debug_glb_export.gd

## Debug: build a character, export to GLB, re-import and count meshes.
extends SceneTree

func _init() -> void:
	call_deferred("_run")

func _run() -> void:
	var recipe := SKRecipe.load_from_file("res://synty_assets/characters/Starter_01.sk")
	var library := SKPartLibrary.new()
	library.scan()
	var colors := SKColorEngine.new()
	colors.setup()
	var builder := SKCharacterBuilder.new(library, colors)
	var character := builder.build(recipe)
	print("meshes in character: %d" % character.find_children("*", "MeshInstance3D", true, false).size())

	# Try export exactly like the dock does (node not in tree).
	var document := GLTFDocument.new()
	var state := GLTFState.new()
	var error := document.append_from_scene(character, state)
	print("append (out of tree): %s, state meshes: %d, nodes: %d" % [error_string(error), state.meshes.size(), state.nodes.size()])

	# Try again with the node inside the tree.
	root.add_child(character)
	var document2 := GLTFDocument.new()
	var state2 := GLTFState.new()
	var error2 := document2.append_from_scene(character, state2)
	print("append (in tree): %s, state meshes: %d, nodes: %d" % [error_string(error2), state2.meshes.size(), state2.nodes.size()])
	if error2 == OK:
		error2 = document2.write_to_filesystem(state2, "user://debug_export.glb")
		print("write: %s size: %d" % [error_string(error2), FileAccess.get_file_as_bytes("user://debug_export.glb").size()])

	quit(0)
# (appended check runs via separate script below)