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Lua Simple lever script, error

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Wiw3K

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Hi, i made simple lever script that you switch lever -> stairs dis/appear. It works but gives errors in console o_O? Why there are errors ...

Distro: 0.3.6 build 3293

Error:
Code: 
[Error - Action Interface]
data/actions/scripts/quests/bkquestlever.lua:onUse
Description:
attempt to index a nil value
stack traceback:
        [C]: in function 'getTileItemById'
        data/actions/scripts/quests/bkquestlever.lua:20: in function <data/actio
ns/scripts/quests/bkquestlever.lua:6>

[Error - Action Interface]
data/actions/scripts/quests/bkquestlever.lua:onUse
Description:
attempt to index a nil value
stack traceback:
        [C]: in function 'getTileItemById'
        data/actions/scripts/quests/bkquestlever.lua:14: in function <data/actio
ns/scripts/quests/bkquestlever.lua:6>

Script:
Code: 
local function doorEnter(cid, item, toPosition)
    doTransformItem(item.uid, item.itemid + 1)
    doTeleportThing(cid, toPosition)
end

function onUse(cid, item, frompos, itemEx, topos) 
    local pos = {x = 209, y = 483, z = 5}
    local leverpos = {x = 206, y = 485, z = 5}
    local stairs = 5260
 
    if (item.itemid == 1945) then
        doCreateItem(stairs, 1, pos)
        doPlayerSendTextMessage(cid, MESSAGE_INFO_DESCR, "Stairs appeared.") 
        doTransformItem(getTileItemById(leverPos, 1945).uid, 1946)
        return true
    end
    if(item.itemid == 1946) then
        doRemoveItem(getTileItemById(pos,stairs).uid)
        doPlayerSendTextMessage(cid, MESSAGE_INFO_DESCR, "Stairs disappeared.")
        doTransformItem(getTileItemById(leverPos, 1946).uid, 1945)
        return true
    end
    return true
end
 
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Code: 
local function doorEnter(cid, item, toPosition)
    doTransformItem(item.uid, item.itemid + 1)
    doTeleportThing(cid, toPosition)
end

function onUse(cid, item, frompos, itemEx, topos)
    local pos = {x = 209, y = 483, z = 5, stackpos = 253}
    local leverpos = {x = 206, y = 485, z = 5, stackpos = 253}
    local stairs = 5260
    if (item.itemid == 1945) then
        doCreateItem(stairs, 1, pos)
        doPlayerSendTextMessage(cid, MESSAGE_INFO_DESCR, "Stairs appeared.")
        doTransformItem(getTileItemById(leverPos, 1945).uid, 1946)
        return true
    end
    if(item.itemid == 1946) then
        doRemoveItem(getTileItemById(pos,stairs).uid)
        doPlayerSendTextMessage(cid, MESSAGE_INFO_DESCR, "Stairs disappeared.")
        doTransformItem(getTileItemById(leverPos, 1946).uid, 1945)
        return true
    end
    return true
end
 
Upvote 0 Downvote
kkk111 said:
Code: 
local function doorEnter(cid, item, toPosition)
    doTransformItem(item.uid, item.itemid + 1)
    doTeleportThing(cid, toPosition)
end

function onUse(cid, item, frompos, itemEx, topos)
    local pos = {x = 209, y = 483, z = 5, stackpos = 253}
    local leverpos = {x = 206, y = 485, z = 5, stackpos = 253}
    local stairs = 5260
    if (item.itemid == 1945) then
        doCreateItem(stairs, 1, pos)
        doPlayerSendTextMessage(cid, MESSAGE_INFO_DESCR, "Stairs appeared.")
        doTransformItem(getTileItemById(leverPos, 1945).uid, 1946)
        return true
    end
    if(item.itemid == 1946) then
        doRemoveItem(getTileItemById(pos,stairs).uid)
        doPlayerSendTextMessage(cid, MESSAGE_INFO_DESCR, "Stairs disappeared.")
        doTransformItem(getTileItemById(leverPos, 1946).uid, 1945)
        return true
    end
    return true
end
Click to expand...
Still the same errors.
Code: 
[Error - Action Interface]
data/actions/scripts/quests/bkquestlever.lua:onUse
Description:
attempt to index a nil value
stack traceback:
        [C]: in function 'getTileItemById'
        data/actions/scripts/quests/bkquestlever.lua:13: in function <data/actio
ns/scripts/quests/bkquestlever.lua:6>

