Working mass-storage that keeps inventory; new worker functions, improvements

logic/demander.lua

@@ -0,0 +1,24 @@
+
+-- Returns a list of ItemStacks from the demandList that are missing in the storageList
+function logistica.get_demand_based_on_list(demandList, storageList)
+  local missing = {}
+  local storageSize = #storageList
+  for _, demanded in ipairs(demandList) do
+    local remaining = demanded:get_count()
+    local i = 1
+    local checkNext = true
+    while checkNext and i <= storageSize do
+      local stored = storageList[i]
+      if demanded:get_name() == stored:get_name() then
+        remaining = remaining - stored:get_count()
+      end
+      if remaining <= 0 then checkNext = false end
+    end
+    if remaining > 0 then
+      local missingStack = ItemStack(demanded)
+      missingStack:set_count(remaining)
+      table.insert(missing, missingStack)
+    end
+  end
+  return missing
+end