TileSetAtlasSource

Inherits: TileSetSource < Resource < RefCounted < Object

Exposes a 2D atlas texture as a set of tiles for a TileSet resource.

Description

An atlas is a grid of tiles laid out on a texture. Each tile in the grid must be exposed using create_tile. Those tiles are then indexed using their coordinates in the grid.

Each tile can also have a size in the grid coordinates, making it more or less cells in the atlas.

Alternatives version of a tile can be created using create_alternative_tile, which are then indexed using an alternative ID. The main tile (the one in the grid), is accessed with an alternative ID equal to 0.

Each tile alternate has a set of properties that is defined by the source's TileSet layers. Those properties are stored in a TileData object that can be accessed and modified using get_tile_data.

As TileData properties are stored directly in the TileSetAtlasSource resource, their properties might also be set using TileSetAtlasSource.set("<coords_x>:<coords_y>/<alternative_id>/<tile_data_property>").

Properties

Vector2i

margins

Vector2i(0, 0)

Vector2i

separation

Vector2i(0, 0)

Texture2D

texture

Vector2i

texture_region_size

Vector2i(16, 16)

bool

use_texture_padding

true

Methods

int

create_alternative_tile ( Vector2i atlas_coords, int alternative_id_override=-1 )

void

create_tile ( Vector2i atlas_coords, Vector2i size=Vector2i(1, 1) )

Vector2i

get_atlas_grid_size ( ) const

int

get_next_alternative_tile_id ( Vector2i atlas_coords ) const

Texture2D

get_runtime_texture ( ) const

Rect2i

get_runtime_tile_texture_region ( Vector2i atlas_coords, int frame ) const

int

get_tile_animation_columns ( Vector2i atlas_coords ) const

float

get_tile_animation_frame_duration ( Vector2i atlas_coords, int frame_index ) const

int

get_tile_animation_frames_count ( Vector2i atlas_coords ) const

Vector2i

get_tile_animation_separation ( Vector2i atlas_coords ) const

float

get_tile_animation_speed ( Vector2i atlas_coords ) const

float

get_tile_animation_total_duration ( Vector2i atlas_coords ) const

Vector2i

get_tile_at_coords ( Vector2i atlas_coords ) const

Object

get_tile_data ( Vector2i atlas_coords, int alternative_tile ) const

Vector2i

get_tile_size_in_atlas ( Vector2i atlas_coords ) const

Rect2i

get_tile_texture_region ( Vector2i atlas_coords, int frame=0 ) const

PackedVector2Array

get_tiles_to_be_removed_on_change ( Texture2D texture, Vector2i margins, Vector2i separation, Vector2i texture_region_size )

bool

has_room_for_tile ( Vector2i atlas_coords, Vector2i size, int animation_columns, Vector2i animation_separation, int frames_count, Vector2i ignored_tile=Vector2i(-1, -1) ) const

void

move_tile_in_atlas ( Vector2i atlas_coords, Vector2i new_atlas_coords=Vector2i(-1, -1), Vector2i new_size=Vector2i(-1, -1) )

void

remove_alternative_tile ( Vector2i atlas_coords, int alternative_tile )

void

remove_tile ( Vector2i atlas_coords )

void

set_alternative_tile_id ( Vector2i atlas_coords, int alternative_tile, int new_id )

void

set_tile_animation_columns ( Vector2i atlas_coords, int frame_columns )

void

set_tile_animation_frame_duration ( Vector2i atlas_coords, int frame_index, float duration )

void

set_tile_animation_frames_count ( Vector2i atlas_coords, int frames_count )

void

set_tile_animation_separation ( Vector2i atlas_coords, Vector2i separation )

void

set_tile_animation_speed ( Vector2i atlas_coords, float speed )

Property Descriptions

Default

Vector2i(0, 0)

Setter

set_margins(value)

Getter

get_margins()

Margins, in pixels, to offset the origin of the grid in the texture.


Default

Vector2i(0, 0)

Setter

set_separation(value)

Getter

get_separation()

Separation, in pixels, between each tile texture region of the grid.


Setter

set_texture(value)

Getter

get_texture()

The atlas texture.


Default

Vector2i(16, 16)

Setter

set_texture_region_size(value)

Getter

get_texture_region_size()

The base tile size in the texture (in pixel). This size must be bigger than the TileSet's tile_size value.


  • bool use_texture_padding

Default

true

Setter

set_use_texture_padding(value)

Getter

get_use_texture_padding()

If true, generates an internal texture with an additional one pixel padding around each tile. Texture padding avoids a common artifact where lines appear between tiles.

Disabling this setting might lead a small performance improvement, as generating the internal texture requires both memory and processing time when the TileSetAtlasSource resource is modified.

