[Scummvm-tracker] [ScummVM] #10270: SCI: LSL7: Ocean outside portholes jumps

[ScummVM]

#10270: SCI: LSL7: Ocean outside portholes jumps
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  Reporter:  DanielSWolf           |      Owner:  (none)
      Type:  defect                |     Status:  new
  Priority:  normal                |  Component:  Engine: SCI
Resolution:                        |   Keywords:  sci32
      Game:  Leisure Suit Larry 7  |
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Comment (by DanielSWolf):

 I took a screen recording to illustrate the problem, attached above as
 `sea.gif`.

 I also tracked the ocean's vertical motion and attached the resulting
 graph as `sea-tracking.png`. In this image, it's easy to see that the
 motion should consist of various sine waves blending into each other.
 However, close to the end, a segment of the sine wave seems to be offset
 in time, causing a backwards jerk at the beginning, then a forward jump.

 Also, at the extreme positions, the sea tends to jump back and forth
 between two positions. I added `sea-tracking-closeup.png` to illustrate.

 Unfortunately, I don't know how to debug SCI scripts, and I couldn't find
 a tutorial. Maybe someone with more SCI knowledge can help?

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Ticket URL: <https://bugs.scummvm.org/ticket/10270#comment:4>
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