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add nil check to line_of_sight

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TenPlus1 2018-08-08 11:23:40 +01:00
parent 77c19da8d4
commit 42473cbc23
1 changed files with 3 additions and 0 deletions
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api.lua
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@ -239,6 +239,8 @@ end
-- check line of sight (by BrunoMine, tweaked by Astrobe)
local line_of_sight = function(self, pos1, pos2, stepsize)
if not pos1 or not pos2 then return end
stepsize = stepsize or 1
local stepv = vector.multiply(vector.direction(pos1, pos2), stepsize)
@ -283,6 +285,7 @@ end
-- global function
function mobs:line_of_sight(self, pos1, pos2, stepsize)
return line_of_sight(self, pos1, pos2, stepsize)
end