/* $Id$ */ #include "stdafx.h" #include "openttd.h" #include "table/strings.h" #include "functions.h" #include "map.h" #include "town.h" #include "industry.h" #include "station.h" #include "economy.h" #include "player.h" #include "engine.h" #include "vehicle.h" #include "signs.h" #include "debug.h" #include "depot.h" #include "network.h" #include "ai/ai.h" enum { HEADER_SIZE = 49, BUFFER_SIZE = 4096, OLD_MAP_SIZE = 256 * 256 }; typedef struct LoadgameState { FILE *file; uint chunk_size; bool decoding; byte decode_char; uint buffer_count; uint buffer_cur; byte buffer[BUFFER_SIZE]; uint total_read; bool failed; } LoadgameState; typedef bool OldChunkProc(LoadgameState *ls, int num); typedef struct OldChunks { uint32 type; //! Type of field uint32 amount; //! Amount of fields void *ptr; //! Pointer where to save the data (may only be set if offset is 0) uint offset; //! Offset from basepointer (may only be set if ptr is NULL) OldChunkProc *proc; //! Pointer to function that is called with OC_CHUNK } OldChunks; /* OldChunk-Type */ enum { OC_END = 0, OC_NULL = 1 << 0, OC_CHUNK = 1 << 1, OC_ASSERT = 1 << 2, OC_VAR_I8 = 1 << 9, OC_VAR_U8 = 1 << 10, OC_VAR_I16 = 1 << 11, OC_VAR_U16 = 1 << 12, OC_VAR_I32 = 1 << 13, OC_VAR_U32 = 1 << 14, OC_VAR_I64 = 1 << 15, OC_FILE_I8 = 1 << 17, OC_FILE_U8 = 1 << 18, OC_FILE_I16 = 1 << 19, OC_FILE_U16 = 1 << 20, OC_FILE_I32 = 1 << 21, OC_FILE_U32 = 1 << 22, OC_INT8 = OC_VAR_I8 | OC_FILE_I8, OC_UINT8 = OC_VAR_U8 | OC_FILE_U8, OC_INT16 = OC_VAR_I16 | OC_FILE_I16, OC_UINT16 = OC_VAR_U16 | OC_FILE_U16, OC_INT32 = OC_VAR_I32 | OC_FILE_I32, OC_UINT32 = OC_VAR_U32 | OC_FILE_U32, OC_TILE = OC_VAR_U32 | OC_FILE_U16 }; /* If it fails, check lines above.. */ assert_compile(sizeof(TileIndex) == 4); static uint32 _bump_assert_value; static bool _read_ttdpatch_flags; /** * * Reads a byte from a file (do not call yourself, use ReadByte()) * */ static byte ReadByteFromFile(LoadgameState *ls) { /* To avoid slow reads, we read BUFFER_SIZE of bytes per time and just return a byte per time */ if (ls->buffer_cur >= ls->buffer_count) { /* Read some new bytes from the file */ int count = fread(ls->buffer, 1, BUFFER_SIZE, ls->file); /* We tried to read, but there is nothing in the file anymore.. */ if (count == 0) { DEBUG(oldloader, 1)("[OldLoader] Read past end of file, loading failed"); ls->failed = true; } ls->buffer_count = count; ls->buffer_cur = 0; } return ls->buffer[ls->buffer_cur++]; } /** * * Reads a byte from the buffer and decompress if needed * */ static byte ReadByte(LoadgameState *ls) { /* Old savegames have a nice compression algorithm (RLE) which means that we have a chunk, which starts with a length byte. If that byte is negative, we have to repeat the next byte that many times (+1). Else, we need to read that amount of bytes. Works pretty good if you have many zero's behind eachother */ if (ls->chunk_size == 0) { /* Read new chunk */ int8 new_byte = ReadByteFromFile(ls); if (new_byte < 0) { /* Repeat next char for new_byte times */ ls->decoding = true; ls->decode_char = ReadByteFromFile(ls); ls->chunk_size = -new_byte + 1; } else { ls->decoding = false; ls->chunk_size = new_byte + 1; } } ls->total_read++; ls->chunk_size--; return ls->decoding ? ls->decode_char : ReadByteFromFile(ls); } /** * * Loads a chunk from the old savegame * */ static bool LoadChunk(LoadgameState *ls, void *base, const OldChunks *chunks) { const OldChunks *chunk = chunks; byte *ptr; byte *base_ptr = base; uint i; while (chunk->type != OC_END) { ptr = chunk->ptr; for (i = 0; i < chunk->amount; i++) { if (ls->failed) return false; /* Handle simple types */ if ((chunk->type & 0xFF) != 0) { switch (chunk->type & 0xFF) { case OC_NULL: /* Just read the byte and forget about it */ ReadByte(ls); break; case OC_CHUNK: /* Call function, with 'i' as parameter to tell which item we are going to read */ if (!chunk->proc(ls, i)) return false; break; case OC_ASSERT: DEBUG(oldloader, 4)("[OldLoader] Assert point: %x / %x", ls->total_read, chunk->offset + _bump_assert_value); if (ls->total_read != chunk->offset + _bump_assert_value) ls->failed = true; break; } } else { uint32 res = 0; /* Reading from the file: bit 16 to 23 have the FILE */ switch (GB(chunk->type, 16, 8) << 16) { case OC_FILE_I8: res = ReadByte(ls); res = (int8)res; break; case OC_FILE_U8: res = ReadByte(ls); break; case OC_FILE_U16: res = ReadByte(ls); res += ReadByte(ls) << 8; break; case OC_FILE_I16: res = ReadByte(ls); res += ReadByte(ls) << 8; res = (int16)res; break; case OC_FILE_U32: res = ReadByte(ls); res += ReadByte(ls) << 8; res += ReadByte(ls) << 16; res += ReadByte(ls) << 24; break; case OC_FILE_I32: res = ReadByte(ls); res += ReadByte(ls) << 8; res += ReadByte(ls) << 16; res += ReadByte(ls) << 24; res = (int32)res; break; } /* Sanity check */ assert(base_ptr != NULL || chunk->ptr != NULL); /* Writing to the var: bit 8 till 15 have the VAR */ switch (GB(chunk->type, 8, 8) << 8) { case OC_VAR_I8: /* Write the data */ if (chunk->ptr != NULL) { *(int8 *)ptr = res & 0xFF; ptr++; } else *(int8 *)(base_ptr + chunk->offset) = res & 0xFF; break; case OC_VAR_U8: /* Write the data */ if (chunk->ptr != NULL) { *(uint8 *)ptr = res & 0xFF; ptr++; } else *(uint8 *)(base_ptr + chunk->offset) = res & 0xFF; break; case OC_VAR_U16: /* Write the data */ if (chunk->ptr != NULL) { *(uint16 *)ptr = res & 0xFFFF; ptr += 2; } else *(uint16 *)(base_ptr + chunk->offset) = res & 0xFFFF; break; case OC_VAR_I16: /* Write the data */ if (chunk->ptr != NULL) { *(int16 *)ptr = res & 0xFFFF; ptr += 2; } else *(int16 *)(base_ptr + chunk->offset) = res & 0xFFFF; break; case OC_VAR_U32: /* Write the data */ if (chunk->ptr != NULL) { *(uint32 *)ptr = res; ptr += 4; } else *(uint32 *)(base_ptr + chunk->offset) = res; break; case OC_VAR_I32: /* Write the data */ if (chunk->ptr != NULL) { *(int32 *)ptr = res; ptr += 4; } else *(int32 *)(base_ptr + chunk->offset) = res; break; case OC_VAR_I64: /* Write the data */ if (chunk->ptr != NULL) { *(int64 *)ptr = res; ptr += 8; } else *(int64 *)(base_ptr + chunk->offset) = res; break; } } } chunk++; } return true; } /** * * Initialize some data before reading * */ static void InitLoading(LoadgameState *ls) { ls->chunk_size = 0; ls->total_read = 0; ls->failed = false; ls->decoding = false; ls->decode_char = 0; ls->buffer_cur = 0; ls->buffer_count = 0; memset(ls->buffer, 0, BUFFER_SIZE); _bump_assert_value = 0; _read_ttdpatch_flags = false; } /* * Begin -- Stuff to fix the savegames to be OpenTTD compatible */ extern uint32 GetOldTownName(uint32 townnameparts, byte old_town_name_type); static void FixOldTowns(void) { Town *town; /* Convert town-names if needed */ FOR_ALL_TOWNS(town) { if (town->xy == 0) continue; if (IS_INT_INSIDE(town->townnametype, 0x20C1, 0x20C3)) { town->townnametype = SPECSTR_TOWNNAME_ENGLISH + _opt.town_name; town->townnameparts = GetOldTownName(town->townnameparts, _opt.town_name); } } } static void FixOldStations(void) { Station *st; FOR_ALL_STATIONS(st) { /* Check if we need to swap width and height for the station */ if (st->train_tile != 0 && _m[st->train_tile].m5 & 1) { swap_byte(&st->trainst_w, &st->trainst_h); } /* Check if there is a bus or truck station, and convert to new format */ if (st->bus_tile_obsolete != 0) { st->bus_stops = AllocateRoadStop(); st->bus_stops->xy = st->bus_tile_obsolete; st->bus_stops->used = true; st->bus_stops->status = 3; st->bus_stops->station = st->index; st->bus_stops->next = NULL; st->bus_stops->prev = NULL; st->bus_stops->slot[0] = st->bus_stops->slot[1] = INVALID_SLOT; } if (st->lorry_tile_obsolete != 0) { st->truck_stops = AllocateRoadStop(); st->truck_stops->xy = st->lorry_tile_obsolete; st->truck_stops->used = true; st->truck_stops->status = 3; st->truck_stops->station = st->index; st->truck_stops->next = NULL; st->truck_stops->prev = NULL; st->truck_stops->slot[0] = st->truck_stops->slot[1] = INVALID_SLOT; } } } static void FixOldVehicles(void) { /* Check for shared orders, and link them correctly */ { Vehicle *v; FOR_ALL_VEHICLES(v) { Vehicle *u; if (v->type == 0) continue; FOR_ALL_VEHICLES_FROM(u, v->index + 1) { if (u->type == 0) continue; /* If a vehicle has the same orders, add the link to eachother in both vehicles */ if (v->orders == u->orders) { v->next_shared = u; u->prev_shared = v; break; } } } } } /* * End -- Stuff to fix the savegames to be OpenTTD compatible */ /* Help: * - OCL_SVAR: load 'type' to offset 'offset' in a struct of type 'base', which must also * be given via base in LoadChunk() as real pointer * - OCL_VAR: load 'type' to a global var * - OCL_END: every struct must end with this * - OCL_NULL: read 'amount' of bytes and send them to /dev/null or something * - OCL_CHUNK: load an other proc to load a part of the savegame, 'amount' times * - OCL_ASSERT: to check if we are really at the place we expect to be.. because old savegames are too binary to be sure ;) */ #define OCL_SVAR(type, base, offset) { type, 1, NULL, offsetof(base, offset), NULL } #define OCL_VAR(type, amount, pointer) { type, amount, pointer, 0, NULL } #define OCL_END() { OC_END, 0, NULL, 0, NULL } #define OCL_NULL(amount) { OC_NULL, amount, NULL, 0, NULL } #define OCL_CHUNK(amount, proc) { OC_CHUNK, amount, NULL, 0, proc } #define OCL_ASSERT(size) { OC_ASSERT, 1, NULL, size, NULL } /* The savegames has some hard-coded pointers, because it always enters the same piece of memory.. we don't.. so we need to remap ;) Old Towns are 94 bytes big Old Orders are 2 bytes big */ #define REMAP_TOWN_IDX(x) ((x) - (0x0459154 - 0x0458EF0)) / 94 #define REMAP_ORDER_IDX(x) ((x) - (0x045AB08 - 0x0458EF0)) / 2 extern TileIndex _animated_tile_list[256]; extern char _name_array[512][32]; extern uint16 _custom_sprites_base; static byte _old_vehicle_multipler; static uint8 _old_map3[OLD_MAP_SIZE * 2]; static bool _new_ttdpatch_format; static uint32 _old_town_index; static uint16 _old_string_id; static uint16 _old_string_id_2; static void ReadTTDPatchFlags(void) { int i; if (_read_ttdpatch_flags) return; _read_ttdpatch_flags = true; /* TTDPatch misuses _old_map3 for flags.. read them! */ _old_vehicle_multipler = _old_map3[0]; /* Somehow.... there was an error in some savegames, so 0 becomes 1 and 1 becomes 2. The rest of the values are okay */ if (_old_vehicle_multipler < 2) _old_vehicle_multipler++; /* TTDPatch incraeses the Vehicle-part in the middle of the game, so if the multipler is anything else but 1, the assert fails.. bump the assert value so it doesn't! (1 multipler == 850 vehicles 1 vehicle == 128 bytes */ _bump_assert_value = (_old_vehicle_multipler - 1) * 850 * 128; _new_ttdpatch_format = false; /* Check if we have a modern TTDPatch savegame (has extra data all around) */ if (memcmp(&_old_map3[0x1FFFA], "TTDp", 4) == 0) _new_ttdpatch_format = true; /* Clean the misused places */ for (i = 0; i < 17; i++) _old_map3[i] = 0; for (i = 0x1FE00; i < 0x20000; i++) _old_map3[i] = 0; if (_new_ttdpatch_format) DEBUG(oldloader, 1)("[OldLoader] Found TTDPatch game"); DEBUG(oldloader, 1)("[OldLoader] Vehicle-multipler is set to %d (%d vehicles)", _old_vehicle_multipler, _old_vehicle_multipler * 850); } static const OldChunks town_chunk[] = { OCL_SVAR( OC_TILE, Town, xy ), OCL_SVAR( OC_FILE_U16 | OC_VAR_U32, Town, population ), OCL_SVAR( OC_UINT16, Town, townnametype ), OCL_SVAR( OC_UINT32, Town, townnameparts ), OCL_SVAR( OC_UINT8, Town, grow_counter ), OCL_NULL( 1 ), // sort_index, no longer in use OCL_NULL( 4 ), // sign-coordinates, no longer in use OCL_NULL( 2 ), // namewidth, no longer in use OCL_SVAR( OC_UINT16, Town, flags12 ), OCL_NULL( 10 ), // radius, no longer in use OCL_SVAR( OC_UINT16, Town, ratings[0] ), OCL_SVAR( OC_UINT16, Town, ratings[1] ), OCL_SVAR( OC_UINT16, Town, ratings[2] ), OCL_SVAR( OC_UINT16, Town, ratings[3] ), OCL_SVAR( OC_UINT16, Town, ratings[4] ), OCL_SVAR( OC_UINT16, Town, ratings[5] ), OCL_SVAR( OC_UINT16, Town, ratings[6] ), OCL_SVAR( OC_UINT16, Town, ratings[7] ), /* XXX - This is pretty odd.. we read 32bit, but only write 8bit.. sure there is nothing changed?? */ OCL_SVAR( OC_FILE_U32 | OC_VAR_U8, Town, have_ratings ), OCL_SVAR( OC_FILE_U32 | OC_VAR_U8, Town, statues ), OCL_SVAR( OC_UINT16, Town, num_houses ), OCL_SVAR( OC_UINT8, Town, time_until_rebuild ), OCL_SVAR( OC_UINT8, Town, growth_rate ), OCL_SVAR( OC_UINT16, Town, new_max_pass ), OCL_SVAR( OC_UINT16, Town, new_max_mail ), OCL_SVAR( OC_UINT16, Town, new_act_pass ), OCL_SVAR( OC_UINT16, Town, new_act_mail ), OCL_SVAR( OC_UINT16, Town, max_pass ), OCL_SVAR( OC_UINT16, Town, max_mail ), OCL_SVAR( OC_UINT16, Town, act_pass ), OCL_SVAR( OC_UINT16, Town, act_mail ), OCL_SVAR( OC_UINT8, Town, pct_pass_transported ), OCL_SVAR( OC_UINT8, Town, pct_mail_transported ), OCL_SVAR( OC_UINT16, Town, new_act_food ), OCL_SVAR( OC_UINT16, Town, new_act_water ), OCL_SVAR( OC_UINT16, Town, act_food ), OCL_SVAR( OC_UINT16, Town, act_water ), OCL_SVAR( OC_UINT8, Town, road_build_months ), OCL_SVAR( OC_UINT8, Town, fund_buildings_months ), OCL_NULL( 8 ), // some junk at the end of the record OCL_END() }; static bool LoadOldTown(LoadgameState *ls, int num) { if (!AddBlockIfNeeded(&_town_pool, num)) error("Towns: failed loading savegame: too many towns"); return LoadChunk(ls, GetTown(num), town_chunk); } static uint16 _old_order; static const OldChunks order_chunk[] = { OCL_VAR ( OC_UINT16, 1, &_old_order ), OCL_END() }; static bool LoadOldOrder(LoadgameState *ls, int num) { if (!AddBlockIfNeeded(&_order_pool, num)) error("Orders: failed loading savegame: too many orders"); if (!LoadChunk(ls, NULL, order_chunk)) return false; AssignOrder(GetOrder(num), UnpackOldOrder(_old_order)); /* Relink the orders to eachother (in TTD(Patch) the orders for one vehicle are behind eachother, with OT_NOTHING as indication that it is the last order */ if (num > 0 && GetOrder(num)->type != OT_NOTHING) GetOrder(num - 1)->next = GetOrder(num); return true; } static const OldChunks depot_chunk[] = { OCL_SVAR( OC_TILE, Depot, xy ), OCL_VAR ( OC_UINT32, 1, &_old_town_index ), OCL_END() }; static bool LoadOldDepot(LoadgameState *ls, int num) { if (!AddBlockIfNeeded(&_depot_pool, num)) error("Depots: failed loading savegame: too many depots"); if (!LoadChunk(ls, GetDepot(num), depot_chunk)) return false; if (GetDepot(num)->xy != 0) { GetDepot(num)->town_index = REMAP_TOWN_IDX(_old_town_index); } return true; } static int32 _old_price; static uint16 _old_price_frac; static const OldChunks price_chunk[] = { OCL_VAR ( OC_INT32, 1, &_old_price ), OCL_VAR ( OC_UINT16, 1, &_old_price_frac ), OCL_END() }; static bool LoadOldPrice(LoadgameState *ls, int num) { if (!LoadChunk(ls, NULL, price_chunk)) return false; /* We use a struct to store the prices, but they are ints in a row.. so just access the struct as an array of int32's */ ((int32*)&_price)[num] = _old_price; _price_frac[num] = _old_price_frac; return true; } static const OldChunks cargo_payment_rate_chunk[] = { OCL_VAR ( OC_INT32, 1, &_old_price ), OCL_VAR ( OC_UINT16, 1, &_old_price_frac ), OCL_NULL( 2 ), // Junk OCL_END() }; static bool LoadOldCargoPaymentRate(LoadgameState *ls, int num) { if (!LoadChunk(ls, NULL, cargo_payment_rate_chunk)) return false; _cargo_payment_rates[num] = -_old_price; _cargo_payment_rates_frac[num] = _old_price_frac; return true; } static uint8 _old_platforms; static uint _current_station_id; static const OldChunks goods_chunk[] = { OCL_SVAR( OC_UINT16, GoodsEntry, waiting_acceptance ), OCL_SVAR( OC_UINT8, GoodsEntry, days_since_pickup ), OCL_SVAR( OC_UINT8, GoodsEntry, rating ), OCL_SVAR( OC_FILE_U8 | OC_VAR_U16, GoodsEntry, enroute_from ), OCL_SVAR( OC_UINT8, GoodsEntry, enroute_time ), OCL_SVAR( OC_UINT8, GoodsEntry, last_speed ), OCL_SVAR( OC_UINT8, GoodsEntry, last_age ), OCL_END() }; static bool LoadOldGood(LoadgameState *ls, int num) { Station *st = GetStation(_current_station_id); return LoadChunk(ls, &st->goods[num], goods_chunk); } static const OldChunks station_chunk[] = { OCL_SVAR( OC_TILE, Station, xy ), OCL_VAR ( OC_UINT32, 1, &_old_town_index ), OCL_SVAR( OC_TILE, Station, bus_tile_obsolete ), OCL_SVAR( OC_TILE, Station, lorry_tile_obsolete ), OCL_SVAR( OC_TILE, Station, train_tile ), OCL_SVAR( OC_TILE, Station, airport_tile ), OCL_SVAR( OC_TILE, Station, dock_tile ), OCL_VAR ( OC_UINT8, 1, &_old_platforms ), OCL_NULL( 1 ), // sort-index, no longer in use OCL_NULL( 2 ), // sign-width, no longer in use OCL_VAR ( OC_UINT16, 1, &_old_string_id ), OCL_NULL( 4 ), // sign left/top, no longer in use OCL_SVAR( OC_UINT16, Station, had_vehicle_of_type ), OCL_CHUNK( 12, LoadOldGood ), OCL_SVAR( OC_UINT8, Station, time_since_load ), OCL_SVAR( OC_UINT8, Station, time_since_unload ), OCL_SVAR( OC_UINT8, Station, delete_ctr ), OCL_SVAR( OC_UINT8, Station, owner ), OCL_SVAR( OC_UINT8, Station, facilities ), OCL_SVAR( OC_UINT8, Station, airport_type ), OCL_NULL( 2 ), // Bus/truck status, no longer in use OCL_SVAR( OC_UINT8, Station, blocked_months_obsolete ), OCL_NULL( 1 ), // Unknown OCL_SVAR( OC_FILE_U16 | OC_VAR_U32, Station, airport_flags ), OCL_SVAR( OC_UINT16, Station, last_vehicle ), OCL_NULL( 4 ), // Junk at end of chunk OCL_END() }; static bool LoadOldStation(LoadgameState *ls, int