Changed: Do not spread objlinks over two-sided linedefs when the middle material on the back side of the spread direction completely fills the gap between floor and ceiling. Fixes the issue seen in Heretic E1M2 where the Undead Warriors hidden behind a one-way wall in sector #83 were sometimes visible from the other side. This also fixes the problem of dynamic lights spreading under similar circumstances.
Added by danij over 15 years ago
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Changed: Do not spread objlinks over two-sided linedefs when the middle material on the back side of the spread direction completely fills the gap between floor and ceiling. Fixes the issue seen in Heretic E1M2 where the Undead Warriors hidden behind a one-way wall in sector #83 were sometimes visible from the other side. This also fixes the problem of dynamic lights spreading under similar circumstances.