infinite health door in roblox

local mdl = Instance.new("Model")
mdl.Name = "Infinite Health Door"
mdl.Parent = workspace
local snd = Instance.new("Sound")
snd.SoundId = "rbxassetid://305633397"
local ihd = Instance.new("Part")
snd.Parent = ihd
ihd.Parent = mdl
ihd.Material = "CorrodedMetal"
ihd.Anchored = true
ihd.Size = Vector3.new(7,9,2)
ihd.Position = Vector3.new(29,4.5,-45)
ihd.Rotation = Vector3.new(0,15,0)
local part1 = Instance.new("Part")
part1.Material = "DiamondPlate"
part1.Parent = mdl
part1.Size = Vector3.new(1,9,2)
part1.Position = Vector3.new(24,4.5,-45)
part1.Anchored = true
local part2 = part1:Clone()
part2.Parent = mdl
part2.Position = Vector3.new(33,4.5,-46)
local hitbox = Instance.new("Part")
hitbox.Parent = mdl
hitbox.Anchored = true
hitbox.CanCollide = false
hitbox.Size = Vector3.new(2,9,2)
hitbox.Position = Vector3.new(25,4.5,-44)
hitbox.Transparency = 1
function touch(part)
    if part.Parent.Humanoid then
        part.Parent.Humanoid:TakeDamage(part.Parent.Humanoid.MaxHealth * 0.05)
        wait()
        part.Parent.Humanoid.MaxHealth = part.Parent.Humanoid.MaxHealth + 1
        part.Parent.Humanoid.Health = part.Parent.Humanoid.MaxHealth
    end
end
hitbox.Touched:Connect(touch)
function amog()
    snd:Destroy()
end
snd.Ended:Connect(amog)
snd:Play()
while wait() do
    ihd.Rotation = Vector3.new(0,14,0)
    hitbox.Size = Vector3.new(0,0,0)
    wait()
    ihd.Rotation = Vector3.new(0,15,0)
    hitbox.Size = Vector3.new(2,9,2)
end