Help with Export.lua - udp code

IanH1960 · October 3, 2016

Can anyone offer assistance with debugging an issue with the Exports.lua file?

I'm looking to export data for motion software and later for control loader software. I can export data using the Export.lua file to a text file so I know the file is being called and data is available. However the issue arises when trying to enable the UDP output.

I'm using the existing code in the default Exports.lua file, so nothing special - just removing the comments to bring the default udp code into action in the LuaExportStart call (and later). However no matter what changes I try regarding the host and port settings the call to open the socket fails and returns a null value.

This behaviour is replicated on different OS's on the same PC (W7 & W10), and on W7 on a different PC. I'm aware that the default code is used by various users so I guess there's something I'm missing here.

In the DCS/Log file the error is reported thus...

=============

00015.400 ERROR Lua::Config: Call error LuaExportStart:<LUA_TTABLE>

stack traceback:

[C]: ?

[C]: in function 'try'

[string "C:\Users\IanH1960\Saved Games\DCS\Scripts\E..."]:45: in function <[string "C:\Users\IanH1960\Saved Games\DCS\Scripts\E..."]:28>.

==============

and Line 45 is the socket connect call -

c = socket.try(socket.connect(host, port)) -- connect to the listener socket

Subsequent errors arise when operations are attempted on the null valued "c". Any variations I try on host and port produce the same fail.

I've followed the fail down to the connect() function in Socket.lua and specifically the sock:connect() call, but can't get much further... I'm not at all familair with Lua so am stumbling about in the dark a bit here, don't know how to access more descriptive error messages.

Any insights would be welcome....

algerad3 · October 3, 2016

Ian;

Are you trying to manipulate the data Valued "c" ?

If so; you need to break "c" down a bit more before you can use the data.

"C" is the data stream Table.

Before using the data try something like this :

function Import() The function you want to use the data in(can be any function you make up)

local input=c:receive() Tells the function what part of the table your data is in.

if input ~= nil Then this states as long as the data is there, perform the function.

If you try something like this :

local input = c input will be nil .

if you are using Scite try this in your receiving script:

function stream()

l, e = c:receive()

if l ~= nil then

print(l)

This should display the data stream in the output panel below the coding panel.

Also you will need to break down the data stream to get the individual pieces of data.

Here is a widely used script for that.

function StrSplit(str, delim, maxNb)

if l ~= "quit" then

if string.find(str, delim) == nil then

return { str }

elseif

l =="quit" then do

c:shutdown("both")

clearfip()

end

reconnect()

end

if maxNb == nil or maxNb < 1 then

maxNb = 0 -- No limit--

end

local result = {}

local pat = "(.-)" .. delim .. "()"

local nb = 0

local lastPos

for part, pos in string.gfind(str, pat) do

nb = nb + 1

result[nb] = part

lastPos = pos

if nb == maxNb then break end

end

-- Handle the last field

if nb ~= maxNb then

result[nb + 1] = string.sub(str, lastPos)

end

return result

end

And to call the data :

function scriptrun() -- you can make your own function name.

l, e = c:receive()

data = StrSplit(l,",")

print (data[number])

end

-- "number" is numeric number of data table from "c". If you have 14 pieces of data in your export script, then data[] can be from data[1] to data[14].

This snippet will print the piece of data called for in data[number].

This is my basic understanding for lua sockets. There maybe some errors in my explanation of how it works and I am sure someone will educate us both further, but the examples given are what I use in my scripts.

IanH1960 · October 4, 2016

Hi algerad3, thanks for your reply.

It should be of value to me further down the line. But my issue at the present is simply that it appears I can't get the UDP socket to open using the code in the default Export.lua file. So I'm not yet at the stage of trying to do anything with data.

Once the socket is open my intention was to just write data out, again using the default code...

algerad3 · October 4, 2016

Do you have a receiving socket script on the other end ?

Let me look at what you have , maybe I can help further.

IanH1960 · October 4, 2016

Hi,

Thanks....

I've tried with an application listening and without. But it shouldn't make any difference the UDP socket open and send should succeed regardless of whether or not anything is listening in at the other end.

Here's what I have - it's the default Export.lua file with the UDP comms code uncommented...

--- DO NOT EDIT.
--- This file is for reference purposes only
--- All user modifications should go to $HOME\Saved Games\DCS\Scripts\Export.lua

-- Data export script for DCS, version 1.2.
-- Copyright (C) 2006-2014, Eagle Dynamics.
-- See http://www.lua.org for Lua script system info 
-- We recommend to use the LuaSocket addon (http://www.tecgraf.puc-rio.br/luasocket) 
-- to use standard network protocols in Lua scripts.
-- LuaSocket 2.0 files (*.dll and *.lua) are supplied in the Scripts/LuaSocket folder
-- and in the installation folder of the DCS. 

-- Expand the functionality of following functions for your external application needs.
-- Look into Saved Games\DCS\Logs\dcs.log for this script errors, please.

--[[    
-- Uncomment if using Vector class from the Scripts\Vector.lua file 
local lfs = require('lfs')
LUA_PATH = "?;?.lua;"..lfs.currentdir().."/Scripts/?.lua"
require 'Vector'
-- See the Scripts\Vector.lua file for Vector class details, please.
--]]

local default_output_file = nil

function LuaExportStart()
-- Works once just before mission start.
-- Make initializations of your files or connections here.
-- For example:
-- 1) File
--   default_output_file = io.open(lfs.writedir().."/Logs/Export.log", "w")
-- 2) Socket
 package.path  = package.path..";"..lfs.currentdir().."/LuaSocket/?.lua"
 package.cpath = package.cpath..";"..lfs.currentdir().."/LuaSocket/?.dll"
 socket = require("socket")
 
 --host = host or "localhost"
 --port = port or 8080
 
 --and try more explicit host & port
 host = "127.0.0.1"
 port = 48001
 
 c = socket.try(socket.connect(host, port)) -- connect to the listener socket
 c:setoption("tcp-nodelay",true) -- set immediate transmission mode
-- 
--     local version = LoGetVersionInfo() --request current version info (as it showed by Windows Explorer fo DCS.exe properties)
--    if version and default_output_file then
--         
--         default_output_file:write("ProductName: "..version.ProductName..'\n')
--         default_output_file:write(string.format("FileVersion: %d.%d.%d.%d\n",
--                                                 version.FileVersion[1],
--                                                 version.FileVersion[2],
--                                                 version.FileVersion[3],
--                                                 version.FileVersion[4]))
--         default_output_file:write(string.format("ProductVersion: %d.%d.%d.%d\n",
--                                                 version.ProductVersion[1],
--                                                 version.ProductVersion[2],
--                                                 version.ProductVersion[3],  -- head  revision (Continuously growth)
--                                                version.ProductVersion[4])) -- build number   (Continuously growth)    
--    end

end

function LuaExportBeforeNextFrame()
-- Works just before every simulation frame.

