The lines each player has seen on each level, for their automap. The view that draws a player's picture records what it drew; the automap reads it back.
ElixirDoom.Seen.add({"alice", "E1M1"}, lines)
ElixirDoom.Seen.get({"alice", "E1M1"})Kept in a public ETS table created by ElixirDoom.Application.
Summary
Functions
Add lines to what key has seen.
Create the table. Called once by the application.
What key has seen.