Class that handles all tile related functions. More...

Inheritance diagram for GSTile:

Public Types
enum	ErrorMessages { ERR_TILE_BASE , ERR_TILE_TOO_HIGH , ERR_TILE_TOO_LOW , ERR_AREA_ALREADY_FLAT , ERR_EXCAVATION_WOULD_DAMAGE , ERR_LIMIT_REACHED }
	Error messages related to modifying tiles. More...

enum	Corner { CORNER_W , CORNER_S , CORNER_E , CORNER_N , CORNER_INVALID }
	Enumeration for corners of tiles. More...

enum	Slope { SLOPE_FLAT , SLOPE_W , SLOPE_S , SLOPE_E , SLOPE_N , SLOPE_STEEP , SLOPE_NW , SLOPE_SW , SLOPE_SE , SLOPE_NE , SLOPE_EW , SLOPE_NS , SLOPE_ELEVATED , SLOPE_NWS , SLOPE_WSE , SLOPE_SEN , SLOPE_ENW , SLOPE_STEEP_W , SLOPE_STEEP_S , SLOPE_STEEP_E , SLOPE_STEEP_N , SLOPE_INVALID }
	Enumeration for the slope-type. More...

enum	TransportType { TRANSPORT_RAIL , TRANSPORT_ROAD , TRANSPORT_WATER , TRANSPORT_AIR , TRANSPORT_INVALID }
	The different transport types a tile can have. More...

enum	BuildType { BT_FOUNDATION , BT_TERRAFORM , BT_BUILD_TREES , BT_CLEAR_GRASS , BT_CLEAR_ROUGH , BT_CLEAR_ROCKY , BT_CLEAR_FIELDS , BT_CLEAR_HOUSE , BT_CLEAR_WATER }
	Get the base cost for building/clearing several things. More...

enum	TerrainType { TERRAIN_NORMAL , TERRAIN_DESERT , TERRAIN_RAINFOREST , TERRAIN_SNOW }
	The types of terrain a tile can have. More...

Static Public Member Functions
static bool	IsBuildable (TileIndex tile)
	Check if this tile is buildable, i.e. More...

static bool	IsBuildableRectangle (TileIndex tile, int width, int height)
	Check if this tile is buildable in a rectangle around a tile, with the entry in the list as top-left. More...

static bool	IsSeaTile (TileIndex tile)
	Checks whether the given tile is actually a sea tile. More...

static bool	IsRiverTile (TileIndex tile)
	Checks whether the given tile is actually a river tile. More...

static bool	IsWaterTile (TileIndex tile)
	Checks whether the given tile is actually a water tile. More...

static bool	IsCoastTile (TileIndex tile)
	Checks whether the given tile is actually a coast tile. More...

static bool	IsStationTile (TileIndex tile)
	Checks whether the given tile is a station tile of any station. More...

static bool	IsSteepSlope (Slope slope)
	Check if a tile has a steep slope. More...

static bool	IsHalftileSlope (Slope slope)
	Check if a tile has a halftile slope. More...

static bool	HasTreeOnTile (TileIndex tile)
	Check if the tile has any tree on it. More...

static bool	IsFarmTile (TileIndex tile)
	Check if the tile is a farmland tile. More...

static bool	IsRockTile (TileIndex tile)
	Check if the tile is a rock tile. More...

static bool	IsRoughTile (TileIndex tile)
	Check if the tile is a rough tile. More...

static bool	IsSnowTile (TileIndex tile)
	Check if the tile without buildings or infrastructure is a snow tile. More...

static bool	IsDesertTile (TileIndex tile)
	Check if the tile without buildings or infrastructure is a desert tile. More...

static TerrainType	GetTerrainType (TileIndex tile)
	Get the type of terrain regardless of buildings or infrastructure. More...

static Slope	GetSlope (TileIndex tile)
	Get the slope of a tile. More...

static Slope	GetComplementSlope (Slope slope)
	Get the complement of the slope. More...

static int	GetMinHeight (TileIndex tile)
	Get the minimal height on a tile. More...

