Functions related to world/map generation. More...

#include "company_type.h"
#include <thread>

Data Structures
struct	GenWorldInfo
	Properties of current genworld process. More...

Typedefs
typedef void	GWDoneProc()
	Procedure called when the genworld process finishes.

typedef void	GWAbortProc()
	Called when genworld is aborted.

Enumerations
enum	LandscapeGenerator { LG_ORIGINAL = 0 , LG_TERRAGENESIS = 1 }
	Constants related to world generation. More...

enum	GenWorldMode { GWM_NEWGAME = 0 , GWM_EMPTY = 1 , GWM_RANDOM = 2 , GWM_HEIGHTMAP = 3 }
	Modes for GenerateWorld. More...

enum	TgenSmoothness { TGEN_SMOOTHNESS_BEGIN , TGEN_SMOOTHNESS_VERY_SMOOTH = TGEN_SMOOTHNESS_BEGIN , TGEN_SMOOTHNESS_SMOOTH , TGEN_SMOOTHNESS_ROUGH , TGEN_SMOOTHNESS_VERY_ROUGH , TGEN_SMOOTHNESS_END }
	Smoothness presets. More...

enum	GenWorldProgress { GWP_MAP_INIT , GWP_LANDSCAPE , GWP_RIVER , GWP_ROUGH_ROCKY , GWP_TOWN , GWP_INDUSTRY , GWP_OBJECT , GWP_TREE , GWP_GAME_INIT , GWP_RUNTILELOOP , GWP_RUNSCRIPT , GWP_GAME_START , GWP_CLASS_COUNT }
	Current stage of world generation process. More...

Functions
void	GenerateWorldSetCallback (GWDoneProc *proc)
	Set here the function, if any, that you want to be called when landscape generation is done.

void	GenerateWorldSetAbortCallback (GWAbortProc *proc)
	Set here the function, if any, that you want to be called when landscape generation is aborted.

void	GenerateWorld (GenWorldMode mode, uint size_x, uint size_y, bool reset_settings=true)
	Generate a world.

void	AbortGeneratingWorld ()
	Initializes the abortion process.

bool	IsGeneratingWorldAborted ()
	Is the generation being aborted?

void	HandleGeneratingWorldAbortion ()
	Really handle the abortion, i.e.

void	LoadTownData ()
	Load town data from _file_to_saveload, place towns at the appropriate locations, and expand them to their target populations.

void	SetNewLandscapeType (uint8_t landscape)
	Changes landscape type and sets genworld window dirty.

void	SetGeneratingWorldProgress (GenWorldProgress cls, uint total)
	Set the total of a stage of the world generation.

void	IncreaseGeneratingWorldProgress (GenWorldProgress cls)
	Increases the current stage of the world generation with one.

void	PrepareGenerateWorldProgress ()
	Initializes the progress counters to the starting point.

void	ShowGenerateWorldProgress ()
	Show the window where a user can follow the process of the map generation.

void	StartNewGameWithoutGUI (uint32_t seed)
	Start a normal game without the GUI.

void	ShowCreateScenario ()
	Show the window to create a scenario.

void	StartScenarioEditor ()
	Start with a scenario editor.

Variables
static const uint32_t	GENERATE_NEW_SEED = UINT32_MAX
	Create a new random seed.

static const uint	CUSTOM_TERRAIN_TYPE_NUMBER_DIFFICULTY = 5
	Value for custom terrain type in difficulty settings.

static const uint	CUSTOM_SEA_LEVEL_NUMBER_DIFFICULTY = 4
	Value for custom sea level in difficulty settings.

static const uint	CUSTOM_SEA_LEVEL_MIN_PERCENTAGE = 1
	Minimum percentage a user can specify for custom sea level.

static const uint	CUSTOM_SEA_LEVEL_MAX_PERCENTAGE = 90
	Maximum percentage a user can specify for custom sea level.

static const uint	MAP_HEIGHT_LIMIT_AUTO_MINIMUM = 30
	When map height limit is auto, make this the lowest possible map height limit.

static const uint	MAP_HEIGHT_LIMIT_AUTO_CEILING_ROOM = 15
	When map height limit is auto, the map height limit will be the higest peak plus this value.

bool	_generating_world
	Whether we are generating the map or not.

