Simple Scheduler

A simple scheduler

This is another polling example, like ChangeActionBarAutomaticallyBasedOnTargetDistance. The two can coexist as-is just fine.

To schedule an action, put your code in a function and call: stkSchedule(<secondsFromNow>, <function>). Very simple but it works great. Remember: Blizzard does not allow you to cast spells, attack, or execute many of the other WoW API functions in a scheduled fashion like this--they must come from keyboard or mouse events (this is to prevent people from writing bots).

if (stkSchedulerQueue == nil) then
  stkSchedulerQueue = {}
end

function stkPlayerFrameOnUpdate(elapsed)
  if (GetTime() >= stkLastSchedulerCheck + .3) then
    stkLastSchedulerCheck = GetTime()
    stkCheckSchedulerQueue()
  end
  originalPlayerFrameOnUpdate(elapsed)
end

if (originalPlayerFrameOnUpdate == nil) then
  -- only do this once
  originalPlayerFrameOnUpdate = PlayerFrame_OnUpdate
  stkLastSchedulerCheck = GetTime()
end

PlayerFrame_OnUpdate = stkPlayerFrameOnUpdate

function stkSchedule(secsFromNow, func)
  local job = {
    when = GetTime() + secsFromNow,
    func = func
  }
  --p("scheduling job: now: "..GetTime()..", when: "..job.when)
  table.insert(stkSchedulerQueue, job)
end

function stkCheckSchedulerQueue()
  local i = 1
  while i <= table.getn(stkSchedulerQueue) do
    local job = stkSchedulerQueue[i]
    if (job.when <= GetTime()) then
      --p("executing job, now: "..GetTime()..", when: "..job.when)
      job.func()
      table.remove(stkSchedulerQueue, i)
    else
      i = i + 1
    end
  end
end

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