-- This loads from, or lazily creates, NumberValue objects for exposed parameters

function OrbitalCamera:LoadNumberValueParameters()
	-- These initial values do not require change listeners since they are read only once
	self:LoadOrCreateNumberValueParameter("InitialElevation", "NumberValue", nil)
	self:LoadOrCreateNumberValueParameter("InitialDistance", "NumberValue", nil)

	-- Note: ReferenceAzimuth is also used as an initial value, but needs a change listener because it is used in the calculation of the limits
	self:LoadOrCreateNumberValueParameter("ReferenceAzimuth", "NumberValue", self.SetAndBoundsCheckAzimuthValue)
	self:LoadOrCreateNumberValueParameter("CWAzimuthTravel", "NumberValue", self.SetAndBoundsCheckAzimuthValues)
	self:LoadOrCreateNumberValueParameter("CCWAzimuthTravel", "NumberValue", self.SetAndBoundsCheckAzimuthValues)
	self:LoadOrCreateNumberValueParameter("MinElevation", "NumberValue", self.SetAndBoundsCheckElevationValues)
	self:LoadOrCreateNumberValueParameter("MaxElevation", "NumberValue", self.SetAndBoundsCheckElevationValues)
	self:LoadOrCreateNumberValueParameter("MinDistance", "NumberValue", self.SetAndBoundsCheckDistanceValues)
	self:LoadOrCreateNumberValueParameter("MaxDistance", "NumberValue", self.SetAndBoundsCheckDistanceValues)
	self:LoadOrCreateNumberValueParameter("UseAzimuthLimits", "BoolValue", self.SetAndBoundsCheckAzimuthValues)

	-- Internal values set (in radians, from degrees), plus sanitization
	self.curAzimuthRad = math.rad(self.externalProperties["ReferenceAzimuth"])
	self.curElevationRad = math.rad(self.externalProperties["InitialElevation"])
	self.curDistance = self.externalProperties["InitialDistance"]

	self:SetAndBoundsCheckAzimuthValues()
	self:SetAndBoundsCheckElevationValues()
	self:SetAndBoundsCheckDistanceValues()
end

function OrbitalCamera:GetModuleName()
	return "OrbitalCamera"
end

function OrbitalCamera:SetInitialOrientation(humanoid)
	if not humanoid or not humanoid.RootPart then
		warn("OrbitalCamera could not set initial orientation due to missing humanoid")
		return
	end
	local newDesiredLook = (humanoid.RootPart.CFrame.lookVector - Vector3.new(0,0.23,0)).unit
	local horizontalShift = Util.GetAngleBetweenXZVectors(newDesiredLook, self:GetCameraLookVector())
	local vertShift = math.asin(self:GetCameraLookVector().y) - math.asin(newDesiredLook.y)
	if not Util.IsFinite(horizontalShift) then
		horizontalShift = 0
	end
	if not Util.IsFinite(vertShift) then
		vertShift = 0
	end
end
