Strange GetAllEntitiesUnderMouse Behaviour

[Viktor234]

Recently while modding around I did encounter the following feature/bug which kept crashing my client when pressing a certain button:

 

If I use the following code in the console

TheInput:AddKeyDownHandler(string.byte('a'),function() for k,v in pairs(TheInput:GetAllEntitiesUnderMouse()) do print(k,v) end end)

and press in this case the button 'a' while hovering over an entity, I get normal results like:

- Just like I want to have it

But when hovering over any HUD like my inventory, I keep getting results like

- Looks bugged out

and entities which are behind the HUD do not appear at all in this case. It's also annoying because since the results do exist but they aren't able to handle ingame functions like 'GetPosition' or so, the mod just keeps crashing whenever I use it while hovering above the HUD.

If I open up my console and input the following code while hovering above the HUD

for k,v in pairs(TheInput:GetAllEntitiesUnderMouse()) do print(k,v) end

then I get results like that one:

- Just like I want to have it

But that's not the case if I use the function as a key down handler.

 

Is that an feature/bug which can be avoided by using different commands or anything? Or would I need to wait for Klei to change/fix it?

[Hornete]

On 6/6/2020 at 5:05 PM, Viktor234 said:

Is that an feature/bug which can be avoided by using different commands or anything? Or would I need to wait for Klei to change/fix it?

Widgets/UI are entities, so the game must be getting these widgets and usually it'd print out its prefab name but of course widgets dont have prefab names so it just appears as nothing.

To get rid of widgets/ui from your table you can probably do something like this

local ents =  TheInput:GetAllEntitiesUnderMouse()

for k, v in pairs(ents) do
	if v ~= nil and v:HasTag("widget") or v:HasTag("UI") then
		table.remove(ents, k)
	end
end

 

[Viktor234]

11 hours ago, Hornete said:

To get rid of widgets/ui from your table you can probably do something like this

local ents =  TheInput:GetAllEntitiesUnderMouse()

for k, v in pairs(ents) do
	if v ~= nil and v:HasTag("widget") or v:HasTag("UI") then
		table.remove(ents, k)
	end
end

Using this for-loop won't fix 100% of the crashes considering the fact that removing the n-th element of the list will just skip the n+1-th element since lua doesn't recognize in that case that the list became smaller. An one-liner example:

list = {1,2,3,4,5,6,7,8} for k, v in pairs(list) do table.remove(list, k) end for k, v in pairs(list) do print(list[k]) end print("done")

While this function is supposed to remove all the numbers from the list, it will remove only the numbers 1,3,5,7 and print
2 4 6 8 done

A code better suitable for that could be this one:

list = {1,2,3,4,5,6,7,8} for k = #list,1,-1 do v = list[k] table.remove(list, k) end for k, v in pairs(list) do print(list[k]) end print("done")

Since removing the n-th element in this case won't affect the incoming elements at all, resulting in all of the numbers being removed from the list.