命令中的Lua计时器

Question

Sorry, but this one is what some may call an open-ended question.

I am attempting to make a command where if someone says !spectate, they are put in spectate mode, and stay in there for 30 seconds. So far I have been totally unsuccessful, and as such, have no idea really of what I'm doing, so not erroneous code available :(

Here's some things which may assist those who answer:

To put one in spectate mode, after someone says !spectate (without the 30 second limit) you do this:

if Message == "!spectate" then
  InputConsole("spectate %d", pID)
end

The game this will be used with is Command and Conquer: Renegade

Sorry I can't be much more helpful than that, I am totally out of my depth here!

Answer 1

However you'd go about doing this would be specific to Renegade's Lua API. I've never used it myself, but the almighty Google reckons that Renegades uses LuaTT , for which the API docs say:

You can have only 255 scripts attached to objects. For timers, make your own api based of OnThink and os.time

The docs aren't particularly good, but a quick look at the example code found here suggests something along these lines would work:

local timers = {
  { time = 1343910384, cb = function() doSomething() end }
}

function OnThink()  -- this is called every frame
  for i = 1, #timers do
    if os.time() > timers[i].time then 
      timers[i].cb()
      table.remove(timers, i)
    end
  end
end

The code you posted would then look something like this:

if Message == "!spectate" then
  InputConsole("spectate %d", pID) -- move player to spectators
  table.insert(timers, {
    time = os.time() + 30,                                 -- 30 seconds from now,
    cb   = function() InputConsole("spectate %d", pID) end -- remove player from spectators
  })
end