Merge pull request #17 from limbonaut/callmethod-improvements

Improvements for the `CallMethod` task:
- Allow storing return value on the blackboard
- Allows specifying variables from the blackboard as arguments in additions to raw values.

Also, improvements to BBParam property editor to better utilize space in the inspector.

WARNING: Breaks compatibility if you are using `CallMethod` tasks. `CallMethod` arguments in existing trees will need to be reassigned!

Resolves #13

blackboard/bb_param/bb_variant.cpp

@@ -39,5 +39,10 @@ void BBVariant::_bind_methods() {
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "type", PROPERTY_HINT_ENUM, vtypes), "set_type", "get_type");
 }
 
+BBVariant::BBVariant(const Variant &p_value) {
+	set_type(p_value.get_type());
+	set_saved_value(p_value);
+}
+
 BBVariant::BBVariant() {
 }

blackboard/bb_param/bb_variant.h

@@ -27,6 +27,7 @@ public:
 	virtual Variant::Type get_type() const override;
 	void set_type(Variant::Type p_type);
 
+	BBVariant(const Variant &p_value);
 	BBVariant();
 };
 

bt/tasks/utility/bt_call_method.cpp

@@ -12,6 +12,11 @@
 #include "bt_call_method.h"
 
 #include "../../../util/limbo_compat.h"
+#include "../../../util/limbo_utility.h"
+
+#ifdef LIMBOAI_GDEXTENSION
+#include "godot_cpp/classes/global_constants.hpp"
+#endif // LIMBOAI_GDEXTENSION
 
 //**** Setters / Getters
 
@@ -33,11 +38,16 @@ void BTCallMethod::set_include_delta(bool p_include_delta) {
 	emit_changed();
 }
 
-void BTCallMethod::set_args(Array p_args) {
+void BTCallMethod::set_args(TypedArray<BBVariant> p_args) {
 	args = p_args;
 	emit_changed();
 }
 
+void BTCallMethod::set_result_var(const String &p_result_var) {
+	result_var = p_result_var;
+	emit_changed();
+}
+
 //**** Task Implementation
 
 PackedStringArray BTCallMethod::get_configuration_warnings() {
@@ -63,10 +73,11 @@ String BTCallMethod::_generate_name() {
 		}
 		args_str += vformat("%s", args).trim_prefix("[").trim_suffix("]");
 	}
-	return vformat("CallMethod %s(%s)  node: %s",
-			(method != StringName() ? method : "???"),
+	return vformat("CallMethod %s(%s)  node: %s  %s",
+			method != StringName() ? method : "???",
 			args_str,
-			(node_param.is_valid() && !node_param->to_string().is_empty() ? node_param->to_string() : "???"));
+			node_param.is_valid() && !node_param->to_string().is_empty() ? node_param->to_string() : "???",
+			result_var.is_empty() ? "" : LW_NAME(output_var_prefix) + LimboUtility::get_singleton()->decorate_var(result_var));
 }
 
 BT::Status BTCallMethod::_tick(double p_delta) {
@@ -75,6 +86,9 @@ BT::Status BTCallMethod::_tick(double p_delta) {
 	Object *obj = node_param->get_value(get_agent(), get_blackboard());
 	ERR_FAIL_COND_V_MSG(obj == nullptr, FAILURE, "BTCallMethod: Failed to get object: " + node_param->to_string());
 
+	Variant result;
+	Array call_args;
+
 #ifdef LIMBOAI_MODULE
 	const Variant delta = include_delta ? Variant(p_delta) : Variant();
 	const Variant **argptrs = nullptr;
@@ -86,28 +100,34 @@ BT::Status BTCallMethod::_tick(double p_delta) {
 			argptrs[0] = &delta;
 		}
 		for (int i = 0; i < args.size(); i++) {
-			argptrs[i + int(include_delta)] = &args[i];
+			Ref<BBVariant> param = args[i];
+			call_args.push_back(param->get_value(get_agent(), get_blackboard()));
+			argptrs[i + int(include_delta)] = &call_args[i];
 		}
 	}
 
