* Road stops is 'only' updating some caches */
2976 AfterLoadRoadStops();
2977 AfterLoadLabelMaps();
2978 AfterLoadCompanyStats();
2979 AfterLoadStoryBook();
2980
2981 GamelogPrintDebug(1);
2982
2983 InitializeWindowsAndCaches();
2984 /* Restore the signals */
2985 ResetSignalHandlers();
2986
2987 AfterLoadLinkGraphs();
2988 return true;
2989 }
2990
2999 void ReloadNewGRFData()
3000 {
3001 /* reload grf data */
3002 GfxLoadSprites();
3003 LoadStringWidthTable();
3004 RecomputePrices();
3005 /* reload vehicles */
3006 ResetVehicleHash();
3007 AfterLoadVehicles(false);
3008 StartupEngines();
3009 GroupStatistics::UpdateAfterLoad();
3010 /* update station graphics */
3011 AfterLoadStations();
3012 /* Update company statistics. */
3013 AfterLoadCompanyStats();
3014 /* Check and update house and town values */
3015 UpdateHousesAndTowns();
3016 /* Delete news referring to no longer existing entities */
3017 DeleteInvalidEngineNews();
3018 /* Update livery selection windows */
3019 for (CompanyID i = COMPANY_FIRST; i < MAX_COMPANIES; i++) InvalidateWindowData(WC_COMPANY_COLOUR, i);
3020 /* Update company infrastructure counts. */
3021 InvalidateWindowClassesData(WC_COMPANY_INFRASTRUCTURE);
3022 /* redraw the whole screen */
3023 MarkWholeScreenDirty();
3024 CheckTrainsLengths();
3025 }