Roblox lua Grow-n-Shrink

1_ GrowScript.lua

local debounceTime = 3
local canTouch = true
script.Parent.Touched:Connect(function(hit)
	local Humanoid = hit.Parent:FindFirstChild("Humanoid")
	if Humanoid and canTouch then
		canTouch = false
		local HD = Humanoid:GetAppliedDescription()
		HD.HeadScale = HD.HeadScale * 2
		HD.DepthScale = HD.DepthScale * 2
		HD.WidthScale = HD.WidthScale * 2
		HD.HeightScale = HD.HeightScale * 2		
		Humanoid.JumpPower *= 1.1
		Humanoid.WalkSpeed *= 1.5
		Humanoid:ApplyDescription(HD)

		local oldColor = script.Parent.BrickColor
		script.Parent.BrickColor = BrickColor.Gray()
		
		wait(debounceTime)
		script.Parent.BrickColor = oldColor
		canTouch = true
	end
end)

2_ UpdateHightDisplay.lua

local heightValue = game.ReplicatedStorage.HeightValue;

local textLabel = script.Parent

local function updateText()
	textLabel.Text = 'Height: ' .. string.format("%.2f", heightValue.Value)
end

heightValue.Changed:Connect(updateText)
updateText()

3_ModifyGrowScript.lua

-- line 1
local heightValue = game.ReplicatedStorage.HeightValue

-- line 18
heightValue.Value = HD.HeightScale

4_ShrinkScript.lua

local heightValue = game.ReplicatedStorage.HeightValue;

local debounceTime = 3
local canTouch = true
script.Parent.Touched:Connect(function(hit)
	local Humanoid = hit.Parent:FindFirstChild("Humanoid")
	if Humanoid and canTouch then
		canTouch = false
		local HD = Humanoid:GetAppliedDescription()
		HD.HeadScale = HD.HeadScale * 0.5
		HD.DepthScale = HD.DepthScale * 0.5
		HD.WidthScale = HD.WidthScale * 0.5
		HD.HeightScale = HD.HeightScale * 0.5
		Humanoid.JumpPower *= 0.9
		Humanoid.WalkSpeed *= 0.9
		Humanoid:ApplyDescription(HD)
		
		heightValue.Value = HD.HeightScale;

		local oldColor = script.Parent.BrickColor;
		script.Parent.BrickColor = BrickColor.Gray()
		
		wait(debounceTime)
		script.Parent.BrickColor = oldColor
		canTouch = true
	end
end)