Add gathering, unified inventory, and real-time world

world/gathering/gatherable_anchor_set_3d.gd

@@ -0,0 +1,30 @@
+@tool
+class_name GatherableAnchorSet3D
+extends Node3D
+
+@export var anchor_set_id: StringName
+
+
+func get_spawn_positions() -> PackedVector3Array:
+	var positions := PackedVector3Array()
+	_collect_marker_positions(self, positions)
+	return positions
+
+
+func _collect_marker_positions(
+	root_node: Node,
+	positions: PackedVector3Array,
+) -> void:
+	for child: Node in root_node.get_children():
+		if child is Marker3D:
+			positions.append((child as Marker3D).global_position)
+		_collect_marker_positions(child, positions)
+
+
+func _get_configuration_warnings() -> PackedStringArray:
+	var warnings := PackedStringArray()
+	if anchor_set_id.is_empty():
+		warnings.append("Gatherable anchor-set ID is required.")
+	if get_spawn_positions().is_empty():
+		warnings.append("Add at least one Marker3D spawn anchor.")
+	return warnings

world/gathering/gatherable_anchor_set_3d.gd.uid

@@ -0,0 +1 @@
+uid://b6xfixi21qllm