IsKeyDown service is slow

Help and Feedback Scripting Support
#1

I have just found out about the IsKeyDown service in Roblox not long ago and I’m trying to use it for when a character is blocking.

local function Input(input, gameProcessedEvent)
	if isFKeyDown() then
		game.ReplicatedStorage.BlockSystem.Hyperarmor:FireServer()
		print("Hyperamor")
	else
		game.ReplicatedStorage.BlockSystem.NotBlocking:FireServer()
		print("Not Blocking")
	end
end

UIS.InputBegan:Connect(Input)

In this case when I hold F, the function takes a bit to detect it, and when I release F, the function detects it only after up to a few seconds. Am I using the IsKeyDown service correctly or are there any alternatives?

#2

You can use UserInputService.InputBegan and detect the F key to set a value to true, and then set it to false with UserInputService.InputEnded to store whether or not the player is blocking. It should be a viable alternative.

local IsBlocking = false

UIS.InputBegan:connect(function(input)
	if input.KeyCode == Enum.KeyCode.F then
		IsBlocking = true
	end
end)

UIS.InputEnded:connect(function(input)
	if input.KeyCode == Enum.KeyCode.F then
		IsBlocking = false
	end
end)

Make sure your doing this in a LocalScript and replicating it to the server!

1 Like
#3 
game.ReplicatedStorage.BlockSystem.Hyperarmor:FireServer()

This is going to be affected by network latency.

#4

True. Using remote events can make things much slower.

#5

Here’s a more organized method that should be the standard for all uses for this.

function input(iObj, ignore)
	if ignore then return end
	if input.KeyCode == Enum.KeyCode.F then
		IsBlocking = iObj.UserInputState == Enum.UserInputState.Begin
	end
end

UIS.InputBegan:Connect(input)
UIS.InputEnded:Connect(input)