Line of sight

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Revision as of 05:22, 24 May 2006 by Ethereal Cereal (talk | contribs) (added diagrams, couple of notes)
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All units, both X-Com and alien, have a line of sight. A unit's line of sight encompasses any objects or other units which are:

  • Within visible range
Visible range for X-Com soldiers is 21 tiles during the day and dawn/dusk, 9 at night
Aliens are not subject to the lighting penalties and have a 21 tile range at all times.
  • Not blocked by terrain or other units
  • Within the unit's field of vision

All units have a 90 degree field of vision, radiating outward in a cone in whichever direction they are facing.

Unit facing South. Visible squares are in white.
Unit facing Southeast. Visible squares are in white.


  • There are cases where aliens can see around corners (and shoot at you) when you cannot see them. This phenomenon is not fully understood at this time.

[Need diagrams of LOS around corners/beyond roofs.]