[Help] Scripting error.

mat_290 · November 1, 2012

The way this code works is when you hit Tab it shows the scoreboard, Well whenever I hit Tab it shows that error. What do I need to do to fix this?

The error is on line 64.

Error

"attempt to index field '?' (a nil value)"

Error Code

if ( array[j][1] < smallest )

  
--------- [ Element Data returns ] --------- 
local function getData( theElement, key ) 
    local key = tostring(key) 
    if isElement(theElement) and (key) then 
         
        return exports['[ars]anticheat-system']:c_callData( theElement, tostring(key) ) 
    else 
        return false 
    end 
end  
  
-------------- [ Scoreboard ] --------------- 
local screenX, screenY = guiGetScreenSize() 
  
local width, height = 300, 420 
local x = (screenX/2) - (width/2) 
local y = (screenY/2) - (height/2) 
  
local logowidth, logoheight = 275, 275 
local logox = (x/2) - (logowidth/2) 
local logoy = (y/2) - (logoheight/2) 
  
local isEventHandled = false 
local page = 1 
  
local a = { "Z", "W", "Y", "G", "H", "L", "P", "A", "B" } 
function getPlayerIDTable( ) 
     
    local array = { } 
--[[     
    for key, thePlayer in ipairs ( getElementsByType("player") ) do 
         
        local playerID = tonumber( getData( thePlayer, "playerid") ) 
        if ( playerID ) then 
             
            array[#array + 1] = { playerID, thePlayer } 
        end 
    end 
    ]]-- 
     
    for i = 1, 9 do 
        local j = math.random( 1, 9 ) 
        if ( array[j] == nil )  
        then     
            array[i] = { j, a[ math.random( 1, 9 ) ] } 
        end  
    end  
        return array 
end 
  
local players = { } 
function assemblePlayersByID( ) 
     
    local array = getPlayerIDTable( ) 
    local smallest, index, tempo 
     
    for i = 1, #array do 
         
        smallest = array[i][1] 
        index = i 
         
        for j = i + 1, #array do 
            if ( array[j][1] < smallest )  
            then 
                smallest = array[j][1] 
                index = j    
            end 
        end 
         
        -- flip arrays 
        tempo = array[i] 
        array[i] = array[index] 
        array[index] = tempo 
    end 
     
    -- Sort 
    for key, value in ipairs ( array ) do 
         
        players[value[1]] = value[2] 
    end  
end  
     
function removePlayerFromList( ) 
    local playerID = tonumber( getData(source, "playerid") ) 
    players[playerID] = nil 
end 
addEventHandler("onClientPlayerQuit", getRootElement(), removePlayerFromList) 
     
function renderPlayerList( ) 
    dxDrawRectangle(x, y, width, height, tocolor(0, 0, 0, 200)) 
     
    limit = 0 
    for k, v in pairs (players) do 
        limit = limit + 1 
    end 
     
    local clientName = getPlayerName(getLocalPlayer()):gsub("_", " ") 
     
    dxDrawText("Bone County Roleplay 1.0", x + 2, y + 403, screenX, screenY, tocolor(255, 255, 255, 150), 1, "default-bold") 
    dxDrawText("Players: (".. limit .."/50)", x + 208, y + 403, screenX, screenY, tocolor(255, 255, 255, 150), 1, "default-bold") 
     
    dxDrawText("ID", x + 15, y + 13, screenX, screenY, tocolor(255, 255, 255, 150), 1, "default-bold") 
    dxDrawText("Player", x + 60, y + 13, screenX, screenY, tocolor(255, 255, 255, 150), 1, "default-bold") 
    dxDrawText("Ping", x + 250, y + 13, screenX, screenY, tocolor(255, 255, 255, 150), 1, "default-bold") 
     
    dxDrawLine(x, y + 30, x + 299, y + 30, tocolor(255, 255, 255, 150), 1) 
     
    local yTxt = (screenY/2) - (height/2) + 35 
     
    for k, v in ipairs (players) do 
         
        if isElement(v) then 
             
            local name = tostring( getPlayerName(v):gsub("_", " ") ) 
            local id = tostring( getData(v, "playerid") ) 
            local ping = tostring( getPlayerPing(v) ) 
            local r, g, b = getPlayerNametagColor(v) 
             
            if ( page == 1 ) then 
                 
                if k <= 24 then 
             
                    if name == clientName then 
                        dxDrawRectangle(x, yTxt, 300, 15, tocolor(255, 255, 255, 40)) 
                    end  
                         
