attempt to index local 'ply' (a nil value)

[Sergey_26rus]

I wrote a simple script that checks the chat for words from the table. In this case, to receive health.
But...

[ERROR] lua/autorun/checkchat.lua:13: attempt to index local 'ply' (a nil value)
  1. func - lua/autorun/checkchat.lua:13
   2. AddPhrases - lua/autorun/checkchat.lua:3
    3. v - lua/autorun/checkchat.lua:20
     4. unknown - lua/includes/modules/hook.lua:84

Any ideas how to fix this?

Here is the script:

function AddPhrases(args, phrases, func)
	if table.concat(args, " ", 1, #args) == table.concat(phrases, " ", 1, #phrases) then 
		func()
	end
end



HealthPhrases = {"give", "health"}

function GiveHealth(ply)
	local hp = math.random(20, 50)
	ply:SetHealth(ply:Health() + hp)
	ply:ChatPrint("Here are your ".. hp .." HP, ".. ply:Name() ..".")
end

hook.Add("PlayerSay", "ChatCheck", function(ply, said)
	args = string.Split(string.lower(said), " ")
	
	AddPhrases(args, HealthPhrases, GiveHealth)
end)

[ILiketrainz]

is function AddPhrases(args, phrases, func) line 1?

[MysteryPancake]

I changed your script a bit to something less confusing:

local phrases = {}

local function AddPhrase( str, func )
	if !isstring( str ) then return end
	if !isfunction( func ) then return end
	phrases[ string.lower( str ) ] = func
end

hook.Add( "PlayerSay", "ChatCheck", function( ply, text )
	local func = phrases[ string.lower( text ) ]
	if isfunction( func ) then
		func( ply )
		return ""
	end
end )

AddPhrase( "give health", function( ply )
	local hp = math.random( 20, 50 )
	ply:SetHealth( ply:Health() + hp )
	ply:ChatPrint( "Here's " .. hp .. " HP, " .. ply:Name() .. "." )
end )

This should work if you type 'give health' in the chat.

[editline]3rd July 2017[/editline]

[URL="https://facepunch.com/showthread.php?t=1209255&p=37490686&viewfull=1#post37490686"]Actually, this one is better[/URL]