Detailed Description

Functions related to world/map generation.

Definition in file genworld.h.

Typedef Documentation

◆ GWAbortProc

typedef void GWAbortProc()

Called when genworld is aborted.

Definition at line 55 of file genworld.h.

◆ GWDoneProc

typedef void GWDoneProc()

Procedure called when the genworld process finishes.

Definition at line 54 of file genworld.h.

Enumeration Type Documentation

◆ GenWorldMode

enum GenWorldMode

Modes for GenerateWorld.

Enumerator
GWM_NEWGAME	Generate a map for a new game.
GWM_EMPTY	Generate an empty map (sea-level)
GWM_RANDOM	Generate a random map for SE.
GWM_HEIGHTMAP	Generate a newgame from a heightmap.

Definition at line 27 of file genworld.h.

◆ GenWorldProgress

enum GenWorldProgress

Current stage of world generation process.

Enumerator
GWP_MAP_INIT	Initialize/allocate the map, start economy.
GWP_LANDSCAPE	Create the landscape.
GWP_RIVER	Create the rivers.
GWP_ROUGH_ROCKY	Make rough and rocky areas.
GWP_TOWN	Generate towns.
GWP_INDUSTRY	Generate industries.
GWP_OBJECT	Generate objects (radio tower, light houses)
GWP_TREE	Generate trees.
GWP_GAME_INIT	Initialize the game.
GWP_RUNTILELOOP	Runs the tile loop 1280 times to make snow etc.
GWP_RUNSCRIPT	Runs the game script at most 2500 times, or when ever the script sleeps.
GWP_GAME_START	Really prepare to start the game.

Definition at line 69 of file genworld.h.

◆ LandscapeGenerator

enum LandscapeGenerator

Constants related to world generation.

Enumerator
LG_ORIGINAL	The original landscape generator.
LG_TERRAGENESIS	TerraGenesis Perlin landscape generator.

Definition at line 17 of file genworld.h.

◆ TgenSmoothness

enum TgenSmoothness

Smoothness presets.

Enumerator
TGEN_SMOOTHNESS_BEGIN	First smoothness value.
TGEN_SMOOTHNESS_VERY_SMOOTH	Smoothness preset 'very smooth'.
TGEN_SMOOTHNESS_SMOOTH	Smoothness preset 'smooth'.
TGEN_SMOOTHNESS_ROUGH	Smoothness preset 'rough'.
TGEN_SMOOTHNESS_VERY_ROUGH	Smoothness preset 'very rough'.
TGEN_SMOOTHNESS_END	Used to iterate.

Definition at line 35 of file genworld.h.

Function Documentation

◆ AbortGeneratingWorld()

void AbortGeneratingWorld ( )

Initializes the abortion process.

Definition at line 252 of file genworld.cpp.

References _gw, and GenWorldInfo::abort.

◆ GenerateWorld()

void GenerateWorld	(	GenWorldMode	mode,
		uint	size_x,
		uint	size_y,
		bool	reset_settings
	)

Generate a world.

Parameters

mode	The mode of world generation (see GenWorldMode).
size_x	The X-size of the map.
size_y	The Y-size of the map.
reset_settings	Whether to reset the game configuration (used for restart)

Definition at line 286 of file genworld.cpp.

