MAP File:
---------

1.0    number of sectors: long
1.1    SECTORS: (nos piece)
1.1.0      number of positions: long
1.1.1      position: 2 longs (nop piece)
1.1.2      number of objects: long
1.2    OBJECT: (noo piece)

FCS File:  
---------

1.0      signature: "DILDO" (5 bytes)
1.1      number of sectors: long
1.2      GAMESECTORS: (nos piece)
1.2.0        number of position: long
1.2.1        position: 2 longs (nop piece)

1.2.2        number of walls: long
1.2.3        WALLSS: (now piece)
1.2.3.0           number of vertexes: long
1.2.3.1           vertexes: (nov piece)
1.2.3.2           number of polygons: long
1.2.3.3           polygons: (nop piece)
1.2.4        FLOOR: the structure of wall
1.2.5        CEIL: the structure of wall

1.2.6        number of objects: long
1.2.7        WALLOBJECTS: (noo piece)
1.3      number of portals: long
1.4      A PORTAL: (nop piece)
