Implement GaeaGraph deep duplication and add duplicate button

addons/gaea/editor/panel.gd

@@ -27,9 +27,11 @@ var _dragged_from_left: bool = false
 @onready var _search_bar: LineEdit = %SearchBar
 @onready var _save_button: Button = %SaveButton
 @onready var _load_button: Button = %LoadButton
+@onready var _duplicate_button: Button = %DuplicateButton
 @onready var _reload_node_tree_button: Button = %ReloadNodeTreeButton
 @onready var _reload_parameters_list_button: Button = %ReloadParametersListButton
-@onready var _file_dialog: FileDialog = $FileDialog
+@onready var _file_open_dialog: FileDialog = $OpenFileDialog
+@onready var _file_save_dialog: FileDialog = $SaveFileDialog
 @onready var _online_docs_button: Button = %OnlineDocsButton
 @onready var _window_popout_separator: VSeparator = %WindowPopoutSeparator
 @onready var _window_popout_button: Button = %WindowPopoutButton
@@ -51,6 +53,9 @@ func _ready() -> void:
 	_reload_parameters_list_button.icon = preload("uid://cwg7oy4i2cbwq")
 	_save_button.icon = EditorInterface.get_base_control().get_theme_icon(&"Save", &"EditorIcons")
 	_load_button.icon = EditorInterface.get_base_control().get_theme_icon(&"Load", &"EditorIcons")
+	_duplicate_button.icon = EditorInterface.get_base_control().get_theme_icon(
+		&"Duplicate", &"EditorIcons"
+	)
 	_window_popout_button.icon = EditorInterface.get_base_control().get_theme_icon(
 		&"MakeFloating", &"EditorIcons"
 	)
@@ -534,6 +539,10 @@ func _on_graph_edit_connection_from_empty(
 
 
 #region Buttons
+func _on_duplicate_button_pressed() -> void:
+	_file_save_dialog.popup_centered()
+
+
 func _on_generate_button_pressed() -> void:
 	_selected_generator.generate()
 
@@ -542,13 +551,18 @@ func _on_reload_node_tree_button_pressed() -> void:
 	_create_node_tree.populate()
 
 func _on_load_button_pressed() -> void:
-	_file_dialog.popup_centered()
+	_file_open_dialog.popup_centered()
 
 
-func _on_file_dialog_file_selected(path: String) -> void:
+func _on_open_file_dialog_selected(path: String) -> void:
 	_selected_generator.data = load(path)
 
 
+func _on_save_file_dialog_selected(path: String) -> void:
+	var copy: GaeaGraph = _selected_generator.data.duplicate_deep(Resource.DEEP_DUPLICATE_INTERNAL)
+	ResourceSaver.save(copy, path)
+
+
 func _on_reload_parameters_list_button_pressed() -> void:
 	if (
 		not is_instance_valid(_selected_generator)

addons/gaea/editor/panel.tscn

@@ -128,14 +128,19 @@ flat = true
 
 [node name="LoadButton" type="Button" parent="Editor/VBoxContainer/HBoxContainer"]
 unique_name_in_owner = true
-visible = false
 layout_mode = 2
-tooltip_text = "Load data."
+tooltip_text = "Assign a graph to this generator."
 icon = SubResource("ImageTexture_ve3i7")
 flat = true
 
+[node name="DuplicateButton" type="Button" parent="Editor/VBoxContainer/HBoxContainer"]
+unique_name_in_owner = true
+layout_mode = 2
+size_flags_horizontal = 8
+tooltip_text = "Duplicate this graph."
+flat = true
+
 [node name="VSeparator" type="VSeparator" parent="Editor/VBoxContainer/HBoxContainer"]
-visible = false
 layout_mode = 2
 
 [node name="ReloadNodeTreeButton" type="Button" parent="Editor/VBoxContainer/HBoxContainer"]
@@ -373,19 +378,25 @@ item_0/id = 0
 script = ExtResource("7_dhpru")
 graph_edit = NodePath("../VBoxContainer/GraphEdit")
 
-[node name="FileDialog" type="FileDialog" parent="."]
+[node name="OpenFileDialog" type="FileDialog" parent="."]
 title = "Open a File"
 ok_button_text = "Open"
 file_mode = 0
 filters = PackedStringArray("*.tres,*.res;Resources")
 
+[node name="SaveFileDialog" type="FileDialog" parent="."]
+auto_translate_mode = 1
+title = "Save a Copy"
+filters = PackedStringArray("*.tres,*.res;Resources")
+
 [node name="AboutWindow" parent="." instance=ExtResource("9_affj1")]
 visible = false
 exclusive = true
 