References _GenerateWorld(), _gw, _local_company, _settings_game, GenWorldInfo::abort, GenWorldInfo::abortp, CloseAllNonVitalWindows(), COMPANY_SPECTATOR, GameSettings::construction, GameSettings::game_creation, GENERATE_NEW_SEED, GameCreationSettings::generation_seed, GetEstimationTGPMapHeight(), GfxLoadSprites(), GWM_EMPTY, GWM_HEIGHTMAP, HasModalProgress(), GameCreationSettings::heightmap_height, HideVitalWindows(), HT_NONE, InitializeBuildingCounts(), GameCreationSettings::land_generator, GenWorldInfo::lc, LG_TERRAGENESIS, LoadStringWidthTable(), ConstructionSettings::map_height_limit, MAP_HEIGHT_LIMIT_AUTO_CEILING_ROOM, MAP_HEIGHT_LIMIT_AUTO_MINIMUM, MAX_MAP_HEIGHT_LIMIT, GenWorldInfo::mode, PrepareGenerateWorldProgress(), ResetWindowSystem(), ScrollMainWindowToTile(), GameCreationSettings::se_flat_world_height, SetLocalCompany(), SetModalProgress(), SetObjectToPlace(), SetupColoursAndInitialWindow(), ShowGenerateWorldProgress(), GenWorldInfo::size_x, GenWorldInfo::size_y, Map::SizeX(), Map::SizeY(), TileXY(), UnshowCriticalError(), and WC_MAIN_WINDOW.

Referenced by LoadIntroGame(), and openttd_main().

◆ GenerateWorldSetAbortCallback()

void GenerateWorldSetAbortCallback ( GWAbortProc * proc )

Set here the function, if any, that you want to be called when landscape generation is aborted.

Parameters

proc	callback procedure

Definition at line 244 of file genworld.cpp.

References _gw, and GenWorldInfo::abortp.

Referenced by GenerateTerrainPerlin().

◆ GenerateWorldSetCallback()

void GenerateWorldSetCallback ( GWDoneProc * proc )

Set here the function, if any, that you want to be called when landscape generation is done.

Parameters

proc	callback procedure

Definition at line 234 of file genworld.cpp.

References _gw, and GenWorldInfo::proc.

◆ HandleGeneratingWorldAbortion()

void HandleGeneratingWorldAbortion ( )

Really handle the abortion, i.e.

clean up some of the mess

Definition at line 269 of file genworld.cpp.

References _gw, _switch_mode, GenWorldInfo::abortp, SM_EDITOR, and SM_MENU.

Referenced by _GenerateWorld().

◆ IncreaseGeneratingWorldProgress()

void IncreaseGeneratingWorldProgress ( GenWorldProgress cls )

Increases the current stage of the world generation with one.

Parameters

cls	the current class we are in.

Warning: this function isn't clever. Don't go from class 4 to 3. Go upwards, always. Also, progress works if total is zero, total works if progress is zero.

Definition at line 1547 of file genworld_gui.cpp.

Referenced by _GenerateWorld(), CreateRivers(), GenerateLandscape(), GenerateTerrainPerlin(), GenerateTowns(), PlaceInitialIndustry(), PlaceTreeGroups(), and PlaceTreesRandomly().

◆ IsGeneratingWorldAborted()

bool IsGeneratingWorldAborted ( )

Is the generation being aborted?

Returns: the 'aborted' status

Definition at line 261 of file genworld.cpp.

References _gw, and GenWorldInfo::abort.

◆ LoadTownData()

void LoadTownData ( )

Load town data from _file_to_saveload, place towns at the appropriate locations, and expand them to their target populations.

Definition at line 379 of file genworld.cpp.

References _file_to_saveload, _settings_game, Town::cache, CircularTileSearch(), FioFOpenFile(), GameSettings::game_creation, Pool< Titem, Tindex, Tgrowth_step, Tmax_size, Tpool_type, Tcache, Tzero >::PoolItem<&_town_pool >::Get(), HEIGHTMAP_DIR, GameCreationSettings::heightmap_rotation, HM_CLOCKWISE, HM_COUNTER_CLOCKWISE, Pool< Titem, Tindex, Tgrowth_step, Tmax_size, Tpool_type, Tcache, Tzero >::PoolItem< Tpool >::index, INVALID_STRING_ID, ExternalTownData::is_city, Map::MaxX(), Map::MaxY(), ExternalTownData::name, FileToSaveLoad::name, TownCache::num_houses, ExternalTownData::population, TownCache::population, SetDParam(), SetDParamStr(), ShowErrorMessage(), TileXY(), ExternalTownData::town_id, TryFoundTownNearby(), WL_ERROR, WL_WARNING, ExternalTownData::x_proportion, and ExternalTownData::y_proportion.

