[Scummvm-tracker] [ScummVM] #10814: QFG4: Crash in cave when fighting Pit Horror below the tightrope

[Martin Kiewitz]

#10814: QFG4: Crash in cave when fighting Pit Horror below the tightrope
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  Reporter:  Vhati              |      Owner:  (none)
      Type:  defect             |     Status:  new
  Priority:  normal             |  Component:  Engine: SCI
Resolution:                     |   Keywords:  SCI32 has-pull-request
      Game:  Quest for Glory 4  |
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Comment (by m-kiewitz):

 kSetNowSeen in this game does not modify ACC.
 This has been working correctly and is also still working correctly.
 In these specific cases ACC already holds an object, which is not removed
 and which then causes this arithmetic operation fault by us.

 In a sense it's valid script code, but for us it isn't.
 We could add workarounds anyway, or better patch it, so that it doesn't do
 this anymore.

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Ticket URL: <https://bugs.scummvm.org/ticket/10814#comment:45>
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