Alright, so I made a dash script. But instead of it just being one key I want it to be w + w. You would just tap w twice in less than 1 second. I don't know how to do that. How do I make it so that it's a double-tap thingy?

local player = game.Players.LocalPlayer
repeat wait() until player.Character.Humanoid
local humanoid = player.Character.Humanoid
local mouse = player:GetMouse()

local animation = Instance.new("Animation")
animation.AnimationId = "http://www.roblox.com/asset/?id=" 

mouse.KeyDown:connect(function(key)
	if string.byte(key) == ??? then 
		local playAnimation = humanoid:LoadAnimation(anim)
		playAnimation:Play()
		script.Sound:Play()
		player.Character.HumanoidRootPart.Velocity = player.Character.HumanoidRootPart.CFrame.lookVector * 100
        wait(2.0)
	end
	wait(10)
end)