Forbid lumber mill in space

lignumis/prototypes/content/lumber-mill.lua

@@ -13,6 +13,8 @@ data:extend({
 
 table.insert(data.raw["character"]["character"].crafting_categories, "wood-processing-or-assembling")
 
+local has_oxygen = data.raw["surface-property"]["oxygen"] ~= nil
+
 LumberMill.EntityBuilder:new()
     :burnerEnergySource({ emissions_per_minute = { noise = 100 } })
     :baseProductivity(0.5)
@@ -20,6 +22,16 @@ LumberMill.EntityBuilder:new()
         crafting_categories = { "wood-processing-or-assembling" },
         crafting_speed = 2,
         energy_usage = "1000kW",
+        surface_conditions = {
+            {
+              property = has_oxygen and "oxygen" or "pressure",
+              min = 10
+            },
+            {
+              property = "gravity",
+              min = 1
+            }
+          }
     })
 
 local lumber_mill_item = LumberMill.ItemBuilder:new()