OpenTTD
Macros | Functions | Variables
oldloader_sl.cpp File Reference

Chunks and fix-ups for TTO/TTD/TTDP savegames. More...

#include "../stdafx.h"
#include "../town.h"
#include "../industry.h"
#include "../company_func.h"
#include "../aircraft.h"
#include "../roadveh.h"
#include "../ship.h"
#include "../train.h"
#include "../signs_base.h"
#include "../station_base.h"
#include "../subsidy_base.h"
#include "../debug.h"
#include "../depot_base.h"
#include "../date_func.h"
#include "../vehicle_func.h"
#include "../effectvehicle_base.h"
#include "../engine_func.h"
#include "../company_base.h"
#include "../disaster_vehicle.h"
#include "saveload_internal.h"
#include "oldloader.h"
#include "table/strings.h"
#include "../table/engines.h"
#include "../table/townname.h"
#include "../safeguards.h"

Go to the source code of this file.

Macros

#define FIXNUM(x, y, z)   (((((x) << 16) / (y)) + 1) << z)
 

Functions

void FixOldMapArray ()
 
static void FixTTDMapArray ()
 
static void FixTTDDepots ()
 
static uint32 RemapOldTownName (uint32 townnameparts, byte old_town_name_type)
 
static void FixOldTowns ()
 
void FixOldVehicles ()
 Convert the old style vehicles into something that resembles the old new style savegames. More...
 
static bool FixTTOMapArray ()
 
static bool FixTTOEngines ()
 
static void FixTTOCompanies ()
 
static byte RemapTTOColour (byte tto)
 
static uint RemapTownIndex (uint x)
 
static uint RemapOrderIndex (uint x)
 
static void ReadTTDPatchFlags ()
 
static bool LoadOldTown (LoadgameState *ls, int num)
 
static bool LoadOldOrder (LoadgameState *ls, int num)
 
static bool LoadOldAnimTileList (LoadgameState *ls, int num)
 
static bool LoadOldDepot (LoadgameState *ls, int num)
 
static bool LoadOldGood (LoadgameState *ls, int num)
 
static bool LoadOldStation (LoadgameState *ls, int num)
 
static bool LoadOldIndustry (LoadgameState *ls, int num)
 
static bool LoadOldCompanyYearly (LoadgameState *ls, int num)
 
static bool LoadOldCompanyEconomy (LoadgameState *ls, int num)
 
static bool LoadOldCompany (LoadgameState *ls, int num)
 
static bool LoadOldVehicleUnion (LoadgameState *ls, int num)
 
bool LoadOldVehicle (LoadgameState *ls, int num)
 Load the vehicles of an old style savegame. More...
 
static bool LoadOldSign (LoadgameState *ls, int num)
 
static bool LoadOldEngine (LoadgameState *ls, int num)
 
static bool LoadOldEngineName (LoadgameState *ls, int num)
 
static bool LoadOldSubsidy (LoadgameState *ls, int num)
 
static bool LoadOldGameDifficulty (LoadgameState *ls, int num)
 
static bool LoadOldMapPart1 (LoadgameState *ls, int num)
 
static bool LoadOldMapPart2 (LoadgameState *ls, int num)
 
static bool LoadTTDPatchExtraChunks (LoadgameState *ls, int num)
 
bool LoadTTDMain (LoadgameState *ls)
 
bool LoadTTOMain (LoadgameState *ls)
 

Variables

static bool _read_ttdpatch_flags
 Have we (tried to) read TTDPatch extra flags?
 
static uint16 _old_extra_chunk_nums
 Number of extra TTDPatch chunks.
 
static byte _old_vehicle_multiplier
 TTDPatch vehicle multiplier.
 
static uint8 * _old_map3
 
static StringID_old_vehicle_names
 
static Engine_old_engines
 
TileIndex_animated_tile_list
 The table/list with animated tiles. More...
 
uint _animated_tile_count
 The number of animated tiles in the current state. More...
 
char * _old_name_array
 Location to load the old names to. More...
 
static uint32 _old_town_index
 
static uint16 _old_string_id
 
static uint16 _old_string_id_2
 
static const OldChunks town_chunk []
 
static uint16 _old_order
 
static const OldChunks order_chunk []
 
static const OldChunks depot_chunk []
 
static StationID _current_station_id
 
static uint16 _waiting_acceptance
 
static uint8 _cargo_source
 
static uint8 _cargo_days
 
static const OldChunks goods_chunk []
 
static const OldChunks station_chunk []
 
static const OldChunks industry_chunk []
 
static CompanyID _current_company_id
 
static int32 _old_yearly
 
static const OldChunks _company_yearly_chunk []
 
static const OldChunks _company_economy_chunk []
 
static const OldChunks _company_chunk []
 
