Example of output/input via TCP/UDP

[frank]

Hi All

Anybody can show me a example "how to" send data (ex. master Caution light) to TCP/UDP - Also an example of sending Input through TCP/UDP like "Master Caution push" to the sim ??

 

How is the sting send to and from look like ??

 

Regads

Frank

[BigfootMSR]

Take a look at the input/output thread of the forums. THere are several threads in there that talk about how to create external controllers such as external push buttons that work with game.

[Waxi]

Download and install HELIOS and look at the Export.lua it installs in your DCS folder. That's a good starting point.

[SparkyOV]

Anybody can show me a example "how to" send data (ex. master Caution light) to TCP/UDP - Also an example of sending Input through TCP/UDP like "Master Caution push" to the sim ??

 

See Gadroc's Export.lua which is what was the key for my understanding how it all works.

 

Also, see my post on a little bit more detail on how to address each switch in sim.

 

Basically, you will have an app that listens on a UDP port for values from the sim sent by the Export.lua script and can act accordingly (e.g. turn on a master caution light). Then conversely, the script listens for UDP packets in a specific format that will press a button or flip a switch.

 

This last bit is from memory so it may not be 100% accurate:

 

For your specific case of the Master Caution, Export.lua will send you a stream of packets indicating the state of the light (blinking on and off). Something like this:

404=1

404=0

404=1

404=0

etc.

(there are some other bits in the string you receive but I can't remember the exact format now).

 

To press the Master Caution button and cancel the warning, you would send UDP packets back to the sim in the form of:

C24,3001,1.0

C24,3001,0.0

 

The Export lua parses that and presses (the 1.0) then releases (the 0.0) the MC button by executing the performClickableAction() function.

[frank]

Thanks for info - helps alot....

I read over the LUA export side on DCS http://www.digitalcombatsimulator.com/en/dev_journal/lua-export/#act

 

I read your post about clickabledata.lua but where du you se the ID 404 and C24,3001,1.0,

is this clickabledata.lua the complete list of the IDs ??

 

all the best

Edited November 22, 2012 by frank

[frank]

I think i got it ;) - it's "arg=403" - can you confirm ?

 

Thanks again

Frank

[SparkyOV]

Those annunciator values come from "DCS World\Mods\aircrafts\A-10C\Cockpit\Scripts\mainpanel_init.lua"

 

snippet:

caution_lamp(404,SystemsSignals.flag_MASTER_WARNING_STUB)    -- MASTER WARNING
caution_lamp(480,SystemsSignals.flag_ENG_START_CYCLE)    -- CAUTION LIGHT PANEL
caution_lamp(481,SystemsSignals.flag_L_HYD_PRESS)        -- CAUTION LIGHT PANEL
caution_lamp(482,SystemsSignals.flag_R_HYD_PRESS)        -- CAUTION LIGHT PANEL
caution_lamp(483,SystemsSignals.flag_GUN_UNSAFE)        -- CAUTION LIGHT PANEL
caution_lamp(484,SystemsSignals.flag_ANTISKID)            -- CAUTION LIGHT PANEL
caution_lamp(485,SystemsSignals.flag_L_HYD_RES)            -- CAUTION LIGHT PANEL
caution_lamp(486,SystemsSignals.flag_R_HYD_RES)            -- CAUTION LIGHT PANEL

In the Export.lua, there is an array at the beginning where you define which events you're interested in:

 

gArguments = {[404]="%.1f"}

The ProcessMainPanel() function will only execute the SendData() function if the event is listed in that array.

Edited November 22, 2012 by SparkyOV

[frank]

Cool

 

Thank....

now i just ned to find out to code a Client in Flowstone - - - -

 

I'll Be Back

Frank

[frank]

Ohhh.... I can't seem to find the log file to see what export.lua actualy send...

is it a hidden file or what ??

 

/Frank

[SparkyOV]

I never got the log file working either. I just wrote a simple UDP listener that dumped what it received to the console.

[frank]

Okay, it's not me then ;) - nice to know

 

Could your share that listener - please ?

[SparkyOV]

Try this one:

 

http://bansky.net/echotool/

[frank]

Thanks ALOT

[frank]

Okay - i'm in great progress of learning this - thanks so fare -

 

SparkyOV, can you share your .lua files - for more understanding in the way you do it compared to "Gadroc" ??

 

/Frank

[SparkyOV]

can you share your .lua files

 

Attached. It is essentially Gadroc's version with only some minor things changed. I.e. I only send the Master Caution light from the main panel.

Export.lua

[frank]

I GOT IT ALL RUNNING

 

I CAN NOW CODE MY OWN STUFF......

 

THANKS FOR ALL THE HELP

 

"love you SparkyOV"

[SparkyOV]

Glad to be of help and good luck!

[frank]

Ohhh.... one more question....

Can i send SW-STATE (402=1.0) back to A10C via LUA the same way ?

 

/Frank

[SparkyOV]

I'm not sure I follow your question... are you asking if you can turn on a warning light? To my knowledge, no...you cannot do that. Gauges and indicator lights are read-only.

[frank]

Sorry if i was not clear, no i want to toggle SW in the sim.... ;)

 

Regards

Frank

[SparkyOV]

Ah, ok. Please re-read my other post. I explain where to find the codes for switches. Basically you will send a UDP packet back to the sim in the form of:

 

C[device ID],[button ID],[value]

 

E.g. if you wanted to "press and release" the FUNC button on the UFC, you would send:

C8,3013,1.0

C8,3013,0.0

 

E.g. to toggle TGP to ON, you would send:

C7,3004,1.0

 

TGP OFF would be:

C7,3004,-1.0

Edited November 24, 2012 by SparkyOV

[frank]

Hi Sir

Where is the "3000" comming from... ???

 

I got the "device_commands.Button_2"..... if it was "device_commands.Button_14" it should be "3014".... right !

 

But the "3000" ??

 

/Frank

[SparkyOV]

I don't remember where it comes from (I read it in another post when I was researching this) but you are correct: 3000 + 14 = 3014.

 

Edit: this is where I read it (from Gadroc): http://forums.eagle.ru/showpost.php?p=1349672&postcount=42

Edited November 28, 2012 by SparkyOV

[frank]

Thanks....

and this code goes to the buttom of the export.lua ????

 

--get the device...

ahcp = GetDevice(7) --the AHCP device ID

 

--set which switch to manipulate

gunpac_switch = 3002 --the GUN/PAC switch ID

 

--set the position you want

switch_pos_down = 0.0 --switch down for GUNARM

switch_pos_mid = 0.1 --switch middle for SAFE

switch_pos_up = 0.2 --switch up for GUN/PAC

 

--perform the actual "click" up to GUN/PAC

ahcp:performClickableAction(gunpac_switch, switch_pos_up)

 

--or safe...

ahcp:performClickableAction(gunpac_switch, switch_pos_mid)

 

--or down for GUNARM...

ahcp:performClickableAction(gunpac_switch, switch_pos_down)

[SparkyOV]

No no...that was a specific example of how to directly control a toggle using "performClickableAction".

 

The export.lua that I attached earlier is the generic way to toggle any switch via a UDP packet.