 	Callable::CallError ce;
-	obj->callp(method, argptrs, argument_count, ce);
+	result = obj->callp(method, argptrs, argument_count, ce);
 	if (ce.error != Callable::CallError::CALL_OK) {
 		ERR_FAIL_V_MSG(FAILURE, "BTCallMethod: Error calling method: " + Variant::get_call_error_text(obj, method, argptrs, argument_count, ce) + ".");
 	}
 #elif LIMBOAI_GDEXTENSION
-	Array call_args;
 	if (include_delta) {
 		call_args.push_back(Variant(p_delta));
-		call_args.append_array(args);
-	} else {
-		call_args = args;
+	}
+	for (int i = 0; i < args.size(); i++) {
+		Ref<BBVariant> param = args[i];
+		call_args.push_back(param->get_value(get_agent(), get_blackboard()));
 	}
 
 	// TODO: Unsure how to detect call error, so we return SUCCESS for now...
-	obj->callv(method, call_args);
+	result = obj->callv(method, call_args);
 #endif // LIMBOAI_MODULE & LIMBOAI_GDEXTENSION
 
+	if (!result_var.is_empty()) {
+		get_blackboard()->set_var(result_var, result);
+	}
+
 	return SUCCESS;
 }
 
@@ -122,12 +142,15 @@ void BTCallMethod::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("get_args"), &BTCallMethod::get_args);
 	ClassDB::bind_method(D_METHOD("set_include_delta", "p_include_delta"), &BTCallMethod::set_include_delta);
 	ClassDB::bind_method(D_METHOD("is_delta_included"), &BTCallMethod::is_delta_included);
+	ClassDB::bind_method(D_METHOD("set_result_var", "p_result_var"), &BTCallMethod::set_result_var);
+	ClassDB::bind_method(D_METHOD("get_result_var"), &BTCallMethod::get_result_var);
 
 	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "node", PROPERTY_HINT_RESOURCE_TYPE, "BBNode"), "set_node_param", "get_node_param");
 	ADD_PROPERTY(PropertyInfo(Variant::STRING_NAME, "method"), "set_method", "get_method");
+	ADD_PROPERTY(PropertyInfo(Variant::STRING, "result_var"), "set_result_var", "get_result_var");
 	ADD_GROUP("Arguments", "args_");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "args_include_delta"), "set_include_delta", "is_delta_included");
-	ADD_PROPERTY(PropertyInfo(Variant::ARRAY, "args"), "set_args", "get_args");
+	ADD_PROPERTY(PropertyInfo(Variant::ARRAY, "args", PROPERTY_HINT_ARRAY_TYPE, RESOURCE_TYPE_HINT("BBVariant")), "set_args", "get_args");
 
 	// ADD_PROPERTY_DEFAULT("args_include_delta", false);
 }

bt/tasks/utility/bt_call_method.h

@@ -15,6 +15,7 @@
 #include "../bt_action.h"
 
 #include "../../../blackboard/bb_param/bb_node.h"
+#include "../../../blackboard/bb_param/bb_variant.h"
 
 class BTCallMethod : public BTAction {
 	GDCLASS(BTCallMethod, BTAction);
@@ -23,8 +24,9 @@ class BTCallMethod : public BTAction {
 private:
 	StringName method;
 	Ref<BBNode> node_param;
-	Array args;
+	TypedArray<BBVariant> args;
 	bool include_delta = false;
+	String result_var;
 
 protected:
 	static void _bind_methods();
@@ -39,12 +41,15 @@ public:
 	void set_node_param(Ref<BBNode> p_object);
 	Ref<BBNode> get_node_param() const { return node_param; }
 
