Maniac Mansion C64 Disk Layout Information

Maniac.Mansion.C64.Disk.Info

Table Offset:

0x102: Room Disk Number
0x139: Room Track / Sector (0x6E, 110 bytes)


Demo:
0x1F2: Script Room Numbers (0x37, 55 bytes)
0x292: Script Offsets (0x6E, 110 bytes)

Retail:

0x1F2: Script Room Numbers (0x37, 55 bytes)
0x229: Script Offsets (0x6E, 110 bytes)


Room Format:
	Length of resource
	Resource

Script Format:
	Length of script
	Checksum
	Script

private function sectorCount(int $pTrack) {
	return (21 - ($pTrack > 17) * 2 - ($pTrack > 24) - ($pTrack > 30));
}

RoomSectorAlgorithm = (sectorCount(_roomTracks[res]) + _roomSectors[res]) * 256;

Room-8
Track:5
Sector:17
Disk Image Offset = 0x5400 + (0x11 * 0x100) = 0x6500

Script-6
Room:8
Script Offset: 0x0D70
Disk Image Offset: 0x0D70 + 0x6500 = 0x7270

Disk number is in ASCII - 0x32 = '2' = Disk 2