SetElementData: Difference between revisions

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This function stores data attached to an element. This data can be any primitive LUA type or MTA element (but not a text item or display).
This function stores data attached to an element. This data can be any primitive LUA type or MTA element (but not a text item or display).


Element data is a useful way to store data attached to players. It is also the way to add a column to the scoreboard, using [[addScoreboardColumn]].
Element data is a useful way to store data attached to players.


==Syntax==  
==Syntax==  

Revision as of 23:49, 31 May 2007

This function stores data attached to an element. This data can be any primitive LUA type or MTA element (but not a text item or display).

Element data is a useful way to store data attached to players.

Syntax

bool setElementData ( element theElement, string key, var value )

Required Arguments

  • theElement: The element you wish to attach the data to
  • key: The key you wish to store the data under
  • value: The value you wish to store

Returns

Returns true if the data was set succesfully, false otherwise.

Example

This example does... 

-- Make our 'joinTime' function be called when a player joins
addEventHandler ( "onPlayerJoin", getRootElement(), "joinTime" )
function joinTime ( )
    setElementData ( source, "joinTime", os.date() ) -- Store the current time in the player's data with the key 'joinTime'
end

-- Add a console command join_time, that takes an optional parameter of a player's name
addCommandHandler ( "join_time", "showJoinTime" )
function showJoinTime ( source, commandName, playerName )
    if ( playerName ) then -- see if a player was specified
        thePlayer = getPlayerFromNick ( playerName ) -- get the player element for the specified player
        if ( thePlayer ) then -- if one was found...
            outputChatBox ( getClientName ( thePlayer ) .. " joined " .. getElementData ( thePlayer, "joinTime" ), source ) -- output the player's join time
        else
            outputChatBox ( "Couldn't find '" .. playerName .. "'", source ) -- display an error
        end 
    else
        -- display when the player who used the function joined and inform how to see other people's join time
        outputChatBox ( "You joined " .. getElementData ( source, "joinTime" ), source )
        outputChatBox ( "Use 'join_time <player name>' to see other people's join time" )
    end
end

See Also


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