-- Call Lo*() functions to set data to Lock On here
-- For example:
--    LoSetCommand(3, 0.25) -- rudder 0.25 right 
--    LoSetCommand(64) -- increase thrust

end

function LuaExportAfterNextFrame()
-- Works just after every simulation frame.

-- Call Lo*() functions to get data from Lock On here.
-- For example:
   local t = LoGetModelTime()
   local name = LoGetPilotName()
   local altBar = LoGetAltitudeAboveSeaLevel()
   local altRad = LoGetAltitudeAboveGroundLevel()
   local pitch, bank, yaw = LoGetADIPitchBankYaw()
   local engine = LoGetEngineInfo()
   local HSI    = LoGetControlPanel_HSI()
-- Then send data to your file or to your receiving program:
-- 1) File
-- if default_output_file then
--      default_output_file:write(string.format("t = %.2f, name = %s, altBar = %.2f, altRad = %.2f, pitch = %.2f, bank = %.2f, yaw = %.2f\n", t, name, altBar, altRad, 57.3*pitch, 57.3*bank, 57.3*yaw))
--      default_output_file:write(string.format("t = %.2f ,RPM left = %f  fuel_internal = %f \n",t,engine.RPM.left,engine.fuel_internal))
--      default_output_file:write(string.format("ADF = %f  RMI = %f\n ",57.3*HSI.ADF,57.3*HSI.RMI))
--    end
-- 2) Socket
   socket.try(c:send(string.format("t = %.2f, name = %s, altBar = %.2f, alrRad = %.2f, pitch = %.2f, bank = %.2f, yaw = %.2f\n", t, name, altRad, altBar, pitch, bank, yaw)))

end

function LuaExportStop()
-- Works once just after mission stop.
-- Close files and/or connections here.
-- 1) File
  if default_output_file then
     default_output_file:close()
     default_output_file = nil
  end
-- 2) Socket
   socket.try(c:send("quit")) -- to close the listener socket
   c:close()
end

function LuaExportActivityNextEvent(t)
   local tNext = t

-- Put your event code here and increase tNext for the next event
-- so this function will be called automatically at your custom
-- model times. 
-- If tNext == t then the activity will be terminated.

-- For example:
-- 1) File
--  if default_output_file then
   --    local o = LoGetWorldObjects()
   --        for k,v in pairs(o) do
   --            default_output_file:write(string.format("t = %.2f, ID = %d, name = %s, country = %s(%s), LatLongAlt = (%f, %f, %f), heading = %f\n", t, k, v.Name, v.Country, v.Coalition, v.LatLongAlt.Lat, v.LatLongAlt.Long, v.LatLongAlt.Alt, v.Heading))
   --        end
   --    local trg = LoGetLockedTargetInformation()
   --  default_output_file:write(string.format("locked targets ,time = %.2f\n",t))
   --    for i,cur in pairs(trg) do
   --      default_output_file:write(string.format("ID = %d, position = (%f,%f,%f) , V = (%f,%f,%f),flags = 0x%x\n",cur.ID,cur.position.p.x,cur.position.p.y,cur.position.p.z,cur.velocity.x,cur.velocity.y,cur.velocity.z,cur.flags))
   --    end
   --    local route = LoGetRoute()
   --    default_output_file:write(string.format("t = %f\n",t))
   --    if route then
   --          default_output_file:write(string.format("Goto_point :\n point_num = %d ,wpt_pos = (%f, %f ,%f) ,next %d\n",route.goto_point.this_point_num,route.goto_point.world_point.x,route.goto_point.world_point.y,route.goto_point.world_point.z,route.goto_point.next_point_num))
   --          default_output_file:write(string.format("Route points:\n"))
   --        for num,wpt in pairs(route.route) do
   --          default_output_file:write(string.format("point_num = %d ,wpt_pos = (%f, %f ,%f) ,next %d\n",wpt.this_point_num,wpt.world_point.x,wpt.world_point.y,wpt.world_point.z,wpt.next_point_num))
   --        end
   --    end

   --    local stations = LoGetPayloadInfo()
   --    if stations then
   --        default_output_file:write(string.format("Current = %d \n",stations.CurrentStation))

   --        for i_st,st in pairs (stations.Stations) do
   --            local name = LoGetNameByType(st.weapon.level1,st.weapon.level2,st.weapon.level3,st.weapon.level4);
   --            if name then
   --            default_output_file:write(string.format("weapon = %s ,count = %d \n",name,st.count))
   --            else
   --            default_output_file:write(string.format("weapon = {%d,%d,%d,%d} ,count = %d \n", st.weapon.level1,st.weapon.level2,st.weapon.level3,st.weapon.level4,st.count))
   --            end
   --        end
   --    end 

   --    local Nav = LoGetNavigationInfo()
   --    if Nav then
   --        default_output_file:write(string.format("%s ,%s  ,ACS: %s\n",Nav.SystemMode.master,Nav.SystemMode.submode,Nav.ACS.mode))
   --        default_output_file:write(string.format("Requirements :\n\t  roll %d\n\t pitch %d\n\t speed %d\n",Nav.Requirements.roll,Nav.Requirements.pitch,Nav.Requirements.speed))
   --    end
--    end



--    tNext = tNext + 1.0
-- 2) Socket
--    local o = LoGetWorldObjects()
--    for k,v in pairs(o) do
--      socket.try(c:send(string.format("t = %.2f, ID = %d, name = %s, country = %s(%s), LatLongAlt = (%f, %f, %f), heading = %f\n", t, k, v.Name, v.Country, v.Coalition, v.LatLongAlt.x, v.LatLongAlt.Long, v.LatLongAlt.Alt, v.Heading)))
--    end
--    tNext = tNext + 1.0

   return tNext
end

--[[

-- Lock On supports Lua coroutines using internal LoCreateCoroutineActivity() and
-- external CoroutineResume() functions. Here is an example of using scripted coroutine.