-	void set_args(Array p_args);
-	Array get_args() const { return args; }
+	void set_args(TypedArray<BBVariant> p_args);
+	TypedArray<BBVariant> get_args() const { return args; }
 
 	void set_include_delta(bool p_include_delta);
 	bool is_delta_included() const { return include_delta; }
 
+	void set_result_var(const String &p_result_var);
+	String get_result_var() const { return result_var; }
+
 	virtual PackedStringArray get_configuration_warnings() override;
 
 	BTCallMethod();

doc/source/classes/class_behaviortree.rst

@@ -114,9 +114,7 @@ Makes a copy of the BehaviorTree resource.
 
 void **copy_other** **(** :ref:`BehaviorTree<class_BehaviorTree>` p_other **)**
 
-.. container:: contribute
-
-	There is currently no description for this method. Please help us by :ref:`contributing one <doc_updating_the_class_reference>`!
+Become a copy of another behavior tree.
 
 .. rst-class:: classref-item-separator
 

doc/source/classes/class_btcallmethod.rst

@@ -31,15 +31,17 @@ Properties
 .. table::
    :widths: auto
 
-   +-----------------------------+---------------------------------------------------------------------------+-----------+
-   | Array                       | :ref:`args<class_BTCallMethod_property_args>`                             | ``[]``    |
-   +-----------------------------+---------------------------------------------------------------------------+-----------+
-   | bool                        | :ref:`args_include_delta<class_BTCallMethod_property_args_include_delta>` | ``false`` |
-   +-----------------------------+---------------------------------------------------------------------------+-----------+
-   | StringName                  | :ref:`method<class_BTCallMethod_property_method>`                         | ``&""``   |
-   +-----------------------------+---------------------------------------------------------------------------+-----------+
-   | :ref:`BBNode<class_BBNode>` | :ref:`node<class_BTCallMethod_property_node>`                             |           |
-   +-----------------------------+---------------------------------------------------------------------------+-----------+
+   +-------------------------------------+---------------------------------------------------------------------------+-----------+
+   | :ref:`BBVariant[]<class_BBVariant>` | :ref:`args<class_BTCallMethod_property_args>`                             | ``[]``    |
+   +-------------------------------------+---------------------------------------------------------------------------+-----------+
+   | bool                                | :ref:`args_include_delta<class_BTCallMethod_property_args_include_delta>` | ``false`` |
+   +-------------------------------------+---------------------------------------------------------------------------+-----------+
+   | StringName                          | :ref:`method<class_BTCallMethod_property_method>`                         | ``&""``   |
+   +-------------------------------------+---------------------------------------------------------------------------+-----------+
+   | :ref:`BBNode<class_BBNode>`         | :ref:`node<class_BTCallMethod_property_node>`                             |           |
+   +-------------------------------------+---------------------------------------------------------------------------+-----------+
+   | String                              | :ref:`result_var<class_BTCallMethod_property_result_var>`                 | ``""``    |
+   +-------------------------------------+---------------------------------------------------------------------------+-----------+
 
 .. rst-class:: classref-section-separator
 
@@ -54,12 +56,12 @@ Property Descriptions
 
 .. rst-class:: classref-property
 
-Array **args** = ``[]``
+:ref:`BBVariant[]<class_BBVariant>` **args** = ``[]``
 
 .. rst-class:: classref-property-setget
 
-- void **set_args** **(** Array value **)**
-- Array **get_args** **(** **)**
+- void **set_args** **(** :ref:`BBVariant[]<class_BBVariant>` value **)**
+- :ref:`BBVariant[]<class_BBVariant>` **get_args** **(** **)**
 
 The arguments to be passed when calling the method.
 
@@ -114,6 +116,23 @@ The name of the method to be called.
 
 Specifies the ``Node`` or ``Object`` instance containing the method to be called.
 
