Remove VisualScript module for 4.0

As announced in https://godotengine.org/article/godot-4-will-discontinue-visual-scripting,
Godot maintainers have agreed to discontinue the current implementation of
our VisualScript language.

The way it had been designed was not user-friendly enough and we did not
succeed in improving its usability to actually make it a good low-code
solution for users who need one.

So we prefer to remove it for Godot 4.0 and leave the door open for new,
innovative ideas around visual scripting, to be developed as plugins or
extensions now that Godot provides sufficient functionality for this
(notably via GDExtension and the godot-cpp C++ bindings).

The current module has been moved to a dedicated repository (with full Git
history extracted with `git filter-branch`):

https://github.com/godotengine/godot-visual-script

It can still be compiled as a C++ module (for now, but will likely require
work to be kept in sync with the engine repository), but our hope is that
contributors will port it to GDExtension (which is quite compatibile with
the existing C++ module code when using the godot-cpp C++ bindings).

1 files changed, 0 insertions, 357 deletions

diff --git a/modules/visual_script/doc_classes/VisualScript.xml b/modules/visual_script/doc_classes/VisualScript.xml
deleted file mode 100644
index ff6b7a8b5f..0000000000
--- a/modules/visual_script/doc_classes/VisualScript.xml
+++ /dev/null
@@ -1,357 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScript" inherits="Script" version="4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../../../doc/class.xsd">
-	<brief_description>
-		A script implemented in the Visual Script programming environment.
-	</brief_description>
-	<description>
-		A script implemented in the Visual Script programming environment. The script extends the functionality of all objects that instance it.
-		[method Object.set_script] extends an existing object, if that object's class matches one of the script's base classes.
-		You are most likely to use this class via the Visual Script editor or when writing plugins for it.
-	</description>
-	<tutorials>
-		<link title="VisualScript documentation index">$DOCS_URL/tutorials/scripting/visual_script/index.html</link>
-	</tutorials>
-	<methods>
-		<method name="add_custom_signal">
-			<return type="void" />
-			<param index="0" name="name" type="StringName" />
-			<description>
-				Add a custom signal with the specified name to the VisualScript.
-			</description>
-		</method>
-		<method name="add_function">
-			<return type="void" />
-			<param index="0" name="name" type="StringName" />
-			<param index="1" name="func_node_id" type="int" />
-			<description>
-				Add a function with the specified name to the VisualScript, and assign the root [VisualScriptFunction] node's id as [code]func_node_id[/code].
-			</description>
-		</method>
-		<method name="add_node">
-			<return type="void" />
-			<param index="0" name="id" type="int" />
-			<param index="1" name="node" type="VisualScriptNode" />
-			<param index="2" name="position" type="Vector2" default="Vector2(0, 0)" />
-			<description>
-				Add a node to the VisualScript.
-			</description>
-		</method>
-		<method name="add_variable">
-			<return type="void" />
-			<param index="0" name="name" type="StringName" />
-			<param index="1" name="default_value" type="Variant" default="null" />
-			<param index="2" name="export" type="bool" default="false" />
-			<description>
-				Add a variable to the VisualScript, optionally giving it a default value or marking it as exported.
-			</description>
-		</method>
-		<method name="custom_signal_add_argument">
-			<return type="void" />
-			<param index="0" name="name" type="StringName" />
-			<param index="1" name="type" type="int" enum="Variant.Type" />
-			<param index="2" name="argname" type="String" />
-			<param index="3" name="index" type="int" default="-1" />
-			<description>
-				Add an argument to a custom signal added with [method add_custom_signal].
-			</description>
-		</method>
-		<method name="custom_signal_get_argument_count" qualifiers="const">
-			<return type="int" />
-			<param index="0" name="name" type="StringName" />
-			<description>
-				Get the count of a custom signal's arguments.
-			</description>
-		</method>
-		<method name="custom_signal_get_argument_name" qualifiers="const">
-			<return type="String" />
-			<param index="0" name="name" type="StringName" />
-			<param index="1" name="argidx" type="int" />
-			<description>
-				Get the name of a custom signal's argument.
-			</description>
-		</method>
-		<method name="custom_signal_get_argument_type" qualifiers="const">
-			<return type="int" enum="Variant.Type" />
-			<param index="0" name="name" type="StringName" />
-			<param index="1" name="argidx" type="int" />
-			<description>
-				Get the type of a custom signal's argument.
-			</description>
-		</method>
