Attempt to compare number with nil

[Mossy]

Hi I'm learning scripting very slowly and a resource I'm using has an error (which is in the title).

function KeyBind() -- bind the key for all players. 
if get("g_vote") == 'true' then 
local players = getElementsByType("player") 
local pcount = getPlayerCount() 
triggerClientEvent("onGMStop", getRootElement())     
    if string.find(getMapName(), get('filterword'), 1, true) then 
    outputDebugString("DD Detected, Halting the ghostmode voting.") 
    else 
  
    executeSQLQuery("DELETE FROM GmBlockList") 
    VoteCount = 0 
  
    for k,v in ipairs (players) do  
    bindKey(v,"g","down",addVote) 
    setElementData( v, "overrideCollide.uniqueblah", nil, false ) 
    end 
  
    outputChatBox("Ghostmode Disabled by Server",getRootElement(),255,0,0) 
    StartElement() 
     
end 
end 
end 
addEventHandler("onMapStarting",getRootElement(),KeyBind) 
  
function KeyUnBind(newStateName,oldStateName) 
if get("g_vote") == 'true' then 
    if newStateName == "Running" then 
    local players = getElementsByType("player") 
            for k,v in ipairs (players) do  
            unbindKey(v,"g","down",addVote) 
            end 
    executeSQLQuery("DELETE FROM GmBlockList") 
    triggerClientEvent("onGMStop", getRootElement())     
    if VoteCount >= ReqPlayers() then 
    outputChatBox("*Ghostmode: Voting for ghostmode passed!",root,162,82,201)    
        for k,thePlayer in ipairs(getElementsByType('player')) do 
        setElementData( thePlayer, "overrideCollide.uniqueblah", 0, true )       
        end     
    else 
        --[[for k,thePlayer in ipairs(getElementsByType('player')) do 
        setElementData( thePlayer, "overrideCollide.uniqueblah", 255, false )        
        end]]-- 
    outputChatBox("*Ghostmode: Voting for ghostmode failed!",root,162,82,201) 
    end 
    end 
end 
end 
addEvent("onRaceStateChanging") 
addEventHandler("onRaceStateChanging",getRootElement(),KeyUnBind) 
  
function addVote(keyPresser) 
local serial = getPlayerSerial(keyPresser) 
local serialcheck = executeSQLSelect ( "GmBlockList", "serial","serial = '" .. serial .. "'") 
if ( type( serialcheck ) == "table" and #serialcheck == 0 ) or not serialcheck then  
executeSQLInsert ( "GmBlockList", "'"..serial.."'") 
VoteCount = VoteCount + 1 
triggerClientEvent(getRootElement(),"UpdateCount", getRootElement(),VoteCount,ReqPlayers())  
else 
outputChatBox("You have already voted for Ghostmode!",keyPresser,255,0,0) 
end 
end 
  
function ReqPlayers() 
local pcount = getPlayerCount()  
     
    if pcount == 1 then 
    reqPlayers = 1 
  
    elseif pcount > 1 and pcount < 4 then 
    reqPlayers = 2 
  
    elseif pcount > 3 and pcount < 7 then 
    reqPlayers = 3 
  
    elseif pcount > 6 and pcount < 10 then 
    reqPlayers = 5 
  
    elseif pcount > 9 and pcount < 15 then 
    reqPlayers =  7 
  
    elseif pcount > 14 and pcount < 21 then 
    reqPlayers =  12 
  
    elseif pcount > 20 and pcount < 26 then 
    reqPlayers =  17 
  
    elseif pcount > 25 then 
    reqPlayers =  21 
    end 
return reqPlayers    
end 
  
  
function StartElement(vcount,pcount) 
vcount = 0 
pcount = ReqPlayers() 
triggerClientEvent("UpdateCount", getRootElement(),vcount,pcount)    
triggerClientEvent("onGMStart", getRootElement())    
end 

Also what I noticed is that when I play a DD map the ghostmode text isn't there, yet every time in the Chat it says "Voting for ghostmode passed!"

Basically what I'm asking is if either this problem is harmless or if it's a bug and a way to fix it. If you can't help me for any reason I understand. Thanks in advance guys.