+.. rst-class:: classref-item-separator
+
+----
+
+.. _class_BTCallMethod_property_result_var:
+
+.. rst-class:: classref-property
+
+String **result_var** = ``""``
+
+.. rst-class:: classref-property-setget
+
+- void **set_result_var** **(** String value **)**
+- String **get_result_var** **(** **)**
+
+if non-empty, assign the result of the method call to the blackboard variable specified by this property.
+
 .. |virtual| replace:: :abbr:`virtual (This method should typically be overridden by the user to have any effect.)`
 .. |const| replace:: :abbr:`const (This method has no side effects. It doesn't modify any of the instance's member variables.)`
 .. |vararg| replace:: :abbr:`vararg (This method accepts any number of arguments after the ones described here.)`

doc/source/classes/class_bttask.rst

@@ -64,7 +64,7 @@ Methods
    +-------------------------------+------------------------------------------------------------------------------------------------------------------------------+
    | String                        | :ref:`_generate_name<class_BTTask_private_method__generate_name>` **(** **)** |virtual| |const|                              |
    +-------------------------------+------------------------------------------------------------------------------------------------------------------------------+
-   | PackedStringArray             | :ref:`_get_configuration_warning<class_BTTask_private_method__get_configuration_warning>` **(** **)** |virtual| |const|      |
+   | PackedStringArray             | :ref:`_get_configuration_warnings<class_BTTask_private_method__get_configuration_warnings>` **(** **)** |virtual| |const|    |
    +-------------------------------+------------------------------------------------------------------------------------------------------------------------------+
    | void                          | :ref:`_setup<class_BTTask_private_method__setup>` **(** **)** |virtual|                                                      |
    +-------------------------------+------------------------------------------------------------------------------------------------------------------------------+
@@ -249,11 +249,11 @@ Called to generate a display name for the task unless :ref:`custom_name<class_BT
 
 ----
 
-.. _class_BTTask_private_method__get_configuration_warning:
+.. _class_BTTask_private_method__get_configuration_warnings:
 
 .. rst-class:: classref-method
 
-PackedStringArray **_get_configuration_warning** **(** **)** |virtual| |const|
+PackedStringArray **_get_configuration_warnings** **(** **)** |virtual| |const|
 
 The string returned by this method is shown as a warning message in the behavior tree editor. Any task script that overrides this method must include ``@tool`` annotation at the top of the file.
 

doc_classes/BTCallMethod.xml

@@ -10,7 +10,7 @@
 	<tutorials>
 	</tutorials>
 	<members>
-		<member name="args" type="Array" setter="set_args" getter="get_args" default="[]">
+		<member name="args" type="BBVariant[]" setter="set_args" getter="get_args" default="[]">
 			The arguments to be passed when calling the method.
 		</member>
 		<member name="args_include_delta" type="bool" setter="set_include_delta" getter="is_delta_included" default="false">
@@ -22,5 +22,8 @@
 		<member name="node" type="BBNode" setter="set_node_param" getter="get_node_param">
 			Specifies the [Node] or [Object] instance containing the method to be called.
 		</member>
+		<member name="result_var" type="String" setter="set_result_var" getter="get_result_var" default="&quot;&quot;">
+			if non-empty, assign the result of the method call to the blackboard variable specified by this property.
+		</member>
 	</members>
 </class>

doc_classes/BTTask.xml

@@ -31,7 +31,7 @@
 				Called to generate a display name for the task unless [member custom_name] is set. See [method get_task_name].
 			</description>
 		</method>
-		<method name="_get_configuration_warning" qualifiers="virtual const">
+		<method name="_get_configuration_warnings" qualifiers="virtual const">
 			<return type="PackedStringArray" />
 			<description>
 				The string returned by this method is shown as a warning message in the behavior tree editor. Any task script that overrides this method must include [code]@tool[/code] annotation at the top of the file.
@@ -126,7 +126,7 @@
 				Returns the root task of the behavior tree.
 			</description>
 		</method>
-		<method name="get_task_name" qualifiers="const">
+		<method name="get_task_name">
 			<return type="String" />
 			<description>
 				The string returned by this method is used to represent the task in the editor.
@@ -169,7 +169,7 @@
 				Returns [code]null[/code] if this task has no parent or it is the last child in the parent's children list.
 			</description>
 		</method>
-		<method name="print_tree" qualifiers="const">
+		<method name="print_tree">
 			<return type="void" />
 			<param index="0" name="p_initial_tabs" type="int" default="0" />
 			<description>

