-- x, y, state (open|closed), needs (item_id), says (door_template, typically), ex:
--4,4,closed,item_iron_key,door_template

-- this door is for the level trigger
15,6,closed,item_copper_key,door_template
16,21,closed,item_copper_key,door_template
1,2,closed,nil,nil
9,4,closed,nil,nil
10,5,closed,nil,nil
21,6,closed,item_copper_key,door_template
1,20,closed,item_copper_key,door_template
21,10,closed,nil,nil
11,12,closed,nil,nil
4,13,closed,nil,nil
15,14,closed,nil,nil
19,18,closed,nil,nil
12,19,closed,nil,nil
--16,21,closed,nil,nil
6,21,closed,item_lead_key,door_template
