Line of sight

[Donald Jonker]

I still don't understand why *bands handle line of sight the way they do. The simplest, and most sensible thing to do, IMO, would be to make anything visible targetable. Until recently I assumed this was prevented for some vague benefits to the game's tactics. Then I played a few games of Crawl, which has better tactical depth and visible=targetable.

Is it just tradition? Preservation of hockey-stick/antisummon corridors?

[zaimoni]

Even with the recent advances (Tyrecius' Permissive Field of View, RGRN/Roguebasin), I had a very noxious time implementing projectable==visible in Zaiband. (There are a couple of asserts that are disabled, as they are empirically harmless to fail.)

Basically, V's line-of-sight calculations correspond only to what looks good; there's no paths behind it in the current implementation. The flag that is supposed to provide paths according to line-of-sight was never implemented, even though it looked like a good idea in 1997(?).