[ scummvm-Bugs-893500 ] FOA: Graphics glitch in balloon flight (regression)

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Bugs item #893500, was opened at 2004-02-09 17:15
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Category: Graphics
Group: Indiana Jones 4
Status: Open
Resolution: None
Priority: 5
Submitted By: Torbjörn Andersson (eriktorbjorn)
Assigned to: Nobody/Anonymous (nobody)
Summary: FOA: Graphics glitch in balloon flight (regression)

Initial Comment:
I don't have a savegame for this, but the one in bug
report #893246 ("FOA: Nomads give bad directions.")
will do just fine.

When flying the balloon, the overhead map will scroll
from one room to another by using the scrollEffect()
function. Unfortunately the screen is cleared before
the scroll effect begins, which looks ugly.

This regression was triggered by patch #889552
("Possible fix for bug #884171").

I haven't determined which scripts are responsible for
this, but before every call to scrollEffect() the
following calls to initVirtScreen() are made:

initVirtScreen(0, 0, 0, 320, 200, 1, 1)
initVirtScreen(1, 0, 0, 320, 0, 0, 0)
initVirtScreen(2, 0, 200, 320, 0, 0, 0)


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