Coroutines = {}    -- global coroutines table
CoroutineIndex = 0    -- global last created coroutine index

-- This function will be called by Lock On model timer for every coroutine to resume it
function CoroutineResume(index, tCurrent)
   -- Resume coroutine and give it current model time value
   coroutine.resume(Coroutines[index], tCurrent)
   return coroutine.status(Coroutines[index]) ~= "dead"
   -- If status == "dead" then Lock On activity for this coroutine dies too 
end

-- Coroutine function example using coroutine.yield() to suspend 
function f(t)
   local tNext = t
   local file = io.open("./Temp/Coroutine.log", "w")
   file:write(string.format("t = %f, started\n", tNext))
   tNext = coroutine.yield()
   for i = 1,10 do
       file:write(string.format("t = %f, continued\n", tNext))
       tNext = coroutine.yield()
   end
   file:write(string.format("t = %f, finished\n", tNext))
   file:close()
end

-- Create your coroutines and save them in Coriutines table, e.g.:
CoroutineIndex = CoroutineIndex + 1
Coroutines[CoroutineIndex] = coroutine.create(f) 

-- Use LoCreateCoroutineActivity(index, tStart, tPeriod) to plan your coroutines
-- activity at model times, e.g.:
LoCreateCoroutineActivity(CoroutineIndex, 1.0, 3.0) -- to start at 1.0 second with 3.0 seconds period
-- Coroutine output in the Coroutine.log file:
-- t = 1.000000, started
-- t = 4.000000, continued
-- t = 7.000000, continued
-- t = 10.000000, continued
-- t = 13.000000, continued
-- t = 16.000000, continued
-- t = 19.000000, continued
-- t = 22.000000, continued
-- t = 25.000000, continued
-- t = 28.000000, continued
-- t = 31.000000, continued
-- t = 34.000000, finished
--]]

--[[ You can use registered Lock On internal data exporting functions in this script
and in your scripts called from this script.

Note: following functions are implemented for exporting technology experiments only,
so they may be changed or removed in the future by developers.

All returned values are Lua numbers if not pointed other type.

Output:
LoIsObjectExportAllowed() -- returns true if world objects data is available
LoIsSensorExportAllowed() -- returns true if radar/targets data is available
LoIsOwnshipExportAllowed() -- true if ownship data is available

LoGetModelTime() -- returns current model time (args - 0, results - 1 (sec))
LoGetMissionStartTime() -- returns mission start time (args - 0, results - 1 (sec))
LoGetPilotName() -- (args - 0, results - 1 (text string))
LoGetPlayerPlaneId() -- (args - 0, results - 1 (number))
LoGetIndicatedAirSpeed() -- (args - 0, results - 1 (m/s))
LoGetTrueAirSpeed() -- (args - 0, results - 1 (m/s))
LoGetAltitudeAboveSeaLevel() -- (args - 0, results - 1 (meters))
LoGetAltitudeAboveGroundLevel() -- (args - 0, results - 1 (meterst))
LoGetAngleOfAttack() -- (args - 0, results - 1 (rad))
LoGetAccelerationUnits() -- (args - 0, results - table {x = Nx,y = NY,z = NZ} 1 (G))
LoGetVerticalVelocity()  -- (args - 0, results - 1(m/s))
LoGetMachNumber()        -- (args - 0, results - 1)
LoGetADIPitchBankYaw()   -- (args - 0, results - 3 (rad))
LoGetMagneticYaw()       -- (args - 0, results - 1 (rad)
LoGetGlideDeviation()    -- (args - 0,results - 1)( -1 < result < 1)
LoGetSideDeviation()     -- (args - 0,results - 1)( -1 < result < 1)
LoGetSlipBallPosition()  -- (args - 0,results - 1)( -1 < result < 1)
LoGetBasicAtmospherePressure() -- (args - 0,results - 1) (mm hg)
LoGetControlPanel_HSI()  -- (args - 0,results - table)
result = 
{
   ADF_raw, (rad)
   RMI_raw, (rad)
   Heading_raw, (rad)
   HeadingPointer, (rad)
   Course, (rad)
   BearingPointer, (rad)
   CourseDeviation, (rad)
}
LoGetEngineInfo() -- (args - 0 ,results = table)
engineinfo =
{
   RPM = {left, right},(%)
   Temperature = { left, right}, (Celcium degrees)
   HydraulicPressure = {left ,right},kg per square centimeter
   FuelConsumption   = {left ,right},kg per sec
   fuel_internal      -- fuel quantity internal tanks    kg
   fuel_external      -- fuel quantity external tanks    kg
           
