HU/getRootElement: Difference between revisions

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{{Server client function}}
{{Server client function}}
__NOTOC__
__NOTOC__
This function returns the root node of the [[element tree]], called ''root''. This node contains every other element: all resource root elements, players and remote clients. It is never destroyed and cannot be destroyed using [[destroyElement]].
Ez a függvény visszaadja az [[element tree|elemfa]] gyökér csomópontját, melyet ''root''-nak hívnak. This node contains every other element: all resource root elements, players and remote clients. It is never destroyed and cannot be destroyed using [[destroyElement]].


It is often used to attach handler functions to events triggered for any element, or also to make a scripting function affect all elements.
It is often used to attach handler functions to events triggered for any element, or also to make a scripting function affect all elements.

Revision as of 13:52, 19 July 2018

Ez a függvény visszaadja az elemfa gyökér csomópontját, melyet root-nak hívnak. This node contains every other element: all resource root elements, players and remote clients. It is never destroyed and cannot be destroyed using destroyElement.

It is often used to attach handler functions to events triggered for any element, or also to make a scripting function affect all elements.

[[{{{image}}}|link=|]] Note: All resources have a predefined global variable called root that has the root element as value. The variable exists server side as well as client side.

Syntax

element getRootElement ( )

Returns

Returns the root element.

Example

This example will output the number of loaded resources by counting resource elements that are children of the root node. 

--By default, predefined variable 'root' is getRootElement()
local rootChildren = getElementChildren( root )

local resourceCount = 0
for k, child in ipairs( rootChildren ) do
	if getElementType( child ) == "resource" then
		resourceCount = resourceCount + 1
	end
end

outputChatBox( "There are " .. resourceCount .. " loaded resources." )

See Also

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