doc_classes/BehaviorTree.xml

@@ -21,6 +21,13 @@
 				Makes a copy of the BehaviorTree resource.
 			</description>
 		</method>
+		<method name="copy_other">
+			<return type="void" />
+			<param index="0" name="p_other" type="BehaviorTree" />
+			<description>
+				Become a copy of another behavior tree.
+			</description>
+		</method>
 		<method name="get_root_task" qualifiers="const">
 			<return type="BTTask" />
 			<description>

editor/editor_property_bb_param.cpp

@@ -15,7 +15,6 @@
 
 #include "editor_property_bb_param.h"
 
-#include "core/variant/variant.h"
 #include "modules/limboai/blackboard/bb_param/bb_param.h"
 #include "modules/limboai/blackboard/bb_param/bb_variant.h"
 #include "modules/limboai/editor/mode_switch_button.h"
@@ -23,9 +22,11 @@
 #include "core/error/error_macros.h"
 #include "core/io/marshalls.h"
 #include "core/object/class_db.h"
+#include "core/object/object.h"
 #include "core/object/ref_counted.h"
 #include "core/os/memory.h"
 #include "core/string/print_string.h"
+#include "core/variant/variant.h"
 #include "editor/editor_inspector.h"
 #include "editor/editor_properties.h"
 #include "editor/editor_properties_array_dict.h"
@@ -55,6 +56,8 @@ void EditorPropertyBBParam::_create_value_editor(Variant::Type p_type) {
 		_remove_value_editor();
 	}
 