}

LoGetRoute()  -- (args - 0,results = table)
get_route_result =
{
   goto_point, -- next waypoint
   route       -- all waypoints of route (or approach route if arrival or landing)
}
waypoint_table =
{
   this_point_num,        -- number of point ( >= 0)
   world_point = {x,y,z}, -- world position in meters
   speed_req,             -- speed at point m/s 
   estimated_time,        -- sec
   next_point_num,           -- if -1 that's the end of route
   point_action           -- name of action "ATTACKPOINT","TURNPOINT","LANDING","TAKEOFF"
}
LoGetNavigationInfo() (args - 0,results - 1( table )) -- information about ACS
get_navigation_info_result =
{
   SystemMode = {master,submode}, -- (string,string) current mode and submode 
--[=[
   master values (depend of plane type)
               "NAV"  -- navigation
               "BVR"  -- beyond visual range AA mode
               "CAC"  -- close air combat                
               "LNG"  -- longitudinal mode
               "A2G"  -- air to ground
               "OFF"  -- mode is absent
   submode values (depend of plane type and master mode)
   "NAV" submodes
   {
       "ROUTE"
       "ARRIVAL"
       "LANDING"
       "OFF" 
   }
   "BVR" submodes
   { 
       "GUN"   -- Gunmode
       "RWS"   -- RangeWhileSearch
       "TWS"   -- TrackWhileSearch
       "STT"   -- SingleTrackTarget (Attack submode)
       "OFF" 
   }
   "CAC" submodes
   {
       "GUN"
       "VERTICAL_SCAN"
       "BORE"
       "HELMET"  
       "STT"
       "OFF"
   }
   "LNG" submodes
   {
       "GUN"
       "OFF"
       "FLOOD"  -- F-15 only
   }
   "A2G" submodes
   {
       "GUN"
       "ETS"       -- Emitter Targeting System On
       "PINPOINT"  
       "UNGUIDED"  -- unguided weapon (free fall bombs, dispensers , rockets) 
       "OFF"
   }
--]=]
   Requirements =  -- required parameters of flight
   {
       roll,       -- required roll,pitch.. , etc.
       pitch,       
       speed,    
       vertical_speed, 
       altitude,
   }
   ACS =   -- current state of the Automatic Control System
   {
       mode = string , 
       --[=[
           mode values  are :     
                   "FOLLOW_ROUTE",
                   "BARO_HOLD",          
                   "RADIO_HOLD",       
                   "BARO_ROLL_HOLD",     
                   "HORIZON_HOLD",   
                   "PITCH_BANK_HOLD",
                   "OFF"
       --]=]
       autothrust , -- 1(true) if autothrust mode is on or 0(false) when not;  
   }
}
LoGetMCPState() -- (args - 0, results - 1 (table of key(string).value(boolean))
   returned table keys for LoGetMCPState():
       "LeftEngineFailure"
       "RightEngineFailure"
       "HydraulicsFailure"
       "ACSFailure"
       "AutopilotFailure"
       "AutopilotOn"
       "MasterWarning"
       "LeftTailPlaneFailure"
       "RightTailPlaneFailure"
       "LeftAileronFailure"
       "RightAileronFailure"
       "CanopyOpen"
       "CannonFailure"
       "StallSignalization"
       "LeftMainPumpFailure"
       "RightMainPumpFailure"
       "LeftWingPumpFailure"
       "RightWingPumpFailure"
       "RadarFailure"
       "EOSFailure"
       "MLWSFailure"
       "RWSFailure"
       "ECMFailure"
       "GearFailure"
       "MFDFailure"
       "HUDFailure"
       "HelmetFailure"
       "FuelTankDamage"
LoGetObjectById() -- (args - 1 (number), results - 1 (table))
Returned object table structure:
{ 
   Name = 
   Type =  {level1,level2,level3,level4},  ( see Scripts/database/wsTypes.lua) Subtype is absent  now
   Country   =   number ( see Scripts/database/db_countries.lua
   Coalition = 
   CoalitionID = number ( 1 or 2 )
   LatLongAlt = { Lat = , Long = , Alt = }
   Heading =   radians
   Pitch      =   radians
   Bank      =  radians
   Position = {x,y,z} -- in internal DCS coordinate system ( see convertion routnes below)
   -- only for units ( Planes,Hellicopters,Tanks etc)
   UnitName    = unit name from mission (UTF8)  
   GroupName = unit name from mission (UTF8)
       Flags = {
       RadarActive = true if the unit has its radar on
       Human = true if the unit is human-controlled
       Jamming = true if the unit uses EMI jamming
       IRJamming = -- same for IR jamming
       Born = true if the unit is born (activated)
       AI_ON = true if the unit's AI is active
       Invisible = true if the unit is invisible
       Static - true if the unit is a static object
       }
}


LoGetWorldObjects() -- (args - 0- 1, results - 1 (table of object tables))  arg can be
   "units" (default)
   "ballistic" - for different type of unguided munition ()bombs,shells,rockets)
   "airdromes" - to get airdrome objects
Returned table index = object identificator
Returned object table structure (see LoGetObjectById())

LoGetSelfData return the same result as LoGetObjectById but only for your aircraft and not depended on anti-cheat setting in Export/Config.lua

LoGetAltitude(x, z) -- (args - 2 : meters, results - 1 : altitude above terrain surface, meters)

LoGetCameraPosition() -- (args - 0, results - 1 : view camera current position table:
   {
       x = {x = ..., y = ..., z = ...},    -- orientation x-vector
       y = (x = ..., y = ..., z = ...},    -- orientation y-vector
       z = {x = ..., y = ..., z = ...},    -- orientation z-vector
       p = {x = ..., y = ..., z = ...}        -- point vector 
   }
   all coordinates are in meters. You can use Vector class for position vectors.
   
-- Weapon Control System
LoGetNameByType () -- args 4 (number : level1,level2,level3,level4), result string

LoGetTargetInformation()       -- (args - 0, results - 1 (table of current targets tables)) 
LoGetLockedTargetInformation() -- (args - 0, results - 1 (table of current locked targets tables)) 
this functions return the table of the next target data
target =
{
   ID ,                                  -- world ID (may be 0 ,when ground point track)
   type = {level1,level2,level3,level4}, -- world database classification
   country = ,                           -- object country
   position = {x = {x,y,z},   -- orientation X ort  
               y = {x,y,z},   -- orientation Y ort
               z = {x,y,z},   -- orientation Z ort
               p = {x,y,z}}   -- position of the center  
   velocity =        {x,y,z}, -- world velocity vector m/s
   distance = ,               -- distance in meters
   convergence_velocity = ,   -- closing speed in m/s
   mach = ,                   -- M number
   delta_psi = ,              -- aspect angle rad
   fim = ,                    -- viewing angle horizontal (in your body axis) rad
   fin = ,                    -- viewing angle vertical   (in your body axis) rad
   flags = ,                   -- field with constants detemining  method of the tracking 
                               --    whTargetRadarView        = 0x0002;    -- Radar review (BVR) 
                               --    whTargetEOSView            = 0x0004;    -- EOS   review (BVR)
                               --    whTargetRadarLock        = 0x0008;    -- Radar lock (STT)  == whStaticObjectLock (pinpoint) (static objects,buildings lock)
                               --    whTargetEOSLock            = 0x0010;    -- EOS   lock (STT)  == whWorldObjectLock (pinpoint)  (ground units lock)
                               --    whTargetRadarTrack        = 0x0020;    -- Radar lock (TWS)
                               --    whTargetEOSTrack        = 0x0040;    -- Radar lock (TWS)  == whImpactPointTrack (pinpoint) (ground point track)
                               --    whTargetNetHumanPlane    = 0x0200;    -- net HumanPlane
                               --    whTargetAutoLockOn      = 0x0400;    -- EasyRadar  autolockon
                               --    whTargetLockOnJammer      = 0x0800;    -- HOJ   mode

