Asynchronous tasks

[xoft]

You could already do a few things to avoid lag - for example make the command create a description of the operation, store it in a storage and have the world tick thread do a little bit of work on the queue of such operations at a time - for example generating, say, 10 slices of a big area.

function OnCmdGenerate(...)
  local operation = cGenerateStructure:new(...)
  table.insert(g_WorkQueue[worldName], operation)
end

function OnWorldTick(...)
  local workItem = g_WorkQueue[worldName][1]
  if (workItem ~= nil) then
    workItem:doABitOfWork()
    if (workItem:IsFinished()) then
      table.remove(g_WorkQueue, 1)
    end
  end
end