[Error - Action Interface]
data/actions/scripts/quests/bkquestlever.lua:onUse
Description:
attempt to index a nil value
stack traceback:
        [C]: in function 'getTileItemById'
        data/actions/scripts/quests/bkquestlever.lua:19: in function <data/actio
ns/scripts/quests/bkquestlever.lua:6>
 
Upvote 0 Downvote
Code: 
function onUse(cid, item, fromPosition, itemEx, toPosition)

    local leverpos1 = {x=3554, y=3319, z=8, stackpos=1}
    local lever1 = getThingfromPos(leverpos1)

  
    local stairpos1= {x=3559, y=3324, z=8, stackpos=1
    local stair1= getThingfromPos(stairpos1)

  
    if(item.uid == 4510) then
        if(item.itemid == 1945) then
            doTransformItem(item.uid,item.itemid+1)
        elseif(item.itemid == 1946) then
            doTransformItem(item.uid,item.itemid-1)
            end
          
    if(item.uid == 4510 and lever1.itemid == 1945 and stair1.itemid == 0) then
            doCreateItem(5260,1,stairpos1)
doPlayerSendTextMessage(cid,MESSAGE_INFO_DESCR,"Stair have been created again.")

          
    elseif(item.uid == 4510 and lever1.itemid == 1946 and stair1.itemid == 5260) then
            doRemoveItem(stair1.uid,1)
        doPlayerSendTextMessage(cid, MESSAGE_INFO_DESCR,"Stair have been removed.")

end

    end
    return TRUE  
end
 
Upvote 0 Downvote
deleted leverpos

Code: 
local function doorEnter(cid, item, toPosition)
    doTransformItem(item.uid, item.itemid + 1)
    doTeleportThing(cid, toPosition)
end

function onUse(cid, item, frompos, itemEx, topos)
    local pos = {x = 209, y = 483, z = 5, stackpos = 253}
    local stairs = 5260
    if (item.itemid == 1945) then
        doCreateItem(stairs, 1, pos)
        doPlayerSendTextMessage(cid, MESSAGE_INFO_DESCR, "Stairs appeared.")
        doTransformItem(item.uid,item.itemid+1)
        return true
    end
    if(item.itemid == 1946) then
        doRemoveItem(getTileItemById(pos,stairs).uid)
        doPlayerSendTextMessage(cid, MESSAGE_INFO_DESCR, "Stairs disappeared.")
        doTransformItem(item.uid,item.itemid-1)
        return true
    end
    return true
end
 
Upvote 0 Downvote
kkk111 said:
deleted leverpos

Code: 
local function doorEnter(cid, item, toPosition)
    doTransformItem(item.uid, item.itemid + 1)
    doTeleportThing(cid, toPosition)
end

function onUse(cid, item, frompos, itemEx, topos)
    local pos = {x = 209, y = 483, z = 5, stackpos = 253}
    local stairs = 5260
    if (item.itemid == 1945) then
        doCreateItem(stairs, 1, pos)
        doPlayerSendTextMessage(cid, MESSAGE_INFO_DESCR, "Stairs appeared.")
        doTransformItem(item.uid,item.itemid+1)
        return true
    end
    if(item.itemid == 1946) then
        doRemoveItem(getTileItemById(pos,stairs).uid)
        doPlayerSendTextMessage(cid, MESSAGE_INFO_DESCR, "Stairs disappeared.")
        doTransformItem(item.uid,item.itemid-1)
        return true
    end
    return true
end
Click to expand...
Works like charm, ohh now i see. Why i used leverPos if i have onUse method lolol Thanks
 
Upvote 0 Downvote

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