   reflection = ,             -- target cross section square meters
   course = ,                 -- target course rad
   isjamming = ,              -- target ECM on or not
   start_of_lock = ,          -- time of the beginning of lock
   forces = { x,y,z},         -- vector of the acceleration units 
   updates_number = ,         -- number of the radar updates
   
   jammer_burned = true/false -- indicates that jammer are burned
}
LoGetSightingSystemInfo() -- sight system info
{
   Manufacturer  = "RUS"/"USA"
   LaunchAuthorized  = true/false
   ScanZone =
       {
               position
               {
                   azimuth
                   elevation
                   if Manufacturer  == "RUS" then
                           distance_manual
                          exceeding_manual
                   end
                  }
               coverage_H
               {
                   min
                   max
               }
               size
               {
                   azimuth
                   elevation
               }
       }
       scale
       {
           distance                    
           azimuth
       }
       TDC 
       {
               x
               y
       }
   
       radar_on   = true/false
       optical_system_on= true/false
       ECM_on= true/false
       laser_on= true/false
       
       PRF = 
       {
           current ,    -- current PRF value ( changed in ILV mode ) , values are "MED" or "HI"
           selection ,  -- selection value can be  "MED"  "HI" or "ILV"
       }

}
LoGetTWSInfo() -- return Threat Warning System status (result  the table )
result_of_LoGetTWSInfo =
{
   Mode = , -- current mode (0 - all ,1 - lock only,2 - launch only
   Emitters = {table of emitters}
}
emitter_table =
{
   ID =, -- world ID
   Type = {level1,level2,level3,level4}, -- world database classification of emitter
   Power =, -- power of signal
   Azimuth =,
   Priority =,-- priority of emitter (int)
   SignalType =, -- string with vlues: "scan" ,"lock", "missile_radio_guided","track_while_scan";
}
LoGetPayloadInfo() -- return weapon stations
result_of_LoGetPayloadInfo 
{
   CurrentStation = , -- number of current station (0 if no station selected)
   Stations = {},-- table of stations
   Cannon =
   {
       shells -- current shells count 
   }
}
station 
{
   container = true/false , -- is station container
   weapon    = {level1,level2,level3,level4} , -- world database classification of weapon
   count = ,
}
LoGetMechInfo() -- mechanization info
result_is =
{
   gear          = {status,value,main = {left = {rod},right = {rod},nose =  {rod}}}
   flaps          = {status,value}  
   speedbrakes   = {status,value}
   refuelingboom = {status,value}
   airintake     = {status,value}
   noseflap      = {status,value}
   parachute     = {status,value}
   wheelbrakes   = {status,value}
   hook          = {status,value}
   wing          = {status,value}
   canopy        = {status,value}
   controlsurfaces = {elevator = {left,right},eleron = {left,right},rudder = {left,right}} -- relative vlues (-1,1) (min /max) (sorry:(
} 

LoGetRadioBeaconsStatus() -- beacons lock
{
   airfield_near    ,
   airfield_far,
   course_deviation_beacon_lock    ,
   glideslope_deviation_beacon_lock
}

LoGetWingInfo() -- your wingmens info result is vector of wingmens with value:
wingmen_is =
{
   wingmen_id   -- world id of wingmen
   wingmen_position -- world position {x = {x,y,z},   -- orientation X ort  
                                       y = {x,y,z},   -- orientation Y ort
                                       z = {x,y,z},   -- orientation Z ort
                                       p = {x,y,z}}   -- position of the center  
   current_target -- world id of target
   ordered_target -- world id of target 
   current_task   -- name of task
   ordered_task   -- name of task 
   --[=[
   name can be :
           "NOTHING"
           "ROUTE"
           "DEPARTURE"
           "ARRIVAL"
           "REFUELING"
           "SOS"    -- Save Soul of your Wingmen :) 
           "ROUTE"
           "INTERCEPT"
           "PATROL"
           "AIR_ATTACK"
           "REFUELING"
           "AWACS"
           "RECON"
           "ESCORT"
           "PINPOINT"
           "CAS"
           "MISSILE_EVASION"
           "ENEMY_EVASION"
           "SEAD"
           "ANTISHIP"
           "RUNWAY_ATTACK"
           "TRANSPORT"
           "LANDING"
           "TAKEOFF"
           "TAXIING"
   --]=]

}

Coordinates convertion :
{x,y,z}                  = LoGeoCoordinatesToLoCoordinates(longitude_degrees,latitude_degrees)
{latitude,longitude}  = LoLoCoordinatesToGeoCoordinates(x,z);

LoGetVectorVelocity          =  {x,y,z} -- vector of self velocity (world axis)
LoGetAngularVelocity      =  {x,y,z} -- angular velocity euler angles , rad per sec 
LoGetVectorWindVelocity   =  {x,y,z} -- vector of wind velocity (world axis)
LoGetWingTargets          =   table of {x,y,z}
LoGetSnares               =   {chaff,flare}
Input:
LoSetCameraPosition(pos) -- (args - 1: view camera current position table, results - 0)
   pos table structure: 
   {
       x = {x = ..., y = ..., z = ...},    -- orientation x-vector
       y = (x = ..., y = ..., z = ...},    -- orientation y-vector
       z = {x = ..., y = ..., z = ...},    -- orientation z-vector
       p = {x = ..., y = ..., z = ...}        -- point vector 
   }
   all coordinates are in meters. You can use Vector class for position vectors.