-		<method name="custom_signal_remove_argument">
-			<return type="void" />
-			<param index="0" name="name" type="StringName" />
-			<param index="1" name="argidx" type="int" />
-			<description>
-				Remove a specific custom signal's argument.
-			</description>
-		</method>
-		<method name="custom_signal_set_argument_name">
-			<return type="void" />
-			<param index="0" name="name" type="StringName" />
-			<param index="1" name="argidx" type="int" />
-			<param index="2" name="argname" type="String" />
-			<description>
-				Rename a custom signal's argument.
-			</description>
-		</method>
-		<method name="custom_signal_set_argument_type">
-			<return type="void" />
-			<param index="0" name="name" type="StringName" />
-			<param index="1" name="argidx" type="int" />
-			<param index="2" name="type" type="int" enum="Variant.Type" />
-			<description>
-				Change the type of a custom signal's argument.
-			</description>
-		</method>
-		<method name="custom_signal_swap_argument">
-			<return type="void" />
-			<param index="0" name="name" type="StringName" />
-			<param index="1" name="argidx" type="int" />
-			<param index="2" name="withidx" type="int" />
-			<description>
-				Swap two of the arguments of a custom signal.
-			</description>
-		</method>
-		<method name="data_connect">
-			<return type="void" />
-			<param index="0" name="from_node" type="int" />
-			<param index="1" name="from_port" type="int" />
-			<param index="2" name="to_node" type="int" />
-			<param index="3" name="to_port" type="int" />
-			<description>
-				Connect two data ports. The value of [code]from_node[/code]'s [code]from_port[/code] would be fed into [code]to_node[/code]'s [code]to_port[/code].
-			</description>
-		</method>
-		<method name="data_disconnect">
-			<return type="void" />
-			<param index="0" name="from_node" type="int" />
-			<param index="1" name="from_port" type="int" />
-			<param index="2" name="to_node" type="int" />
-			<param index="3" name="to_port" type="int" />
-			<description>
-				Disconnect two data ports previously connected with [method data_connect].
-			</description>
-		</method>
-		<method name="get_function_node_id" qualifiers="const">
-			<return type="int" />
-			<param index="0" name="name" type="StringName" />
-			<description>
-				Returns the id of a function's entry point node.
-			</description>
-		</method>
-		<method name="get_node" qualifiers="const">
-			<return type="VisualScriptNode" />
-			<param index="0" name="id" type="int" />
-			<description>
-				Returns a node given its id.
-			</description>
-		</method>
-		<method name="get_node_position" qualifiers="const">
-			<return type="Vector2" />
-			<param index="0" name="id" type="int" />
-			<description>
-				Returns a node's position in pixels.
-			</description>
-		</method>
-		<method name="get_scroll" qualifiers="const">
-			<return type="Vector2" />
-			<description>
-				Returns the current position of the center of the screen.
-			</description>
-		</method>
-		<method name="get_variable_default_value" qualifiers="const">
-			<return type="Variant" />
-			<param index="0" name="name" type="StringName" />
-			<description>
-				Returns the default (initial) value of a variable.
-			</description>
-		</method>
-		<method name="get_variable_export" qualifiers="const">
-			<return type="bool" />
-			<param index="0" name="name" type="StringName" />
-			<description>
-				Returns whether a variable is exported.
-			</description>
-		</method>
-		<method name="get_variable_info" qualifiers="const">
-			<return type="Dictionary" />
-			<param index="0" name="name" type="StringName" />
-			<description>
-				Returns the information for a given variable as a dictionary. The information includes its name, type, hint and usage.
-			</description>
-		</method>
-		<method name="has_custom_signal" qualifiers="const">
-			<return type="bool" />
-			<param index="0" name="name" type="StringName" />
-			<description>
-				Returns whether a signal exists with the specified name.
-			</description>
-		</method>
-		<method name="has_data_connection" qualifiers="const">
-			<return type="bool" />
-			<param index="0" name="from_node" type="int" />
-			<param index="1" name="from_port" type="int" />
-			<param index="2" name="to_node" type="int" />
-			<param index="3" name="to_port" type="int" />
-			<description>
-				Returns whether the specified data ports are connected.
-			</description>
-		</method>
-		<method name="has_function" qualifiers="const">
-			<return type="bool" />
-			<param index="0" name="name" type="StringName" />
-			<description>
-				Returns whether a function exists with the specified name.
-			</description>
-		</method>
-		<method name="has_node" qualifiers="const">
-			<return type="bool" />
-			<param index="0" name="id" type="int" />
-			<description>
-				Returns whether a node exists with the given id.
-			</description>
