Error when setting global position (inside-in-tree, dirty Transform3D?)

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1

Godot Version

4.6

Question

I get a inside-tree-error (dirty Transform3D?) when setting the global position.

Error message:

Condition "!is_inside_tree()" is true. Returning: Transform3D()

The stack trace looks normal (no emit() or await etc.)

  <C++ Source>  scene/3d/node_3d.cpp:642 @ get_global_transform()
  <Stack Trace> lifecycle.gd:23 @ init()
                enemy.gd:12 @ init()
                tutorial.gd:50 @ process_wave()
                tutorial.gd:43 @ process()
                main.gd:34 @ _process()

This snippet triggers the error:

func init(root_node: Node, enemy: Enemy, _spawn: Dictionary, _timeline: Array):
	spawn = _spawn
	timeline = _timeline
	enemy.global_position = spawn.coords # <- Offending line

What did I do wrong? How can I fix that?

2

You need to add the node to the scene tree before setting its global position. Global position only makes sense in the context of the whole scene tree hierarchy.

1 Like
3

Thank you for the explanation. The negated assertion threw me off.