Line Of Sight - caraminden/anathema-roguelike GitHub Wiki

A Targeted Action with the Line of Sight Condition can only be used by a character if the character can see the Location targeted by the Targeted Action.

If the straight line path is obstructed by Locations with Opacity less than 100%, it is still possible to have Line of Sight, but at a reduced distance that is a function of the Opacity of the Locations along the path.

While a character may still have Line of Sight, if the Locations along the straight line path with a target have non-zero Opacity the target may be considered Obscured to that character.