TouchMoved passes a Vector3 instead of a Vector2

Bug Reports Engine Bugs
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#1

Repro code:

--!strict
local insetBottom, _ = game.GuiService:GetGuiInset()

game.UserInputService.TouchMoved:Connect(function(touch: InputObject, gpe)
	if not gpe then 
		print("touchPos:"..tostring(touch.Position)..", inset: "..tostring(insetTop))
				
		self.TouchPosition = touch.Position :: Vector2 - insetBottom --you will notice this warn us saying its a Vector3
	end
end)

error
error2340×1080 146 KB

Expected behavior

According to the documents its supposed inputObject.Position is a Vector2, however it passes a Vector3 as seen in the given image. Occurs in game(like in image) as well as in studio!

#2

That specific line in the Docs is incorrect, if you check the page for InputObject.Position, you can see it’s documented as a Vector3:

image

I am aware of at least one place in which the Z component is used, which is for Mouse Scroll events with UserInputService.InputChanged.

1 Like
#3

Expected behavior.

InputObject’s Position property is always a Vector3 even though not every event type uses all three components of the Vector3 for something.

3 Likes