Gather all units of single type in a list?

Gather all units of single type in a list? (Full Version)

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aethertap -> Gather all units of single type in a list? (12/6/2020 3:59:09 AM)
Hi all, Just getting started with Lua scripting and CMO in general. I have experience with Python. I'm wondering if there's a function or straightforward 'for' loop that will access all units on a side of type 'Surface Ship.' I have a scenario where I've placed a ton of random commercial merchant traffic and I'm looking to go through them and assign home bases and/or random headings. Obviously, the intent is to litter the area with random sea traffic, but I'm not sure that most straightforward way of automating this. Thanks!

boogabooga -> RE: Gather all units of single type in a list? (12/6/2020 11:02:12 AM)
Yes, that's difficult because generally you need to know a unit's name or guid ahead of time in order to GetUnit. What I do, following others, is to create units directly in LUA and list them in a table as they are created in order to keep track of them. EX: quote: function AddFingerFour(callsign,side,dbid,loadout,latitudeIn,longitudeIn,heading,altitude,proficiency,groupName) --local circle = World_GetCircleFromPoint({latitude=latitude,longitude=longitude,radius=0.5,numpoints = 72}) local addedAircraftTable = {} blah blah blah local unit = ScenEdit_AddUnit({type='Aircraft',side=side,dbid=dbid,name=callsign..' #'..i,loadoutid=loadout,latitude=position.latitude,longitude=position.longitude,heading=heading,altitude=altitude,proficiency=proficiency}); unit.group=groupName table.insert(addedAircraftTable,unit) return addedAircraftTable end Then the loop to access each unit: quote: for key, value in pairs(addedAircraftTable) do blah blah blah

KnightHawk75 -> RE: Gather all units of single type in a list? (12/6/2020 1:24:18 PM)

quote:

I'm wondering if there's a function or straightforward 'for' loop that will access all units on a side of type 'Surface Ship.' ...

---

Yes. Get the side wrapper, grab the unitlist by using unitsBy('Ship') method;

local s = VP_GetSide({side="Red"});
local tbl = s:unitsBy('Ship'); --All surface ships
--local tbl2 = s:unitsBy('Ship','2002'); --example to further constrained to Surface Combatant
--local tbl3 = s:unitsBy('Ship',nil,'2008'); --example to constrain to CVN sub-type's only
local u; --unit wrapper
local retval = false; --return value from pcall
for k,v in pairs(tbl) do
  retval,u = pcall(ScenEdit_GetUnit,{guid=v.guid}); --suppress errors.
  if (retval == true) and u ~=nil then
     --Do Stuff You want with each unit.
     print(string.format("Unitname: %s  Lat: %s Lon: %s",tostring(u.name),tostring(u.latitude),tostring(u.longitude)));
     --
  else
    print('Could not obtain unit. err: ' .. tostring(u)); --u contains error msg if retval is false.
  end
  retval,u = false,nil;
end

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