LoSetCommand(command, value) -- (args - 2, results - 0)
-1.0 <= value <= 1.0

Some analogous joystick/mouse input commands:
command = 2001 - joystick pitch
command = 2002 - joystick roll
command = 2003 - joystick rudder
-- Thrust values are inverted for some internal reasons, sorry.
command = 2004 - joystick thrust (both engines)
command = 2005 - joystick left engine thrust
command = 2006 - joystick right engine thrust
command = 2007 - mouse camera rotate left/right  
command = 2008 - mouse camera rotate up/down
command = 2009 - mouse camera zoom 
command = 2010 - joystick camera rotate left/right
command = 2011 - joystick camera rotate up/down
command = 2012 - joystick camera zoom 
command = 2013 - mouse pitch
command = 2014 - mouse roll
command = 2015 - mouse rudder
-- Thrust values are inverted for some internal reasons, sorry.
command = 2016 - mouse thrust (both engines)
command = 2017 - mouse left engine thrust
command = 2018 - mouse right engine thrust
command = 2019 - mouse trim pitch
command = 2020 - mouse trim roll
command = 2021 - mouse trim rudder
command = 2022 - joystick trim pitch
command = 2023 - joystick trim roll
command = 2024 - trim rudder
command = 2025 - mouse rotate radar antenna left/right
command = 2026 - mouse rotate radar antenna up/down
command = 2027 - joystick rotate radar antenna left/right
command = 2028 - joystick rotate radar antenna up/down
command = 2029 - mouse MFD zoom
command = 2030 - joystick MFD zoom
command = 2031 - mouse move selecter left/right
command = 2032 - mouse move selecter up/down
command = 2033 - joystick move selecter left/right
command = 2034 - joystick move selecter up/down

