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table index is nil

16 replies

table index is nil

J4x
User

Offline

19.02.11 09:54:38 pm

hi, i was making the is script and i get this error: table idex is nil.

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----------------------------------------
--- Effects script by FN_Nemesis 
--- for more info visit: Unrealsoftware.de
--- Date: 11/2/2011
----------------------------------------
WeaponTables = {
[Machinegun] = "40",
[rifles] = "30,31,32,33,38,39",
[snipers] = "34,35,36,37",
[pistols] = "1,2,3,4,5,6",
[Smg] = "20,21,22,23,24",
[Shotguns] = "10,11"
}

addhook("attack","shake")
function shake(id)
if wpn == Machinegun then
parse("shake "..id.." 8")
end
end

addhook("attack","shake2")
function shake2(id)
if wpn == rifles then
parse("shake "..id.." 3")
end
end


addhook("attack","shake3")
function shake3(id)
if wpn == snipers then
parse("shake "..id.." 5")
end
end


addhook("attack","shake4")
function shake4(id)
if wpn == pistols then
parse("shake "..id.." 2")
end
end

addhook("attack","shake5")
function shake5(id)
if wpn == Smg then
parse("shake "..id.." 6")
end
end

addhook("attack","shake6")
function shake6(id)
if wpn == Shotguns then
parse("shake "..id.." 4")
end
end

addhook("hit","shake7")
function shake7(id)
parse("shake "..id.." 10")
end

addhook("serveraction","run")
function run(id,action)
if action == 1 then
parse("speedmod "..id.." 5")
end
end

Re: table index is nil

Infinite Rain
Reviewer Off

Offline

19.02.11 10:01:21 pm

OMG I FOUND TONS OF ERRORS!
Can i remake that script?

Re: table index is nil

J4x
User

Offline

19.02.11 10:03:45 pm

well, yeah.

Re: table index is nil

Admir
User Off

Offline

19.02.11 10:07:20 pm

try these codes

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Machinegun = {}
rifles = {}
snipers = {}
pistols = {}
Smg = {}
Shotguns = {}

WeaponTables = {
[Machinegun] = "40",
[rifles] = "30,31,32,33,38,39",
[snipers] = "34,35,36,37",
[pistols] = "1,2,3,4,5,6",
[Smg] = "20,21,22,23,24",
[Shotguns] = "10,11"
}

ps. I dunno that will fix, but I didn't get any error

Re: table index is nil

Infinite Rain
Reviewer Off

Offline

19.02.11 10:12:52 pm

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machinegun={40},
rifles={30,31,32,33,38,39},
snipers={34,35,36,37},
pistols={1,2,3,4,5,6},
smg={20,21,22,23,24},
shotguns={10,11}


 addhook("attack","shake")
 function shake(id)
  if wpn==machinegun then
   parse("shake "..id.." 8")
  end
 end

 addhook("attack","shake2")
 function shake2(id)
  if wpn==rifles then
   parse("shake "..id.." 3")
  end
 end


 addhook("attack","shake3")
 function shake3(id)
  if wpn==snipers then
   parse("shake "..id.." 5")
  end
 end


 addhook("attack","shake4")
 function shake4(id)
  if wpn==pistols then
   parse("shake "..id.." 2")
  end
 end

 addhook("attack","shake5")
 function shake5(id)
  if wpn==smg then
   parse("shake "..id.." 6")
  end
 end

 addhook("attack","shake6")
 function shake6(id)
  if wpn==shotguns then
   parse("shake "..id.." 4")
  end
 end

 addhook("hit","shake7")
 function shake7(id)
  parse("shake "..id.." 10")
 end

 addhook("serveraction","run")
 function run(id,action)
  if action == 1 then
   parse("speedmod "..id.." 5")
  end
 end

Re: table index is nil

J4x
User

Offline

19.02.11 10:21:33 pm

Thanks everyone, @factice u get wron in the table part, this is the correct one

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machinegun={40},
rifles == {30,31,32,33,38,39},
snipers == {34,35,36,37},
pistols == {1,2,3,4,5,6},
smg == {20,21,22,23,24},
shotguns == {10,11}