 [connection signal="pressed" from="NoData/NewDataButton" to="." method="_on_new_data_button_pressed"]
 [connection signal="pressed" from="Editor/VBoxContainer/HBoxContainer/SaveButton" to="." method="_on_save_button_pressed"]
 [connection signal="pressed" from="Editor/VBoxContainer/HBoxContainer/LoadButton" to="." method="_on_load_button_pressed"]
+[connection signal="pressed" from="Editor/VBoxContainer/HBoxContainer/DuplicateButton" to="." method="_on_duplicate_button_pressed"]
 [connection signal="pressed" from="Editor/VBoxContainer/HBoxContainer/ReloadNodeTreeButton" to="." method="_on_reload_node_tree_button_pressed"]
 [connection signal="pressed" from="Editor/VBoxContainer/HBoxContainer/ReloadParametersListButton" to="." method="_on_reload_parameters_list_button_pressed"]
 [connection signal="pressed" from="Editor/VBoxContainer/HBoxContainer/GenerateButton" to="." method="_on_generate_button_pressed"]
@@ -413,4 +424,5 @@ exclusive = true
 [connection signal="pressed" from="Editor/CreateNodePopup/MainContentContainer/VBox/HBoxContainer/CreateButton" to="Editor/CreateNodePopup/MainContentContainer/VBox/CreateNodeTree" method="_on_create_button_pressed"]
 [connection signal="create_node_popup_requested" from="Editor/NodePopup" to="." method="_popup_create_node_menu_at_mouse"]
 [connection signal="new_reroute_requested" from="Editor/LinkPopup" to="." method="_on_new_reroute_requested"]
-[connection signal="file_selected" from="FileDialog" to="." method="_on_file_dialog_file_selected"]
+[connection signal="file_selected" from="OpenFileDialog" to="." method="_on_open_file_dialog_selected"]
+[connection signal="file_selected" from="SaveFileDialog" to="." method="_on_save_file_dialog_selected"]

addons/gaea/resources/gaea_graph.gd

@@ -72,7 +72,10 @@ var scroll_offset: Vector2 = Vector2(NAN, NAN)
 ## in the current session.
 var zoom: float = 1.0
 ## The currently related generator.
-var generator: GaeaGenerator
+var generator: GaeaGenerator :
+	set(value):
+		generator = value
+		_refresh()
 ## Cache used during generation to avoid recalculating data unnecessarily.
 ## The inner dictionary keys are the slot output port names, and the values are the cached data.
 var cache: Dictionary[GaeaNodeResource, Dictionary] = {}
@@ -83,7 +86,12 @@ var _resources: Dictionary[int, GaeaNodeResource]
 
 
 func _init() -> void:
+	_refresh()
+
+
+func _refresh() -> void:
 	resource_local_to_scene = true
+	_setup_local_to_scene()
 	notify_property_list_changed()
 
 
@@ -217,6 +225,11 @@ func get_ids() -> Array[int]:
 	return _node_data.keys()
 
 
+## Returns all node data.
+func get_all_node_data() -> Dictionary[int, Dictionary]:
+	return _node_data
+
+
 ## Returns an available id.
 func get_next_available_id() -> int:
 	var ids := get_ids()
@@ -280,6 +293,11 @@ func get_all_connections() -> Array[Dictionary]:
 	return all_connections
 
 
+## Returns all connections in the graph in the form "from_node-from_port-to_node-to_port" (ex.: 1-0-2-1)
+func get_raw_connections() -> Array[StringName]:
+	return _connections
+
+
 ## Returns all connections to and from the specified node as dictionaries.
 func get_node_connections(id: int) -> Array[Dictionary]:
 	return get_connections_to(id) + get_connections_from(id)
@@ -411,6 +429,13 @@ func _setup_local_to_scene() -> void:
 		GaeaGraphMigration.migrate(self)
 
 	_resources.clear()
+	var uniques = _get_unique_resources()
+	for id in uniques.keys():
+		_resources.set(id, uniques[id])
+
+
+func _get_unique_resources() -> Dictionary[Variant, GaeaNodeResource]:
+	var uniques: Dictionary[Variant, GaeaNodeResource] = {}
 	for id in _node_data.keys():
 		var base_uid: String = get_node_data(id).get(&"uid", "")
 		if base_uid.is_empty():
@@ -419,6 +444,7 @@ func _setup_local_to_scene() -> void:
 		var resource: GaeaNodeResource = load(base_uid).new()
 		if not resource is GaeaNodeResource:
 			push_error("Something went wrong, the resource at %s is not a GaeaNodeResource" % base_uid)
-			return
+			return uniques
 		resource._load_save_data(data)
-		_resources.set(id, resource)
+		uniques.set(id, resource)
+	return uniques

scenes/walker_demo/walker_demo.gd

@@ -1,13 +1,11 @@
 extends Node2D
-
+class_name WalkerDemo
 
 @onready var gaea_generator: GaeaGenerator = $GaeaGenerator
 
 var last_grid: GaeaGrid
 
 
-
-
 ## Used for integration testing.
 func test_generation(fixed_seed: int = 0) -> void:
 	gaea_generator.world_size = Vector3i(45, 45, 1)