Recovered orphaned WIP before switching to a new task

test_out.txt

@@ -0,0 +1,15 @@
+Godot Engine v4.6.2.stable.official.71f334935 - https://godotengine.org
+
+roundtrip bounds.position = (0.0, 0.0, 0.0)  (expected (0.5, 1.5, 2.5))
+roundtrip coord = (0, 0, 0)  (expected (1, 2, 3))
+format_version present? -> <null>
+version field -> 1
+SCRIPT ERROR: Invalid assignment of property or key 'properties' with value of type 'bool' on a base object of type 'RefCounted (WorldObjectData)'.
+          at: _parse_object_section (res://scripts/chunk_data_decoder.gd:407)
+          GDScript backtrace (most recent call first):
+              [0] _parse_object_section (res://scripts/chunk_data_decoder.gd:407)
+              [1] _init (res://test_review.gd:25)
+SCRIPT ERROR: Out of bounds get index '0' (on base: 'Array[WorldObjectData]')
+          at: _init (res://test_review.gd:26)
+          GDScript backtrace (most recent call first):
+              [0] _init (res://test_review.gd:26)

test_review.gd

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+extends SceneTree
+
+func _init() -> void:
+	# 1. float32 encode/decode
+	var b: PackedByteArray = ChunkDataDecoder._write_float32(0.5)
+	print("float32(0.5) bytes = ", b, " (expected 00 00 00 3f)")
+	var decoded_f: float = ChunkDataDecoder._read_float32(PackedByteArray([0x00, 0x00, 0x00, 0x3f]), 0)
+	print("read_float32 of 0x3f000000 = ", decoded_f, " (expected 0.5)")
+
+	# 2. metadata section wrapping: inspect first bytes of encoded payload
+	var payload: ChunkDataDecoder.ChunkPayload = ChunkDataDecoder.ChunkPayload.new()
+	payload.world_id = "w"
+	payload.room_id = "r"
+	payload.coord = Vector3i(1, 2, 3)
+	var meta: PackedByteArray = ChunkDataDecoder._build_metadata_section(payload)
+	print("metadata section first 12 bytes = ", meta.slice(0, 12))
+
+	# 3. properties parse with empty-ish string
+	var props_str := "{}"
+	var val = JSON.parse_string(props_str) or {}
+	print("'JSON.parse_string(props_str) or {{}}' type = ", typeof(val), " value = ", val)
+	quit()