Some discrete keyboard input commands (value is absent):
command = 7    -- Cockpit view                
command = 8    -- External view                        
command = 9    -- Fly-by view                        
command = 10 -- Ground units view                
command = 11 -- Civilian transport view                         
command = 12 -- Chase view                        
command = 13 -- Navy view                        
command = 14 -- Close air combat view                        
command = 15 -- Theater view                        
command = 16 -- Airfield (free camera) view                        
command = 17 --    Instruments panel view on                
command = 18 -- Instruments panel view off                
command = 19 -- Padlock toggle                        
command = 20 --    Stop padlock (in cockpit only)                
command = 21 --    External view for my plane                             
command = 22 --    Automatic chase mode for launched weapon                        
command = 23 --    View allies only filter                     
command = 24 --    View enemies only filter                 
command = 26 -- View allies & enemies filter                     
command = 28 -- Rotate the camera left fast                         
command = 29 -- Rotate the camera right fast                         
command = 30 -- Rotate the camera up fast                     
command = 31 -- Rotate the camera down fast                         
command = 32 -- Rotate the camera left slow                     
command = 33 -- Rotate the camera right slow                     
command = 34 -- Rotate the camera up slow                        
command = 35 -- Rotate the camera down slow                    
command = 36 -- Return the camera to default position                         
command = 37 --    View zoom in fast                     
command = 38 -- View zoom out fast                         
command = 39 -- View zoom in slow                 
command = 40 -- View zoom out slow                
command = 41 -- Pan the camera left                     
command = 42 -- Pan the camera right                 
command = 43 -- Pan the camera up                     
command = 44 -- Pan the camera down                     
command = 45 -- Pan the camera left slow                 
command = 46 -- Pan the camera right slow             
command = 47 -- Pan the camera up slow                 
command = 48 -- Pan the camera down slow                 
command = 49 -- Disable panning the camera                 
command = 50 -- Allies chat                 
command = 51 -- Mission quit                             
command = 52 -- Suspend/resume model time                         
command = 53 -- Accelerate model time                         
command = 54 -- Step by step simulation when model time is suspended                         
command = 55 --    Take control in the track                     
command = 57 -- Common chat                        
command = 59 -- Altitude stabilization             
command = 62 -- Autopilot                     
command = 63 -- Auto-thrust                     
command = 64 -- Power up                 
command = 65 -- Power down             
command = 68 -- Gear                     
command = 69 -- Hook                         
command = 70 -- Pack wings                
command = 71 -- Canopy                         
command = 72 -- Flaps                         
command = 73 -- Air brake                     
command = 74 -- Wheel brakes on                 
command = 75 -- Wheel brakes off                 
command = 76 -- Release drogue chute                     
command = 77 -- Drop snar                     
command = 78 -- Wingtip smoke             
command = 79 -- Refuel on                     
command = 80 -- Refuel off                 
command = 81 -- Salvo                 
command = 82 -- Jettison weapons             
command = 83 -- Eject                         
command = 84 -- Fire on                         
command = 85 -- Fire off                     
command = 86 -- Radar                 
command = 87 -- EOS                     
command = 88 -- Rotate the radar antenna left                     
command = 89 -- Rotate the radar antenna right                 
command = 90 -- Rotate the radar antenna up                 
command = 91 -- Rotate the radar antenna down                     
command = 92 -- Center the radar antenna                 
command = 93 -- Trim left                     
command = 94 -- Trim right                     
command = 95 -- Trim up                     
command = 96 -- Trim down                     
command = 97 -- Cancel trimming                 
command = 98 -- Trim the rudder left             
command = 99 -- Trim the rudder right             
command = 100 -- Lock the target             
command = 101 -- Change weapon                 
command = 102 -- Change target                 
command = 103 -- MFD zoom in                     
command = 104 -- MFD zoom out                     
command = 105 -- Navigation mode   (value 1, 2, 3, 4 for navmode_none, navmode_route, navmode_arrival ,navmode_landing    )
command = 106 -- BVR mode                     
command = 107 -- VS    mode                     
command = 108 -- Bore mode                     
command = 109 -- Helmet mode                 
command = 110 -- FI0 mode                 
command = 111 -- A2G mode                 
command = 112 -- Grid mode                     
command = 113 -- Cannon                 
command = 114 -- Dispatch wingman - complete mission and RTB                    
command = 115 -- Dispatch wingman - complete mission and rejoin                     
command = 116 -- Dispatch wingman - toggle formation                     
command = 117 -- Dispatch wingman - join up formation                     
command = 118 -- Dispatch wingman - attack my target             
command = 119 -- Dispatch wingman - cover my six                 
command = 120 -- Take off from ship            
command = 121 -- Cobra                         
command = 122 -- Sound on/off                      
command = 123 -- Sound recording on                         
command = 124 -- Sound recording off                     
command = 125 -- View right mirror on                 
command = 126 -- View right mirror off                 
command = 127 -- View left mirror on                 
command = 128 -- View left mirror off                 
command = 129 -- Natural head movement view        
command = 131 -- LSO view            
command = 135 -- Weapon to target view         
command = 136 -- Active jamming 
command = 137 -- Increase details level             
command = 138 -- Decrease details level             
command = 139 -- Scan zone left                     
command = 140 -- Scan zone right             
command = 141 -- Scan zone up                         
command = 142 -- Scan zone down                     
command = 143 -- Unlock target                         
command = 144 -- Reset master warning 
command = 145 -- Flaps on 
command = 146 -- Flaps off 
command = 147 -- Air brake on 
command = 148 -- Air brake off 
command = 149 -- Weapons view                 
command = 150 -- Static objects view            
command = 151 -- Mission targets view                 
command = 152 -- Info bar details                 
command = 155 -- Refueling boom             
command = 156 -- HUD color selection            
command = 158 -- Jump to terrain view             
command = 159 -- Starts moving F11 camera forward                 
command = 160 -- Starts moving F11 camera backward            
command = 161 -- Power up left engine 
command = 162 -- Power down left engine 
command = 163 -- Power up right engine 
command = 164 -- Power down right engine 
command = 169 -- Immortal mode             
command = 175 -- On-board lights             
command = 176 -- Drop snar once             
command = 177 -- Default cockpit angle of view             
command = 178 -- Jettison fuel tanks         
command = 179 -- Wingmen commands panel        
command = 180 -- Reverse objects switching in views    
command = 181 -- Forward objects switching in views             
command = 182 -- Ignore current object in views             
command = 183 -- View all ignored objects in views again                 
command = 184 -- Padlock terrain point             
command = 185 -- Reverse the camera                     
command = 186 -- Plane up                     
command = 187 -- Plane down 
command = 188 -- Bank left 
command = 189 -- Bank right
command = 190 -- Local camera rotation mode             
command = 191 -- Decelerate model time                     
command = 192 -- Jump into the other plane                   
command = 193 -- Nose down 
command = 194 -- Nose down end 
command = 195 -- Nose up 
command = 196 -- Nose up end 
command = 197 -- Bank left 
command = 198 -- Bank left end 
command = 199 -- Bank right 
command = 200 -- Bank right end 
command = 201 -- Rudder left 
command = 202 -- Rudder left end 
command = 203 -- Rudder right 
command = 204 -- Rudder right end 
command = 205 -- View up right                     
command = 206 -- View down right                     
command = 207 -- View down left                     
command = 208 -- View up left                         
command = 209 -- View stop                         
command = 210 -- View up right slow             
command = 211 -- View down right slow                 
command = 212 -- View down left slow                 
command = 213 -- View up left slow                     
command = 214 -- View stop slow                     
command = 215 -- Stop trimming 
command = 226 -- Scan zone up right
command = 227 -- Scan zone down right 
command = 228 -- Scan zone down left 
command = 229 -- Scan zone up left 
command = 230 -- Scan zone stop 
command = 231 -- Radar antenna up right 
command = 232 -- Radar antenna down right
command = 233 -- Radar antenna down left 
command = 234 -- Radar antenna up left
command = 235 -- Radar antenna stop
command = 236 -- Save snap view angles                 
command = 237 -- Cockpit panel view toggle     
command = 245 -- Coordinates units toggle
command = 246 -- Disable model time acceleration             
command = 252 -- Automatic spin recovery 
command = 253 -- Speed retention 
command = 254 -- Easy landing 
command = 258 -- Threat missile padlock 
command = 259 -- All missiles padlock
command = 261 -- Marker state                 
command = 262 -- Decrease radar scan area 
command = 263 -- Increase radar scan area 
command = 264 -- Marker state plane                 
command = 265 -- Marker state rocket                 
command = 266 -- Marker state plane ship                 
command = 267 -- Ask AWACS home airbase 
command = 268 -- Ask AWACS available tanker
command = 269 -- Ask AWACS nearest target 
command = 270 -- Ask AWACS declare target 
command = 271 -- Easy radar 
command = 272 -- Auto lock on nearest aircraft 
command = 273 -- Auto lock on center aircraft 
command = 274 -- Auto lock on next aircraft 
command = 275 -- Auto lock on previous aircraft 
command = 276 -- Auto lock on nearest surface target 
command = 277 -- Auto lock on center surface target 
command = 278 -- Auto lock on next surface target 
command = 279 -- Auto lock on previous surface target 
command = 280 -- Change cannon rate of fire
command = 281 -- Change ripple quantity 
command = 282 -- Change ripple interval 
command = 283 -- Switch master arm 
command = 284 -- Change release mode 
command = 285 -- Change radar mode RWS/TWS 
command = 286 -- Change RWR/SPO mode
command = 288 -- Flight clock reset 
command = 289 -- Zoom in slow stop             
command = 290 -- Zoom out slow stop            
command = 291 -- Zoom in stop                 
command = 292 -- Zoom out stop                     
command = 295 -- View horizontal stop                     
command = 296 -- View vertical stop                 
command = 298 -- Jump to fly-by view             
command = 299 -- Camera jiggle                 
command = 300 -- Cockpit illumination 
command = 308 -- Change ripple interval down         
command = 309 -- Engines start                 
command = 310 -- Engines stop             
command = 311 -- Left engine start             
command = 312 -- Right engine start             
command = 313 -- Left engine stop                 
command = 314 -- Right engine stop             
command = 315 -- Power on/off                     
command = 316 -- Altimeter pressure increase     
command = 317 -- Altimeter pressure decrease     
command = 318 -- Altimeter pressure stop 
command = 321 -- Fast mouse in views                 
command = 322 -- Slow mouse in views                
command = 323 -- Normal mouse in views             
command = 326 -- HUD only view             
command = 327 -- Recover my plane                 
command = 328 -- Toggle gear light Near/Far/Off         
command = 331 -- Fast keyboard in views            
command = 332 -- Slow keyboard in views             
command = 333 -- Normal keyboard in views             
command = 334 -- Zoom in for external views             
command = 335 -- Stop zoom in for external views 
command = 336 -- Zoom out for external views 
command = 337 -- Stop zoom out for external views 
command = 338 -- Default zoom in external views 
command = 341 -- A2G combat view             
command = 342 -- Camera view up-left            
command = 343 -- Camera view up-right            
command = 344 -- Camera view down-left        
command = 345 -- Camera view down right    
command = 346 -- Camera pan mode toggle                
command = 347 -- Return the camera            
command = 348 -- Trains/cars toggle        
command = 349 -- Launch permission override    
command = 350 -- Release weapon        
command = 351 -- Stop release weapon
command = 352 -- Return camera base        
command = 353 -- Camera view up-left slow        
command = 354 -- Camera view up-right slow    
command = 355 -- Camera view down-left slow        
command = 356 -- Camera view down-right slow    
command = 357 -- Drop flare once            
command = 358 -- Drop chaff once            
command = 359 -- Rear view                    
command = 360 -- Scores window
command = 386 -- PlaneStabPitchBank
command = 387 -- PlaneStabHbarBank
command = 388 -- PlaneStabHorizont
command = 389 -- PlaneStabHbar
command = 390 -- PlaneStabHrad
command = 391 -- Active IR jamming on/off
command = 392 -- Laser range-finder on/off
command = 393 -- Night TV on/off(IR or LLTV) 
command = 394 -- Change radar PRF       
command = 395 -- Keep F11 camera altitude over terrain
command = 396 -- SnapView0
command = 397 -- SnapView1
command = 398 -- SnapView2
command = 399 -- SnapView3
command = 400 -- SnapView4
command = 401 -- SnapView5
command = 402 -- SnapView6
command = 403 -- SnapView7
command = 404 -- SnapView8
command = 405 -- SnapView9
command = 406 -- SnapViewStop
command = 407 -- F11 view binocular mode
command = 408 -- PlaneStabCancel
command = 409 -- ThreatWarnSoundVolumeDown
command = 410 -- ThreatWarnSoundVolumeUp
command = 411 -- F11 binocular view laser range-finder on/off
command = 412 -- PlaneIncreaseBase_Distance
command = 413 -- PlaneDecreaseBase_Distance
command = 414 -- PlaneStopBase_Distance
command = 425 -- F11 binocular view IR mode on/off
command = 426 -- F8 view player targets / all targets
command = 427 -- Plane autopilot override on
command = 428 -- Plane autopilot override off
command = 429 -- Plane route autopilot on/off
command = 430 -- Gear up
command = 431 -- Gear down