                    dxDrawText(tostring(id), x + 15, yTxt, screenX, screenY, tocolor(r, g, b, 255), 1, "default-bold") 
                    dxDrawText(tostring(name), x + 60, yTxt, screenX, screenY, tocolor(r, g, b, 255), 1, "default-bold") 
                    dxDrawText(tostring(ping), x + 250, yTxt, screenX, screenY, tocolor(r, g, b, 255), 1, "default-bold") 
             
                    yTxt = yTxt + 15 
                end  
            elseif ( page == 2 ) then    
             
                if k >= 12 and k < 36 then 
                 
                     
                    if name == clientName then 
                        dxDrawRectangle(x, yTxt, 300, 15, tocolor(255, 255, 255, 40)) 
                    end  
                     
                    dxDrawText(tostring(id), x + 15, yTxt, screenX, screenY, tocolor(r, g, b, 255), 1, "default-bold") 
                    dxDrawText(tostring(name), x + 60, yTxt, screenX, screenY, tocolor(r, g, b, 255), 1, "default-bold") 
                    dxDrawText(tostring(ping), x + 250, yTxt, screenX, screenY, tocolor(r, g, b, 255), 1, "default-bold") 
                         
                    yTxt = yTxt + 15     
                end  
            elseif ( page == 3 ) then        
             
                if k >= 24 and k < 48 then 
                 
                     
                    if name == clientName then 
                        dxDrawRectangle(x, yTxt, 300, 15, tocolor(255, 255, 255, 40)) 
                    end  
                     
                    dxDrawText(tostring(id), x + 15, yTxt, screenX, screenY, tocolor(r, g, b, 255), 1, "default-bold") 
                    dxDrawText(tostring(name), x + 60, yTxt, screenX, screenY, tocolor(r, g, b, 255), 1, "default-bold") 
                    dxDrawText(tostring(ping), x + 250, yTxt, screenX, screenY, tocolor(r, g, b, 255), 1, "default-bold") 
                         
                    yTxt = yTxt + 15     
                end  
            elseif ( page == 4 ) then        
                 
                if k >= 36 and k < 60 then 
                 
                     
                    if name == clientName then 
                        dxDrawRectangle(x, yTxt, 300, 15, tocolor(255, 255, 255, 40)) 
                    end  
                     
                    dxDrawText(tostring(id), x + 15, yTxt, screenX, screenY, tocolor(r, g, b, 255), 1, "default-bold") 
                    dxDrawText(tostring(name), x + 60, yTxt, screenX, screenY, tocolor(r, g, b, 255), 1, "default-bold") 
                    dxDrawText(tostring(ping), x + 250, yTxt, screenX, screenY, tocolor(r, g, b, 255), 1, "default-bold") 
                         
                    yTxt = yTxt + 15     
                end  
            elseif ( page == 5 ) then    
                 
                if k >= 48 and k < 72 then 
                     
                     
                    if name == clientName then 
                        dxDrawRectangle(x, yTxt, 300, 15, tocolor(255, 255, 255, 40)) 
                    end  
                     
                    dxDrawText(tostring(id), x + 15, yTxt, screenX, screenY, tocolor(r, g, b, 255), 1, "default-bold") 
                    dxDrawText(tostring(name), x + 60, yTxt, screenX, screenY, tocolor(r, g, b, 255), 1, "default-bold") 
                    dxDrawText(tostring(ping), x + 250, yTxt, screenX, screenY, tocolor(r, g, b, 255), 1, "default-bold") 
                         
                    yTxt = yTxt + 15     
                end  
            elseif ( page == 6 ) then    
                 
                if id >= 60 and id < 84 then 
                     
                     
                    if name == clientName then 
                        dxDrawRectangle(x, yTxt, 300, 15, tocolor(255, 255, 255, 40)) 
                    end  
                     
                    dxDrawText(tostring(id), x + 15, yTxt, screenX, screenY, tocolor(r, g, b, 255), 1, "default-bold") 
                    dxDrawText(tostring(name), x + 60, yTxt, screenX, screenY, tocolor(r, g, b, 255), 1, "default-bold") 
                    dxDrawText(tostring(ping), x + 250, yTxt, screenX, screenY, tocolor(r, g, b, 255), 1, "default-bold") 
                         