+	bool is_bottom = false;
+
 	switch (p_type) {
 		case Variant::NIL: {
 			value_editor = memnew(EditorPropertyNil);
@@ -78,6 +81,7 @@ void EditorPropertyBBParam::_create_value_editor(Variant::Type p_type) {
 			} else {
 				value_editor = memnew(EditorPropertyText);
 			}
+			is_bottom = (property_hint == PROPERTY_HINT_MULTILINE_TEXT);
 		} break;
 		case Variant::VECTOR2: {
 			EditorPropertyVector2 *editor = memnew(EditorPropertyVector2);
@@ -93,66 +97,79 @@ void EditorPropertyBBParam::_create_value_editor(Variant::Type p_type) {
 			EditorPropertyRect2 *editor = memnew(EditorPropertyRect2);
 			editor->setup(-100000, 100000, EDITOR_GET("interface/inspector/default_float_step"), true);
 			value_editor = editor;
+			is_bottom = true;
 		} break;
 		case Variant::RECT2I: {
 			EditorPropertyRect2i *editor = memnew(EditorPropertyRect2i);
 			editor->setup(-100000, 100000);
 			value_editor = editor;
+			is_bottom = true;
 		} break;
 		case Variant::VECTOR3: {
 			EditorPropertyVector3 *editor = memnew(EditorPropertyVector3);
 			editor->setup(-100000, 100000, EDITOR_GET("interface/inspector/default_float_step"), true);
 			value_editor = editor;
+			is_bottom = true;
 		} break;
 		case Variant::VECTOR3I: {
 			EditorPropertyVector3i *editor = memnew(EditorPropertyVector3i);
 			editor->setup(-100000, 100000);
 			value_editor = editor;
+			is_bottom = true;
 		} break;
 		case Variant::VECTOR4: {
 			EditorPropertyVector4 *editor = memnew(EditorPropertyVector4);
 			editor->setup(-100000, 100000, EDITOR_GET("interface/inspector/default_float_step"), true);
 			value_editor = editor;
+			is_bottom = true;
 		} break;
 		case Variant::VECTOR4I: {
 			EditorPropertyVector4i *editor = memnew(EditorPropertyVector4i);
 			editor->setup(-100000, 100000);
 			value_editor = editor;
+			is_bottom = true;
 		} break;
 		case Variant::TRANSFORM2D: {
 			EditorPropertyTransform2D *editor = memnew(EditorPropertyTransform2D);
 			editor->setup(-100000, 100000, EDITOR_GET("interface/inspector/default_float_step"), true);
 			value_editor = editor;
+			is_bottom = true;
 		} break;
 		case Variant::PLANE: {
 			EditorPropertyPlane *editor = memnew(EditorPropertyPlane);
 			editor->setup(-100000, 100000, EDITOR_GET("interface/inspector/default_float_step"), true);
 			value_editor = editor;
+			is_bottom = true;
 		} break;
 		case Variant::QUATERNION: {
 			EditorPropertyQuaternion *editor = memnew(EditorPropertyQuaternion);
 			editor->setup(-100000, 100000, EDITOR_GET("interface/inspector/default_float_step"), true);
 			value_editor = editor;
+			is_bottom = true;
 		} break;
 		case Variant::AABB: {
 			EditorPropertyAABB *editor = memnew(EditorPropertyAABB);
 			editor->setup(-100000, 100000, EDITOR_GET("interface/inspector/default_float_step"), true);
 			value_editor = editor;
+			is_bottom = true;
 		} break;
 		case Variant::BASIS: {
 			EditorPropertyBasis *editor = memnew(EditorPropertyBasis);
 			editor->setup(-100000, 100000, EDITOR_GET("interface/inspector/default_float_step"), true);
 			value_editor = editor;
+			is_bottom = true;
 		} break;
 		case Variant::TRANSFORM3D: {
 			EditorPropertyTransform3D *editor = memnew(EditorPropertyTransform3D);
 			editor->setup(-100000, 100000, EDITOR_GET("interface/inspector/default_float_step"), true);
 			value_editor = editor;
+			is_bottom = true;
 		} break;
 		case Variant::PROJECTION: {
 			EditorPropertyProjection *editor = memnew(EditorPropertyProjection);
 			editor->setup(-100000, 100000, EDITOR_GET("interface/inspector/default_float_step"), true);
 			value_editor = editor;
+			is_bottom = true;
 		} break;
 		case Variant::COLOR: {
 			value_editor = memnew(EditorPropertyColor);
@@ -161,6 +178,7 @@ void EditorPropertyBBParam::_create_value_editor(Variant::Type p_type) {
 			EditorPropertyText *editor = memnew(EditorPropertyText);
 			editor->set_string_name(true);
 			value_editor = editor;
+			is_bottom = (property_hint == PROPERTY_HINT_MULTILINE_TEXT);
 		} break;
 		case Variant::NODE_PATH: {
 			value_editor = memnew(EditorPropertyNodePath);
@@ -176,9 +194,11 @@ void EditorPropertyBBParam::_create_value_editor(Variant::Type p_type) {
 			EditorPropertyResource *editor = memnew(EditorPropertyResource);
 			editor->setup(_get_edited_param().ptr(), SNAME("saved_value"), "Resource");
 			value_editor = editor;
+			is_bottom = true;
 		} break;
 		case Variant::DICTIONARY: {
 			value_editor = memnew(EditorPropertyDictionary);
+			is_bottom = true;
 		} break;
 
 		case Variant::ARRAY:
@@ -194,6 +214,7 @@ void EditorPropertyBBParam::_create_value_editor(Variant::Type p_type) {
 			EditorPropertyArray *editor = memnew(EditorPropertyArray);
 			editor->setup(p_type);
 			value_editor = editor;
+			is_bottom = true;
 		} break;
 
