--!strict
--!optimize 2
--!native

local Types = require("../Types")

local int16_MAX = 2^(16-1)-1
local PI = math.pi

local float64 = require("./float64")
local int16 = require("./int16")

local function Radtoint16(radian: number)
	return math.round(radian*int16_MAX/PI)
end

local function Radfromint16(num: number)
	return num*PI/int16_MAX
end

return {
	write = function(self: Types.Writer, value: CFrame)
		local x, y, z = value.X, value.Y, value.Z
		local rx, ry, rz = value:ToEulerAnglesXYZ()

		float64.write(self, x)
		float64.write(self, y)
		float64.write(self, z)
		int16.write(self, Radtoint16( rx ))
		int16.write(self, Radtoint16( ry ))
		int16.write(self, Radtoint16( rz ))
	end,
	read = function(self: Types.Writer)
		return CFrame.new(
			float64.read(self),
			float64.read(self),
			float64.read(self)
		) * CFrame.Angles(
			Radfromint16(int16.read(self)),
			Radfromint16(int16.read(self)),
			Radfromint16(int16.read(self))
		)
	end,
	length = function()
		return 30
	end,
}