Referenced by SaveLoadWindow::OnClick().

◆ PrepareGenerateWorldProgress()

void PrepareGenerateWorldProgress ( )

Initializes the progress counters to the starting point.

Definition at line 1453 of file genworld_gui.cpp.

Referenced by GenerateWorld().

◆ SetGeneratingWorldProgress()

void SetGeneratingWorldProgress	(	GenWorldProgress	cls,
		uint	total
	)

Set the total of a stage of the world generation.

Parameters

cls	the current class we are in.
total	Set the total expected items for this class.

Warning: this function isn't clever. Don't go from class 4 to 3. Go upwards, always. Also, progress works if total is zero, total works if progress is zero.

Definition at line 1533 of file genworld_gui.cpp.

Referenced by _GenerateWorld(), CreateRivers(), GenerateIndustries(), GenerateLandscape(), GenerateTowns(), and GenerateTrees().

◆ SetNewLandscapeType()

void SetNewLandscapeType ( uint8_t landscape )

Changes landscape type and sets genworld window dirty.

Parameters

landscape new landscape type

Definition at line 65 of file genworld_gui.cpp.

References _settings_newgame, GameSettings::game_creation, InvalidateWindowClassesData(), GameCreationSettings::landscape, WC_GENERATE_LANDSCAPE, and WC_SELECT_GAME.

Referenced by GenerateLandscapeWindow::OnClick(), CreateScenarioWindow::OnClick(), and SelectGameWindow::OnClick().

◆ ShowCreateScenario()

void ShowCreateScenario ( )

Show the window to create a scenario.

Definition at line 1321 of file genworld_gui.cpp.

References CloseWindowByClass(), GLWM_SCENARIO, and WC_GENERATE_LANDSCAPE.

Referenced by ScenarioEditorLandscapeGenerationWindow::OnClick().

◆ ShowGenerateWorldProgress()

void ShowGenerateWorldProgress ( )

Show the window where a user can follow the process of the map generation.

Definition at line 1465 of file genworld_gui.cpp.

References BringWindowToFrontById(), and WC_MODAL_PROGRESS.

Referenced by GenerateWorld().

◆ StartNewGameWithoutGUI()

void StartNewGameWithoutGUI ( uint32_t seed )

Start a normal game without the GUI.

Parameters

seed	The seed of the new game.

Definition at line 1066 of file genworld_gui.cpp.

References _settings_newgame, GameSettings::game_creation, GameCreationSettings::generation_seed, and GLWM_GENERATE.

Referenced by VideoDriver_Dedicated::MainLoop(), SelectGameWindow::OnClick(), and NetworkStartServerWindow::OnClick().

◆ StartScenarioEditor()

void StartScenarioEditor ( )

Start with a scenario editor.

Definition at line 1057 of file genworld_gui.cpp.

References GLWM_SCENARIO.

Referenced by SelectGameWindow::OnClick().

Variable Documentation

◆ _generating_world

bool _generating_world

extern

◆ CUSTOM_SEA_LEVEL_MAX_PERCENTAGE

const uint CUSTOM_SEA_LEVEL_MAX_PERCENTAGE = 90

static

Maximum percentage a user can specify for custom sea level.

Definition at line 49 of file genworld.h.

Referenced by GenerateLandscapeWindow::OnQueryTextFinished(), and GenerateLandscapeWindow::UpdateWidgetSize().

◆ CUSTOM_SEA_LEVEL_MIN_PERCENTAGE

const uint CUSTOM_SEA_LEVEL_MIN_PERCENTAGE = 1

static

Minimum percentage a user can specify for custom sea level.

