144. Variable visibility over time
As a refinement of the fog system, it would be interesting if the visibility via the fog setting might vary over time - perhaps once or twice within a 3 hour game-play period, perhaps +/- 15% of the configured value at a rate of change not more than 1% per 5 minutes?
This would mean that rather than being able to rely on a given visibility (and therefore visual detection range) skippers would have to reassess visibility, and adjust their approaches.
A similar variation could be applied to wind-direction and strength. Ideally with fog greater than 8% (or thereabouts) only being able to form if windspeed was equal to or less than 5 kts. (above this value the mixing of air tends to create low stratiform cloud or mist, in both cases allowing greater visibility.
Similarly, to create high sea-states, wind-speed would need to be high, which in turn would completely preclude fog.
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