num) { Station *st; if (!AddBlockIfNeeded(&_station_pool, num)) error("Stations: failed loading savegame: too many stations"); st = GetStation(num); _current_station_id = num; if (!LoadChunk(ls, st, station_chunk)) return false; if (st->xy != 0) { if (st->train_tile) { /* Calculate the trainst_w and trainst_h */ uint w = GB(_old_platforms, 3, 3); uint h = GB(_old_platforms, 0, 3); st->trainst_w = w; st->trainst_h = h; } st->town = GetTown(REMAP_TOWN_IDX(_old_town_index)); st->string_id = RemapOldStringID(_old_string_id); } return true; } static const OldChunks industry_chunk[] = { OCL_SVAR( OC_TILE, Industry, xy ), OCL_VAR ( OC_UINT32, 1, &_old_town_index ), OCL_SVAR( OC_UINT8, Industry, width ), OCL_SVAR( OC_UINT8, Industry, height ), OCL_SVAR( OC_UINT8, Industry, produced_cargo[0] ), OCL_SVAR( OC_UINT8, Industry, produced_cargo[1] ), OCL_SVAR( OC_UINT16, Industry, cargo_waiting[0] ), OCL_SVAR( OC_UINT16, Industry, cargo_waiting[1] ), OCL_SVAR( OC_UINT8, Industry, production_rate[0] ), OCL_SVAR( OC_UINT8, Industry, production_rate[1] ), OCL_SVAR( OC_UINT8, Industry, accepts_cargo[0] ), OCL_SVAR( OC_UINT8, Industry, accepts_cargo[1] ), OCL_SVAR( OC_UINT8, Industry, accepts_cargo[2] ), OCL_SVAR( OC_UINT8, Industry, prod_level ), OCL_SVAR( OC_UINT16, Industry, last_mo_production[0] ), OCL_SVAR( OC_UINT16, Industry, last_mo_production[1] ), OCL_SVAR( OC_UINT16, Industry, last_mo_transported[0] ), OCL_SVAR( OC_UINT16, Industry, last_mo_transported[1] ), OCL_SVAR( OC_UINT8, Industry, pct_transported[0] ), OCL_SVAR( OC_UINT8, Industry, pct_transported[1] ), OCL_SVAR( OC_UINT16, Industry, total_production[0] ), OCL_SVAR( OC_UINT16, Industry, total_production[1] ), OCL_SVAR( OC_UINT16, Industry, total_transported[0] ), OCL_SVAR( OC_UINT16, Industry, total_transported[1] ), OCL_SVAR( OC_UINT8, Industry, type ), OCL_SVAR( OC_UINT8, Industry, owner ), OCL_SVAR( OC_UINT8, Industry, color_map ), OCL_SVAR( OC_UINT8, Industry, last_prod_year ), OCL_SVAR( OC_UINT16, Industry, counter ), OCL_SVAR( OC_UINT8, Industry, was_cargo_delivered ), OCL_NULL( 9 ), // Random junk at the end of this chunk OCL_END() }; static bool LoadOldIndustry(LoadgameState *ls, int num) { Industry *i; if (!AddBlockIfNeeded(&_industry_pool, num)) error("Industries: failed loading savegame: too many industries"); i = GetIndustry(num); if (!LoadChunk(ls, i, industry_chunk)) return false; if (i->xy != 0) { i->town = GetTown(REMAP_TOWN_IDX(_old_town_index)); } return true; } static PlayerID _current_player_id; static uint16 _old_inaugurated_year; static int32 _old_yearly; static const OldChunks player_yearly_chunk[] = { OCL_VAR( OC_INT32, 1, &_old_yearly ), OCL_END() }; static bool OldPlayerYearly(LoadgameState *ls, int num) { int i; Player *p = GetPlayer(_current_player_id); for (i = 0; i < 13; i++) { if (!LoadChunk(ls, NULL, player_yearly_chunk)) return false; p->yearly_expenses[num][i] = _old_yearly; } return true; } static const OldChunks player_economy_chunk[] = { OCL_SVAR( OC_INT32, PlayerEconomyEntry, income ), OCL_SVAR( OC_INT32, PlayerEconomyEntry, expenses ), OCL_SVAR( OC_INT32, PlayerEconomyEntry, delivered_cargo ), OCL_SVAR( OC_INT32, PlayerEconomyEntry, performance_history ), OCL_SVAR( OC_FILE_I32 | OC_VAR_I64, PlayerEconomyEntry, company_value ), OCL_END() }; static bool OldPlayerEconomy(LoadgameState *ls, int num) { int i; Player *p = GetPlayer(_current_player_id); if (!LoadChunk(ls, &p->cur_economy, player_economy_chunk)) return false; /* Don't ask, but the number in TTD(Patch) are inversed to OpenTTD */ p->cur_economy.income = -p->cur_economy.income; p->cur_economy.expenses = -p->cur_economy.expenses; for (i = 0; i < 24; i++) { if (!LoadChunk(ls, &p->old_economy[i], player_economy_chunk)) return false; p->old_economy[i].income = -p->old_economy[i].income; p->old_economy[i].expenses = -p->old_economy[i].expenses; } return true; } static const OldChunks player_ai_build_rec_chunk[] = { OCL_SVAR( OC_TILE, AiBuildRec, spec_tile ), OCL_SVAR( OC_TILE, AiBuildRec, use_tile ), OCL_SVAR( OC_UINT8, AiBuildRec, rand_rng ), OCL_SVAR( OC_UINT8, AiBuildRec, cur_building_rule ), OCL_SVAR( OC_UINT8, AiBuildRec, unk6 ), OCL_SVAR( OC_UINT8, AiBuildRec, unk7 ), OCL_SVAR( OC_UINT8, AiBuildRec, buildcmd_a ), OCL_SVAR( OC_UINT8, AiBuildRec, buildcmd_b ), OCL_SVAR( OC_UINT8, AiBuildRec, direction ), OCL_SVAR( OC_UINT8, AiBuildRec, cargo ), OCL_NULL( 8 ), // Junk... OCL_END() }; static bool OldLoadAIBuildRec(LoadgameState *ls, int num) { Player *p = GetPlayer(_current_player_id); switch (num) { case 0: return LoadChunk(ls, &p->ai.src, player_ai_build_rec_chunk); case 1: return LoadChunk(ls, &p->ai.dst, player_ai_build_rec_chunk); case 2: return LoadChunk(ls, &p->ai.mid1, player_ai_build_rec_chunk); case 3: return LoadChunk(ls, &p->ai.mid2, player_ai_build_rec_chunk); } return false; } static const OldChunks player_ai_chunk[] = { OCL_SVAR( OC_UINT8, PlayerAI, state ), OCL_NULL( 1 ), // Junk OCL_SVAR( OC_UINT8, PlayerAI, state_mode ), OCL_SVAR( OC_UINT16, PlayerAI, state_counter ), OCL_SVAR( OC_UINT16, PlayerAI, timeout_counter ), OCL_CHUNK( 4, OldLoadAIBuildRec ), OCL_NULL( 20 ), // More junk OCL_SVAR( OC_UINT8, PlayerAI, cargo_type ), OCL_SVAR( OC_UINT8, PlayerAI, num_wagons ), OCL_SVAR( OC_UINT8, PlayerAI, build_kind ), OCL_SVAR( OC_UINT8, PlayerAI, num_build_rec ), OCL_SVAR( OC_UINT8, PlayerAI, num_loco_to_build ), OCL_SVAR( OC_UINT8, PlayerAI, num_want_fullload ), OCL_NULL( 14 ), // Oh no more junk :| OCL_NULL( 2 ), // Loco-id, not used