 		default: {
@@ -202,15 +223,25 @@ void EditorPropertyBBParam::_create_value_editor(Variant::Type p_type) {
 		}
 	}
 	value_editor->set_name_split_ratio(0.0);
-	editor_hbox->add_child(value_editor);
+	value_editor->set_use_folding(is_using_folding());
+	value_editor->set_selectable(false);
 	value_editor->set_h_size_flags(SIZE_EXPAND_FILL);
 	value_editor->set_meta(SNAME("_param_type"), p_type);
 	value_editor->connect(SNAME("property_changed"), callable_mp(this, &EditorPropertyBBParam::_value_edited));
+	if (is_bottom) {
+		bottom_container->add_child(value_editor);
+		set_bottom_editor(bottom_container);
+		bottom_container->show();
+	} else {
+		set_bottom_editor(nullptr);
+		editor_hbox->add_child(value_editor);
+		bottom_container->hide();
+	}
 }
 
 void EditorPropertyBBParam::_remove_value_editor() {
 	if (value_editor) {
-		editor_hbox->remove_child(value_editor);
+		value_editor->get_parent()->remove_child(value_editor);
 		value_editor->queue_free();
 		value_editor = nullptr;
 	}
@@ -245,15 +276,15 @@ void EditorPropertyBBParam::update_property() {
 		variable_edit->set_text(param->get_variable());
 		variable_edit->set_editable(true);
 		variable_edit->show();
-		mode_button->set_mode(Mode::BIND_VAR, true);
+		mode_button->call_deferred(SNAME("set_mode"), Mode::BIND_VAR, true);
 		type_choice->hide();
 	} else {
-		variable_edit->hide();
 		_create_value_editor(param->get_type());
+		variable_edit->hide();
 		value_editor->show();
 		value_editor->set_object_and_property(param.ptr(), SNAME("saved_value"));
-		mode_button->set_mode(Mode::SPECIFY_VALUE, true);
 		value_editor->update_property();
+		mode_button->call_deferred(SNAME("set_mode"), Mode::SPECIFY_VALUE, true);
 		type_choice->set_visible(is_variant_param);
 	}
 
@@ -308,6 +339,10 @@ EditorPropertyBBParam::EditorPropertyBBParam() {
 	add_child(hbox);
 	hbox->add_theme_constant_override(SNAME("separation"), 0);
 
+	bottom_container = memnew(MarginContainer);
+	bottom_container->set_theme_type_variation("MarginContainer4px");
+	add_child(bottom_container);
+
 	mode_button = memnew(ModeSwitchButton);
 	hbox->add_child(mode_button);
 	mode_button->set_focus_mode(FOCUS_NONE);

editor/editor_property_bb_param.h

@@ -22,6 +22,7 @@
 #include "modules/limboai/editor/mode_switch_button.h"
 
 #include "scene/gui/box_container.h"
+#include "scene/gui/margin_container.h"
 #include "scene/gui/menu_button.h"
 
 class EditorPropertyBBParam : public EditorProperty {
@@ -38,6 +39,7 @@ private:
 	Mode mode = Mode::SPECIFY_VALUE;
 
 	HBoxContainer *hbox = nullptr;
+	MarginContainer *bottom_container = nullptr;
 	HBoxContainer *editor_hbox = nullptr;
 	ModeSwitchButton *mode_button = nullptr;
 	EditorProperty *value_editor = nullptr;

gdextension/update_rst.sh

@@ -0,0 +1,21 @@
+#!/bin/sh
+
+usage () { echo -e "Usage: Call from the Godot source root to update LimboAI rst class documentation."; }
+msg () {  echo -e "$@"; }
+
+set -e
+
+if [ ! -d "${PWD}/modules/limboai" ]; then
+    usage
+    exit 1
+fi
+
+rm -rf /tmp/rst
+./doc/tools/make_rst.py --output /tmp/rst doc/tools doc/classes/@GlobalScope.xml modules/limboai/doc_classes || /bin/true
+msg Removing old rst class documentation...
+rm ./modules/limboai/doc/source/classes/class_*
+msg Copying new rst class documentation...
+cp -r -f /tmp/rst/class_* modules/limboai/doc/source/classes/
+msg Cleaning up...
+rm modules/limboai/doc/source/classes/class_@globalscope.rst
+msg Done!