-		</method>
-		<method name="has_sequence_connection" qualifiers="const">
-			<return type="bool" />
-			<param index="0" name="from_node" type="int" />
-			<param index="1" name="from_output" type="int" />
-			<param index="2" name="to_node" type="int" />
-			<description>
-				Returns whether the specified sequence ports are connected.
-			</description>
-		</method>
-		<method name="has_variable" qualifiers="const">
-			<return type="bool" />
-			<param index="0" name="name" type="StringName" />
-			<description>
-				Returns whether a variable exists with the specified name.
-			</description>
-		</method>
-		<method name="remove_custom_signal">
-			<return type="void" />
-			<param index="0" name="name" type="StringName" />
-			<description>
-				Remove a custom signal with the given name.
-			</description>
-		</method>
-		<method name="remove_function">
-			<return type="void" />
-			<param index="0" name="name" type="StringName" />
-			<description>
-				Remove a specific function and its nodes from the script.
-			</description>
-		</method>
-		<method name="remove_node">
-			<return type="void" />
-			<param index="0" name="id" type="int" />
-			<description>
-				Remove the node with the specified id.
-			</description>
-		</method>
-		<method name="remove_variable">
-			<return type="void" />
-			<param index="0" name="name" type="StringName" />
-			<description>
-				Remove a variable with the given name.
-			</description>
-		</method>
-		<method name="rename_custom_signal">
-			<return type="void" />
-			<param index="0" name="name" type="StringName" />
-			<param index="1" name="new_name" type="StringName" />
-			<description>
-				Change the name of a custom signal.
-			</description>
-		</method>
-		<method name="rename_function">
-			<return type="void" />
-			<param index="0" name="name" type="StringName" />
-			<param index="1" name="new_name" type="StringName" />
-			<description>
-				Change the name of a function.
-			</description>
-		</method>
-		<method name="rename_variable">
-			<return type="void" />
-			<param index="0" name="name" type="StringName" />
-			<param index="1" name="new_name" type="StringName" />
-			<description>
-				Change the name of a variable.
-			</description>
-		</method>
-		<method name="sequence_connect">
-			<return type="void" />
-			<param index="0" name="from_node" type="int" />
-			<param index="1" name="from_output" type="int" />
-			<param index="2" name="to_node" type="int" />
-			<description>
-				Connect two sequence ports. The execution will flow from of [code]from_node[/code]'s [code]from_output[/code] into [code]to_node[/code].
-				Unlike [method data_connect], there isn't a [code]to_port[/code], since the target node can have only one sequence port.
-			</description>
-		</method>
-		<method name="sequence_disconnect">
-			<return type="void" />
-			<param index="0" name="from_node" type="int" />
-			<param index="1" name="from_output" type="int" />
-			<param index="2" name="to_node" type="int" />
-			<description>
-				Disconnect two sequence ports previously connected with [method sequence_connect].
-			</description>
-		</method>
-		<method name="set_instance_base_type">
-			<return type="void" />
-			<param index="0" name="type" type="StringName" />
-			<description>
-				Set the base type of the script.
-			</description>
-		</method>
-		<method name="set_node_position">
-			<return type="void" />
-			<param index="0" name="id" type="int" />
-			<param index="1" name="position" type="Vector2" />
-			<description>
-				Set the node position in the VisualScript graph.
-			</description>
-		</method>
-		<method name="set_scroll">
-			<return type="void" />
-			<param index="0" name="offset" type="Vector2" />
-			<description>
-				Set the screen center to the given position.
-			</description>
-		</method>
-		<method name="set_variable_default_value">
-			<return type="void" />
-			<param index="0" name="name" type="StringName" />
-			<param index="1" name="value" type="Variant" />
-			<description>
-				Change the default (initial) value of a variable.
-			</description>
-		</method>
-		<method name="set_variable_export">
-			<return type="void" />
-			<param index="0" name="name" type="StringName" />
-			<param index="1" name="enable" type="bool" />
-			<description>
-				Change whether a variable is exported.
-			</description>
-		</method>
-		<method name="set_variable_info">
-			<return type="void" />
-			<param index="0" name="name" type="StringName" />
-			<param index="1" name="value" type="Dictionary" />
-			<description>
-				Set a variable's info, using the same format as [method get_variable_info].
-			</description>
-		</method>
-	</methods>
-	<signals>
-		<signal name="node_ports_changed">
-			<param index="0" name="id" type="int" />
-			<description>
-				Emitted when the ports of a node are changed.
-			</description>
-		</signal>
-	</signals>
-</class>