A class that produces mappings from one game data into another.
An interface calculating a mapping between two map levels (or layers).
This is a simple mapping that assumes no translation and no scaling.
Represents the relation between two map levels by some coordinate transformation.
Astral to real mapping from several astral regions with schemes, calculating the "extent" of the schemes Proposed by Fiete: taking into account land regions in the neighborhood that would appear as schemes, but don't do.
Astral to real mapping from two neighbor astral spaces with schemes (there can be seen exactly one same scheme from both astral regions).