Clouds are now two state: transparent (some unit can see there) or opaque (no unit can see there).
They should be three state: transparent, opaque, and explored (terrain is visible).
When a unit visits some area, clouds over once seen tiles should never go to fully opaque. They should be 50% transparent, so the tile under is visible, but units should be hidden, because no unit can see what is happening on the tile. And also buildings should be rendered in neutral colors.
Clouds are now two state: transparent (some unit can see there) or opaque (no unit can see there).
They should be three state: transparent, opaque, and explored (terrain is visible).
When a unit visits some area, clouds over once seen tiles should never go to fully opaque. They should be 50% transparent, so the tile under is visible, but units should be hidden, because no unit can see what is happening on the tile. And also buildings should be rendered in neutral colors.