I need to know something

[EngMohamedLish]

Hello guys, I would like to know how to save things i have in my server, like... Every script i make, its affects be saved when a player logout or quit.

Like:

Save player skin when he logout or quit, so when he come back, he find his skin didn't disappear

Money as well, weapons, stats and everything? Also, I need to know the best way, and the easiest.

[Noki]

setAccountData 
getAccountData 

[EngMohamedLish]

setAccountData 
getAccountData 

Alright, I tried to make an example myself, but it doesn't work, could you check it?

addEventHandler ("onPlayerQuit", root, function() 
local money = getPlayerMoney(source) 
setElementData (source, "Money", money) 
end) 
  
addEventHandler ("onPlayerLogin", root, function() 
getElementData(source, "Money") 
end) 

[Noki]

You're using element data, which when assigned to a player, will reset when that player disconnects. So, you'll need to use account data.

addEventHandler("onPlayerQuit", root,  
    function () 
        if (not isGuestAccount(source)) then 
            local acc = getPlayerAccount(source) 
            local money = getPlayerMoney(source) 
            setAccountData(acc, "Money", money) 
        end 
    end 
) 
  
addEventHandler("onPlayerLogin", root, 
    function (_, theCurrentAccount) 
        local money = getAccountData(theCurrentAccount, "Money") 
        setPlayerMoney(source, tonumber(money)) 
    end 
) 

Using this eliminates the need for that element data, and instead you just fetch the money and save it when needed.

[EngMohamedLish]

You're using element data, which when assigned to a player, will reset when that player disconnects. So, you'll need to use account data.

addEventHandler("onPlayerQuit", root,  
    function () 
        if (not isGuestAccount(source)) then 
            local acc = getPlayerAccount(source) 
            local money = getPlayerMoney(source) 
            setAccountData(acc, "Money", money) 
        end 
    end 
) 
  
addEventHandler("onPlayerLogin", root, 
    function (_, theCurrentAccount) 
        local money = getAccountData(theCurrentAccount, "Money") 
        setPlayerMoney(source, tonumber(money)) 
    end 
) 

Using this eliminates the need for that element data, and instead you just fetch the money and save it when needed.

Alright, I totally understand the script, although I don't understand this part, right here:

function (_, theCurrentAccount) 

Could you explain it to me? about (_, theCurrentAccount) ? is theCurrentAccount is a function? Or just a name can be changed? and what is the next argument in that function (_, 'here')

[Walid]

theCurrentAccount it's an argument

Read this : OnPlayerLogin event

[Noki]

Have a look at the onPlayerLogin event. You see the part where it says 'parameters'? They are basically the arguments that you can put in the functions that use that event. So, in our case, we only needed to know the current account, that was just logged into using onPlayerLogin. So, we used an underscore to nullify the other argument (thePreviousAccount), and proceeded to write theCurrentAccount as our second argument. By doing this, we're bypassing the first paramater, because we don't need it.

The wiki page for that event should show any possible parameters you're able to use with this function.

[EngMohamedLish]

theCurrentAccount it's an argument

Read this : OnPlayerLogin event

Alright, Understood, but why do you place _, while don't you do function (theCurrentAccount) instead of (_, theCurrentAccount)

Also, I do not understand what:

thePreviousAccount: The account the player was logged into before

thePreviousAccount mention to what? ... an account that played logged Into before? I didn't get it? could you tell me more ?

[EngMohamedLish]

Have a look at the onPlayerLogin event. You see the part where it says 'parameters'? They are basically the arguments that you can put in the functions that use that event. So, in our case, we only needed to know the current account, that was just logged into using onPlayerLogin. So, we used an underscore to nullify the other argument (thePreviousAccount), and proceeded to write theCurrentAccount as our second argument. By doing this, we're bypassing the first paramater, because we don't need it.

The wiki page for that event should show any possible parameters you're able to use with this function.

OHH! so we pass "thePreviousAccount" by "_," Right?!

[Noki]

Have a look at the onPlayerLogin event. You see the part where it says 'parameters'? They are basically the arguments that you can put in the functions that use that event. So, in our case, we only needed to know the current account, that was just logged into using onPlayerLogin. So, we used an underscore to nullify the other argument (thePreviousAccount), and proceeded to write theCurrentAccount as our second argument. By doing this, we're bypassing the first paramater, because we don't need it.

The wiki page for that event should show any possible parameters you're able to use with this function.

OHH! so we pass "thePreviousAccount" by "_," Right?!

I basically explained everything that Walid didn't.

Anyway, Yes, we are using '_' because we do not need to pass thePreviousAccount. However, that is only for this case. Don't just think that parameter is not needed at all, because it can be useful from time to time. Only underscore if you do not require a parameter that is before one you want to use.

You can also rename the parameters, as they only rely on chronological order. For example, I could call thePreviousAccount 'TPA' if I wanted to. It would work the same way. But, the next one would be theCurrentAccount, I can call it whatever I want.

[EngMohamedLish]

Have a look at the onPlayerLogin event. You see the part where it says 'parameters'? They are basically the arguments that you can put in the functions that use that event. So, in our case, we only needed to know the current account, that was just logged into using onPlayerLogin. So, we used an underscore to nullify the other argument (thePreviousAccount), and proceeded to write theCurrentAccount as our second argument. By doing this, we're bypassing the first paramater, because we don't need it.

The wiki page for that event should show any possible parameters you're able to use with this function.

OHH! so we pass "thePreviousAccount" by "_," Right?!

I basically explained everything that Walid didn't.

Anyway, Yes, we are using '_' because we do not need to pass thePreviousAccount. However, that is only for this case. Don't just think that parameter is not needed at all, because it can be useful from time to time. Only underscore if you do not require a parameter that is before one you want to use.