[Jaysds1]

try this:

local VoteCount --define this as a global 
  
  
function addVote(keyPresser) 
    local serial = getPlayerSerial(keyPresser) 
    local serialcheck = executeSQLSelect ( "GmBlockList", "serial","serial = '" .. serial .. "'") 
    if (type( serialcheck ) == "table" and #serialcheck == 0 ) or not serialcheck then 
        executeSQLInsert ( "GmBlockList", "'"..serial.."'") 
        VoteCount = VoteCount + 1 
        triggerClientEvent("UpdateCount",root,VoteCount,ReqPlayers())  
    else 
        outputChatBox("You have already voted for Ghostmode!",keyPresser,255,0,0) 
    end 
end 
  
function ReqPlayers() 
    local reqPeds = 0 --define reqPeds just incase there's no players 
    local pcount = getPlayerCount() 
  
    if pcount == 1 then 
        reqPeds = 1 
    elseif pcount > 1 and pcount < 4 then 
        reqPeds = 2 
    elseif pcount > 3 and pcount < 7 then 
        reqPeds = 3 
    elseif pcount > 6 and pcount < 10 then 
        reqPeds = 5 
    elseif pcount > 9 and pcount < 15 then 
        reqPeds =  7 
    elseif pcount > 14 and pcount < 21 then 
        reqPeds =  12 
    elseif pcount > 20 and pcount < 26 then 
        reqPeds =  17 
    elseif pcount > 25 then 
        reqPeds =  21 
    end 
    return reqPeds   
end 
  
function StartElement(vcount,pcount) 
    if not vcount then --check if vcount is passed 
        vcount = 0 --if it isn't, set it to 0 
    end 
    if not pcount then 
        pcount = ReqPlayers() 
    end 
    triggerClientEvent("UpdateCount",root,vcount,pcount)    
    triggerClientEvent("onGMStart",root)   
end 
  
addEventHandler("onMapStarting",root,function() -- bind the key for all players. 
    if get("g_vote") == 'true' then 
        local pcount = getPlayerCount() 
        triggerClientEvent("onGMStop",root) 
        if string.find(getMapName(), get('filterword'), 1, true) then 
            outputDebugString("DD Detected, Halting the ghostmode voting.") 
            return 
        end 
        executeSQLQuery("DELETE FROM GmBlockList") 
        VoteCount = 0 
        for _,v in ipairs(getElementsByType("player"))do 
            bindKey(v,"g","down",addVote) 
            setElementData( v, "overrideCollide.uniqueblah", nil, false ) 
        end 
        outputChatBox("Ghostmode Disabled by Server",getRootElement(),255,0,0) 
        StartElement() 
    end 
end) 
  
addEvent("onRaceStateChanging") 
addEventHandler("onRaceStateChanging",root,function(newStateName) 
    if get("g_vote") == 'true' then 
        if newStateName == "Running" then 
            for _,v in ipairs(getElementsByType("player"))do 
                unbindKey(v,"g","down",addVote) 
            end 
            executeSQLQuery("DELETE FROM GmBlockList") 
            triggerClientEvent("onGMStop",root)    
            if VoteCount >= ReqPlayers() then 
                outputChatBox("*Ghostmode: Voting for ghostmode passed!",root,162,82,201) 
                for _,v in ipairs(getElementsByType('player')) do 
                    setElementData( v, "overrideCollide.uniqueblah", 0, true ) 
                end     
            else 
                --[[for k,thePlayer in ipairs(getElementsByType('player')) do 
                    setElementData( thePlayer, "overrideCollide.uniqueblah", 255, false )       
                end]]-- 
                outputChatBox("*Ghostmode: Voting for ghostmode failed!",root,162,82,201) 
            end 
        end 
    end 
end) 

Please read comments

[Mossy]

Thanks for the script! But I still get the "voting for ghostmode passed" message in the chat

And I'm not sure if ghostmode is even on cause no one else is in the server at the moment.

Is there maybe any way to automatically turn it off when the demolitionderby.lua script is in play?