static uint32 _old_order_ptr
 
static uint16 _old_next_ptr
 
static VehicleID _current_vehicle_id
 
static const OldChunks vehicle_train_chunk []
 
static const OldChunks vehicle_road_chunk []
 
static const OldChunks vehicle_ship_chunk []
 
static const OldChunks vehicle_air_chunk []
 
static const OldChunks vehicle_effect_chunk []
 
static const OldChunks vehicle_disaster_chunk []
 
static const OldChunks vehicle_empty_chunk []
 
static uint16 _cargo_count
 
static const OldChunks vehicle_chunk []
 
static const OldChunks sign_chunk []
 
static const OldChunks engine_chunk []
 
static const OldChunks subsidy_chunk []
 
static const OldChunks game_difficulty_chunk []
 
TileIndex _cur_tileloop_tile
 
uint16 _disaster_delay
 Delay counter for considering the next disaster. More...
 
byte _trees_tick_ctr
 Determines when to consider building more trees. More...
 
byte _age_cargo_skip_counter
 Skip aging of cargo? Used before savegame version 162.
 
uint8 _old_diff_level
 
uint8 _old_units
 
static const OldChunks main_chunk []
 

Detailed Description

Chunks and fix-ups for TTO/TTD/TTDP savegames.

TTO loader code is based on SVXConverter by Roman Vetter.

Definition in file oldloader_sl.cpp.

Function Documentation

◆ FixOldVehicles()

void FixOldVehicles ( )

Convert the old style vehicles into something that resembles the old new style savegames.

Then AfterLoadGame can handle the rest of the conversion.

Definition at line 174 of file oldloader_sl.cpp.

References CopyFromOldName(), FOR_ALL_VEHICLES, Pool< Titem, Tindex, Tgrowth_step, Tmax_size, Tpool_type, Tcache, Tzero >::PoolItem<&_vehicle_pool >::GetIfValid(), BaseConsist::name, Vehicle::next, Vehicle::spritenum, Vehicle::subtype, BaseVehicle::type, and VEH_EFFECT.

◆ FixTTDDepots()

static void FixTTDDepots ( )
static

Workaround for SVXConverter bug, depots 252-255 could be invalid

Definition at line 110 of file oldloader_sl.cpp.

◆ FixTTOEngines()

static bool FixTTOEngines ( )
static

TTD->TTO remapping of engines; 255 means there is no equivalent. SVXConverter uses (almost) the same table.

TTO->TTD remapping of engines. SVXConverter uses the same table.

Definition at line 355 of file oldloader_sl.cpp.

References Vehicle::engine_type, FOR_ALL_VEHICLES, and lengthof.

◆ LoadOldVehicle()

bool LoadOldVehicle ( LoadgameState ls,
int  num 
)

Load the vehicles of an old style savegame.

So we can set the proper next pointer while loading.

Parameters
lsState (buffer) of the currently loaded game.
numThe number of vehicles to load.
Returns
True iff loading went without problems.

Definition at line 1233 of file oldloader_sl.cpp.

◆ RemapTTOColour()

static byte RemapTTOColour ( byte  tto)
inlinestatic

Lossy remapping of TTO colours to TTD colours. SVXConverter uses the same conversion.

Definition at line 468 of file oldloader_sl.cpp.

Variable Documentation

◆ _animated_tile_count

uint _animated_tile_count

The number of animated tiles in the current state.

Definition at line 22 of file animated_tile.cpp.

Referenced by AddAnimatedTile(), AnimateAnimatedTiles(), DeleteAnimatedTile(), and InitializeAnimatedTiles().

◆ _animated_tile_list

TileIndex* _animated_tile_list

The table/list with animated tiles.

Definition at line 20 of file animated_tile.cpp.

Referenced by AddAnimatedTile(), AnimateAnimatedTiles(), DeleteAnimatedTile(), and InitializeAnimatedTiles().

◆ _company_economy_chunk

const OldChunks _company_economy_chunk[]
static
Initial value:
= {
OCL_SVAR( OC_FILE_I32 | OC_VAR_I64, CompanyEconomyEntry, income ),
OCL_SVAR( OC_FILE_I32 | OC_VAR_I64, CompanyEconomyEntry, expenses ),
OCL_SVAR( OC_INT32, CompanyEconomyEntry, delivered_cargo[NUM_CARGO - 1] ),
OCL_SVAR( OC_INT32, CompanyEconomyEntry, performance_history ),
OCL_SVAR( OC_TTD | OC_FILE_I32 | OC_VAR_I64, CompanyEconomyEntry, company_value ),
}
chunk is valid ONLY for TTD savegames
Definition: oldloader.h:44
Maximal number of cargo types in a game.
Definition: cargo_type.h:66
Statistics about the economy.
Definition: company_base.h:23

Definition at line 892 of file oldloader_sl.cpp.