Method Descriptions

  • int create_alternative_tile ( Vector2i atlas_coords, int alternative_id_override=-1 )

Creates an alternative tile for the tile at coords atlas_coords. If alternative_id_override is -1, give it an automatically generated unique ID, or assigns it the given ID otherwise.

Returns the new alternative identifier, or -1 if the alternative could not be created with a provided alternative_id_override.


Creates a new tile at coords atlas_coords with size size.


  • Vector2i get_atlas_grid_size ( ) const

Returns the atlas grid size, which depends on how many tiles can fit in the texture. It thus depends on the Texture's size, the atlas margins the tiles' texture_region_size.


  • int get_next_alternative_tile_id ( Vector2i atlas_coords ) const

Returns the alternative ID a following call to create_alternative_tile would return.


If use_texture_padding is false, returns texture. Otherwise, returns and internal ImageTexture created that includes the padding.


Returns the region of the tile at coordinates atlas_coords for frame frame inside the texture returned by get_runtime_texture.

Note: If use_texture_padding is false, returns the same as get_tile_texture_region.


  • int get_tile_animation_columns ( Vector2i atlas_coords ) const

Returns how many columns the tile at atlas_coords has in its animation layout.


  • float get_tile_animation_frame_duration ( Vector2i atlas_coords, int frame_index ) const

Returns the animation frame duration of frame frame_index for the tile at coordinates atlas_coords.


  • int get_tile_animation_frames_count ( Vector2i atlas_coords ) const

Returns how many animation frames has the tile at coordinates atlas_coords.


Returns the separation (as in the atlas grid) between each frame of an animated tile at coordinates atlas_coords.


Returns the animation speed of the tile at coordinates atlas_coords.


  • float get_tile_animation_total_duration ( Vector2i atlas_coords ) const

Returns the sum of the sum of the frame durations of the tile at coordinates atlas_coords. This value needs to be divided by the animation speed to get the actual animation loop duration.


If there is a tile covering the atlas_coords coordinates, returns the top-left coordinates of the tile (thus its coordinate ID). Returns Vector2i(-1, -1) otherwise.


Returns the TileData object for the given atlas coordinates and alternative ID.


Returns the size of the tile (in the grid coordinates system) at coordinates atlas_coords.


Returns a tile's texture region in the atlas texture. For animated tiles, a frame argument might be provided for the different frames of the animation.


Returns an array of tiles coordinates ID that will be automatically removed when modifying one or several of those properties: texture, margins, separation or texture_region_size. This can be used to undo changes that would have caused tiles data loss.


Returns whether there is enough room in an atlas to create/modify a tile with the given properties. If ignored_tile is provided, act as is the given tile was not present in the atlas. This may be used when you want to modify a tile's properties.


  • void move_tile_in_atlas ( Vector2i atlas_coords, Vector2i new_atlas_coords=Vector2i(-1, -1), Vector2i new_size=Vector2i(-1, -1) )

Move the tile and its alternatives at the atlas_coords coordinates to the new_atlas_coords coordinates with the new_size size. This functions will fail if a tile is already present in the given area.

If new_atlas_coords is Vector2i(-1, -1), keeps the tile's coordinates. If new_size is Vector2i(-1, -1), keeps the tile's size.

To avoid an error, first check if a move is possible using has_room_for_tile.


  • void remove_alternative_tile ( Vector2i atlas_coords, int alternative_tile )

Remove a tile's alternative with alternative ID alternative_tile.

Calling this function with alternative_tile equals to 0 will fail, as the base tile alternative cannot be removed.


  • void remove_tile ( Vector2i atlas_coords )

Remove a tile and its alternative at coordinates atlas_coords.


  • void set_alternative_tile_id ( Vector2i atlas_coords, int alternative_tile, int new_id )

Change a tile's alternative ID from alternative_tile to new_id.

Calling this function with alternative_id equals to 0 will fail, as the base tile alternative cannot be moved.


  • void set_tile_animation_columns ( Vector2i atlas_coords, int frame_columns )

Sets the number of columns in the animation layout of the tile at coordinates atlas_coords. If set to 0, then the different frames of the animation are laid out as a single horizontal line in the atlas.


  • void set_tile_animation_frame_duration ( Vector2i atlas_coords, int frame_index, float duration )

Sets the animation frame duration of frame frame_index for the tile at coordinates atlas_coords.


  • void set_tile_animation_frames_count ( Vector2i atlas_coords, int frames_count )

Sets how many animation frames the tile at coordinates atlas_coords has.


  • void set_tile_animation_separation ( Vector2i atlas_coords, Vector2i separation )

Sets the margin (in grid tiles) between each tile in the animation layout of the tile at coordinates atlas_coords has.


  • void set_tile_animation_speed ( Vector2i atlas_coords, float speed )

Sets the animation speed of the tile at coordinates atlas_coords has.