static int	GetMaxHeight (TileIndex tile)
	Get the maximal height on a tile. More...

static int	GetCornerHeight (TileIndex tile, Corner corner)
	Get the height of a certain corner of a tile. More...

static GSCompany::CompanyID	GetOwner (TileIndex tile)
	Get the owner of the tile. More...

static bool	HasTransportType (TileIndex tile, TransportType transport_type)
	Checks whether the given tile contains parts suitable for the given TransportType. More...

static int	GetCargoAcceptance (TileIndex tile, CargoID cargo_type, int width, int height, int radius)
	Check how much cargo this tile accepts. More...

static int	GetCargoProduction (TileIndex tile, CargoID cargo_type, int width, int height, int radius)
	Checks how many producers in the radius produces this cargo. More...

static int	GetDistanceManhattanToTile (TileIndex tile_from, TileIndex tile_to)
	Get the manhattan distance from the tile to the tile. More...

static int	GetDistanceSquareToTile (TileIndex tile_from, TileIndex tile_to)
	Get the square distance from the tile to the tile. More...

static bool	RaiseTile (TileIndex tile, Slope slope)
	Raise the given corners of the tile. More...

static bool	LowerTile (TileIndex tile, Slope slope)
	Lower the given corners of the tile. More...

static bool	LevelTiles (TileIndex start_tile, TileIndex end_tile)
	Level all tiles in the rectangle between start_tile and end_tile so they are at the same height. More...

static bool	DemolishTile (TileIndex tile)
	Destroy everything on the given tile. More...

static bool	PlantTree (TileIndex tile)
	Create a random tree on a tile. More...

static bool	PlantTreeRectangle (TileIndex tile, int width, int height)
	Create a random tree on a rectangle of tiles. More...

static bool	IsWithinTownInfluence (TileIndex tile, TownID town_id)
	Find out if this tile is within the rating influence of a town. More...

static TownID	GetTownAuthority (TileIndex tile)
	Find the town which has authority for the tile. More...

static TownID	GetClosestTown (TileIndex tile)
	Find the town that is closest to a tile. More...

static Money	GetBuildCost (BuildType build_type)
	Get the baseprice of building/clearing various tile-related things. More...

Detailed Description

Class that handles all tile related functions.

Member Enumeration Documentation

◆ BuildType

enum GSTile::BuildType

Get the base cost for building/clearing several things.

Enumerator
BT_FOUNDATION	Build a foundation under something.
BT_TERRAFORM	Terraform.
BT_BUILD_TREES	Build trees.
BT_CLEAR_GRASS	Clear a tile with just grass.
BT_CLEAR_ROUGH	Clear a rough tile.
BT_CLEAR_ROCKY	Clear a tile with rocks.
BT_CLEAR_FIELDS	Clear a tile with farm fields.
BT_CLEAR_HOUSE	Clear a tile with a house.
BT_CLEAR_WATER	Clear a tile with either river or sea.

◆ Corner

enum GSTile::Corner

Enumeration for corners of tiles.

Enumerator
CORNER_W	West corner.
CORNER_S	South corner.
CORNER_E	East corner.
CORNER_N	North corner.
CORNER_INVALID	An invalid corner.

◆ ErrorMessages

enum GSTile::ErrorMessages

Error messages related to modifying tiles.

See also: ScriptErrorType

Enumerator
ERR_TILE_BASE	Base for tile related errors.
ERR_TILE_TOO_HIGH	Tile can't be raised any higher.
ERR_TILE_TOO_LOW	Tile can't be lowered any lower.
ERR_AREA_ALREADY_FLAT	The area was already flat.
ERR_EXCAVATION_WOULD_DAMAGE	There is a tunnel underneath.
ERR_LIMIT_REACHED	Reached the limit for terraforming/clearing/planting.

◆ Slope

enum GSTile::Slope

Enumeration for the slope-type.

This enumeration use the chars N, E, S, W corresponding the direction North, East, South and West. The top corner of a tile is the north-part of the tile.

