forked from Mirrorlandia_minetest/mesecons
Return if invalid parameters are given to node_detector_scan (e.g. unloaded area), should fix #228
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@ -135,8 +135,12 @@ end
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-- returns true if player was found, false if not
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-- returns true if player was found, false if not
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local node_detector_scan = function (pos)
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local node_detector_scan = function (pos)
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local node = minetest.get_node(pos)
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if not pos then return end
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local frontpos = vector.subtract(pos, minetest.facedir_to_dir(node.param2))
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local node = minetest.get_node_or_nil(pos)
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if not node then return end
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local scandir = minetest.facedir_to_dir(node.param2)
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if not scandir then return end
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local frontpos = vector.subtract(pos, scandir)
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local frontnode = minetest.get_node(frontpos)
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local frontnode = minetest.get_node(frontpos)
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local meta = minetest.get_meta(pos)
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local meta = minetest.get_meta(pos)
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return (frontnode.name == meta:get_string("scanname")) or
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return (frontnode.name == meta:get_string("scanname")) or
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