C64 BoulderDash Construction Kit File Format
There was a BoulderDash Construction Kit written for the Commodore 64.
I never saw an official version, only a hacked, pre-release version, so
it's possible that the information given below may not be accurate for
the official BoulderDash Construction Kit.
Format of a C64 BoulderDash Construction Kit file
Offset Bytes Range Description
------ ----- ----- -----------
0000 0002 unknown
0002 01B8 00-0F 880 nybbles of cave description (see below)
01BA 0001 00-14 Cave delay (00 = fast, $14 = slow)
01BB 0001 unused
01BC 0001 00-FF Cave time in "seconds"
01BD 0001 unused
01BE 0001 00-63 Diamonds needed
01BF 0001 unused
01C0 0001 00-63 Diamond value
01C1 0001 unused
01C2 0001 00-63 Bonus diamond value
01C3 0001 unused
01C4 0001 00-08 Slime permeability
01C5 0001 unused
01C6 0001 00-FF Amoeba life time
01C7 0001 unused
01C8 0001 00-FF Magic wall milling time
01C9 0001 unused
01CA 0012 unknown
01DC 0002 00-0F Colour 1
01DE 0002 00-0F Colour 2
01E0 0002 00-0F Colour 3
01E2 0002 00-0F Colour 4
01E4 0002 00-07 Colour 5
01E6 000C unknown
Nybble Codes
0 Boulder
1 Diamond
2 Magic wall
3 Brick wall
4 Steel wall
5 Expanding wall
6 Rockford
7 Dirt
8 Firefly
9 Butterfly
A Amoeba
B Slime
C Hidden out
D Visible out
E In
F Space
Pallette Tools
Random generator
Line tool
(C) Colour selection dialog
(T) Test cave
(M) Filing operations dialog (load, save, directory etc)
(N) New cave/intermission
(P) Pallette on/off
(V) Timers
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