Enumerator
SLOPE_FLAT	A flat tile.
SLOPE_W	The west corner of the tile is raised.
SLOPE_S	The south corner of the tile is raised.
SLOPE_E	The east corner of the tile is raised.
SLOPE_N	The north corner of the tile is raised.
SLOPE_STEEP	Indicates the slope is steep (The corner opposite of the not-raised corner is raised two times)
SLOPE_NW	North and west corner are raised.
SLOPE_SW	South and west corner are raised.
SLOPE_SE	South and east corner are raised.
SLOPE_NE	North and east corner are raised.
SLOPE_EW	East and west corner are raised.
SLOPE_NS	North and south corner are raised.
SLOPE_ELEVATED	Bit mask containing all 'simple' slopes. Does not appear as a slope.
SLOPE_NWS	North, west and south corner are raised.
SLOPE_WSE	West, south and east corner are raised.
SLOPE_SEN	South, east and north corner are raised.
SLOPE_ENW	East, north and west corner are raised.
SLOPE_STEEP_W	A steep slope falling to east (from west)
SLOPE_STEEP_S	A steep slope falling to north (from south)
SLOPE_STEEP_E	A steep slope falling to west (from east)
SLOPE_STEEP_N	A steep slope falling to south (from north)
SLOPE_INVALID	An invalid slope.

◆ TerrainType

enum GSTile::TerrainType

The types of terrain a tile can have.

Note: When a desert or rainforest tile are changed, their terrain type will remain the same. In other words, a sea tile can be of the desert terrain type.; The snow terrain type can change to the normal terrain type and vice versa based on landscaping or variable snow lines from NewGRFs.

Enumerator
TERRAIN_NORMAL	A normal tile (default); not desert, rainforest or snow.
TERRAIN_DESERT	A tile in the desert (manually set in in scenarios, below certain height and certain distance from water in random games).
TERRAIN_RAINFOREST	A tile in the rainforest (manually set in scenarios, certain distance away from deserts in random games),.
TERRAIN_SNOW	A tile on or above the snowline level.

◆ TransportType

enum GSTile::TransportType

The different transport types a tile can have.

Enumerator
TRANSPORT_RAIL	Tile with rail.
TRANSPORT_ROAD	Tile with road.
TRANSPORT_WATER	Tile with navigable waterways.
TRANSPORT_AIR	Tile with airport.
TRANSPORT_INVALID	Tile without any transport type.

Member Function Documentation

◆ DemolishTile()

static bool GSTile::DemolishTile ( TileIndex tile )

static

Destroy everything on the given tile.

Parameters

tile	The tile to demolish.

Precondition: GSMap::IsValidTile(tile).

Exceptions

GSError::ERR_AREA_NOT_CLEAR

Returns: True if and only if the tile was demolished.

◆ GetBuildCost()

static Money GSTile::GetBuildCost ( BuildType build_type )

static

Get the baseprice of building/clearing various tile-related things.

Parameters

build_type the type to build

Returns: The baseprice of building or removing the given object.

◆ GetCargoAcceptance()

static int GSTile::GetCargoAcceptance	(	TileIndex	tile,
		CargoID	cargo_type,
		int	width,
		int	height,
		int	radius
	)

static

Check how much cargo this tile accepts.

It creates a radius around the tile, and adds up all acceptance of this cargo.

Parameters

tile	The tile to check on.
cargo_type	The cargo to check the acceptance of.
width	The width of the station.
height	The height of the station.
radius	The radius of the station.

Precondition: GSMap::IsValidTile(tile).; GSCargo::IsValidCargo(cargo_type); width > 0.; height > 0.; radius >= 0.

Returns: Values below 8 mean no acceptance; the more the better.

◆ GetCargoProduction()

static int GSTile::GetCargoProduction	(	TileIndex	tile,
		CargoID	cargo_type,
		int	width,
		int	height,
		int	radius
	)

static

Checks how many producers in the radius produces this cargo.

It creates a radius around the tile, and counts all producer of this cargo.

