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AWJ |
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Reged: 03/08/05
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Posts: 936
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Loc: Ottawa, Ontario
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Re: Ghouls'n Ghost (World): Missing background layer at 3º stage boss (Gassuto)
03/11/16 09:27 AM
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> > This bug is already issued here:
> >
> > http://mametesters.org/view.php?id=1676&nbn=4#bugnotes
> >
> > And is a bug from the real pcb, depending if you die or not in the second section
> of
> > the level, the layer appears in a diferent position...
> >
> > I've attached two savestates if you want to check it....(with mame 0.171):
> > 1.sta --> No die, layer moved
> > 2.sta --> died, layer correctly
>
> So, long story short: it is a BTANB, i.e. an original game bug, and MAME is emulating
> it corectly?
That's what it looks like. The scroll position of the far BG layer changes depending on whether you play from the start of the level or from the halfway checkpoint. And it seems like it happens in more than one level, it's just most obvious in that one.
Since the layer position when you get there from the halfway checkpoint seems more correct than the position when you get there from the start of the level, I would guess it's caused by accumulated truncation/rounding errors in the scrolling.
Edited by AWJ (03/11/16 09:31 AM)
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Re: Ghouls'n Ghost (World): Missing background layer at 3º stage boss (Gassuto)
