Table of Contents

TileElement Structure

Surface Elements (SurfaceElement struct)
Path Elements (PathElement struct)
Track Elements (TrackElement struct)
Scenery Small (Single Tile) Elements (SmallSceneryElement struct)
Entrance Elements (EntranceElement struct)
Wall Elements (WallElement struct)
Scenery Large (Multiple Tile) Elements (LargeSceneryElement struct)
Banner Elements (BannerElement struct)

Every tile on the current map is made up of TileElement. There can be multiple TileElements at each tile coordinate. By default, the elements per tile are ordered by their base height and are contiguous in memory. The last element at a coordinate has the last_tile flag set. See also Map Generation.

TileElement Structure

Each TileElement is made up of 8 bytes. There are 8 different types of tile element and they all have the same structure for the first 4 bytes:

Byte	Offset Name	Notes
0	Type	`0bXXYY_YYRR` where Y is the type (see table below), X is specific to type see below, R is the rotation
1	Flags	See table below
2	Base Height	The lowest point of the tile. Multiply by 8 to get real units.
3	Clearance Height	The highest point of the tile. Multiply by 8 to get real units.

The other 4 bytes differ per type.

Type Table

Index	Type
0	Surface
1	Path
2	Track
3	Scenery Small (Single Tile)
4	Entrance
5	Wall
6	Scenery Large (Multiple Tile)
7	Banner
8-15	Unused; Can cause odd issues if used.

Flags Table

Index	Description
0 - 3	Collision Detection. Each bit represents a quarter of the tile 1 == top right, 8 == top left. If set vehicles that are off rails will collide.
4	Ghost (Tile drawn white to indicate where construction will go)
5	Broken (Used to indicate benches, bins, etc. are broken)
6	For tracks this indicates they cannot be removed.
7	Last Tile at coordinate.

Surface Elements (`SurfaceElement` struct)

Byte	Offset Name	Notes
0	Type	`0bE?YY_YY?T` where E is vertical edge style (extra bit), T is terrain style (extra bit)
4	Slope	`0bEEES_SSSS` where E is the vertical edge style, S is slope. The 4 least significant bits represent one corner each, and the most significant bit tells when a slope is very steep. For steep slopes, three of the least significant bits need to be set.
5	Terrain	`0bTTTW_WWWW` where T is terrain style, W is water height.
6	Grass Length	0 to 6 (0 = Mowed, 1 = Clear, 4 = Clumped, 6 = Heavily clumped)
7	Ownership	`0bOOOO_FFFF` where O is ownership flags and F are park fence direction flags.

Path Elements (`PathElement` struct)

Depending on if the path is a queue or not modifies the structure.

Byte	Offset Name	Notes
0	Type	`0b??YY_YY2Q` where Q is set if it is a queue, 2 is set when the path is 2+ sections wide (stops peeps from thinking its a junction)
4	Path Type	`0bTTTT_QSDD` where T is the type of path (0-15 from the paths available in the scenario), Q is set when it's the last path-element in a queue (the one with a banner), S is set if the path is sloped, and D stores the direction of the path. See Objects#footpath-item
5	Additions	Path additions are scenery that can be placed on paths (benches, bins, lamps). `0bG?SS_AAAA` where G is set for when the addition is a ghost, A is the type of addition (See rct_path_bit_scenery_entry), and S is the station number (rides can have up to 4 sets of stations).
6	Edges	`0bCCCC_SSSS` where C are bits indicating if the corners are connected and S are bits indicating whether the edges are connected.
7	Additions Status	For each of the 4 edges there are 2 bits to indicate if seat occupied (1 for occupied) / bin fullness (0 for full, 3 for empty).
7	Ride Index	Index of the ride that the queue is connected to 0xFF for nothing.

Track Elements (`TrackElement` struct)

The track element structure has two different forms depending on if its a maze or a regular ride.