OCL_SVAR( OC_UINT16, PlayerAI, wagon_list[0] ), OCL_SVAR( OC_UINT16, PlayerAI, wagon_list[1] ), OCL_SVAR( OC_UINT16, PlayerAI, wagon_list[2] ), OCL_SVAR( OC_UINT16, PlayerAI, wagon_list[3] ), OCL_SVAR( OC_UINT16, PlayerAI, wagon_list[4] ), OCL_SVAR( OC_UINT16, PlayerAI, wagon_list[5] ), OCL_SVAR( OC_UINT16, PlayerAI, wagon_list[6] ), OCL_SVAR( OC_UINT16, PlayerAI, wagon_list[7] ), OCL_SVAR( OC_UINT16, PlayerAI, wagon_list[8] ), OCL_SVAR( OC_UINT8, PlayerAI, order_list_blocks[0] ), OCL_SVAR( OC_UINT8, PlayerAI, order_list_blocks[1] ), OCL_SVAR( OC_UINT8, PlayerAI, order_list_blocks[2] ), OCL_SVAR( OC_UINT8, PlayerAI, order_list_blocks[3] ), OCL_SVAR( OC_UINT8, PlayerAI, order_list_blocks[4] ), OCL_SVAR( OC_UINT8, PlayerAI, order_list_blocks[5] ), OCL_SVAR( OC_UINT8, PlayerAI, order_list_blocks[6] ), OCL_SVAR( OC_UINT8, PlayerAI, order_list_blocks[7] ), OCL_SVAR( OC_UINT8, PlayerAI, order_list_blocks[8] ), OCL_SVAR( OC_UINT8, PlayerAI, order_list_blocks[9] ), OCL_SVAR( OC_UINT8, PlayerAI, order_list_blocks[10] ), OCL_SVAR( OC_UINT8, PlayerAI, order_list_blocks[11] ), OCL_SVAR( OC_UINT8, PlayerAI, order_list_blocks[12] ), OCL_SVAR( OC_UINT8, PlayerAI, order_list_blocks[13] ), OCL_SVAR( OC_UINT8, PlayerAI, order_list_blocks[14] ), OCL_SVAR( OC_UINT8, PlayerAI, order_list_blocks[15] ), OCL_SVAR( OC_UINT8, PlayerAI, order_list_blocks[16] ), OCL_SVAR( OC_UINT8, PlayerAI, order_list_blocks[17] ), OCL_SVAR( OC_UINT8, PlayerAI, order_list_blocks[18] ), OCL_SVAR( OC_UINT8, PlayerAI, order_list_blocks[19] ), OCL_SVAR( OC_UINT16, PlayerAI, start_tile_a ), OCL_SVAR( OC_UINT16, PlayerAI, start_tile_b ), OCL_SVAR( OC_UINT16, PlayerAI, cur_tile_a ), OCL_SVAR( OC_UINT16, PlayerAI, cur_tile_b ), OCL_SVAR( OC_UINT8, PlayerAI, start_dir_a ), OCL_SVAR( OC_UINT8, PlayerAI, start_dir_b ), OCL_SVAR( OC_UINT8, PlayerAI, cur_dir_a ), OCL_SVAR( OC_UINT8, PlayerAI, cur_dir_b ), OCL_SVAR( OC_UINT8, PlayerAI, banned_tile_count ), OCL_SVAR( OC_TILE, PlayerAI, banned_tiles[0] ), OCL_SVAR( OC_UINT8, PlayerAI, banned_val[0] ), OCL_SVAR( OC_TILE, PlayerAI, banned_tiles[1] ), OCL_SVAR( OC_UINT8, PlayerAI, banned_val[1] ), OCL_SVAR( OC_TILE, PlayerAI, banned_tiles[2] ), OCL_SVAR( OC_UINT8, PlayerAI, banned_val[2] ), OCL_SVAR( OC_TILE, PlayerAI, banned_tiles[3] ), OCL_SVAR( OC_UINT8, PlayerAI, banned_val[3] ), OCL_SVAR( OC_TILE, PlayerAI, banned_tiles[4] ), OCL_SVAR( OC_UINT8, PlayerAI, banned_val[4] ), OCL_SVAR( OC_TILE, PlayerAI, banned_tiles[5] ), OCL_SVAR( OC_UINT8, PlayerAI, banned_val[5] ), OCL_SVAR( OC_TILE, PlayerAI, banned_tiles[6] ), OCL_SVAR( OC_UINT8, PlayerAI, banned_val[6] ), OCL_SVAR( OC_TILE, PlayerAI, banned_tiles[7] ), OCL_SVAR( OC_UINT8, PlayerAI, banned_val[7] ), OCL_SVAR( OC_TILE, PlayerAI, banned_tiles[8] ), OCL_SVAR( OC_UINT8, PlayerAI, banned_val[8] ), OCL_SVAR( OC_TILE, PlayerAI, banned_tiles[9] ), OCL_SVAR( OC_UINT8, PlayerAI, banned_val[9] ), OCL_SVAR( OC_TILE, PlayerAI, banned_tiles[10] ), OCL_SVAR( OC_UINT8, PlayerAI, banned_val[10] ), OCL_SVAR( OC_TILE, PlayerAI, banned_tiles[11] ), OCL_SVAR( OC_UINT8, PlayerAI, banned_val[11] ), OCL_SVAR( OC_TILE, PlayerAI, banned_tiles[12] ), OCL_SVAR( OC_UINT8, PlayerAI, banned_val[12] ), OCL_SVAR( OC_TILE, PlayerAI, banned_tiles[13] ), OCL_SVAR( OC_UINT8, PlayerAI, banned_val[13] ), OCL_SVAR( OC_TILE, PlayerAI, banned_tiles[14] ), OCL_SVAR( OC_UINT8, PlayerAI, banned_val[14] ), OCL_SVAR( OC_TILE, PlayerAI, banned_tiles[15] ), OCL_SVAR( OC_UINT8, PlayerAI, banned_val[15] ), OCL_SVAR( OC_UINT8, PlayerAI, railtype_to_use ), OCL_SVAR( OC_UINT8, PlayerAI, route_type_mask ), OCL_END() }; static bool OldPlayerAI(LoadgameState *ls, int num) { Player *p = GetPlayer(_current_player_id); return LoadChunk(ls, &p->ai, player_ai_chunk); } static const OldChunks player_chunk[] = { OCL_VAR ( OC_UINT16, 1, &_old_string_id ), OCL_SVAR( OC_UINT32, Player, name_2 ), OCL_SVAR( OC_UINT32, Player, face ), OCL_VAR ( OC_UINT16, 1, &_old_string_id_2 ), OCL_SVAR( OC_UINT32, Player, president_name_2 ), OCL_SVAR( OC_INT32, Player, player_money ), OCL_SVAR( OC_INT32, Player, current_loan ), OCL_SVAR( OC_UINT8, Player, player_color ), OCL_SVAR( OC_UINT8, Player, player_money_fraction ), OCL_SVAR( OC_UINT8, Player, quarters_of_bankrupcy ), OCL_SVAR( OC_UINT8, Player, bankrupt_asked ), OCL_SVAR( OC_UINT32, Player, bankrupt_value ), OCL_SVAR( OC_UINT16, Player, bankrupt_timeout ), OCL_SVAR( OC_FILE_U32 | OC_VAR_U16, Player, cargo_types ), OCL_CHUNK( 3, OldPlayerYearly ), OCL_CHUNK( 1, OldPlayerEconomy ), OCL_VAR ( OC_UINT16, 1, &_old_inaugurated_year ), OCL_SVAR( OC_TILE, Player, last_build_coordinate ), OCL_SVAR( OC_UINT8, Player, num_valid_stat_ent ), OCL_CHUNK( 1, OldPlayerAI ), OCL_SVAR( OC_UINT8, Player, block_preview ), OCL_SVAR( OC_UINT8, Player, ai.tick ), OCL_SVAR( OC_UINT8, Player, avail_railtypes ), OCL_SVAR( OC_TILE, Player, location_of_house ), OCL_SVAR( OC_UINT8, Player, share_owners[0] ), OCL_SVAR( OC_UINT8, Player, share_owners[1] ), OCL_SVAR( OC_UINT8, Player, share_owners[2] ), OCL_SVAR( OC_UINT8, Player, share_owners[3] ), OCL_NULL( 8 ), // junk at end of chunk OCL_END() }; static bool LoadOldPlayer(LoadgameState *ls, int num) { Player *p = GetPlayer(num); _current_player_id = num; if (!LoadChunk(ls, p, player_chunk)) return false; p->name_1 = RemapOldStringID(_old_string_id); p->president_name_1 = RemapOldStringID(_old_string_id_2); p->money64 = p->player_money; if (num == 0) { /* If the first player has no name, make sure we call it UNNAMED */ if (p->name_1 == 0) p->name_1 = STR_SV_UNNAMED; } else { /* Beside some multiplayer maps (1 on 1), which we don't official support, all other players are an AI.. mark them as such */ p->is_ai = 1; } /* Sometimes it is better to not ask.. in old scenarios, the money was always 893288 pounds. In the newer versions this is correct, but correct for those oldies Ps: this also means that if you had exact 893288 pounds, you will go back to 10000.. this is a very VERY small chance ;) */ if (p->player_money == 893288) p->money64 = p->player_money = p->current_loan = 100000; _player_colors[num] = p->player_color; p->inaugurated_year = _old_inaugurated_year - MAX_YEAR_BEGIN_REAL; if (p->location_of_house == 0xFFFF) p->location_of_house = 0; /* State 20 for AI players is sell vehicle. Since the AI struct is not * really figured out as of now, p->ai.cur_veh; needed for 'sell vehicle' * is NULL and the function will crash. To fix this, just change the state * to some harmless state, like 'loop vehicle'; 1 */ if (!IS_HUMAN_PLAYER(num) && p->ai.state == 20) p->ai.state = 1; if (p->is_ai && (!