Parameters

tile	The tile to check on.
cargo_type	The cargo to check the production of.
width	The width of the station.
height	The height of the station.
radius	The radius of the station.

Precondition: GSMap::IsValidTile(tile).; GSCargo::IsValidCargo(cargo_type); width > 0.; height > 0.; radius >= 0.

Returns: The number of producers that produce this cargo within radius of the tile.

◆ GetClosestTown()

static TownID GSTile::GetClosestTown ( TileIndex tile )

static

Find the town that is closest to a tile.

Stations you build at this tile will belong to this town.

Parameters

tile	The tile to check.

Returns: The TownID of the town closest to the tile.

◆ GetComplementSlope()

static Slope GSTile::GetComplementSlope ( Slope slope )

static

Get the complement of the slope.

Parameters

slope The slope to get the complement of.

Precondition: slope != SLOPE_INVALID.; !IsSteepSlope(slope).; !IsHalftileSlope(slope).

Returns: The complement of a slope. This means that all corners that weren't raised, are raised, and visa versa.

◆ GetCornerHeight()

static int GSTile::GetCornerHeight	(	TileIndex	tile,
		Corner	corner
	)

static

Get the height of a certain corner of a tile.

The returned height is the height of the bare tile. A possible foundation on the tile does not influence this height.

Parameters

tile	The tile to check on.
corner	The corner to query.

Precondition: GSMap::IsValidTile(tile).

Returns: The height of the lowest corner of the tile, ranging from 0 to 15.

◆ GetDistanceManhattanToTile()

static int GSTile::GetDistanceManhattanToTile	(	TileIndex	tile_from,
		TileIndex	tile_to
	)

static

Get the manhattan distance from the tile to the tile.

Parameters

tile_from	The tile to get the distance to.
tile_to	The tile to get the distance to.

Returns: The distance between the two tiles.

◆ GetDistanceSquareToTile()

static int GSTile::GetDistanceSquareToTile	(	TileIndex	tile_from,
		TileIndex	tile_to
	)

static

Get the square distance from the tile to the tile.

Parameters

tile_from	The tile to get the distance to.
tile_to	The tile to get the distance to.

Returns: The distance between the two tiles.

◆ GetMaxHeight()

static int GSTile::GetMaxHeight ( TileIndex tile )

static

Get the maximal height on a tile.

The returned height is the height of the bare tile. A possible foundation on the tile does not influence this height.

Parameters

tile	The tile to check on.

Precondition: GSMap::IsValidTile(tile).

Returns: The height of the highest corner of the tile, ranging from 0 to 15.

◆ GetMinHeight()

static int GSTile::GetMinHeight ( TileIndex tile )

static

Get the minimal height on a tile.

The returned height is the height of the bare tile. A possible foundation on the tile does not influence this height.

Parameters

tile	The tile to check on.

Precondition: GSMap::IsValidTile(tile).

Returns: The height of the lowest corner of the tile, ranging from 0 to 15.

◆ GetOwner()

static GSCompany::CompanyID GSTile::GetOwner ( TileIndex tile )

static

Get the owner of the tile.

Parameters

tile	The tile to get the owner from.

Precondition: GSMap::IsValidTile(tile).

Returns: The CompanyID of the owner of the tile, or COMPANY_INVALID if there is no owner (grass/industry/water tiles, etc.).

◆ GetSlope()

static Slope GSTile::GetSlope ( TileIndex tile )

static

Get the slope of a tile.

This is the slope of the bare tile. A possible foundation on the tile does not influence this slope.

Parameters

tile	The tile to check on.

Precondition: GSMap::IsValidTile(tile).

Returns: Bit mask encoding the slope. See Slope for a description of the returned values.

◆ GetTerrainType()

static TerrainType GSTile::GetTerrainType ( TileIndex tile )

static

Get the type of terrain regardless of buildings or infrastructure.

Note: When a desert or rainforest tile are changed, their terrain type will remain the same. In other words, a sea tile can be of the desert terrain type.; The snow terrain type can change to the normal terrain type and vice versa based on landscaping or variable snow lines from NewGRFs.

