Attacker Information

[Von66341]

Hey everyone!

I have this portion of the code that write who is being attack in the game.

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function widget:UnitDamaged(unitID, unitDefID, unitTeam, damage, paralyzer)
	local txt = "TakingFire unitTeam ".. unitTeam.. " unit".. unitDefID.. " id"..unitID
	write(txt)
end

Anyone knows if I could find out through this widget which unit is attacking my unit?

Desire outcome will be Unit 123 from Team 0 is attacking Unit 456 from Team 1 at x y z location.
Instead of the current> TakingFire unitTeam 0 unit 123.

[knorke]

you are missing half the parameters:
UnitDamaged() --> "unitID, unitDefID, unitTeam, damage, paralyzer, weaponID, attackerID, attackerDefID, attackerTeam"

[zwzsg]

What knorke said. However.... maybe that's gadget only!

As using widgets to know who's attacking through the fog of war could theorically be considered some sort of cheating, it might have been disabled in widgets. Try and see!

[Von66341]

Thanks knorke and zwzsg!

Yup, I confirm it only works in gadget!

I got this portion of the code in a gadget:

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function gadget:UnitDamaged(unitID,unitDefID,unitTeam,damage,paralyzer,weaponID,attackerID,attattackerDefID,attackerTeam)
local x,y,z=Spring.GetUnitPostion(unitID) 
local txt = "Unit "..unitID.." from Team"..unitTeam.." is being attacked by Unit "..attackerID.." from Team "..attackerTeam.."at"..x..y..z

Spring.SendLuaUIMsg(txt)
end

Thanks! =)
Which sends the information to a widget to write it in a txt.
The portion that contains of the widget that receive the information:

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function widget:RecLuaMsg(txt,playerID) 
write(txt) 
end

My questions here:
1. The information is successfully written in a txt file.
But I randomly I will have this error message:

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LuaRules::RunCallIn:error=2, unitDamged, [string "LuaRules/Gadgets/logger.lua"]:16: attemot to concatenate local 'attackerTeam'(a nil value)

How should I ensure this error is prevented?

[FLOZi]

you can nil-check the attackerTeam (it can be nil if e.g. a unit is hit by falling debris) or you could do something like

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" from Team ".. (attackerTeam or "no team") .."at".

but that's a bit ugly.

i'd probably just do:

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local txt = "Unit "..unitID.." from Team"..unitTeam.." is being attacked by Unit "..attackerID

if attackerTeam then
  txt .. " from Team "..attackerTeam
end
txt .."at"..x..y..z

of course it might be very sensible to nil-check other arguments too!

[Von66341]

It works like magic! Thanks lot! =)