How to check if a key is being held down with UserInputService?

Help and Feedback Scripting Support
#1

Hello!
Currently I’m trying to make a simple 2D movement using UI’s
I’m trying to move the character sprite to the left but it work works every time you press the ‘A’ key instead of holding it down.
Could I get any help? Heres the code /

uiplayer = {
	plr = script.Parent.MainGame.Ground.player,
	movement_y = 0.001,
	movement_x = 0.001,
	spd = 2 --cannot be 1 or 0 (or else player will not move)
}

plr = game.Players.LocalPlayer
uis = game:GetService("UserInputService")

uis.InputBegan:Connect(function(key, gp)
	print("Key Pressed")
	if key.KeyCode == Enum.KeyCode.A then
		print("Key Pressed")
		uiplayer.plr.Position = UDim2.fromScale(uiplayer.plr.Position.X.Scale -uiplayer.movement_x * uiplayer.spd, uiplayer.plr.Position.Y.Scale)
	end
end)
#2

You can check if a key is being held down by using a while loop.

#3

Inefficient.

1 Like
#4

Didn’t work.
Here’s the code I might have done something wrong

while true do
	wait(0.2)
		uis.InputBegan:Connect(function(key, gp)
		print("Key Pressed")
		if key.KeyCode == Enum.KeyCode.A then
			print("Key Pressed")
			uiplayer.plr.Position = UDim2.fromScale(uiplayer.plr.Position.X.Scale -uiplayer.movement_x * uiplayer.spd, uiplayer.plr.Position.Y.Scale)
		end
	end)
end
#5

Use the InputEnded event to check if the key was unpressed.

uis.InputEnded:Connect(function(key, gp)
	print("Key Unpressed")
	if key.KeyCode == Enum.KeyCode.A then
		print("Key Unpressed")
		uiplayer.plr.Position = --position
	end
end)
1 Like
How do I smoothly move GUIs with arrow keys?
#6 
uiplayer = {
	plr = script.Parent.MainGame.Ground.player,
	movement_y = 0.001,
	movement_x = 0.001,
	spd = 2 --cannot be 1 or 0 (or else player will not move)
}

plr = game.Players.LocalPlayer
uis = game:GetService("UserInputService")

local keyPressed = false

uis.InputBegan:Connect(function(key, gp)
	if gp then return end
	
	if key.KeyCode == Enum.KeyCode.A then
		keyPressed = true
		while keyPressed do wait()
			print("Key Pressed")
			uiplayer.plr.Position = UDim2.fromScale(uiplayer.plr.Position.X.Scale -uiplayer.movement_x * uiplayer.spd, uiplayer.plr.Position.Y.Scale)
		end
	end
end)

uis.InputEnded:Connect(function(key)
	if key.KeyCode == Enum.KeyCode.A then
		keyPressed = false
	end
end)
2 Likes
KeyDown Troubleshooting
#7

Yes, but Before I add that I just want to test to see if it will move to the left. And If that works then I would add InputEnded to make it stop moving.

#8

This code will error, you need a time break between each iteration of the loop.

#9

Studio stopped responding as I ran the code.

#10

You need a time break between each iteration of the while loop.

#11

Could I add a wait to the loop?

#12

Yes, that is what I meant by break.

#13

Now it works, Thanks @CipherFunctions and @testattempt.

1 Like