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Message: 4649

Author: andrewbroad

Date: 04/01/2005

Subject: Re: JSW64 and JSWED

 

john_elliott_uk wrote:

[50] "The Watch Tower": The infinite-death scenario on falling
back down from "Night has fallen here" [47] is unfair and nasty.
I usually go to "The Off Licence" from here after clearing the
top of the house.

I could make the Watch Tower a fall-any-height room, but that won't
help if Willy happens to fall onto a fire cell or a guardian.

No indeed!

................................
................................
................................
................................
.........../>>>>>>>>............
........../.....................
........./......................
......../.......................
......./.................$......
......|...$.........$...$|......
......|...*.........*...*|......
......||||||||...-||||||||......
............||....||............
............||--..||............
............||....||............
............||..--||............
Watch Tower

[82] "Solar Power Generator": On taking the portal, it triggers
the swordfish routine, then crashes the Spectrum.

Silly me. I set the 'enter room' patch vector rather than the
'enter portal' patch vector.

This reminds me of the discussion I had with Geoff Eddy years ago
about having entry and exit patch-vectors as opposed to the ones
that are called every time-frame. My idea was that an entry patch-
vector would apply pokes in specific rooms, and the exit patch-
vector would undo these pokes. It would probably be smarter to PUSH
the poke-addresses and their old values onto a stack, so that the
game-engine could simply POP them back upon leaving the room, rather
than calling an exit patch-vector.

I have now read the JSW64 room-format
<http://www.seasip.demon.co.uk/Jsw/jsw64room.html>
- Why bother with a half-speed ticker for guardians? Why not just
use the LSb of the main ticker?
- What happens if both the half-speed bit and the double-speed bit
are set?
- I notice this document does not mention switches &c. Are these
implemented as patch-vectors, or is the document incomplete?

[JSWED requests snipped]
I'll consider these.

It would also be nice if the scroll-bars could move more than one
line at a time.

Finally, I was scrolling through the room-list in JSWED when the
application just shut down, instantly and with no visible error-
message.

I've no idea why it would do this. Does it create a file called
stderr.txt with anything useful in it?

Aha!
Fatal signal: Segmentation Fault (SDL Parachute Deployed)

<

--
Dr. Andrew Broad
http://www.geocities.com/andrewbroad/
http://www.geocities.com/andrewbroad/spectrum/
http://www.geocities.com/andrewbroad/spectrum/willy/

 

 

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