-- Private Methods


function init(self)
	local frame = self.Frame
	local dragger = frame.Dragger
	local background = frame.Background
	
	local axis = self._Axis
	local maid = self._Maid
	local spring = self._Spring
	local dragTracker = Lazy.Classes.Dragger.new(dragger)
	
	self.DragStart = dragTracker.DragStart
	self.DragStop = dragTracker.DragStop
	
	maid:Mark(frame)
	maid:Mark(self._ChangedBind)
	maid:Mark(self._ClickedBind)
	maid:Mark(function() dragTracker:Destroy() end)
	
	-- Get bounds and background size scaled accordingly for calculations
	local function setUdim2(a, b)
		if (axis == "y") then a, b = b, a end
		return UDim2.new(a, 0, b, 0)
	end
	
	local last = -1
	local bPos, bSize
	local function updateBounds()
		bPos, bSize = getBounds(self)
		background.Size = setUdim2(bSize / frame.AbsoluteSize[axis], 1)
		last = -1
	end
	
	updateBounds()
	maid:Mark(frame:GetPropertyChangedSignal("AbsoluteSize"):Connect(updateBounds))
	maid:Mark(frame:GetPropertyChangedSignal("AbsolutePosition"):Connect(updateBounds))
	maid:Mark(frame:GetPropertyChangedSignal("Parent"):Connect(updateBounds))
	
	-- Move the slider when the xbox moves it
	local xboxDir = 0
	local xboxTick = 0
	local xboxSelected = false
	
	maid:Mark(dragger.SelectionGained:Connect(function()
		xboxSelected = true
	end))
	
	maid:Mark(dragger.SelectionLost:Connect(function()
		xboxSelected = false
	end))
	
	maid:Mark(UIS.InputChanged:Connect(function(input, process)
		if (process and input.KeyCode == THUMBSTICK) then
			local pos = input.Position
			xboxDir = math.abs(pos[axis]) > XBOX_DEADZONE and math.sign(pos[axis]) or 0
		end
	end))
	
	-- Move the slider when we drag it
	maid:Mark(dragTracker.DragChanged:Connect(function(element, input, delta)
		if (self.IsActive) then
			self:Set((input.Position[axis] - bPos) / bSize, false)
		end
	end))
	
	-- Move the slider when we click somewhere on the bar
	maid:Mark(frame.InputBegan:Connect(function(input)
		if (input.UserInputType == Enum.UserInputType.MouseButton1 or input.UserInputType == Enum.UserInputType.Touch) then
			local t = (input.Position[axis] - bPos) / bSize
			self._ClickedBind:Fire(math.clamp(t, 0, 1))
			if (self.IsActive) then
				self:Set(t, self.TweenClick)
			end
		end
	end))
	
	-- position the slider
	maid:Mark(RUNSERVICE.RenderStepped:Connect(function(dt)
		if (xboxSelected) then
			local t = tick()
			if (self.Interval <= 0) then
				self:Set(self:Get() + xboxDir*XBOX_STEP*dt*60)
			elseif (t - xboxTick > DEBOUNCE_TICK) then
				xboxTick = t
				self:Set(self:Get() + self.Interval*xboxDir)
			end
		end
		
		spring:Update(dt)
		local x = spring.x
		if (x ~= last) then
			local scalePos = (bPos + (x * bSize) - frame.AbsolutePosition[axis]) / frame.AbsoluteSize[axis]
			dragger.Position = setUdim2(scalePos, 0.5)
			self._ChangedBind:Fire(self:Get())
			last = x
		end
	end))
end

function getBounds(self)
	local frame = self.Frame
	local dragger = frame.Dragger
	local axis = self._Axis
	
	local pos = frame.AbsolutePosition[axis] + dragger.AbsoluteSize[axis]/2
	local size = frame.AbsoluteSize[axis] - dragger.AbsoluteSize[axis]
	
	return pos, size
end
