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Added more in-depth examples of NodePaths in API docs.

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willnationsdev 2019-11-13 12:08:39 -06:00
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doc/classes/NodePath.xml
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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. 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. 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. 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> </description>
<tutorials> <tutorials>
</tutorials> </tutorials>