_networking || _network_server) && _ai.enabled) AI_StartNewAI(p->index); return true; } static uint32 _old_order_ptr; static uint16 _old_next_ptr; static uint32 _current_vehicle_id; static const OldChunks vehicle_train_chunk[] = { OCL_SVAR( OC_UINT8, VehicleRail, track ), OCL_SVAR( OC_UINT8, VehicleRail, force_proceed ), OCL_SVAR( OC_UINT16, VehicleRail, crash_anim_pos ), OCL_SVAR( OC_UINT8, VehicleRail, railtype ), OCL_NULL( 5 ), // Junk OCL_END() }; static const OldChunks vehicle_road_chunk[] = { OCL_SVAR( OC_UINT8, VehicleRoad, state ), OCL_SVAR( OC_UINT8, VehicleRoad, frame ), OCL_SVAR( OC_UINT16, VehicleRoad, unk2 ), OCL_SVAR( OC_UINT8, VehicleRoad, overtaking ), OCL_SVAR( OC_UINT8, VehicleRoad, overtaking_ctr ), OCL_SVAR( OC_UINT16, VehicleRoad, crashed_ctr ), OCL_SVAR( OC_UINT8, VehicleRoad, reverse_ctr ), OCL_NULL( 1 ), // Junk OCL_END() }; static const OldChunks vehicle_ship_chunk[] = { OCL_SVAR( OC_UINT8, VehicleShip, state ), OCL_NULL( 9 ), // Junk OCL_END() }; static const OldChunks vehicle_air_chunk[] = { OCL_SVAR( OC_UINT8, VehicleAir, pos ), OCL_SVAR( OC_FILE_U8 | OC_VAR_U16, VehicleAir, targetairport ), OCL_SVAR( OC_UINT16, VehicleAir, crashed_counter ), OCL_SVAR( OC_UINT8, VehicleAir, state ), OCL_NULL( 5 ), // Junk OCL_END() }; static const OldChunks vehicle_special_chunk[] = { OCL_SVAR( OC_UINT16, VehicleSpecial, unk0 ), OCL_SVAR( OC_UINT8, VehicleSpecial, unk2 ), OCL_NULL( 7 ), // Junk OCL_END() }; static const OldChunks vehicle_disaster_chunk[] = { OCL_SVAR( OC_UINT16, VehicleDisaster, image_override ), OCL_SVAR( OC_UINT16, VehicleDisaster, unk2 ), OCL_NULL( 6 ), // Junk OCL_END() }; static const OldChunks vehicle_empty_chunk[] = { OCL_NULL( 10 ), // Junk OCL_END() }; static bool LoadOldVehicleUnion(LoadgameState *ls, int num) { Vehicle *v = GetVehicle(_current_vehicle_id); uint temp = ls->total_read; bool res; switch (v->type) { case VEH_Train: res = LoadChunk(ls, &v->u.rail, vehicle_train_chunk); break; case VEH_Road: res = LoadChunk(ls, &v->u.road, vehicle_road_chunk); break; case VEH_Ship: res = LoadChunk(ls, &v->u.ship, vehicle_ship_chunk); break; case VEH_Aircraft: res = LoadChunk(ls, &v->u.air, vehicle_air_chunk); break; case VEH_Special: res = LoadChunk(ls, &v->u.special, vehicle_special_chunk); break; case VEH_Disaster: res = LoadChunk(ls, &v->u.disaster, vehicle_disaster_chunk); break; default: res = LoadChunk(ls, NULL, vehicle_empty_chunk); break; } /* This chunk size should always be 10 bytes */ if (ls->total_read - temp != 10) { DEBUG(oldloader, 4)("[OldLoader] Assert failed in Vehicle"); return false; } return res; } static const OldChunks vehicle_chunk[] = { OCL_SVAR( OC_UINT8, Vehicle, type ), OCL_SVAR( OC_UINT8, Vehicle, subtype ), OCL_NULL( 2 ), // Hash, calculated automatically OCL_NULL( 2 ), // Index, calculated automatically OCL_VAR ( OC_UINT32, 1, &_old_order_ptr ), OCL_VAR ( OC_UINT16, 1, &_old_order ), OCL_SVAR( OC_UINT8, Vehicle, num_orders ), OCL_SVAR( OC_UINT8, Vehicle, cur_order_index ), OCL_SVAR( OC_TILE, Vehicle, dest_tile ), OCL_SVAR( OC_UINT16, Vehicle, load_unload_time_rem ), OCL_SVAR( OC_UINT16, Vehicle, date_of_last_service ), OCL_SVAR( OC_UINT16, Vehicle, service_interval ), OCL_SVAR( OC_FILE_U8 | OC_VAR_U16, Vehicle, last_station_visited ), OCL_SVAR( OC_UINT8, Vehicle, tick_counter ), OCL_SVAR( OC_UINT16, Vehicle, max_speed ), OCL_SVAR( OC_FILE_U16 | OC_VAR_I32, Vehicle, x_pos ), OCL_SVAR( OC_FILE_U16 | OC_VAR_I32, Vehicle, y_pos ), OCL_SVAR( OC_UINT8, Vehicle, z_pos ), OCL_SVAR( OC_UINT8, Vehicle, direction ), OCL_SVAR( OC_INT8, Vehicle, x_offs ), OCL_SVAR( OC_INT8, Vehicle, y_offs ), OCL_SVAR( OC_UINT8, Vehicle, sprite_width ), OCL_SVAR( OC_UINT8, Vehicle, sprite_height ), OCL_SVAR( OC_UINT8, Vehicle, z_height ), OCL_SVAR( OC_UINT8, Vehicle, owner ), OCL_SVAR( OC_TILE, Vehicle, tile ), OCL_SVAR( OC_UINT16, Vehicle, cur_image ), OCL_NULL( 8 ), // Vehicle sprite box, calculated automatically OCL_SVAR( OC_FILE_U16 | OC_VAR_U8, Vehicle, vehstatus ), OCL_SVAR( OC_UINT16, Vehicle, cur_speed ), OCL_SVAR( OC_UINT8, Vehicle, subspeed ), OCL_SVAR( OC_UINT8, Vehicle, acceleration ), OCL_SVAR( OC_UINT8, Vehicle, progress ), OCL_SVAR( OC_UINT8, Vehicle, cargo_type ), OCL_SVAR( OC_UINT16, Vehicle, cargo_cap ), OCL_SVAR( OC_UINT16, Vehicle, cargo_count ), OCL_SVAR( OC_FILE_U8 | OC_VAR_U16, Vehicle, cargo_source ), OCL_SVAR( OC_UINT8, Vehicle, cargo_days ), OCL_SVAR( OC_UINT16, Vehicle, age ), OCL_SVAR( OC_UINT16, Vehicle, max_age ), OCL_SVAR( OC_UINT8, Vehicle, build_year ), OCL_SVAR( OC_FILE_U8 | OC_VAR_U16, Vehicle, unitnumber ), OCL_SVAR( OC_UINT16, Vehicle, engine_type ), OCL_SVAR( OC_UINT8, Vehicle, spritenum ), OCL_SVAR( OC_UINT8, Vehicle, day_counter ), OCL_SVAR( OC_UINT8, Vehicle, breakdowns_since_last_service ), OCL_SVAR( OC_UINT8, Vehicle, breakdown_ctr ), OCL_SVAR( OC_UINT8, Vehicle, breakdown_delay ), OCL_SVAR( OC_UINT8, Vehicle, breakdown_chance ), OCL_SVAR( OC_UINT16, Vehicle, reliability ), OCL_SVAR( OC_UINT16, Vehicle, reliability_spd_dec ), OCL_SVAR( OC_INT32, Vehicle, profit_this_year ), OCL_SVAR( OC_INT32, Vehicle, profit_last_year ), OCL_VAR ( OC_UINT16, 1, &_old_next_ptr ), OCL_SVAR( OC_UINT32, Vehicle, value ), OCL_VAR ( OC_UINT16, 1, &_old_string_id ), OCL_CHUNK( 1, LoadOldVehicleUnion ), OCL_NULL( 20 ), // Junk at end of struct (TTDPatch has some data in it) OCL_END() }; static bool LoadOldVehicle(LoadgameState *ls, int num) { uint i; /* Read the TTDPatch flags, because we need some info from it */ ReadTTDPatchFlags(); for (i = 0; i < _old_vehicle_multipler; i++) { Vehicle *v; _current_vehicle_id = num * _old_vehicle_multipler + i; if (!AddBlockIfNeeded(&_vehicle_pool, _current_vehicle_id)) error("Vehicles: failed loading savegame: too many vehicles"); v = GetVehicle(_current_vehicle_id); if (!LoadChunk(ls, v, vehicle_chunk)) return false; /* This should be consistent, else we have a big problem... */ if (v->index != _current_vehicle_id) { DEBUG(oldloader, 0)("[OldLoader] -- Loading failed - vehicle-array is invalid"); return false; } if (_old_order_ptr != 0 && _old_order_ptr != 0xFFFFFFFF) { v->orders = GetOrder(REMAP_ORDER_IDX(_old_order_ptr)); } AssignOrder(&v->current_order, UnpackOldOrder(_old_order)); /* TTDPatch maps sprites from 0x2000 up. */ if (v->cur_image >= 0x2000) v->cur_image -= 0x2000 - _custom_sprites_base; /* For some reason we need to correct for this */ switch (v->spritenum) { case 0xfd: break; case 0xff: v->spritenum = 0xfe; break; default: v->spritenum >>= 1; break; } if (_old_next_ptr != 0xFFFF) v->next = GetVehicle(_old_next_ptr); v->string_id = RemapOldStringID(_old_string_id); /* Vehicle-subtype is different in TTD(Patch) */ if (v->type == VEH_Special) v->subtype = v->subtype >> 1; } return true; } static const OldChunks sign_chunk[] = { OCL_SVAR( OC_UINT16, SignStruct, str ), OCL_SVAR( OC_FILE_U16 | OC_VAR_I32,SignStruct, x ), OCL_SVAR( OC_FILE_U16 | OC_VAR_I32,SignStruct, y ), OCL_SVAR( OC_FILE_U16 | OC_VAR_I8, SignStruct, z ), OCL_NULL( 6 ), // Width of sign, no longer in use OCL_END() }; static bool LoadOldSign(LoadgameState *ls, int num) { if (!AddBlockIfNeeded(&_sign_pool, num)) error("Signs: failed loading savegame: too many signs"); return LoadChunk(ls, GetSign(num), sign_chunk); } static const OldChunks engine_chunk[] = { OCL_SVAR( OC_UINT16, Engine, player_avail ), OCL_SVAR( OC_UINT16, Engine, intro_date ), OCL_SVAR( OC_UINT16, Engine, age ), OCL_SVAR( OC_UINT16, Engine, reliability ), OCL_SVAR( OC_UINT16, Engine, reliability_spd_dec ), OCL_SVAR( OC_UINT16, Engine, reliability_start ), OCL_SVAR( OC_UINT16, Engine, reliability_max ), OCL_SVAR( OC_UINT16, Engine, reliability_final ), OCL_SVAR( OC_UINT16, Engine, duration_phase_1 ), OCL_SVAR( OC_UINT16, Engine, duration_phase_2 ), OCL_SVAR( OC_UINT16, Engine, duration_phase_3 ), OCL_SVAR( OC_UINT8, Engine, lifelength ), OCL_SVAR( OC_UINT8, Engine, flags ), OCL_SVAR( OC_UINT8, Engine, preview_player ), OCL_SVAR( OC_UINT8, Engine, preview_wait ), OCL_SVAR( OC_UINT8, Engine, railtype ), OCL_NULL( 1 ), // Junk OCL_END() }; static bool LoadOldEngine(LoadgameState *ls, int num) { if (!LoadChunk(ls, GetEngine(num), engine_chunk)) return false; /* Make sure wagons are marked as do-not-age */ if ((num >= 27 && num < 54) || (num >= 57 && num < 84) || (num >= 89 && num < 116)) GetEngine(num)->age = 0xFFFF; return true; } static const OldChunks subsidy_chunk[] = { OCL_SVAR( OC_UINT8, Subsidy, cargo_type ), OCL_SVAR( OC_UINT8, Subsidy, age ), OCL_SVAR( OC_FILE_U8 | OC_VAR_U16, Subsidy, from ), OCL_SVAR( OC_FILE_U8 | OC_VAR_U16, Subsidy, to ), OCL_END() }; static bool LoadOldSubsidy(LoadgameState *ls, int num) { return LoadChunk(ls, &_subsidies[num], subsidy_chunk); } static const OldChunks game_difficulty_chunk[] = { OCL_SVAR( OC_FILE_U16 | OC_VAR_I32, GameDifficulty, max_no_competitors ), OCL_SVAR( OC_FILE_U16 | OC_VAR_I32, GameDifficulty, competitor_start_time ), OCL_SVAR( OC_FILE_U16 | OC_VAR_I32, GameDifficulty, number_towns ), OCL_SVAR( OC_FILE_U16 | OC_VAR_I32, GameDifficulty, number_industries ), OCL_SVAR( OC_FILE_U16 | OC_VAR_I32, GameDifficulty, max_loan ), OCL_SVAR( OC_FILE_U16 | OC_VAR_I32, GameDifficulty, initial_interest ), OCL_SVAR( OC_FILE_U16 | OC_VAR_I32, GameDifficulty, vehicle_costs ), OCL_SVAR( OC_FILE_U16 | OC_VAR_I32, GameDifficulty, competitor_speed ), OCL_SVAR( OC_FILE_U16 | OC_VAR_I32, GameDifficulty, competitor_intelligence ), OCL_SVAR( OC_FILE_U16 | OC_VAR_I32, GameDifficulty, vehicle_breakdowns ), OCL_SVAR( OC_FILE_U16 | OC_VAR_I32, GameDifficulty, subsidy_multiplier ), OCL_SVAR( OC_FILE_U16 | OC_VAR_I32, GameDifficulty, construction_cost ), OCL_SVAR( OC_FILE_U16 | OC_VAR_I32, GameDifficulty, terrain_type ), OCL_SVAR( OC_FILE_U16 | OC_VAR_I32, GameDifficulty, quantity_sea_lakes ), OCL_SVAR( OC_FILE_U16 | OC_VAR_I32, GameDifficulty, economy ), OCL_SVAR( OC_FILE_U16 | OC_VAR_I32, GameDifficulty, line_reverse_mode ), OCL_SVAR( OC_FILE_U16 | OC_VAR_I32, GameDifficulty, disasters ), OCL_END() }; static bool LoadOldGameDifficulty(LoadgameState *ls, int num) { return LoadChunk(ls, &_opt.diff, game_difficulty_chunk); } static bool LoadOldMapPart1(LoadgameState *ls, int num) { uint i; for (i = 0; i < OLD_MAP_SIZE; i++) { _m[i].m1 = ReadByte(ls); } for (i = 0; i < OLD_MAP_SIZE; i++) { _m[i].m2 = ReadByte(ls); } for (i = 0; i < OLD_MAP_SIZE; i++) { _old_map3[i * 2] = ReadByte(ls); _old_map3[i * 2 + 1] = ReadByte(ls); } for (i = 0; i < OLD_MAP_SIZE / 4; i++) { byte b = ReadByte(ls); _m[i * 4 + 0].extra = GB(b, 0, 2); _m[i * 4 + 1].extra = GB(b, 2, 2); _m[i * 4 + 2].extra = GB(b, 4, 2); _m[i * 4 + 3].extra = GB(b, 6, 2); } return !ls->failed; } static bool LoadOldMapPart2(LoadgameState *ls, int num) { uint i; for (i = 0; i < OLD_MAP_SIZE; i++) { _m[i].type_height = ReadByte(ls); } for (i = 0; i < OLD_MAP_SIZE; i++) { _m[i].m5 = ReadByte(ls); } return !ls->failed; } static uint32 _old_cur_town_ctr; static const OldChunks main_chunk[] = { OCL_ASSERT( 0 ), OCL_VAR ( OC_UINT16, 1, &_date ), OCL_VAR ( OC_UINT16, 1, &_date_fract ), OCL_NULL( 600 ), // TextEffects OCL_VAR ( OC_UINT32, 2, &_random_seeds[0] ), OCL_ASSERT( 0x264 ), OCL_CHUNK( 70, LoadOldTown ), OCL_ASSERT( 0x1C18 ), OCL_CHUNK(5000, LoadOldOrder ), OCL_ASSERT( 0x4328 ), OCL_VAR ( OC_TILE, 256, &_animated_tile_list[0] ), OCL_NULL( 4 ), // old end-of-order-list-pointer, no longer in use OCL_CHUNK( 255, LoadOldDepot ), OCL_ASSERT( 0x4B26 ), OCL_VAR ( OC_UINT32, 1, &_old_cur_town_ctr ), OCL_NULL( 2 ), // timer_counter, no longer in use OCL_NULL( 2 ), // land_code, no longer in use OCL_VAR ( OC_FILE_U16 | OC_VAR_U8, 1, &_age_cargo_skip_counter ), OCL_VAR ( OC_UINT16, 1, &_tick_counter ), OCL_VAR ( OC_TILE, 1, &_cur_tileloop_tile ), OCL_CHUNK( 49, LoadOldPrice ), OCL_CHUNK( 12, LoadOldCargoPaymentRate ), OCL_ASSERT( 0x4CBA ), OCL_CHUNK( 1, LoadOldMapPart1 ), OCL_ASSERT( 0x48CBA ), OCL_CHUNK(250, LoadOldStation ), OCL_CHUNK( 90, LoadOldIndustry ), OCL_CHUNK( 8, LoadOldPlayer ), OCL_ASSERT( 0x547F2 ), OCL_CHUNK( 850, LoadOldVehicle ), OCL_ASSERT( 0x6F0F2 ), OCL_VAR ( OC_UINT8, 32 * 500, &_name_array[0] ), OCL_NULL( 0x2000 ), // Old hash-table, no longer in use OCL_CHUNK( 40, LoadOldSign ), OCL_CHUNK(256, LoadOldEngine ), OCL_VAR ( OC_UINT16, 1, &_vehicle_id_ctr_day ), OCL_CHUNK( 8, LoadOldSubsidy ), OCL_VAR ( OC_FILE_U16 | OC_VAR_U32, 1, &_next_competitor_start ), OCL_VAR ( OC_FILE_I16 | OC_VAR_I32, 1, &_saved_scrollpos_x ), OCL_VAR ( OC_FILE_I16 | OC_VAR_I32, 1, &_saved_scrollpos_y ), OCL_VAR ( OC_FILE_U16 | OC_VAR_U8, 1, &_saved_scrollpos_zoom ), OCL_VAR ( OC_UINT32, 1, &_economy.max_loan ), OCL_VAR ( OC_UINT32, 1, &_economy.max_loan_unround ), OCL_VAR ( OC_FILE_U16 | OC_VAR_U32, 1, &_economy.fluct ), OCL_VAR ( OC_UINT16, 1, &_disaster_delay ), OCL_NULL( 144 ), // cargo-stuff, calculated in InitializeLandscapeVariables OCL_VAR ( OC_UINT16, 256, &_engine_name_strings[0] ), OCL_NULL( 144 ), // AI cargo-stuff, calculated in InitializeLandscapeVariables OCL_NULL( 2 ), // Company indexes of players, no longer in use OCL_VAR ( OC_FILE_U8 | OC_VAR_U16, 1, &_station_tick_ctr ), OCL_VAR ( OC_UINT8, 1, &_opt.currency ), OCL_VAR ( OC_UINT8, 1, &_opt.kilometers ), OCL_VAR ( OC_FILE_U8 | OC_VAR_U32, 1, &_cur_player_tick_index ), OCL_NULL( 2 ), // Date stuff, calculated automatically OCL_NULL( 8 ), // Player colors, calculated automatically OCL_VAR ( OC_UINT8, 1, &_economy.infl_amount ), OCL_VAR ( OC_UINT8, 1, &_economy.infl_amount_pr ), OCL_VAR ( OC_UINT8, 1, &_economy.interest_rate ), OCL_VAR ( OC_UINT8, 1, &_avail_aircraft ), OCL_VAR ( OC_UINT8, 1, &_opt.road_side ), OCL_VAR ( OC_UINT8, 1, &_opt.town_name ), OCL_CHUNK( 1, LoadOldGameDifficulty ), OCL_ASSERT( 0x77130 ), OCL_VAR ( OC_UINT8, 1, &_opt.diff_level ), OCL_VAR ( OC_UINT8, 1, &_opt.landscape ), OCL_VAR ( OC_UINT8, 1, &_trees_tick_ctr ), OCL_NULL( 1 ), // Custom vehicle types yes/no, no longer used OCL_VAR ( OC_UINT8, 1, &_opt.snow_line ), OCL_NULL( 32 ), // new_industry_randtable, no longer used (because of new design) OCL_NULL( 36 ), // cargo-stuff, calculated in InitializeLandscapeVariables OCL_ASSERT( 0x77179 ), OCL_CHUNK( 1, LoadOldMapPart2 ), OCL_ASSERT( 0x97179 ), /* Below any (if available) extra chunks from TTDPatch can follow */ OCL_END() }; static bool LoadOldMain(LoadgameState *ls) { int i; /* The first 49 is the name of the game + checksum, skip it */ fseek(ls->file, HEADER_SIZE, SEEK_SET); DEBUG(oldloader, 4)("[OldLoader] Going to read main chunk.."); /* Load the biggest chunk */ if (!LoadChunk(ls, NULL, main_chunk)) { DEBUG(oldloader, 0)("[OldLoader] Loading failed!"); return false; } DEBUG(oldloader, 4)("[OldLoader] Done. Converting stuff.."); /* Fix some general stuff */ _opt.landscape = _opt.landscape & 0xF; /* Remap some pointers */ _cur_town_ctr = REMAP_TOWN_IDX(_old_cur_town_ctr); /* _old_map3 is changed in _map3_lo and _map3_hi */ for (i = 0; i < OLD_MAP_SIZE; i++) { _m[i].m3 = _old_map3[i * 2]; _m[i].m4 = _old_map3[i * 2 + 1]; } for (i = 0; i < OLD_MAP_SIZE; i ++) { if (IsTileType(i, MP_RAILWAY)) { /* We save presignals different from TTDPatch, convert them */ if (GB(_m[i].m5, 6, 2) == 1) { /* This byte is always zero in TTD for this type of tile */ if (_m[i].m4) /* Convert the presignals to our own format */ _m[i].m4 = (_m[i].m4 >> 1) & 7; } /* TTDPatch stores PBS things in L6 and all elsewhere; so we'll just * clear it for ourselves and let OTTD's rebuild PBS itself */ _m[i].m4 &= 0xF; /* Only keep the lower four bits; upper four is PBS */ } } /* Fix the game to be compatible with OpenTTD */ FixOldTowns(); FixOldStations(); FixOldVehicles(); AddTypeToEngines(); /* We have a new difficulty setting */ _opt.diff.town_council_tolerance = clamp(_opt.diff_level, 0, 2); DEBUG(oldloader, 4)("[OldLoader] Done!"); DEBUG(oldloader, 1)("[OldLoader] TTD(Patch) savegame successfully converted"); return true; } bool LoadOldSaveGame(const char *file) { LoadgameState ls; DEBUG(oldloader, 4)("[OldLoader] Trying to load an TTD(Patch) savegame"); InitLoading(&ls); /* Open file */ ls.file = fopen(file, "rb"); if (ls.file == NULL) { DEBUG(oldloader, 0)("[OldLoader] Could not open file %s", file); return false; } /* Load the main chunk */ if (!LoadOldMain(&ls)) return false; fclose(ls.file); _pause = 2; return true; } void GetOldSaveGameName(char *title, const char *file) { FILE *f; f = fopen(file, "rb"); title[0] = 0; title[48] = 0; if (f == NULL) return; if (fread(title, 1, 48, f) != 48) snprintf(title, 48, "Corrupt file"); fclose(f); } void GetOldScenarioGameName(char *title, const char *file) { GetOldSaveGameName(title, file); }