140 lines
6.4 KiB
XML
140 lines
6.4 KiB
XML
<?xml version="1.0" encoding="UTF-8" ?>
|
|
<class name="NodePath" category="Built-In Types" version="3.1.2">
|
|
<brief_description>
|
|
Pre-parsed scene tree path.
|
|
</brief_description>
|
|
<description>
|
|
A pre-parsed relative or absolute path in a scene tree, for use with [method Node.get_node] and similar functions. It can reference a node, a resource within a node, or a property of a node or resource. For instance, [code]"Path2D/PathFollow2D/Sprite:texture:size"[/code] would refer to the [code]size[/code] property of the [code]texture[/code] resource on the node named [code]"Sprite"[/code] which is a child of the other named nodes in the path.
|
|
You will usually just pass a string to [method Node.get_node] and it will be automatically converted, but you may occasionally want to parse a path ahead of time with [NodePath] or the literal syntax [code]@"path"[/code]. Exporting a [NodePath] variable will give you a node selection widget in the properties panel of the editor, which can often be useful.
|
|
A [NodePath] is composed of a list of slash-separated node names (like a filesystem path) and an optional colon-separated list of "subnames" which can be resources or properties.
|
|
Some examples of NodePaths include the following:
|
|
[codeblock]
|
|
# No leading slash means it is relative to the current node.
|
|
@"A" # Immediate child A
|
|
@"A/B" # A's child B
|
|
@"." # The current node.
|
|
@".." # The parent node.
|
|
@"../C" # A sibling node C.
|
|
# A leading slash means it is absolute from the SceneTree.
|
|
@"/root" # Equivalent to get_tree().get_root().
|
|
@"/root/Main" # If your main scene's root node were named "Main".
|
|
@"/root/MyAutoload" # If you have an autoloaded node or scene.
|
|
[/codeblock]
|
|
</description>
|
|
<tutorials>
|
|
</tutorials>
|
|
<methods>
|
|
<method name="NodePath">
|
|
<return type="NodePath">
|
|
</return>
|
|
<argument index="0" name="from" type="String">
|
|
</argument>
|
|
<description>
|
|
Create a NodePath from a string, e.g. "Path2D/PathFollow2D/Sprite:texture:size". A path is absolute if it starts with a slash. Absolute paths are only valid in the global scene tree, not within individual scenes. In a relative path, [code]"."[/code] and [code]".."[/code] indicate the current node and its parent.
|
|
The "subnames" optionally included after the path to the target node can point to resources or properties, and can also be nested.
|
|
Examples of valid NodePaths (assuming that those nodes exist and have the referenced resources or properties):
|
|
[codeblock]
|
|
# Points to the Sprite node
|
|
"Path2D/PathFollow2D/Sprite"
|
|
# Points to the Sprite node and its 'texture' resource.
|
|
# get_node() would retrieve "Sprite", while get_node_and_resource()
|
|
# would retrieve both the Sprite node and the 'texture' resource.
|
|
"Path2D/PathFollow2D/Sprite:texture"
|
|
# Points to the Sprite node and its 'position' property.
|
|
"Path2D/PathFollow2D/Sprite:position"
|
|
# Points to the Sprite node and the 'x' component of its 'position' property.
|
|
"Path2D/PathFollow2D/Sprite:position:x"
|
|
# Absolute path (from 'root')
|
|
"/root/Level/Path2D"
|
|
[/codeblock]
|
|
</description>
|
|
</method>
|
|
<method name="get_as_property_path">
|
|
<return type="NodePath">
|
|
</return>
|
|
<description>
|
|
Returns a node path with a colon character ([code]:[/code]) prepended, transforming it to a pure property path with no node name (defaults to resolving from the current node).
|
|
[codeblock]
|
|
# This will be parsed as a node path to the 'x' property in the 'position' node
|
|
var node_path = NodePath("position:x")
|
|
# This will be parsed as a node path to the 'x' component of the 'position' property in the current node
|
|
var property_path = node_path.get_as_property_path()
|
|
print(property_path) # :position:x
|
|
[/codeblock]
|
|
</description>
|
|
</method>
|
|
<method name="get_concatenated_subnames">
|
|
<return type="String">
|
|
</return>
|
|
<description>
|
|
Returns all subnames concatenated with a colon character ([code]:[/code]) as separator, i.e. the right side of the first colon in a node path.
|
|
[codeblock]
|
|
var nodepath = NodePath("Path2D/PathFollow2D/Sprite:texture:load_path")
|
|
print(nodepath.get_concatenated_subnames()) # texture:load_path
|
|
[/codeblock]
|
|
</description>
|
|
</method>
|
|
<method name="get_name">
|
|
<return type="String">
|
|
</return>
|
|
<argument index="0" name="idx" type="int">
|
|
</argument>
|
|
<description>
|
|
Get the node name indicated by [code]idx[/code] (0 to [method get_name_count]).
|
|
[codeblock]
|
|
var node_path = NodePath("Path2D/PathFollow2D/Sprite")
|
|
print(node_path.get_name(0)) # Path2D
|
|
print(node_path.get_name(1)) # PathFollow2D
|
|
print(node_path.get_name(2)) # Sprite
|
|
[/codeblock]
|
|
</description>
|
|
</method>
|
|
<method name="get_name_count">
|
|
<return type="int">
|
|
</return>
|
|
<description>
|
|
Get the number of node names which make up the path. Subnames (see [method get_subname_count]) are not included.
|
|
For example, [code]"Path2D/PathFollow2D/Sprite"[/code] has 3 names.
|
|
</description>
|
|
</method>
|
|
<method name="get_subname">
|
|
<return type="String">
|
|
</return>
|
|
<argument index="0" name="idx" type="int">
|
|
</argument>
|
|
<description>
|
|
Get the resource or property name indicated by [code]idx[/code] (0 to [method get_subname_count]).
|
|
[codeblock]
|
|
var node_path = NodePath("Path2D/PathFollow2D/Sprite:texture:load_path")
|
|
print(node_path.get_subname(0)) # texture
|
|
print(node_path.get_subname(1)) # load_path
|
|
[/codeblock]
|
|
</description>
|
|
</method>
|
|
<method name="get_subname_count">
|
|
<return type="int">
|
|
</return>
|
|
<description>
|
|
Get the number of resource or property names ("subnames") in the path. Each subname is listed after a colon character ([code]:[/code]) in the node path.
|
|
For example, [code]"Path2D/PathFollow2D/Sprite:texture:load_path"[/code] has 2 subnames.
|
|
</description>
|
|
</method>
|
|
<method name="is_absolute">
|
|
<return type="bool">
|
|
</return>
|
|
<description>
|
|
Returns [code]true[/code] if the node path is absolute (as opposed to relative), which means that it starts with a slash character ([code]/[/code]). Absolute node paths can be used to access the root node ([code]"/root"[/code]) or autoloads (e.g. [code]"/global"[/code] if a "global" autoload was registered).
|
|
</description>
|
|
</method>
|
|
<method name="is_empty">
|
|
<return type="bool">
|
|
</return>
|
|
<description>
|
|
Returns [code]true[/code] if the node path is empty.
|
|
</description>
|
|
</method>
|
|
</methods>
|
|
<constants>
|
|
</constants>
|
|
</class>
|