how scheduleFunction is supposed to work ?

[Arnaud]

I've been trying to do something quite simple for an incredible amount of time.

 

Here's the goal : The group should stop orbiting if flag 1 OR 5 are true.

 

I try (as self-teaching purpose) to this via script and Mist only (no mission editor manipulation).

 

So :

 

function CheckStatus()
affiche("Checking Transit",1)
local flag1 = trigger.misc.getUserFlag(1)
local flag5 = trigger.misc.getUserFlag(5)
if flag1 ~= 0 or flag5 ~= 0 then
	--trigger.action.setUserFlag(6, true)
	local groupGround = Group.getByName('Group Player #002')
	local groupGroundControl = groupGround:getController()
	groupGroundControl.popTask()
	affiche("Flag 1 "..flag1,5)
	affiche("Flag 5 "..flag5,5)
	affiche("Transit initié",5)
else
	return timer.getTime() + 5
end
end

timer.scheduleFunction(CheckStatus,{},timer.getTime() + 5)

 

This is not working. I've trying to use (and modify) the exemple from documentation to no avail.

 

In the log I get :

 

ERROR SCRIPTING: MIST|doScheduledFunctions|1019: Error in scheduled function: $1[string "C:\Users\Arnaud\AppData\Local\Temp\DCS.openbeta\/~mis000036D0.lua"]:5053: attempt to compare nil with number

 

I don't understand where it comes from...

 

How to use scheduleFunction with a function with no arguments ?

 

Am lost....

Edited February 6, 2020 by Arnaud

[Hardcard]

This is all standard DCS code, you don't need MIST to run it.

 

Anyway, looks like the error is happening in line 5053 of the temporary lua file located in C:\Users\Arnaud\AppData\Local\Temp\DCS.openbeta\/~mis000036D0.lua

 

(Note that DCS creates these temporary files when you run scripted missions, but keep in mind that they're removed eventually)

 

There's a chance this temporary lua file is a copy of mist_4_3_74.lua... if this is the case, then I guess that the problematic line is the following:

if [color="Red"]messageData.displayedFor[/color] > messageData.displayTime then

[color="Blue"]-- If [i][b]messageData.displayedFor[/b][/i] returns nil, this statement will raise the kind of error that you got[/color]

 

This error seems to be related to text messages, which brings me to something I've seen in your snippet:

[color="Red"]affiche[/color]("Checking Transit",1)
[color="Red"]affiche[/color]("Flag 1 "..flag1,5)
[color="red"]affiche[/color]("Flag 5 "..flag5,5)
[color="red"]affiche[/color]("Transit initié",5)
[color="Blue"]-- Looks like you're trying to create text messages using a variable / function named [i][b]affiche[/b][/i], which isn't defined in your snippet[/color]

[color="Blue"]-- Is affiche defined somewhere else, like this?[/color]
function affiche(text, time) 
  trigger.action.outText(text , time)
end

 

 

 

 

Here, try this snippet instead, see if you still get that error (MIST isn't needed):

 

function affiche(text, time) 
  trigger.action.outText(text , time)
end

function CheckStatus()
 
 affiche("Checking Transit",1)
 
 local flag1 = trigger.misc.getUserFlag("1")  [color="Blue"]-- Give flag name as string instead of number, just in case[/color]
 local flag5 = trigger.misc.getUserFlag("5")  [color="blue"]-- Give flag name as string instead of number, just in case[/color]
 
 if (flag1 == 1 or flag5 == 1) and Group.getByName('Group Player #002') then [color="blue"]-- When flags are true (on), they have a value of 1, also, it's always a good idea to make sure the group is present[/color]
   
    if Group.getByName('Group Player #002'):isExist() then [color="blue"]-- Check that the group exists before trying to do stuff with it[/color]
   
       local groupGround = Group.getByName('Group Player #002')
       local groupGroundControl = groupGround:getController()
       
       groupGroundControl[color="Green"]:[/color]popTask() [color="Blue"]-- Use colon instead of dot[/color]
       
      if flag1 then   [color="Blue"]-- Make sure that flag1 isn't nil before trying to concatenate it in a message[/color]
         affiche("Flag 1 "..flag1,5)
      end 
      
      if flag5 then  [color="Blue"]-- Make sure that flag5 isn't nil before trying to concatenate it in a message[/color]
         affiche("Flag 5 "..flag5,5)
      end 
      
       affiche("Transit initié",5)
    end
  end  
 
 if flag1 ~= 1 or flag5 ~= 1 then  [color="Blue"]-- The scheduler will keep running unless both flags are true[/color]
     return timer.getTime() + 5 
 
 end
end

timer.scheduleFunction(CheckStatus, nil ,timer.getTime() + 5) [color="Blue"]-- If you don't have to pass any arguments, just pass nil[/color]

 

Edited February 6, 2020 by Hardcard

[Arnaud]

Thank's HardCard you helped me a lot here ! :notworthy:

 

My Display/tracing function :

 

local function affiche(mess, temps)
trigger.action.outText(mess, temps , true)
end

 

And my function to initiate the next step of the flight (that's orbiting)

 

function CheckTransit()
affiche("Checking Transit",1)
local flag1 = trigger.misc.getUserFlag(1)
local flag5 = trigger.misc.getUserFlag(5)
if (flag1 == 1 or flag5 == 1) and  Group.getByName('Group Player #002') then
	if Group.getByName('Group Player #002'):isExist() then
		Group.getByName('Group Player #002'):getController():popTask()
		affiche("Transit initié",2)
	end
else
	return timer.getTime() + 5
end
end

 

I know it's not precisely what you told me but I was eager to test a few new things.

And the call to the function

 

timer.scheduleFunction(CheckTransit, nil, timer.getTime()+5)

 

Now it runs normally without any error.

I can read the trace displaying each 5 seconds and once one flag is set to True I can see my control messages displaying.

 

But

 

The group is still orbiting, no matter what... :blink:

 

Also I tried to test eventHandler with this :

 

local function listFlags(taille)
for v = 1, taille, 1 do
	affiche("Mon flag "..v.." = " .. trigger.misc.getUserFlag(v),1)
end
end

local function displayFlags(event) 
  if event.id == world.event.S_EVENT_DEAD and event.initiator then 
   affiche("Unité "..event.initiator:getName().." détruite", 1)
   listFlags(10)
  end 
end 
mist.addEventHandler(displayFlags)

 

It used to work, but now it doesn't anymore. Maybe there is a conflict between eventhandlers and scheduleFunction ?

 

So frustrating....

Edited February 6, 2020 by Arnaud

[sunski34]

Hi Arnaud

 

There s no pb using timer functions and events handler. If you want information write me in MP in french. But you can do that withput mist too.

 

Sunski

[davidp57]

Hi Arnaud,

Sorry to come here after the battle is over ^^

If you ever need french-speaking help with mission editing, feel free to drop to the VEAF's discord or forum. I'm often here, and always eager to help !