VZcave (VZ200, VZ300)

In 1972 a crack commando unit  was  sent to prison by a military
court for a crime they didn't commit. These men promptly escaped
from a maximum security stockade to the Los Angeles underground.
Wanted by the government,   they survive as soldiers of fortune.

Your mission now is to  survive  the undulating rough terrain of
'The Cave' 21 years later  after  it was first discovered by the
original exploration team  back in 2002.   You must navigate the
underground world and  reach the  end  of the harsh 40 kilometre
trip where you will ultimately find your destination and goal.

Good luck goes out to your unit, as you will need it in order to
survive this epic transpordition & exploration adventure.

------------------------

Way back in July 2002, Waulok said to me on the VZ mailing list, something like : "How about a cave game? Like SFcave?". I went home that afternoon from work at about 3pm, and this was the result by 2am the next morning. This could be the only game that I have ever completely finished.

The original VZCAVE2002 only ran on emulators due to my dumbness of memory management (none).

VZCAVE2023 should work on a VZ300 with 16k RAM pack.

<0-5> : Set game speed.

<S>   : Start the game.

<Q>   : Up.

VZCAVE2002 was written in C, compiles with the the-then current version of Z88DK in 2002, being v1.2.   

This source will not compile correctly with the current version due to VZ library changes over the years.

2023:

After trying to get my head back into this ancient C source code stuff, and after a few days of dabbling (call it a solid week),
finally managed to get this thing actually working on real hardware. Must be a massive stack issues with this very early release of library code
--- it works brilliantly in VZEM, but on real hardware, failures and crashes are at every corner.

VZCAVE2002.VZ    - original release for the original Command-line VZEM emulator. July 2002.
VZCAVE2002.C    - original source code release.
VZCAVE2023.VZ    - re-written and tested on a real VZ300. Now with intro sound!
       - Also works fine & dandy in all versions of VZEM versions 2009 onwards.
VZCAVE2023.C    - source.

Both the 2002 and 2023 will only compile with the specific small-c library written for the VZ for Z88DK v1.2. The Z88 Libraries have changed incredibly over the years from this early 2001 released version, and, as the source code stands, will not compile with any other later versions of the Z88 Dev Kit.

Bugs: VZCAVE2023 still a small bug where your ship can randomly crash mid air on the first run.  I gave up looking for the reasoning to it. Doesn't happen in either version in VZEM.

/Dave