You can also rename the parameters, as they only rely on chronological order. For example, I could call thePreviousAccount 'TPA' if I wanted to. It would work the same way. But, the next one would be theCurrentAccount, I can call it whatever I want.

Thank you very much, I understood everything. Whatever, I just made an example myself, but i didn't get any bug through /debugscript 3, whatever, It doesn't work. Could you check it, and tell me what's the problem with it?

addEventHandler("onPlayerQuit", root, function(source) 
    if isGuestAccount(source) then return 
        end 
            local account = getPlayerAccount(source) 
        local money = getPlayerMoney(source) 
    setAccountData(account, "Money", money) 
end) 
addEventHandler("onPlayerLogin", root, function(_, theCurrentAccount) 
getAccountData (theCurrentAccount, "Money") 
end) 
  

[Walid]

it should be like this

addEventHandler("onPlayerQuit", root,  
    function() 
    local account = getPlayerAccount(source) 
        if isGuestAccount(account) then return end 
        local money = getPlayerMoney(source) 
        setAccountData(account, "Money", money) 
    end  
) 
  
addEventHandler("onPlayerLogin", root,  
    function(_, theCurrentAccount) 
    local money = getAccountData (theCurrentAccount, "Money") 
    if money then  
    setPlayerMoney(source, tonumber(money)) 
    end  
end) 

[EngMohamedLish]

it should be like this

addEventHandler("onPlayerQuit", root,  
    function() 
    local account = getPlayerAccount(source) 
        if isGuestAccount(account) then return end 
        local money = getPlayerMoney(source) 
        setAccountData(account, "Money", money) 
    end  
) 
  
addEventHandler("onPlayerLogin", root,  
    function(_, theCurrentAccount) 
    local money = getAccountData (theCurrentAccount, "Money") 
    if money then  
    setPlayerMoney(source, tonumber(money)) 
    end  
end) 

Alright, thanks. And actually, i see something that's not going to be easy, to be made.

I tried to save the player position, and when he joins he spawns there. but doesn't work:

no errors as well

addEventHandler ("onPlayerQuit", root, function () 
        if isGuestAccount(source) then return end 
    x, y, z =  getElementPosition(source) 
    acc = getPlayerAccount(source) 
    setAccountData (acc, "x.s", x) 
    setAccountData (acc, "y.s", y) 
    setAccountData (acc, "z.s", z) 
end) 
addEventHandler ("onPlayerLogin", root, function(_, account) 
    ax = getAccountData (account, "x.s") 
    ay = getAccountData (account, "x.s") 
    az = getAccountData (account, "x.s") 
    spawnPlayer(source, ax, ay, az) 
  
end) 
  

[EngMohamedLish]

it should be like this

addEventHandler("onPlayerQuit", root,  
    function() 
    local account = getPlayerAccount(source) 
        if isGuestAccount(account) then return end 
        local money = getPlayerMoney(source) 
        setAccountData(account, "Money", money) 
    end  
) 
  
addEventHandler("onPlayerLogin", root,  
    function(_, theCurrentAccount) 
    local money = getAccountData (theCurrentAccount, "Money") 
    if money then  
    setPlayerMoney(source, tonumber(money)) 
    end  
end) 

Alright, thanks. And actually, i see something that's not going to be easy, to be made.

I tried to save the player position, and when he joins he spawns there. but doesn't work:

no errors as well

addEventHandler ("onPlayerQuit", root, function () 
        if isGuestAccount(source) then return end 
    x, y, z =  getElementPosition(source) 
    acc = getPlayerAccount(source) 
    setAccountData (acc, "x.s", x) 
    setAccountData (acc, "y.s", y) 
    setAccountData (acc, "z.s", z) 
end) 
addEventHandler ("onPlayerLogin", root, function(_, account) 
    ax = getAccountData (account, "x.s") 
    ay = getAccountData (account, "x.s") 
    az = getAccountData (account, "x.s") 
    spawnPlayer(source, ax, ay, az) 
  
end) 
  

Actually, solved it Thanks for your help, anyways !

[Walid]

It can be like this

addEventHandler ("onPlayerQuit", root,  
function () 
    local account = getPlayerAccount(source) 
    if account and not isGuestAccount(source) then  
    local x, y, z =  getElementPosition(source) 
    setAccountData (account, "position", toJSON({x,y,z})) 
    end  
end 
) 
  
addEventHandler ("onPlayerLogin", root,  
    function(_, account) 
    local position = getAccountData(account,"position") 
    if postion then  
    local x, y, z = unpack(fromJSON(position))  
    spawnPlayer(source, x, y, z) 
end 
) 

[EngMohamedLish]

It can be like this

addEventHandler ("onPlayerQuit", root,  
function () 
    local account = getPlayerAccount(source) 
    if account and not isGuestAccount(source) then  
    local x, y, z =  getElementPosition(source) 
    setAccountData (account, "position", toJSON({x,y,z})) 
    end  
end 
) 
  
addEventHandler ("onPlayerLogin", root,  
    function(_, account) 
    local position = getAccountData(account,"position") 
    if postion then  
    local x, y, z = unpack(fromJSON(position))  
    spawnPlayer(source, x, y, z) 
end 
) 

Aha, Thank you man It is looking more professional idea, than the one i made ! I just don't understand something here, It is my first time to see "toJSON" and fromJSON" what is that, actually? Could you explain it, for me ? THANKS ! ! !

[Noki]

JSON converts tables into variables and strings into variables. Line 6 has x, y and z in a table, and is saving that table as a string. When you login, it converts that string into a variable.

[EngMohamedLish]

JSON converts tables into variables and strings into variables. Line 6 has x, y and z in a table, and is saving that table as a string. When you login, it converts that string into a variable.

Thanks ! And, what a smart function you use !