Element group functions

[ds1-e]

Is your feature request related to a problem? Please describe. The reason why i am creating this request it's pretty simple. I feel like we lacks of built-in functions which would allow to manage our elements better.

Describe the solution you'd like addElementToGroup(element elementToAdd, element customElement)

• elementToAdd as title says.
• customElement created with createElement(...) function.

removeElementFromGroup(element elementToRemove, element customElement)

• ditto.
• ditto.

Describe alternatives you've considered setElementParent, however:

• It doesn't work for custom elements #314
• It's possible to only have one parent at same time, that means you wouldn't be able to have it in two groups :(

Check if element belongs to group via table, but:

local groupElements = {}
local guiWindow = guiCreateWindow(...)

groupElements[guiWindow] = true

function onClientGUIClick(...)
    if groupElements[source] then
        print("Yay!")
    end
end
addEventHandler("onClientGUIClick", root, onClientGUIClick)

• It requires event to be attached for an element (such as root) which might contains a lot of childrens. Which is not good. Check #1564 for more details.

Additional context I suggested something similar to it (if you seen Pirulax's feature request), but i think that's more flexible. Additionally, if this couldn't be realised i'd open another issue for table solution.

[Pirulax]

Attaching handlers on the root isn't slow. Triggering events on root, on the other hand, is. Generally I'd recommend you to attach handlers on root (if you can't narrow it down), but never trigger anything on root, unless you want to absolutely kill performance.