Lua unit scripting

[Master-Athmos]

Yeah - it was that. Damn you case sensitive spelling!
Of course fixing that immediately spawns the next problem: It pretty much seems to abort at the same spot saying...

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 LuaRules::RunCallIn: error = 2, CLuaUnitScript::Deactivate, not in a thread

So what can be done about that?

[aegis]

it's being called from the main thread, which apparently isn't right

edit: tobi answered

[Tobi]

Use StartThread to start a new thread, and run stuff that needs to wait/sleep there.

[Master-Athmos]

Yeah, when putting the commands in an own function and calling it in Deactivate() it works. So every time I want to do anything with WaitForxxxx inside engine related functions I need to open up a new thread?

[aegis]

yes. the WaitForMove function has a check to make sure you're in a thread

[Master-Athmos]

But this is just about waits and sleeps or are there other commands one has to outsource in a seperate thread?

[aegis]

you can't wait/sleep in the main thread because it would block spring from running

[Tobi]

Example:

Usually there is no need for a thread when Spring calls this function, so it runs from main thread.

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function script.QueryWeapon()
  return somepiece
end

Now consider you want to add lots of animation code to it anyway:

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function script.QueryWeapon()
  Turn(wheel, x_axis, 18, 1.5)
  WaitForTurn(wheel, x_axis)
  Move(base, y_axis, 42, 0.1)
  WaitForMove(base, y_axis)
  -- etc.
  return somepiece
end

Then you'll get the error you get in the first WaitFor/Sleep function.

For now, rewrite as:

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local function MyAnim()
  Turn(wheel, x_axis, 18, 1.5)
  WaitForTurn(wheel, x_axis)
  Move(base, y_axis, 42, 0.1)
  WaitForMove(base, y_axis)
  -- etc.
end
function script.QueryWeapon()
  StartThread(MyAnim)
  return somepiece
end