How to lock a rotation value

Help and Feedback Scripting Support
#1

im trying to make it so a turret stops following the mouse at a certain point
when it does it spins

video:
https://streamable.com/k7e79g

code:

aimpos = mouse.Hit.p
	if gun.gun.base.Orientation.y >= 105 and dontmove == false then
		gun.gun.base.Orientation = Vector3.new(gun.gun.base.Orientation.x,104,gun.gun.base.Orientation.z)
		dontmove = true
	end
	if gun.gun.base.Orientation.y <= 77 and dontmove == false then
		gun.gun.base.Orientation = Vector3.new(gun.gun.base.Orientation.x,78,gun.gun.base.Orientation.z)
		dontmove = true
	end
	if gun.gun.base.Orientation.y <= 104 and gun.gun.base.Orientation.y >= 78 and dontmove == true then
		dontmove = false
	end
	if (aimpos-gun.base.Position).magnitude>3 and dontmove == false then
	
	
	local c = aimpos
	local x = (gun.gun:GetPrimaryPartCFrame()*CFrame.new(0, 0, -20)).x
	local y = SPAWN.y
	local z = (gun.gun:GetPrimaryPartCFrame()*CFrame.new(0, 0, -20)).z
	A = Vector3.new(x,
					y,
					z
					)
	if c then
		gun.gun:SetPrimaryPartCFrame(
			CFrame.new(gun.body:GetPrimaryPartCFrame().p,Vector3.new(c.x, -20, c.z))
		)
		gun.body:SetPrimaryPartCFrame(
			CFrame.new(
				SPAWN.p,
				A
			)
		)
	else
		gun:SetPrimaryPartCFrame(gun.body:GetPrimaryPartCFrame())
		gun.body:SetPrimaryPartCFrame(
			CFrame.new(
				SPAWN.p,
				A
			)
		)
		end
	end
#2

You can use math.clamp() to limit a value between a min and max. You can also just try using a hingeconstraint and set the min and max rotation angles

#3

i got it to work with left and right but now when i try to make it work with going down it spins like crazy

video:
https://streamable.com/yzpyon

code:

mouse.Move:Connect(function()
	local delta = mouse.Hit.Position - gun.gun.base.CFrame.Position
	local y = mouse.Hit.p.y

	gun.gun.base.HingeConstraint.TargetAngle = math.deg(math.atan2(delta.Z, delta.X))
	gun.gun.base.Orientation = Vector3.new(gun.gun.base.Orientation.x,y,gun.gun.base.Orientation.z)
end)