Parameters

tile	The tile to check on.

Precondition: GSMap::IsValidTile(tile).

Returns: The TerrainType.

◆ GetTownAuthority()

static TownID GSTile::GetTownAuthority ( TileIndex tile )

static

Find the town which has authority for the tile.

The rating of your company in this town will be checked and affected when building stations, trees etc.

Parameters

tile	The tile to check.

Returns: The TownID of the town which has authority on this tile.

◆ HasTransportType()

static bool GSTile::HasTransportType	(	TileIndex	tile,
		TransportType	transport_type
	)

static

Checks whether the given tile contains parts suitable for the given TransportType.

Parameters

tile	The tile to check.
transport_type	The TransportType to check against.

Precondition: GSMap::IsValidTile(tile).; transport_type != TRANSPORT_AIR.

Note: Returns false on tiles with roadworks and on road tiles with only a single piece of road as these tiles cannot be used to transport anything on. It furthermore returns true on some coast tile for TRANSPORT_WATER because ships can navigate over them.; Use GSAirport.IsAirportTile to check for airport tiles. Aircraft can fly over every tile on the map so using HasTransportType doesn't make sense for TRANSPORT_AIR.

Returns: True if and only if the tile has the given TransportType.

◆ HasTreeOnTile()

static bool GSTile::HasTreeOnTile ( TileIndex tile )

static

Check if the tile has any tree on it.

Parameters

tile	The tile to check on.

Precondition: GSMap::IsValidTile(tile).

Returns: True if and only if there is a tree on the tile.

◆ IsBuildable()

static bool GSTile::IsBuildable ( TileIndex tile )

static

Check if this tile is buildable, i.e.

no things on it that needs demolishing.

Parameters

tile	The tile to check on.

Precondition: GSMap::IsValidTile(tile).

Returns: True if it is buildable, false if not.

Note: For trams you also might want to check for GSRoad::IsRoad(), as you can build tram-rails on road-tiles.; For rail you also might want to check for GSRoad::IsRoad(), as in some cases you can build rails on road-tiles.

◆ IsBuildableRectangle()

static bool GSTile::IsBuildableRectangle	(	TileIndex	tile,
		int	width,
		int	height
	)

static

Check if this tile is buildable in a rectangle around a tile, with the entry in the list as top-left.

Parameters

tile	The tile to check on.
width	The width of the rectangle.
height	The height of the rectangle.

Precondition: GSMap::IsValidTile(tile).; width >= 0.; height >= 0.

Returns: True if it is buildable, false if not.

◆ IsCoastTile()

static bool GSTile::IsCoastTile ( TileIndex tile )

static

Checks whether the given tile is actually a coast tile.

Parameters

tile	The tile to check.

Precondition: GSMap::IsValidTile(tile).

Returns: True if and only if the tile is a coast tile.

Note: Building on coast tiles in general is more expensive. This is not true if there are also trees on the tile, see HasTreeOnTile.

◆ IsDesertTile()

static bool GSTile::IsDesertTile ( TileIndex tile )

static

Check if the tile without buildings or infrastructure is a desert tile.

Note: If you want to know if a tile (with or without buildings and infrastructure) is in a desert, use GSTile::GetTerrainType(tile).

Parameters

tile	The tile to check on.

Precondition: GSMap::IsValidTile(tile).

Returns: True if and only if the tile is desert tile.

◆ IsFarmTile()

static bool GSTile::IsFarmTile ( TileIndex tile )

static

Check if the tile is a farmland tile.

Parameters

tile	The tile to check on.

Precondition: GSMap::IsValidTile(tile).

Returns: True if and only if the tile is farmland.

◆ IsHalftileSlope()

static bool GSTile::IsHalftileSlope ( Slope slope )

static

Check if a tile has a halftile slope.

Halftile slopes appear on top of halftile foundations. E.g. the slope you get when building a horizontal railtrack on the top of a SLOPE_N or SLOPE_STEEP_N.

Parameters

slope The slope to check on.