[Jaysds1]

ya,there's a way of turning it off automatically,

I'll post the code here again.

local VoteCount --define this as a global 
  
  
function addVote(keyPresser) 
    local serial = getPlayerSerial(keyPresser) 
    local serialcheck = executeSQLSelect ( "GmBlockList", "serial","serial = '" .. serial .. "'") 
    if (type( serialcheck ) == "table" and #serialcheck == 0 ) or not serialcheck then 
        executeSQLInsert ( "GmBlockList", "'"..serial.."'") 
        VoteCount = VoteCount + 1 
        triggerClientEvent("UpdateCount",root,VoteCount,ReqPlayers()) 
    else 
        outputChatBox("You have already voted for Ghostmode!",keyPresser,255,0,0) 
    end 
end 
  
function ReqPlayers() 
    local reqPeds = 0 --define reqPeds just incase there's no players 
    local pcount = getPlayerCount() 
  
    if pcount == 1 then 
        reqPeds = 1 
    elseif pcount > 1 and pcount < 4 then 
        reqPeds = 2 
    elseif pcount > 3 and pcount < 7 then 
        reqPeds = 3 
    elseif pcount > 6 and pcount < 10 then 
        reqPeds = 5 
    elseif pcount > 9 and pcount < 15 then 
        reqPeds =  7 
    elseif pcount > 14 and pcount < 21 then 
        reqPeds =  12 
    elseif pcount > 20 and pcount < 26 then 
        reqPeds =  17 
    elseif pcount > 25 then 
        reqPeds =  21 
    end 
    return reqPeds   
end 
  
function StartElement(vcount,pcount) 
    if not vcount then --check if vcount is passed 
        vcount = 0 --if it isn't, set it to 0 
    end 
    if not pcount then 
        pcount = ReqPlayers() 
    end 
    triggerClientEvent("UpdateCount",root,vcount,pcount)   
    triggerClientEvent("onGMStart",root)   
end 
  
addEventHandler("onMapStarting",root,function() -- bind the key for all players. 
    if get("g_vote") == 'true' then 
        if get("ghostmode") == 'true' then 
            set("race.ghostmode","false") 
        end 
        local pcount = getPlayerCount() 
        triggerClientEvent("onGMStop",root) 
        if string.find(getMapName(), get('filterword'), 1, true) then 
            outputDebugString("DD Detected, Halting the ghostmode voting.") 
            return 
        end 
        executeSQLQuery("DELETE FROM GmBlockList") 
        VoteCount = 0 
        for _,v in ipairs(getElementsByType("player"))do 
            bindKey(v,"g","down",addVote) 
            setElementData( v, "overrideCollide.uniqueblah", nil, false ) 
        end 
        outputChatBox("Ghostmode Disabled by Server",getRootElement(),255,0,0) 
        StartElement() 
    end 
end) 
  
addEvent("onRaceStateChanging") 
addEventHandler("onRaceStateChanging",root,function(newStateName) 
    if get("g_vote") == 'true' then 
        if newStateName == "Running" then 
            for _,v in ipairs(getElementsByType("player"))do 
                unbindKey(v,"g","down",addVote) 
            end 
            executeSQLQuery("DELETE FROM GmBlockList") 
            triggerClientEvent("onGMStop",root)   
            if VoteCount >= ReqPlayers() then 
                if get("ghostmode") == 'false' then 
                    set("ghostmode","true") 
                end 
                outputChatBox("*Ghostmode: Voting for ghostmode passed!",root,162,82,201) 
                for _,v in ipairs(getElementsByType('player')) do 
                    setElementData( v, "overrideCollide.uniqueblah", 0, true ) 
                end     
            else 
                --[[for k,thePlayer in ipairs(getElementsByType('player')) do 
                    setElementData( thePlayer, "overrideCollide.uniqueblah", 255, false )       
                end]]-- 
                outputChatBox("*Ghostmode: Voting for ghostmode failed!",root,162,82,201) 
            end 
        end 
    end 
end) 

Edited September 23, 2012 by Guest

[Mossy]

Now for some reason even if it doesn't show the poll for ghostmode, if I press G continuously, in says "You have already voted for ghostmode!" and ghostmode enables on a DD map.

Hopefully this is just a chat bug and ghostmode isn't enabled after all. I'll let you know when someone else joins the server.

Edit: I didn't even press anything and the ghostmode enabled on itself.