Only update graph when hitting button or sending command, for now

arrow.gd

@@ -8,6 +8,7 @@ func _ready():
 	pass
 
 func _process(delta):
+	if repository.objects.has(target):
 		var t = repository.objects[target]
 		#print(t)
 		$Line.points[1] = t.global_position - global_position

main.gd

@@ -16,6 +16,9 @@ func _ready():
 	server = TCP_Server.new()
 	server.listen(1234)
 	
+	# Load first level.
+	load_level(0)
+	
 func list_levels():
 	var levels = []
 	var dir = Directory.new()

node.gd

@@ -14,6 +14,7 @@ func _ready():
 
 func _process(delta):
 	for c in children.keys():
+		if get_node("..").objects.has(c):
 			var other = get_node("..").objects[c]
 			var d = other.position.distance_to(position)
 			var dir = (other.position - position).normalized()

repository.gd

@@ -10,20 +10,20 @@ func _ready():
 
 func _process(delta):
 	if path:
-		update_everything()
+		apply_forces()
 		
 func update_everything():
 	update_head()
 	update_refs()
 	update_index()
 	update_objects()
-	apply_forces()
 
 func set_path(new_path):
 	path = new_path
 	for o in objects.values():
 		o.queue_free()
 	objects = {}
+	update_everything()
 	
 func get_path():
 	return path

repository.tscn

@@ -25,3 +25,14 @@ text = "Index:"
 __meta__ = {
 "_edit_use_anchors_": false
 }
+
+[node name="Button" type="Button" parent="."]
+margin_left = 36.5602
+margin_top = 67.9891
+margin_right = 94.5602
+margin_bottom = 109.989
+text = "Update"
+__meta__ = {
+"_edit_use_anchors_": false
+}
+[connection signal="pressed" from="Button" to="." method="update_everything"]

terminal.gd

@@ -12,3 +12,4 @@ func run_command_in_a_thread(command):
 	$Input.text = ""
 	$Output.text = $Output.text + "$ " + command + "\n" + output
 	$Output.scroll_vertical = 999999
+	$"../ActiveRepository".update_everything()