Precondition: slope != SLOPE_INVALID.

Returns: True if the slope is a halftile slope.

Note: Currently there is no API function that would return or accept a halftile slope.

◆ IsRiverTile()

static bool GSTile::IsRiverTile ( TileIndex tile )

static

Checks whether the given tile is actually a river tile.

Parameters

tile	The tile to check on.

Precondition: GSMap::IsValidTile(tile).

Returns: True if and only if the tile is a river tile.

◆ IsRockTile()

static bool GSTile::IsRockTile ( TileIndex tile )

static

Check if the tile is a rock tile.

Parameters

tile	The tile to check on.

Precondition: GSMap::IsValidTile(tile).

Returns: True if and only if the tile is rock tile.

◆ IsRoughTile()

static bool GSTile::IsRoughTile ( TileIndex tile )

static

Check if the tile is a rough tile.

Parameters

tile	The tile to check on.

Precondition: GSMap::IsValidTile(tile).

Returns: True if and only if the tile is rough tile.

◆ IsSeaTile()

static bool GSTile::IsSeaTile ( TileIndex tile )

static

Checks whether the given tile is actually a sea tile.

Parameters

tile	The tile to check on.

Precondition: GSMap::IsValidTile(tile).

Returns: True if and only if the tile is a sea tile.

◆ IsSnowTile()

static bool GSTile::IsSnowTile ( TileIndex tile )

static

Check if the tile without buildings or infrastructure is a snow tile.

Note: If you want to know if a tile (with or without buildings and infrastructure) is on or above the snowline, use GSTile::GetTerrainType(tile).

Parameters

tile	The tile to check on.

Precondition: GSMap::IsValidTile(tile).

Returns: True if and only if the tile is snow tile.

◆ IsStationTile()

static bool GSTile::IsStationTile ( TileIndex tile )

static

Checks whether the given tile is a station tile of any station.

Parameters

tile	The tile to check.

Precondition: GSMap::IsValidTile(tile).

Returns: True if and only if the tile is a station tile.

◆ IsSteepSlope()

static bool GSTile::IsSteepSlope ( Slope slope )

static

Check if a tile has a steep slope.

Steep slopes are slopes with a height difference of 2 across one diagonal of the tile.

Parameters

slope The slope to check on.

Precondition: slope != SLOPE_INVALID.

Returns: True if the slope is a steep slope.

◆ IsWaterTile()

static bool GSTile::IsWaterTile ( TileIndex tile )

static

Checks whether the given tile is actually a water tile.

Parameters

tile	The tile to check on.

Precondition: GSMap::IsValidTile(tile).

Returns: True if and only if the tile is a water tile.

Note: Returns false when a buoy is on the tile.

◆ IsWithinTownInfluence()

static bool GSTile::IsWithinTownInfluence	(	TileIndex	tile,
		TownID	town_id
	)

static

Find out if this tile is within the rating influence of a town.

If a station sign would be on this tile, the servicing quality of the station would influence the rating of the town.

Parameters

tile	The tile to check.
town_id	The town to check.

Returns: True if the tile is within the rating influence of the town.

◆ LevelTiles()

static bool GSTile::LevelTiles	(	TileIndex	start_tile,
		TileIndex	end_tile
	)

static

Level all tiles in the rectangle between start_tile and end_tile so they are at the same height.

All tiles will be raised or lowered until they are at height GSTile::GetCornerHeight(start_tile, GSTile::CORNER_N).

Parameters

start_tile	One corner of the rectangle to level.
end_tile	The opposite corner of the rectangle.

Precondition: start_tile < GSMap::GetMapSize().; end_tile < GSMap::GetMapSize().; GSCompanyMode::IsValid().

Exceptions

GSError::ERR_AREA_NOT_CLEAR
GSError::ERR_TOO_CLOSE_TO_EDGE

Returns: True if one or more tiles were leveled.

Note: Even if leveling some part fails, some other part may have been successfully leveled already.; This function may return true in GSTestMode, although it fails in GSExecMode.

