<?xml version="1.0" encoding="UTF-8" ?>
<class name="TileSetSource" inherits="Resource" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
	<brief_description>
		Exposes a set of tiles for a [TileSet] resource.
	</brief_description>
	<description>
		Exposes a set of tiles for a [TileSet] resource.
		Tiles in a source are indexed with two IDs, coordinates ID (of type Vector2i) and an alternative ID (of type int), named according to their use in the [TileSetAtlasSource] class.
		Depending on the TileSet source type, those IDs might have restrictions on their values, this is why the base [TileSetSource] class only exposes getters for them.
		You can iterate over all tiles exposed by a TileSetSource by first iterating over coordinates IDs using [method get_tiles_count] and [method get_tile_id], then over alternative IDs using [method get_alternative_tiles_count] and [method get_alternative_tile_id].
		[b]Warning:[/b] [TileSetSource] can only be added to one TileSet at the same time. Calling [method TileSet.add_source] on a second [TileSet] will remove the source from the first one.
	</description>
	<tutorials>
	</tutorials>
	<methods>
		<method name="get_alternative_tile_id" qualifiers="const">
			<return type="int" />
			<param index="0" name="atlas_coords" type="Vector2i" />
			<param index="1" name="index" type="int" />
			<description>
				Returns the alternative ID for the tile with coordinates ID [param atlas_coords] at index [param index].
			</description>
		</method>
		<method name="get_alternative_tiles_count" qualifiers="const">
			<return type="int" />
			<param index="0" name="atlas_coords" type="Vector2i" />
			<description>
				Returns the number of alternatives tiles for the coordinates ID [param atlas_coords].
				For [TileSetAtlasSource], this always return at least 1, as the base tile with ID 0 is always part of the alternatives list.
				Returns -1 if there is not tile at the given coords.
			</description>
		</method>
		<method name="get_tile_id" qualifiers="const">
			<return type="Vector2i" />
			<param index="0" name="index" type="int" />
			<description>
				Returns the tile coordinates ID of the tile with index [param index].
			</description>
		</method>
		<method name="get_tiles_count" qualifiers="const">
			<return type="int" />
			<description>
				Returns how many tiles this atlas source defines (not including alternative tiles).
			</description>
		</method>
		<method name="has_alternative_tile" qualifiers="const">
			<return type="bool" />
			<param index="0" name="atlas_coords" type="Vector2i" />
			<param index="1" name="alternative_tile" type="int" />
			<description>
				Returns if the base tile at coordinates [param atlas_coords] has an alternative with ID [param alternative_tile].
			</description>
		</method>
		<method name="has_tile" qualifiers="const">
			<return type="bool" />
			<param index="0" name="atlas_coords" type="Vector2i" />
			<description>
				Returns if this atlas has a tile with coordinates ID [param atlas_coords].
			</description>
		</method>
	</methods>
</class>