◆ _company_yearly_chunk

const OldChunks _company_yearly_chunk[]
static
Initial value:
= {
OCL_VAR( OC_INT32, 1, &_old_yearly ),
}

Definition at line 870 of file oldloader_sl.cpp.

◆ _disaster_delay

uint16 _disaster_delay

Delay counter for considering the next disaster.

Definition at line 56 of file disaster_vehicle.cpp.

◆ _old_name_array

char* _old_name_array

Location to load the old names to.

Definition at line 52 of file strings_sl.cpp.

Referenced by InitializeOldNames(), Load_NAME(), and ResetOldNames().

◆ _trees_tick_ctr

byte _trees_tick_ctr

Determines when to consider building more trees.

Definition at line 53 of file tree_cmd.cpp.

◆ depot_chunk

const OldChunks depot_chunk[]
static
Initial value:
= {
OCL_SVAR( OC_TILE, Depot, xy ),
OCL_VAR ( OC_UINT32, 1, &_old_town_index ),
}

Definition at line 664 of file oldloader_sl.cpp.

◆ engine_chunk

const OldChunks engine_chunk[]
static
Initial value:
= {
OCL_SVAR( OC_UINT16, Engine, company_avail ),
OCL_SVAR( OC_FILE_U16 | OC_VAR_U32, Engine, intro_date ),
OCL_SVAR( OC_FILE_U16 | OC_VAR_U32, 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_NULL( 1 ),
OCL_SVAR( OC_UINT8, Engine, flags ),
OCL_NULL( 1 ),
OCL_SVAR( OC_UINT8, Engine, preview_wait ),
OCL_CNULL( OC_TTD, 2 ),
}
WindowFlags flags
Window flags.
Definition: window_gui.h:305
chunk is valid ONLY for TTD savegames
Definition: oldloader.h:44

Definition at line 1395 of file oldloader_sl.cpp.

◆ game_difficulty_chunk

const OldChunks game_difficulty_chunk[]
static
Initial value:
= {
OCL_SVAR( OC_FILE_U16 | OC_VAR_U8, DifficultySettings, max_no_competitors ),
OCL_NULL( 2),
OCL_SVAR( OC_FILE_U16 | OC_VAR_U8, DifficultySettings, number_towns ),
OCL_SVAR( OC_FILE_U16 | OC_VAR_U8, DifficultySettings, industry_density ),
OCL_SVAR( OC_FILE_U16 | OC_VAR_U32, DifficultySettings, max_loan ),
OCL_SVAR( OC_FILE_U16 | OC_VAR_U8, DifficultySettings, initial_interest ),
OCL_SVAR( OC_FILE_U16 | OC_VAR_U8, DifficultySettings, vehicle_costs ),
OCL_SVAR( OC_FILE_U16 | OC_VAR_U8, DifficultySettings, competitor_speed ),
OCL_NULL( 2),
OCL_SVAR( OC_FILE_U16 | OC_VAR_U8, DifficultySettings, vehicle_breakdowns ),
OCL_SVAR( OC_FILE_U16 | OC_VAR_U8, DifficultySettings, subsidy_multiplier ),
OCL_SVAR( OC_FILE_U16 | OC_VAR_U8, DifficultySettings, construction_cost ),
OCL_SVAR( OC_FILE_U16 | OC_VAR_U8, DifficultySettings, terrain_type ),
OCL_SVAR( OC_FILE_U16 | OC_VAR_U8, DifficultySettings, quantity_sea_lakes ),
OCL_SVAR( OC_FILE_U16 | OC_VAR_U8, DifficultySettings, economy ),
OCL_SVAR( OC_FILE_U16 | OC_VAR_U8, DifficultySettings, line_reverse_mode ),
OCL_SVAR( OC_FILE_U16 | OC_VAR_U8, DifficultySettings, disasters ),
}
Settings related to the difficulty of the game.
Definition: settings_type.h:55

Definition at line 1448 of file oldloader_sl.cpp.

◆ goods_chunk

const OldChunks goods_chunk[]
static
Initial value:
= {
OCL_VAR ( OC_UINT16, 1, &_waiting_acceptance ),
OCL_SVAR( OC_UINT8, GoodsEntry, time_since_pickup ),
OCL_SVAR( OC_UINT8, GoodsEntry, rating ),
OCL_VAR ( OC_UINT8, 1, &_cargo_source ),
OCL_VAR ( OC_UINT8, 1, &_cargo_days ),
OCL_SVAR( OC_UINT8, GoodsEntry, last_speed ),
OCL_SVAR( OC_UINT8, GoodsEntry, last_age ),
}
Stores station stats for a single cargo.
Definition: station_base.h:170

Definition at line 692 of file oldloader_sl.cpp.