To be continued...
--]]

--    LoEnableExternalFlightModel()   call one time in start
--    LoUpdateExternalFlightModel(binary_data)   update function


--LoGetHelicopterFMData()
-- return table with fm data 
--{
--G_factor = {x,y,z }    in cockpit
--speed = {x,y,z}   center of mass ,body axis 
--acceleration= {x,y,z}   center of mass ,body axis 
--angular_speed= {x,y,z}   rad/s
--angular_acceleration= {x,y,z}   rad/s^2
--yaw    radians
--pitch    radians
--roll    radians
--}

--#ifndef  _EXTERNAL_FM_DATA_H
--#define  _EXTERNAL_FM_DATA_H

--struct external_FM_data  
--{
--    double orientation_X[3];
--    double orientation_Y[3];
--    double orientation_Z[3];
--    double pos[3];

--    //

--    double velocity[3];
--    double acceleration[3];
--    double omega[3];
--};
-- #endif  _EXTERNAL_FM_DATA_H


-- you can export render targets via shared memory interface 
-- using next functions  
--        LoSetSharedTexture(name)          -- register texture with name "name"  to export
--        LoRemoveSharedTexture(name)   -- copy texture with name "name"  to named shared memory area "name"
--        LoUpdateSharedTexture(name)    -- unregister texture
--       texture exported like Windows BMP file 
--      --------------------------------
--      |BITMAPFILEHEADER   |
--      |BITMAPINFOHEADER |
--      |bits                                  |
--      --------------------------------
--      sample textures   :  "mfd0"    -  full  SHKVAL screen
--                                      "mfd1"     -  ABRIS map screen
--                                      "mfd2"    - not used
--                                      "mfd3"    - not used
--                                      "mirrors" - mirrors

This generates the error message shown in the first post... You can see where I've tried changing port and host.

algerad3 · October 4, 2016

Ian,

Your code works for me ONLY after I have a connection on the other end of the socket.

Dcs world does not create the connection, the other script does and waits for DCS. ( See syntax on "socket test " script attached).

Think of "c" as a bool value for the connection. True if connected , false if not.

try this for your connection.

Open Dcs world, open the script in scite console and press the blue arrow/triangle(run).

pick module and enter mission.

Once mission starts you should get values displayed on scite console screen.

Your export script works as is.

socket test.lua.lua

IanH1960 · October 5, 2016

Many thanks,

I have misunderstood the nature of the socket - I thought it was opening one to export the data.

I'll take your word for it that it works (I don't have Scite installed), I suspected it was something I was doing. I'll look into it further...

algerad3 · October 5, 2016

Cool enough. If you want , I have a c++ socket to gather info if you want to try.

IanH1960 · October 5, 2016

Ahh... this appears to be TCP comms and not UDP. Not sure where I picked up the idea it was UDP.

...makes more sense now!

Badis · January 5, 2021

Le 05/10/2016 à 09:17, algerad3 a dit:

Assez cool. Si vous le souhaitez, j'ai une socket C ++ pour collecter des informations si vous voulez essayer.

Can you send me this socket C++. Please

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