Add support for internal nodes

1 files changed, 21 insertions, 0 deletions

diff --git a/doc/classes/Node.xml b/doc/classes/Node.xml
index f5bc705ecb..f55c776e8c 100644
--- a/doc/classes/Node.xml
+++ b/doc/classes/Node.xml
@@ -109,9 +109,11 @@
 			<return type="void" />
 			<argument index="0" name="node" type="Node" />
 			<argument index="1" name="legible_unique_name" type="bool" default="false" />
+			<argument index="2" name="internal" type="int" enum="Node.InternalMode" default="0" />
 			<description>
 				Adds a child node. Nodes can have any number of children, but every child must have a unique name. Child nodes are automatically deleted when the parent node is deleted, so an entire scene can be removed by deleting its topmost node.
 				If [code]legible_unique_name[/code] is [code]true[/code], the child node will have a human-readable name based on the name of the node being instantiated instead of its type.
+				If [code]internal[/code] is different than [constant INTERNAL_MODE_DISABLED], the child will be added as internal node. Such nodes are ignored by methods like [method get_children], unless their parameter [code]include_internal[/code] is [code]true[/code].The intended usage is to hide the internal nodes from the user, so the user won't accidentally delete or modify them. Used by some GUI nodes, e.g. [ColorPicker]. See [enum InternalMode] for available modes.
 				[b]Note:[/b] If the child node already has a parent, the function will fail. Use [method remove_child] first to remove the node from its current parent. For example:
 				[codeblocks]
 				[gdscript]
@@ -141,6 +143,7 @@
 				Adds a [code]sibling[/code] node to current's node parent, at the same level as that node, right below it.
 				If [code]legible_unique_name[/code] is [code]true[/code], the child node will have a human-readable name based on the name of the node being instantiated instead of its type.
 				Use [method add_child] instead of this method if you don't need the child node to be added below a specific node in the list of children.
+				[b]Note:[/b] If this node is internal, the new sibling will be internal too (see [code]internal[/code] parameter in [method add_child]).
 			</description>
 		</method>
 		<method name="add_to_group">
@@ -200,22 +203,28 @@
 		<method name="get_child" qualifiers="const">
 			<return type="Node" />
 			<argument index="0" name="idx" type="int" />
+			<argument index="1" name="include_internal" type="bool" default="false" />
 			<description>
 				Returns a child node by its index (see [method get_child_count]). This method is often used for iterating all children of a node.
 				Negative indices access the children from the last one.
+				If [code]include_internal[/code] is [code]true[/code], internal children are skipped (see [code]internal[/code] parameter in [method add_child]).
 				To access a child node via its name, use [method get_node].
 			</description>
 		</method>
 		<method name="get_child_count" qualifiers="const">
 			<return type="int" />
+			<argument index="0" name="include_internal" type="bool" default="false" />
 			<description>
 				Returns the number of child nodes.
+				If [code]include_internal[/code] is [code]false[/code], internal children aren't counted (see [code]internal[/code] parameter in [method add_child]).
 			</description>
 		</method>
 		<method name="get_children" qualifiers="const">
 			<return type="Node[]" />
+			<argument index="0" name="include_internal" type="bool" default="false" />
 			<description>
 				Returns an array of references to node's children.
+				If [code]include_internal[/code] is [code]false[/code], the returned array won't include internal children (see [code]internal[/code] parameter in [method add_child]).
 			</description>
 		</method>
 		<method name="get_editor_description" qualifiers="const">
@@ -231,8 +240,10 @@
 		</method>
 		<method name="get_index" qualifiers="const">
 			<return type="int" />
+			<argument index="0" name="include_internal" type="bool" default="false" />
 			<description>
 				Returns the node's order in the scene tree branch. For example, if called on the first child node the position is [code]0[/code].
+				If [code]include_internal[/code] is [code]false[/code], the index won't take internal children into account, i.e. first non-internal child will have index of 0 (see [code]internal[/code] parameter in [method add_child]).
 			</description>
 		</method>
 		<method name="get_network_master" qualifiers="const">
@@ -460,6 +471,7 @@
 			<argument index="1" name="to_position" type="int" />
 			<description>
 				Moves a child node to a different position (order) among the other children. Since calls, signals, etc are performed by tree order, changing the order of children nodes may be useful.
+				[b]Note:[/b] Internal children can only be moved within their expected "internal range" (see [code]internal[/code] parameter in [method add_child]).
 			</description>
 		</method>
 		<method name="print_stray_nodes">
@@ -888,5 +900,14 @@
 			Duplicate using instancing.
 			An instance stays linked to the original so when the original changes, the instance changes too.
 		</constant>
+		<constant name="INTERNAL_MODE_DISABLED" value="0" enum="InternalMode">
+			Node will not be internal.
+		</constant>
+		<constant name="INTERNAL_MODE_FRONT" value="1" enum="InternalMode">
+			Node will be placed at the front of parent's node list, before any non-internal sibling.
+		</constant>
+		<constant name="INTERNAL_MODE_BACK" value="2" enum="InternalMode">
+			Node will be placed at the back of parent's node list, after any non-internal sibling.
+		</constant>
 	</constants>
 </class>