Added default.get_file_contents function, updated snow walkable=false

mods/default/functions.lua

@@ -448,4 +448,19 @@ function default.get_distance(pos1,pos2)
 	else
 		return nil
 	end
+end
+
+function default.get_file_contents(filename)
+	local f = io.open(filename, "r")
+		if f==nil then 
+			minetest.log("error","File "..filename.." not found, returning empty table")
+			return ""
+		end
+			local t = f:read("*all")
+			f:close()
+		if t=="" or t==nil then 
+			minetest.log("error","File "..filename.." is blank, returning empty table")
+			return ""
+		end
+		return t
 end

mods/default/nodes.lua

@@ -1137,7 +1137,7 @@ minetest.register_abm({
 				-- check their skills
 				local probability = 100
 				local skilled_item = false
-				if cooked.item:get_definition().groups["skill"] ~= nil then
+				if cooked.item:get_definition().groups["skill"] ~= nil and owner ~= "" then
 					probability = skills.get_probability(owner,SKILL_SMELTING,cooked.item:get_definition().groups["skill"])
 					skilled_item = true
 				end