                    yTxt = yTxt + 15 
                end  
            elseif ( page == 7 ) then    
                 
                if id >= 72 and id < 96 then 
                     
                     
                    if name == clientName then 
                        dxDrawRectangle(x, yTxt, 300, 15, tocolor(255, 255, 255, 40)) 
                    end  
                     
                    dxDrawText(tostring(id), x + 15, yTxt, screenX, screenY, tocolor(r, g, b, 255), 1, "default-bold") 
                    dxDrawText(tostring(name), x + 60, yTxt, screenX, screenY, tocolor(r, g, b, 255), 1, "default-bold") 
                    dxDrawText(tostring(ping), x + 250, yTxt, screenX, screenY, tocolor(r, g, b, 255), 1, "default-bold") 
                         
                    yTxt = yTxt + 15 
                end  
            elseif ( page == 8 ) then    
                 
                if id >= 84 and id < 108 then 
                     
                     
                    if name == clientName then 
                        dxDrawRectangle(x, yTxt, 300, 15, tocolor(255, 255, 255, 40)) 
                    end  
                     
                    dxDrawText(tostring(id), x + 15, yTxt, screenX, screenY, tocolor(r, g, b, 255), 1, "default-bold") 
                    dxDrawText(tostring(name), x + 60, yTxt, screenX, screenY, tocolor(r, g, b, 255), 1, "default-bold") 
                    dxDrawText(tostring(ping), x + 250, yTxt, screenX, screenY, tocolor(r, g, b, 255), 1, "default-bold") 
                         
                    yTxt = yTxt + 15 
                end  
            elseif ( page == 9 ) then    
                 
                if id >= 96 and id < 120 then 
                     
                     
                    if name == clientName then 
                        dxDrawRectangle(x, yTxt, 300, 15, tocolor(255, 255, 255, 40)) 
                    end  
                     
                    dxDrawText(tostring(id), x + 15, yTxt, screenX, screenY, tocolor(r, g, b, 255), 1, "default-bold") 
                    dxDrawText(tostring(name), x + 60, yTxt, screenX, screenY, tocolor(r, g, b, 255), 1, "default-bold") 
                    dxDrawText(tostring(ping), x + 250, yTxt, screenX, screenY, tocolor(r, g, b, 255), 1, "default-bold") 
                         
                    yTxt = yTxt + 15

Scooby · November 2, 2012

at a glance, shouldnt line 44 be: if ( array == nil ) ?

mat_290 · November 2, 2012

Well If I did that there is no error code but then pushing Tab doesn't bring up the scoreboard.

Scooby · November 2, 2012

maybe just add some outputs to debug to see whats happening...

at least u should be able to find where its getting to and then fix whats wrong.

myonlake · November 2, 2012

if (array[j] == nil) then

I don't think "then" and "if" can be on separate lines. You need to have it all in one line. Use this.

mat_290 · November 2, 2012

Which I fixed but I still get the same error code.

Anderl · November 2, 2012

if (array[j] == nil) then 
I don't think "then" and "if" can be on separate lines. You need to have it all in one line. Use this.

No, you don't need.

You can do this:

if(  
  ( condition ) and 
  ( condition ) or 
  ( condition ) 
) 
then 
  
-- 
  
if 
  ( condition ) 
then 
  
--  
  
if  
  ( condition ) and 
  ( condition ) 
then

mat_290 · November 2, 2012

So then I can do it like that ok. Does anyone know what is causing this error code?

Scooby · November 3, 2012

if u made the change like i said, then it would have fixed the error.

The reason ur scoreboard isnt showing is coz u need to add 'return true' at the bottom of that function

because in the function 'drawPlayerList()' which is called when u press 'tab', u do:

            local done = assemblePlayersByID( ) 
            if ( done ) then

so its waiting for the variable 'done' to be true.

mat_290 · November 3, 2012

Thank you that works. But then I get a stack overflow error....

Anderl · November 3, 2012

This means some function is calling itself much times, causing a stack overflow ( stack is the part of the memory that is allocated ) - You can see here what it is: http://en.wikipedia.org/wiki/Stack_overflow

You might be able to check what is wrong on your code with what I said. I can't check it now, sorry.

Scooby · November 3, 2012

i tested the script and got no errors... it worked fine, although i had to blank out the exports line.

did u change anything else?

mat_290 · November 3, 2012

I just change line 44 to if ( array == nil )

and then i added the return true statement to the bottom of the function. I just get the stack overflow on line 43.

Scooby · November 4, 2012

'return true' should be at the bottom of function assemblePlayersByID()

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