GH-811 Correctly initialize promoted variables

src/editor/graph/graph_node_pin.cpp

@@ -262,50 +262,36 @@ void OrchestratorGraphNodePin::_remove_editable_pin()
 
 void OrchestratorGraphNodePin::_promote_as_variable()
 {
-    Orchestration* orchestation = _node->get_script_node()->get_orchestration();
-
-    Ref<OScriptVariable> variable = orchestation->create_variable(_create_promoted_variable_name(), _pin->get_type());
+    Ref<OScriptVariable> variable = _node->get_script_node()->get_orchestration()->promote_to_variable(_pin);
     if (!variable.is_valid())
         return;
 
-    variable->set_default_value(_pin->get_effective_default_value());
-
     OScriptNodeInitContext context;
     context.variable_name = variable->get_variable_name();
 
-    Vector2 offset = Vector2(200, 25);
     Vector2 position = _node->get_script_node()->get_position();
-
     if (is_input())
     {
-        position -= offset;
+        position += get_graph_node()->get_input_port_position(_pin->get_pin_index());
+        position -= Vector2(250, 0);
+
         get_graph()->spawn_node<OScriptNodeVariableGet>(context, position,
             callable_mp_lambda(this, [&, this](const Ref<OScriptNodeVariableGet>& p_node) {
                 p_node->find_pin(0, PD_Output)->link(_pin);
             }));
     }
     else
     {
-        position += offset + Vector2(25, 0);
+        position += get_graph_node()->get_output_port_position(_pin->get_pin_index());
+        position += Vector2(75, 0);
+
         get_graph()->spawn_node<OScriptNodeVariableSet>(context, position,
             callable_mp_lambda(this, [&, this](const Ref<OScriptNodeVariableSet>& p_node) {
                 _pin->link(p_node->find_pin(1, PD_Input));
             }));
     }
 }
 
-String OrchestratorGraphNodePin::_create_promoted_variable_name()
-{
-    Orchestration* orchestration = _node->get_script_node()->get_orchestration();
-
-    int index = 0;
-    String name = _pin->get_pin_name() + itos(index++);
-    while (orchestration->has_variable(name))
-        name = _pin->get_pin_name() + itos(index++);
-
-    return name;
-}
-
 void OrchestratorGraphNodePin::_create_widgets()
 {
     _default_value = nullptr;

src/editor/graph/graph_node_pin.h

@@ -221,10 +221,6 @@ class OrchestratorGraphNodePin : public HBoxContainer
     /// Promote this pin to a variable
     void _promote_as_variable();
 
-    /// Creates a new variable name
-    /// @return the variable name
-    String _create_promoted_variable_name();
-
     /// Creates the pin's rendered icon
     /// @param p_visible whether the icon is visible
     /// @return the icon texture rect

src/orchestration/orchestration.cpp

@@ -856,6 +856,31 @@ bool Orchestration::can_remove_variable(const StringName& p_name) const
     return true;
 }
 
+Ref<OScriptVariable> Orchestration::promote_to_variable(const Ref<OScriptNodePin>& p_pin)
+{
+    int index = 0;
+    String name = vformat("%s_%d", p_pin->get_pin_name(), index++);
+    while (has_variable(name))
+        name = vformat("%s_%d", p_pin->get_pin_name(), index++);
+
+    Ref<OScriptVariable> variable = create_variable(name);
+    if (variable.is_valid())
+    {
+        ClassificationParser parser;
+        if (parser.parse(p_pin->get_property_info()))
+            variable->set_classification(parser.get_classification());
+
+        variable->set_default_value(p_pin->get_effective_default_value());
+
+        variable->emit_changed();
+        variable->notify_property_list_changed();
+
+        _self->emit_signal("variables_changed");
+    }
+
+    return variable;
+}
+
 bool Orchestration::has_custom_signal(const StringName& p_name) const
 {
     return _signals.has(p_name);

src/orchestration/orchestration.h

@@ -215,6 +215,7 @@ class Orchestration
     Vector<Ref<OScriptVariable>> get_variables() const;
     PackedStringArray get_variable_names() const;
     bool can_remove_variable(const StringName& p_name) const;
+    Ref<OScriptVariable> promote_to_variable(const Ref<OScriptNodePin>& p_pin);
     //~ End Variable Interface
 
     //~ Begin Signals Interface