tests/test_call_method.h

@@ -70,7 +70,7 @@ TEST_CASE("[Modules][LimboAI] BTCallMethod") {
 
 			SUBCASE("Should fail with 0 arguments") {
 				cm->set_include_delta(false);
-				cm->set_args(Array());
+				cm->set_args(TypedArray<BBVariant>());
 				ERR_PRINT_OFF;
 				CHECK(cm->execute(0.01666) == BTTask::FAILURE);
 				ERR_PRINT_ON;
@@ -78,8 +78,8 @@ TEST_CASE("[Modules][LimboAI] BTCallMethod") {
 			}
 			SUBCASE("Should fail with too many arguments") {
 				cm->set_include_delta(true);
-				Array args;
-				args.push_back(0.2);
+				TypedArray<BBVariant> args;
+				args.push_back(memnew(BBVariant(0.2)));
 				cm->set_args(args);
 				ERR_PRINT_OFF;
 				CHECK(cm->execute(0.01666) == BTTask::FAILURE);
@@ -88,8 +88,8 @@ TEST_CASE("[Modules][LimboAI] BTCallMethod") {
 			}
 			SUBCASE("Should fail with a wrong type arg") {
 				cm->set_include_delta(false);
-				Array args;
-				args.push_back("wrong_data");
+				TypedArray<BBVariant> args;
+				args.push_back(memnew(BBVariant("wrong data type")));
 				cm->set_args(args);
 				ERR_PRINT_OFF;
 				CHECK(cm->execute(0.01666) == BTTask::FAILURE);
@@ -98,14 +98,13 @@ TEST_CASE("[Modules][LimboAI] BTCallMethod") {
 			}
 			SUBCASE("Should succeed with delta included") {
 				cm->set_include_delta(true);
-				cm->set_args(Array());
 				CHECK(cm->execute(0.01666) == BTTask::SUCCESS);
 				CHECK(callback_counter->num_callbacks == 1);
 			}
 			SUBCASE("Should succeed with one float arg") {
 				cm->set_include_delta(false);
-				Array args;
-				args.push_back(0.2);
+				TypedArray<BBVariant> args;
+				args.push_back(memnew(BBVariant(0.2)));
 				cm->set_args(args);
 				CHECK(cm->execute(0.01666) == BTTask::SUCCESS);
 				CHECK(callback_counter->num_callbacks == 1);

util/limbo_compat.h

@@ -170,6 +170,7 @@ inline void VARIANT_DELETE_IF_OBJECT(Variant m_variant) {
 
 #define PROJECT_CONFIG_FILE() GET_PROJECT_SETTINGS_DIR().path_join("limbo_ai.cfg")
 #define IS_RESOURCE_FILE(m_path) (m_path.begins_with("res://") && m_path.find("::") == -1)
+#define RESOURCE_TYPE_HINT(m_type) vformat("%s/%s:%s", Variant::OBJECT, PROPERTY_HINT_RESOURCE_TYPE, m_type)
 
 #ifdef TOOLS_ENABLED
 

util/limbo_string_names.cpp

@@ -136,4 +136,5 @@ LimboStringNames::LimboStringNames() {
 
 	EVENT_FINISHED = "finished";
 	repeat_forever.parse_utf8("Repeat ∞");
+	output_var_prefix.parse_utf8("➜");
 }

util/limbo_string_names.h

@@ -151,6 +151,7 @@ public:
 
 	String EVENT_FINISHED;
 	String repeat_forever;
+	String output_var_prefix;
 };
 
 #define LW_NAME(m_arg) LimboStringNames::get_singleton()->m_arg