Re: table index is nil

J4x
User

Offline

19.02.11 11:58:57 pm

I use it that way and says me: = expected near{
accept your errors dude

Re: table index is nil

Flacko
User Off

Offline

20.02.11 01:05:41 am

FN_Linkin Park has written

I use it that way and says me: = expected near{
accept your errors dude

He accepted his error so he corrected his code, also wtf is this:

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machinegun={40},
rifles == {30,31,32,33,38,39},
snipers == {34,35,36,37},
pistols == {1,2,3,4,5,6},
smg == {20,21,22,23,24},
shotguns == {10,11}

Do you know that the == operator is not the same as the = operator?
The == operator returns a boolean value if both of it's parameters are true, and the = operator assigns the second parameter's value to the first one.

Therefore, things like this are a complete fail:
smg == {20,21,22,23,24}

You only had to remove those extra colons from factis' code.

BTW, most of you are still missing something, you can't compare a number (the weapon) with a table. Make a function that find a value in a table instead... and WTF is wpn? You didn't declare that variable anywhere where I can see it...

Re: table index is nil

Robotic-Brain
User Off

Offline

20.02.11 01:21:12 am

were the hell do you init the "wpn" variable?

and (if i understand the wanted functionality right)
if wpn==snipers is wrong, too

you want a recoil effect right?

then this is the right code:

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function searchInArray(array,value)
	for k,v in pairs(array) do
		if v==value then return true end
	end
	return false
end

function shake(id)
	wpn=player(id, "weapontype")
	if wpn==searchInArray(machinegun,wpn) then
		parse("shake "..id.." 8")
	elseif -- etc....
end

don't forget addhook and factis699s array definition

not tested...

but i would preffer this:

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weaponQuakes = {}
for i=1, 6 do
	-- Pistols
	weaponQuakes[i] = 2
end

addhook("attack","shake")
function shake(id)
	if (weaponQuakes[player(id,"weapontype")] ~= nil) then
		parse("shake "..id.." "..weaponQuakes[player(id,"weapontype")])
	end
end

tested and works perfect

(of course you have to add the other weapons)

EDIT: @Falcko: I was about to say this but you were faster while I was typing

Re: table index is nil

J4x
User

Offline

20.02.11 03:16:11 am

well, thx for correcting me, i don't realize that he remove the colons, and i don't know much about lua so plz cool down guys... anyway thanks for your answers.

Ps: if this is incorrect can someone explain me why it works?

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machinegun={40},
rifles == {30,31,32,33,38,39},
snipers == {34,35,36,37},
pistols == {1,2,3,4,5,6},
smg == {20,21,22,23,24},
shotguns == {10,11}

Re: table index is nil

Robotic-Brain
User Off

Offline

20.02.11 03:45:27 am

maybe the compiler ignores the commas because the ==

Re: table index is nil

Flacko
User Off

Offline

20.02.11 03:59:15 am

The code you posted is equivalent to this:

machinegun = {40},false,false,false,false,false

This is because lua allows for multiple assignments in a single statement like this:

one, two, three, four = 1,2,3,4

Or like this, in multiple lines:

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one, two,three,four = 1,
2,
3,
4

The reason of all those "false" is because like I said, the == operator returns a boolean value that is true if both of it's operands are equal.
Since rifles (for example) is a nil variable because it's not defined yet, the nil == {30,31,32,33,38,39} comparison returns false.
Moreover, all those false values are not stored anywhere so you can say that they are discarded. The only assignment that actually took place was machinegun = {40}.

edited 1×, last 20.02.11 04:01:36 am

Re: table index is nil

J4x
User

Offline

20.02.11 04:00:53 am

Thanks for your answer.

Re: table index is nil

Lee
Moderator Off

Offline

20.02.11 04:04:56 am

It's not syntactically incorrect, it's just meaningless as you're evaluating multiple boolean expressions after the assignment. Also, as Lua compares references by unique identification (either hashvalue or memory address), table == {...} will always evaluate to false.