Fall Damage script

--[[
Thanks for using this script
This script is made by Joriangames/Problox Studio Scripts
Want to know how to use this and script explanation?
Check the video here: https://youtu.be/49PD-ER8Vtc

]]
local minF = 15
local maxF = 45

game.Players.PlayerAdded:Connect(function(plr)
	plr.CharacterAdded:Connect(function(char)
		local hum = char:WaitForChild("Humanoid")
		local humR = char:WaitForChild("HumanoidRootPart")
		local humRHeight
		wait(3)

		hum.FreeFalling:Connect(function(Standing)
				if Standing then
					humRHeight = humR.Position.Y

					elseif not Standing then
						local fallHeight = humRHeight - humR.Position.Y
							if fallHeight >= maxF then
							char.Head:Destroy()
							elseif fallHeight >= minF then
								hum.Health = hum.Health -20
							end
				end
		end)
	end)
end)