[FIXED] Roblox Studio Gun Script

player = game.Players.LocalPlayer
mouse = player:GetMouse()
maxAmmo = 250
ammo = maxAmmo
rate = 0.002
firing= false
canFire= true
reload = 2
damage = 12
script.Parent.Activated:Connect(function()
    if ammo >= 1 and canFire == true then
        firing = true
        repeat local bullet= Instance.new("Part", workspace)
            bullet.CanCollide = false
            bullet.Shape = "Ball"
            bullet.Material = "Neon"
            bullet.BrickColor = BrickColor.new("Bright red")
            bullet.Size = Vector3.new(0.4,0.4,0.4)
            local Axis = CFrame.new(script.Parent.Handle.Position, mouse.Hit.p)
            local spread = math.rad(2)
            local Theta = math.random() * math.pi * 2
            local Phi = math.random() * spread
            local x = math.cos(Theta) * math.sin(Phi)
            local y = math.sin(Theta) * math.sin(Phi)
            local z = math.cos(Phi)
            local Coordinate = Axis * CFrame.fromEulerAnglesXYZ(x,y,z)
            bullet.CFrame = Coordinate
            local vel = Instance.new("BodyVelocity")
            vel.Velocity = bullet.CFrame.LookVector*250
            game.Debris:AddItem(bullet, 15)
            bullet.Touched:Connect(function(hit)
                if hit.Parent ~= player.Character and hit.Parent:FindFirstChild("Humanoid") then
                    hit.Parent.Humanoid.Health = hit.Parent.Humanoid.Health - damage
                    bullet:Destroy()
                end
            end)
            wait(rate)
        until ammo < 1 or firing == false
    end
end)
script.Parent.Deactivated:Connect(function()
    if firing == true then
        firing = false
    end
end)
mouse.KeyDown:Connect(function(k)
    if string.lower(k) == "r" and ammo < maxAmmo and firing == false then
        canFire = false
        wait(reload)
        ammo = maxAmmo
        canFire = true
    end
end)