◆ LowerTile()

static bool GSTile::LowerTile	(	TileIndex	tile,
		Slope	slope
	)

static

Lower the given corners of the tile.

The corners can be combined, for example: SLOPE_N | SLOPE_W (= SLOPE_NW) will lower the west and the north corner.

Note: The corners will be modified in the order west (first), south, east, north (last). Changing one corner might cause another corner to be changed too. So modifiing multiple corners may result in changing some corners by multiple steps.

Parameters

tile	The tile to lower.
slope	Corners to lower (SLOPE_xxx).

Precondition: tile < GSMap::GetMapSize().; GSCompanyMode::IsValid().

Exceptions

GSError::ERR_AREA_NOT_CLEAR
GSError::ERR_TOO_CLOSE_TO_EDGE
GSTile::ERR_TILE_TOO_LOW

Returns: 0 means failed, 1 means success.

◆ PlantTree()

static bool GSTile::PlantTree ( TileIndex tile )

static

Create a random tree on a tile.

Parameters

tile	The tile to build a tree on.

Precondition: GSMap::IsValidTile(tile).; GSCompanyMode::IsValid().

Returns: True if and only if a tree was added on the tile.

◆ PlantTreeRectangle()

static bool GSTile::PlantTreeRectangle	(	TileIndex	tile,
		int	width,
		int	height
	)

static

Create a random tree on a rectangle of tiles.

Parameters

tile	The top left tile of the rectangle.
width	The width of the rectangle.
height	The height of the rectangle.

Precondition: GSMap::IsValidTile(tile).; width >= 1 && width <= 20.; height >= 1 && height <= 20.; GSCompanyMode::IsValid().

Returns: True if and only if a tree was added on any of the tiles in the rectangle.

◆ RaiseTile()

static bool GSTile::RaiseTile	(	TileIndex	tile,
		Slope	slope
	)

static

Raise the given corners of the tile.

The corners can be combined, for example: SLOPE_N | SLOPE_W (= SLOPE_NW) will raise the west and the north corner.

Note: The corners will be modified in the order west (first), south, east, north (last). Changing one corner might cause another corner to be changed too. So modifiing multiple corners may result in changing some corners by multiple steps.

Parameters

tile	The tile to raise.
slope	Corners to raise (SLOPE_xxx).

Precondition: tile < GSMap::GetMapSize().; GSCompanyMode::IsValid().

Exceptions

GSError::ERR_AREA_NOT_CLEAR
GSError::ERR_TOO_CLOSE_TO_EDGE
GSTile::ERR_TILE_TOO_HIGH

Returns: 0 means failed, 1 means success.

Public Types

Static Public Member Functions

Detailed Description

Member Enumeration Documentation

◆ BuildType

◆ Corner

◆ ErrorMessages

◆ Slope

◆ TerrainType

◆ TransportType

Member Function Documentation

◆ DemolishTile()

◆ GetBuildCost()

◆ GetCargoAcceptance()

◆ GetCargoProduction()

◆ GetClosestTown()

◆ GetComplementSlope()

◆ GetCornerHeight()

◆ GetDistanceManhattanToTile()

◆ GetDistanceSquareToTile()

◆ GetMaxHeight()

◆ GetMinHeight()

◆ GetOwner()

◆ GetSlope()

◆ GetTerrainType()

◆ GetTownAuthority()

◆ HasTransportType()

◆ HasTreeOnTile()

◆ IsBuildable()

◆ IsBuildableRectangle()

◆ IsCoastTile()

◆ IsDesertTile()

◆ IsFarmTile()

◆ IsHalftileSlope()

◆ IsRiverTile()

◆ IsRockTile()

◆ IsRoughTile()

◆ IsSeaTile()

◆ IsSnowTile()

◆ IsStationTile()

◆ IsSteepSlope()

◆ IsWaterTile()

◆ IsWithinTownInfluence()

◆ LevelTiles()

◆ LowerTile()

◆ PlantTree()

◆ PlantTreeRectangle()

◆ RaiseTile()