Unique identifier of the frame This field makes sure that the new layer won't exceed the original frame's range
keeping the active layers within the frame When passing custom classes or instances to web workers, they are serialized into plain objects due to the fact that web workers can only communicate using JSON-compatible data types
Create active layers based on the given plan and adds it to Frame.layers
plan created by the designer
Class representing a frame used for generating and managing layer of terrain.