Definition at line 48 of file genworld.h.

Referenced by GenerateLandscapeWindow::OnQueryTextFinished(), and ValidateSettings().

◆ CUSTOM_SEA_LEVEL_NUMBER_DIFFICULTY

const uint CUSTOM_SEA_LEVEL_NUMBER_DIFFICULTY = 4

static

Value for custom sea level in difficulty settings.

Definition at line 47 of file genworld.h.

Referenced by GenerateLandscape(), HeightMapNormalize(), GenerateLandscapeWindow::OnClick(), GenerateLandscapeWindow::OnDropdownSelect(), GenerateLandscapeWindow::OnInvalidateData(), GenerateLandscapeWindow::SetStringParameters(), and ValidateSettings().

◆ CUSTOM_TERRAIN_TYPE_NUMBER_DIFFICULTY

const uint CUSTOM_TERRAIN_TYPE_NUMBER_DIFFICULTY = 5

static

Value for custom terrain type in difficulty settings.

Definition at line 45 of file genworld.h.

Referenced by GenerateLandscapeWindow::OnDropdownSelect(), GenerateLandscapeWindow::OnInvalidateData(), GenerateLandscapeWindow::SetStringParameters(), and TGPGetMaxHeight().

◆ GENERATE_NEW_SEED

const uint32_t GENERATE_NEW_SEED = UINT32_MAX

static

Create a new random seed.

Definition at line 24 of file genworld.h.

Referenced by GenerateWorld(), VideoDriver_Dedicated::MainLoop(), NetworkRestartMap(), SelectGameWindow::OnClick(), NetworkStartServerWindow::OnClick(), and openttd_main().

◆ MAP_HEIGHT_LIMIT_AUTO_CEILING_ROOM

const uint MAP_HEIGHT_LIMIT_AUTO_CEILING_ROOM = 15

static

When map height limit is auto, the map height limit will be the higest peak plus this value.

Definition at line 52 of file genworld.h.

Referenced by GenerateWorld().

◆ MAP_HEIGHT_LIMIT_AUTO_MINIMUM

const uint MAP_HEIGHT_LIMIT_AUTO_MINIMUM = 30

static

When map height limit is auto, make this the lowest possible map height limit.

Definition at line 51 of file genworld.h.

Referenced by GenerateWorld(), and GenerateLandscapeWindow::OnQueryTextFinished().

Data Structures

Typedefs

Enumerations

Functions

Variables

Detailed Description

Typedef Documentation

◆ GWAbortProc

◆ GWDoneProc

Enumeration Type Documentation

◆ GenWorldMode

◆ GenWorldProgress

◆ LandscapeGenerator

◆ TgenSmoothness

Function Documentation

◆ AbortGeneratingWorld()

◆ GenerateWorld()

◆ GenerateWorldSetAbortCallback()

◆ GenerateWorldSetCallback()

◆ HandleGeneratingWorldAbortion()

◆ IncreaseGeneratingWorldProgress()

◆ IsGeneratingWorldAborted()

◆ LoadTownData()

◆ PrepareGenerateWorldProgress()

◆ SetGeneratingWorldProgress()

◆ SetNewLandscapeType()

◆ ShowCreateScenario()

◆ ShowGenerateWorldProgress()

◆ StartNewGameWithoutGUI()

◆ StartScenarioEditor()

Variable Documentation

◆ _generating_world

◆ CUSTOM_SEA_LEVEL_MAX_PERCENTAGE

◆ CUSTOM_SEA_LEVEL_MIN_PERCENTAGE

◆ CUSTOM_SEA_LEVEL_NUMBER_DIFFICULTY

◆ CUSTOM_TERRAIN_TYPE_NUMBER_DIFFICULTY

◆ GENERATE_NEW_SEED

◆ MAP_HEIGHT_LIMIT_AUTO_CEILING_ROOM

◆ MAP_HEIGHT_LIMIT_AUTO_MINIMUM