fix error wiht nil stack

hide metaitems

Author: Choumiko

control.lua

@@ -59,27 +59,29 @@ script.on_event(defines.events.on_marked_for_deconstruction, function(event)
     -- player has a upgrade planner and other has deconstruction planner,
     -- we can't determine it, so we have to discard deconstruction order.
     for _, p in pairs(game.players) do
-      local stack = p.cursor_stack
-      if stack.valid_for_read then
-        if stack.name == "upgrade-planner" then
-          if upgrade or deconstruction or module then
-            --debugDump("Upgrade planner used", true)
-            return
-          end
-          upgrade = true
-        elseif stack.name == "deconstruction-planner" then
-          if upgrade or module then
-            --debugDump("Deconstruction/Module planner used", true)
-            return
-          end
-          deconstruction = true
-        elseif stack.name == "module-inserter" then
-          if upgrade or deconstruction then
-            --debugDump("Deconstruction/Upgrade planner used", true)
-            return
+      if p.connected then
+        local stack = p.cursor_stack
+        if stack and stack.valid_for_read then
+          if stack.name == "upgrade-planner" then
+            if upgrade or deconstruction or module then
+              --debugDump("Upgrade planner used", true)
+              return
+            end
+            upgrade = true
+          elseif stack.name == "deconstruction-planner" then
+            if upgrade or module then
+              --debugDump("Deconstruction/Module planner used", true)
+              return
+            end
+            deconstruction = true
+          elseif stack.name == "module-inserter" then
+            if upgrade or deconstruction then
+              --debugDump("Deconstruction/Upgrade planner used", true)
+              return
+            end
+            player = p
+            module = true
           end
-          player = p
-          module = true
         end
       end
     end

data-final-fixes.lua

@@ -3,6 +3,7 @@ require "lib"
 local types = {["mining-drill"]=true,["assembling-machine"]=true,lab=true,["rocket-silo"]=true, furnace=true, beacon=true}
 
 local metaitem = copyPrototype("deconstruction-item", "deconstruction-planner", "mi-meta")
+table.insert(metaitem.flags, "hidden")
 local metarecipe = copyPrototype("recipe", "deconstruction-planner", "mi-meta")
 metarecipe.ingredients = {}
 metarecipe.enabled = false

info.json

@@ -1,6 +1,6 @@
 {
   "name": "ModuleInserter",
-  "version": "0.1.32",
+  "version": "0.1.33",
   "title": "Module Inserter",
   "author": "Choumiko",
   "homepage": "",

prototypes/item.lua

@@ -10,6 +10,7 @@ mi_proxy.collision_box = {{-0.1,-0.1},{0.1,0.1}}
 mi_proxy.collision_mask = {"doodad-layer", "not-colliding-with-itself"}
 
 local mi_proxy_i = copyPrototype("item","wooden-chest","module-inserter-proxy")
+table.insert(mi_proxy_i.flags, "hidden")
 mi_proxy_i.icon = "__ModuleInserter__/graphics/module-inserter-icon.png"
 mi_proxy_i.stack_size = 1000