How would I make an automatically reloading gun?

How would I edit this script so that the gun would automatically reload when stored ammo equals 0?

if L_314_arg1.KeyCode == (Enum.KeyCode.R or L_314_arg1.KeyCode == Enum.KeyCode.ButtonX) and not L_79_ and not L_78_ and not L_77_ and L_15_ and not L_66_ and not L_64_ and not Shooting and not L_67_ and not L_74_ then		
			if not L_83_ then			
				if L_104_ > 0 and L_103_ < L_24_.Ammo then
					Shooting = false
					L_66_ = true

					for L_319_forvar1, L_320_forvar2 in pairs(game.Players:GetChildren()) do
						if L_320_forvar2 and L_320_forvar2:IsA('Player') and L_320_forvar2 ~= L_2_ and L_320_forvar2.TeamColor == L_2_.TeamColor then
							if (L_320_forvar2.Character.HumanoidRootPart.Position - L_3_.HumanoidRootPart.Position).magnitude  <= 150 then
								if L_7_:FindFirstChild('AHH') and not L_7_.AHH.IsPlaying then
									L_119_:FireServer(L_7_.AHH, L_100_[math.random(0, 23)])
								end
							end
						end
					end

					ReloadAnim()
					if L_103_ <= 0 then
						if not L_24_.CanSlideLock then
							BoltBackAnim()
							BoltForwardAnim()
						end
					end
					IdleAnim()
					L_69_ = true

					if L_103_ <= 0 then
						if (L_104_ - (L_24_.Ammo - L_103_)) < 0 then
							L_103_ = L_103_ + L_104_
							L_104_ = 0
						else
							L_104_ = L_104_ - (L_24_.Ammo - L_103_)
							L_103_ = L_24_.Ammo
						end
					elseif L_103_ > 0 then
						if (L_104_ - (L_24_.Ammo - L_103_)) < 0 then
							L_103_ = L_103_ + L_104_ + 1
							L_104_ = 0
						else
							L_104_ = L_104_ - (L_24_.Ammo - L_103_)
							L_103_ = L_24_.Ammo + 0
						end
					end

					L_66_ = false
					if not L_75_ then
						L_69_ = true
					end
				end;
			elseif L_83_ then
				if L_105_ > 0 then
					Shooting = false
					L_66_ = true
					nadeReload()
					IdleAnim()
					L_66_ = false
					L_69_ = true
				end
			end;
			UpdateAmmo()
		end)

The logic behind it is really simple. Whenever the player shoots:

  1. Decrease the ammo value
  2. If the ammo becomes zero, then reload

Most games implement it as if you attempt to fire while ammo is zero, it reloads. There’s a funky edge case you can get if you try to reload on the same shot the ammo reaches zero.

Also, @OP, why is your code so obfuscated? Makes it near impossible to add relatively simple stuff like auto-reload if you can’t tell what any variable means.

I copied too much. The code for the script is like 2,200 lines long.