[Scummvm-tracker] [ScummVM] #10041: TITANIC: Star Control: Forward and Backwords are too slow

[Paul Gilbert]

#10041: TITANIC: Star Control: Forward and Backwords are too slow
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  Reporter:  dafioram          |      Owner:  dreammaster
      Type:  defect            |     Status:  closed
  Priority:  low               |  Component:  Engine: Titanic
Resolution:  fixed             |   Keywords:
      Game:  Starship Titanic  |
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Changes (by dreammaster):

 * status:  pending => closed


Comment:

 Yes, I had a hunch, which turned out to be correct. The original game did
 the scene drawing a much higher, frenzier rate, than the ScummVM
 implementation does. We have to support a variety of systems, so I didn't
 want to waste so many cycles on needless drawing and capped the frame rate
 to 30 frames per second. Unfortunately, as it turned out, a few places
 actually did rely on the high rate, and the star control is one of them,
 since it updated the camera during redrawing.

 To get around this, I simply call to update the camera every 10ms in the
 main event loop. That gives the camera a chance to update more frequently
 without requiring any other changes to the star control logic. And I do
 want to keep the actual matrix calculations identical to the original.. I
 still need to eventually figure out why movements to center/lock on the
 2nd and 3rd star take the wrong route, so I need the figures in both the
 original and ScummVM to be equal so I can I figure where it goes wrong.

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Ticket URL: <https://bugs.scummvm.org/ticket/10041#comment:3>
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