Byte	Offset Name	Notes
0	Type	`0bC?YY_YYRR` where C is set if it is a chain lift
4	Type	Each track element has a different track element type. See Track Data
5	Sequence	`0bPPPP_SSSS` where S is the sequence index for the track piece (A curve for example is made up of multiple tiles each tile increments the sequence number). P is an extra parameter, for example brakes store the speed in this parameter.
6	Colour	`0bSSSS_LICC` where C are bits indicating the colour scheme of the track piece. S stores seat rotation. I stores whether this piece is inverted (Multi-dim, Flying, Lay-down). L stores whether this piece contains a cable lift (Giga Coaster, not to be confused with chain lift).
5 - 6	Maze Entry
7	Ride Index	Index of the ride that the track is connected to 0xFF for nothing.

Scenery Small (Single Tile) Elements (`SmallSceneryElement` struct)

Byte	Offset Name	Notes
0	Type	`0bQQTT_TTRR` where Q is the quadrant used by small tiles that take up a single quadrant.
1	Flags	`0bFFFF_XXXX` where X is ???
4	Type	Index of the .DAT file that element represents. (Note 255 max small scenery). See Objects#small-scenery
5	Age	Used to show ageing of flowers.
6	Colour 1	`0b???C_CCCC` where C is colour 1
7	Colour 2	`0b???C_CCCC` where C is colour 2

Entrance Elements (`EntranceElement` struct)

Byte	Offset Name	Notes
4	Type	There are 3 different types of entrance: PARK, RIDE_ENTRANCE, RIDE_EXIT
5	Index	`0bSSRR_IIII` where I is the Index for which tile of the park entrance is shown. Park entrances are 3x1 middle tile is 0, left is 1, right is 2. R is the entrance or exit index for rides. S is the station number that the entrance/exit is connected to.
6	Path Type	The type of path that is used in the park entrance.
7	Ride Index	The ride index for the entrance/exit.

Wall Elements (`WallElement` struct)

Byte	Offset Name	Notes
0	Type	`0bXXYY_YYRR` Where XX stores the slope (0 = flat, 1 and 2 are sloped)
2	Flags	`0bL?BG_SS??` S is top 2 bits of secondary colour.
4	Type	Type of wall, used to index into the loaded .DAT files. See Objects#wall
5	Tertiary Colour	Tertiary Colour
5	Banner Index	If the wall has a banner.
6	Primary Colour	`0bSSSP_PPPP` where P is primary colour and S is secondary colour (Note top 2 bits are in flags).
7	Animation??	`0bLHHH_HLLL` where L is ?? and H is ??.

Scenery Large (Multiple Tile) Elements (`LargeSceneryElement` struct)

Byte	Offset Name	Notes
0	Type	`0bBBTT_TTRR` B is for 2 highest bits of banner index (if used).
4 - 5	Type	`0bIIII_IITT_TTTT_TTTT` Type of large scenery, used to index into the loaded .DAT files. See Objects#large-scenery (Has space to go above the 128 maximum??). I is for Index of the multiple tile. I.e. 0 is for bottom left and counts up.
6	Primary Colour	`0bBBBP_PPPP` where P is primary colour and B is middle 3 bits of banner index (if used).
7	Secondary Colour	`0bBBBS_SSSS` where S is secondary colour and B is first 3 bits of banner index (if used).

Banner Elements (`BannerElement` struct)

Byte	Offset Name	Notes
4	Index	Banner Index. Used to index into the gBanners array to get more information about the banner. See Objects#banner for more information.
5	Position	Position on the path that the banner is used across.
6	Flags	`0bXXXX_NNNN` Where N is an edge that is able to be entered when set and no entry when unset.
7	Unused	Not used.

TileElement Structure

Type Table

Flags Table

Surface Elements (SurfaceElement struct)

Path Elements (PathElement struct)

Track Elements (TrackElement struct)

Scenery Small (Single Tile) Elements (SmallSceneryElement struct)

Entrance Elements (EntranceElement struct)

Wall Elements (WallElement struct)

Scenery Large (Multiple Tile) Elements (LargeSceneryElement struct)

Banner Elements (BannerElement struct)