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The data is in a bit-wise format, allowing for easy, compact dungeon creation.
The formatting order is:
Byte 1: Doors, Byte 2: Blocks, Byte 3: Water
These 4 screens are 3 bytes each, and their code is:
$44,$D7,$00 (upper-left)
$55,$C1,$01 (upper-right)
$44,$6A,$00 (bottom-left)
$44,$48,$06 (bottom-right)
There are obvious patterns to the data layout even at the hexadecimal level, but the methods to my madness are made more apparent, should you look at the bits!
A 16-pixel black bar was added to the bottom of the game screen, to make the dungeon screens better fit the grid. As a secondary effect, it will ease up the game's processing somewhat!","writing":"","writing_bbcode_parsed":"","pools_count":0,"title":"Room Format -- 3 Bytes!","deleted":"f","public":"t","mimetype":"image/png","pagecount":"1","rating_id":"0","rating_name":"General","ratings":[],"submission_type_id":"1","type_name":"Picture/Pinup","guest_block":"f","friends_only":"f","comments_count":"8","views":"37","sales_description":null,"forsale":"f","digitalsales":"f","printsales":"f","digital_price":""}