Merge pull request #110 from limbonaut/type-validation

Editor: Check if variable is of correct type for BBParam subtypes

blackboard/bb_param/bb_node.h

@@ -17,10 +17,8 @@
 class BBNode : public BBParam {
 	GDCLASS(BBNode, BBParam);
 
-protected:
-	virtual Variant::Type get_type() const override { return Variant::NODE_PATH; }
-
 public:
+	virtual Variant::Type get_type() const override { return Variant::NODE_PATH; }
 	virtual Variant get_value(Node *p_scene_root, const Ref<Blackboard> &p_blackboard, const Variant &p_default = Variant()) override;
 };
 

blackboard/bb_param/bb_param.h

@@ -49,8 +49,6 @@ protected:
 	void _get_property_list(List<PropertyInfo> *p_list) const;
 
 public:
-	virtual Variant::Type get_type() const { return Variant::NIL; }
-
 	void set_value_source(ValueSource p_value);
 	ValueSource get_value_source() const { return value_source; }
 
@@ -66,6 +64,8 @@ public:
 	virtual String _to_string();
 #endif
 
+	virtual Variant::Type get_type() const { return Variant::NIL; }
+	virtual Variant::Type get_variable_expected_type() const { return get_type(); }
 	virtual Variant get_value(Node *p_scene_root, const Ref<Blackboard> &p_blackboard, const Variant &p_default = Variant());
 
 	BBParam();

blackboard/bb_param/bb_variant.h

@@ -27,6 +27,8 @@ public:
 	virtual Variant::Type get_type() const override;
 	void set_type(Variant::Type p_type);
 
+	virtual Variant::Type get_variable_expected_type() const override { return Variant::NIL; }
+
 	BBVariant(const Variant &p_value);
 	BBVariant();
 };

editor/editor_property_bb_param.cpp

@@ -283,6 +283,7 @@ void EditorPropertyBBParam::update_property() {
 	if (param->get_value_source() == BBParam::BLACKBOARD_VAR) {
 		_remove_value_editor();
 		variable_editor->set_object_and_property(param.ptr(), SNAME("variable"));
+		variable_editor->setup(plan, false, param->get_variable_expected_type());
 		variable_editor->update_property();
 		variable_editor->show();
 		bottom_container->hide();
@@ -300,7 +301,7 @@ void EditorPropertyBBParam::update_property() {
 void EditorPropertyBBParam::setup(PropertyHint p_hint, const String &p_hint_text, const Ref<BlackboardPlan> &p_plan) {
 	param_type = p_hint_text;
 	property_hint = p_hint;
-	variable_editor->setup(p_plan, false);
+	plan = p_plan;
 	variable_editor->set_name_split_ratio(0.0);
 }
 

editor/editor_property_bb_param.h

@@ -36,6 +36,7 @@ private:
 
 	bool initialized = false;
 
+	Ref<BlackboardPlan> plan;
 	StringName param_type;
 	PropertyHint property_hint = PROPERTY_HINT_NONE;
 

editor/editor_property_variable_name.cpp

@@ -96,7 +96,7 @@ void EditorPropertyVariableName::_update_status() {
 		} else {
 			BUTTON_SET_ICON(status_btn, theme_cache.var_error_icon);
 			status_btn->set_tooltip_text(TTR(vformat(
-					"The %s variable in the blackboard plan is not of the same type as this variable (expected %s).\nClick to open the blackboard plan and fix the variable type.",
+					"The %s variable in the blackboard plan should be of type %s.\nClick to open the blackboard plan.",
 					LimboUtility::get_singleton()->decorate_var(var_name),
 					Variant::get_type_name(expected_type))));
 		}