> Da: Eckhard Stolberg <Eckhard_Stolberg@xxxxxxxxxxxxxxxxxxxxx>
> A: stella@xxxxxxxxxxx
> Oggetto: Re: [stella] PCMSG 2.4 (ok, I've had enough...)
> Data: mercoledì 20 agosto 1997 15.54
> On my PAL TV the NTSC version sometimes looses the colour depending on
the
> number of enemies on the screen. I think your sprite positioning routine
> sometimes runs a little longer than the timer would allow.
Hmmm, this happens here too, but I don't think that it's like you're
saying.
Should the programs draw too much lines sometimes, then the color loss
would happen also in the PAL version, because the only differences are
228-192 additional scanlines in the kernel, and different time values for
Vblank and Overscan.
Moreover, the positionig routine is based on a table and is very simple, I
don't think there can be problems with it. Anyway I'll give a look... this
is a very good reason to use the new debugging features of PCAE 2.0! :)
> Therefore shifting
> some of the unused onscreen lines to the timer should fix the problem and
> make a TV standard switch obsolete.
Now that I'm thinking... how could the two versions be really the same?
If 228 lines MUST be drawn in PAL, then the PAL image will be someway
shrunk ...
There's something not really clear here.
> The enemy graphics seem to loose the top line, when they are on the left
side
> of the screen.
ok, I've already discussed this in the other message...
> In 'no bouncing mode' you also shouldn't bounce off the sides of the
screen.
ok,ok... :)
> I liked the green ship better than the grey one.
mmmhhhh....
> The boss mode should be more obvious, maybe by changing the the border
colour
> or a special sound effect, so that the player wouldn't waste bombs by
trying
> to shoot the last wave of asteroids.
alarming alarm sound just added.
> The ship should always blink, when it has a crystal, like it was in the
last
> version, and not only when it can place the crystal.
you're right, I've undone the change.
> But all in all it is a very good game. I like it.
thanks!!
Ciao,
P.
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