can get loading to work

LoadDialog.gd

@@ -2,26 +2,26 @@ extends ConfirmationDialog
 
 func _on_about_to_popup():
 	$ItemList.clear()
-	#var dir = DirAccess.open("user://saves/")
 	var dir = DirAccess.open("user://saves/")
-		
+	var file_names = []
+
 	if dir:
 		dir.list_dir_begin()
 		var file_name = dir.get_next()
 		while file_name != "":
-			if dir.current_is_dir():
-				print("Found directory: " + file_name)
-			else:
-				print("Found file: " + file_name)
-				$ItemList.add_item(file_name)
-				file_name = dir.get_next()
+			if !dir.current_is_dir():
+				file_names.append(file_name)
+			file_name = dir.get_next()
+		dir.list_dir_end()
+
+		file_names.sort()  # Sort the file names
+		for f in file_names:
+			$ItemList.add_item(f)
 	else:
 		print("An error occurred when trying to access the path.")
 
 func _on_confirmed():
-	# Get the Map node
-	var sim = get_tree().root.get_node("Sim")
-	var old_map = get_tree().root.get_node("Sim/Map")
+	var map = get_tree().root.get_node("Sim/Map")
 
 	# Load and instance the selected item
 	for item in $ItemList.get_selected_items():
@@ -30,7 +30,22 @@ func _on_confirmed():
 
 		if res and res is PackedScene:
 			var instance = res.instantiate()
-			sim.remove_child(old_map)
-			sim.add_child(instance)
+			print("Loading:",instance.name)
+
+			# Delete all children of 'scene'
+			for child in map.get_children():
+				child.queue_free()
+
+			# Copy all children of 'new_scene' to 'scene'
+			for child in instance.get_children():
+				#var child_copy = child.duplicate()
+				#map.add_child(child_copy,false,Node.INTERNAL_MODE_BACK)
+				instance.remove_child(child)
+				map.add_child(child)
+				print("adding ",child.name)
+			
+			instance.queue_free()
+			res=null
+			$"../SaveDialog/LineEdit".text=$ItemList.get_item_text(item).get_basename()
 		else:
 			print("Error loading")

Map.gd

@@ -12,7 +12,7 @@ func _unhandled_input(event):
 				# Handle mouse button release
 				var pos = get_global_mouse_position()
 				var vol = pos - mouse_down_position
-				spawn(pos,vol)
+				spawn(mouse_down_position,vol)
 
 func spawn(pos,vol):
 	var r=int($"../ScreenOverlay/HUD/HBoxContainer/Colors/Red".text)
@@ -59,6 +59,7 @@ func spawn_player(pos,vol):
 		for collision in collision_results:
 			#print
 			if collision.collider.get_parent() is Pool:
+				new_player.queue_free()
 				collision.collider.get_parent()._on_decay_timer_timeout()
 				return
 		var marker = Sprite2D.new()
@@ -66,3 +67,4 @@ func spawn_player(pos,vol):
 		marker.scale=Vector2(0.1,0.1)
 		marker.texture = load("res://images/crosshair.png")
 		add_child(marker)
+		new_player.queue_free()

Pool.gd

@@ -48,7 +48,6 @@ func update():
 
 func decay():
 	var new_player = load("res://player.tscn").instantiate()
-
 	new_player.get_node("CharacterBody2D").velocity = Vector2.from_angle(randf_range(0, 2 * PI)) * 100
 	new_player.get_node("CharacterBody2D").position = position
 	new_player.get_node("CharacterBody2D").exchange_with(self)

SaveDialog.gd

@@ -24,10 +24,11 @@ func _on_about_to_popup():
 
 func _on_confirmed():
 	var filename=base_path+$LineEdit.text+".tscn"
+	var map=get_tree().root.get_node("Sim/Map")
 	print("Save: "+filename)
 	var packed_scene = PackedScene.new()
-	set_owner_recursive($"../../Map",$"../../Map")
-	if packed_scene.pack($"../../Map") == OK:
+	set_owner_recursive(map,map)
+	if packed_scene.pack(map) == OK:
 		var result = ResourceSaver.save(packed_scene,filename)
 		if result != OK:
 			print("Failed to save scene. Error #",result)
@@ -37,5 +38,6 @@ func _on_confirmed():
 func set_owner_recursive(node: Node, new_owner: Node):
 	if node != new_owner:
 		node.owner = new_owner
+		print("chown ",node.name)
 	for child in node.get_children():
 		set_owner_recursive(child, new_owner)

sim.tscn

@@ -67,14 +67,14 @@ text = "Save..."
 [node name="LoadDialog" type="ConfirmationDialog" parent="ScreenOverlay"]
 title = "Load"
 position = Vector2i(0, 36)
-size = Vector2i(200, 200)
+size = Vector2i(200, 500)
 script = ExtResource("6_0mayr")
 
 [node name="ItemList" type="ItemList" parent="ScreenOverlay/LoadDialog"]
 offset_left = 8.0
 offset_top = 8.0
 offset_right = 192.0
-offset_bottom = 151.0
+offset_bottom = 451.0
 
 [node name="SaveDialog" type="ConfirmationDialog" parent="ScreenOverlay"]
 mode = 1
@@ -90,6 +90,8 @@ offset_right = 192.0
 offset_bottom = 51.0
 placeholder_text = "Filename"
 
+[node name="NewDialog" type="ConfirmationDialog" parent="ScreenOverlay"]
+
 [node name="ScreenShots" type="Timer" parent="."]
 wait_time = 60.0
 autostart = true
@@ -101,4 +103,5 @@ script = ExtResource("3_7b3mn")
 [connection signal="confirmed" from="ScreenOverlay/LoadDialog" to="ScreenOverlay/LoadDialog" method="_on_confirmed"]
 [connection signal="about_to_popup" from="ScreenOverlay/SaveDialog" to="ScreenOverlay/SaveDialog" method="_on_about_to_popup"]
 [connection signal="confirmed" from="ScreenOverlay/SaveDialog" to="ScreenOverlay/SaveDialog" method="_on_confirmed"]
+[connection signal="confirmed" from="ScreenOverlay/NewDialog" to="Map" method="_on_new_dialog_confirmed"]
 [connection signal="timeout" from="ScreenShots" to="ScreenShots" method="_on_timeout"]