◆ order_chunk

const OldChunks order_chunk[]
static
Initial value:
= {
OCL_VAR ( OC_UINT16, 1, &_old_order ),
}

Definition at line 617 of file oldloader_sl.cpp.

◆ sign_chunk

const OldChunks sign_chunk[]
static
Initial value:
= {
OCL_VAR ( OC_UINT16, 1, &_old_string_id ),
OCL_SVAR( OC_FILE_U16 | OC_VAR_I32, Sign, x ),
OCL_SVAR( OC_FILE_U16 | OC_VAR_I32, Sign, y ),
OCL_SVAR( OC_FILE_U16 | OC_VAR_I8, Sign, z ),
OCL_NULL( 6 ),
}

Definition at line 1365 of file oldloader_sl.cpp.

◆ subsidy_chunk

const OldChunks subsidy_chunk[]
static
Initial value:
= {
OCL_SVAR( OC_UINT8, Subsidy, cargo_type ),
OCL_SVAR( OC_UINT8, Subsidy, remaining ),
OCL_SVAR( OC_FILE_U8 | OC_VAR_U16, Subsidy, src ),
OCL_SVAR( OC_FILE_U8 | OC_VAR_U16, Subsidy, dst ),
}
Struct about subsidies, offered and awarded.
Definition: subsidy_base.h:24

Definition at line 1431 of file oldloader_sl.cpp.

◆ vehicle_air_chunk

const OldChunks vehicle_air_chunk[]
static
Initial value:
= {
OCL_SVAR( OC_UINT8, Aircraft, pos ),
OCL_SVAR( OC_FILE_U8 | OC_VAR_U16, Aircraft, targetairport ),
OCL_SVAR( OC_UINT16, Aircraft, crashed_counter ),
OCL_SVAR( OC_UINT8, Aircraft, state ),
OCL_NULL( 5 ),
}
Aircraft, helicopters, rotors and their shadows belong to this class.
Definition: aircraft.h:74

Definition at line 1072 of file oldloader_sl.cpp.

◆ vehicle_disaster_chunk

const OldChunks vehicle_disaster_chunk[]
static
Initial value:
= {
OCL_SVAR( OC_UINT16, DisasterVehicle, image_override ),
OCL_SVAR( OC_UINT16, DisasterVehicle, big_ufo_destroyer_target ),
OCL_NULL( 6 ),
}
Disasters, like submarines, skyrangers and their shadows, belong to this class.

Definition at line 1092 of file oldloader_sl.cpp.

◆ vehicle_effect_chunk

const OldChunks vehicle_effect_chunk[]
static
Initial value:
= {
OCL_SVAR( OC_UINT16, EffectVehicle, animation_state ),
OCL_SVAR( OC_UINT8, EffectVehicle, animation_substate ),
OCL_NULL( 7 ),
}
A special vehicle is one of the following:

Definition at line 1083 of file oldloader_sl.cpp.

◆ vehicle_empty_chunk

const OldChunks vehicle_empty_chunk[]
static
Initial value:
= {
OCL_NULL( 10 ),
}

Definition at line 1101 of file oldloader_sl.cpp.

◆ vehicle_road_chunk

const OldChunks vehicle_road_chunk[]
static
Initial value:
= {
OCL_SVAR( OC_UINT8, RoadVehicle, state ),
OCL_SVAR( OC_UINT8, RoadVehicle, frame ),
OCL_SVAR( OC_UINT16, RoadVehicle, blocked_ctr ),
OCL_SVAR( OC_UINT8, RoadVehicle, overtaking ),
OCL_SVAR( OC_UINT8, RoadVehicle, overtaking_ctr ),
OCL_SVAR( OC_UINT16, RoadVehicle, crashed_ctr ),
OCL_SVAR( OC_UINT8, RoadVehicle, reverse_ctr ),
OCL_NULL( 1 ),
}
Buses, trucks and trams belong to this class.
Definition: roadveh.h:88

Definition at line 1050 of file oldloader_sl.cpp.

◆ vehicle_ship_chunk

const OldChunks vehicle_ship_chunk[]
static
Initial value:
= {
OCL_SVAR( OC_UINT8, Ship, state ),
OCL_NULL( 9 ),
}
All ships have this type.
Definition: ship.h:24

Definition at line 1064 of file oldloader_sl.cpp.

◆ vehicle_train_chunk

const OldChunks vehicle_train_chunk[]
static
Initial value:
= {
OCL_SVAR( OC_UINT8, Train, track ),
OCL_SVAR( OC_UINT8, Train, force_proceed ),
OCL_SVAR( OC_UINT16, Train, crash_anim_pos ),
OCL_SVAR( OC_UINT8, Train, railtype ),
OCL_NULL( 5 ),
}
&#39;Train&#39; is either a loco or a wagon.
Definition: train.h:88

Definition at line 1039 of file oldloader_sl.cpp.