-- This file is sourced from Matter by evaera (https://github.com/evaera)
-- License: Copyright (c) 2021 Eryn L. K., MIT License
-- Source: https://github.com/matter-ecs/matter/blob/main/lib/rollingAverage.luau

local MAX_SAMPLES = 60

local function addSample(samples, value)
	samples[samples.index or 1] = value
	samples.index = if samples.index
		then (samples.index % MAX_SAMPLES) + 1
		else 1
end

local function getAverage(samples)
	local sum = 0

	for i = 1, #samples do
		sum += samples[i]
	end

	return sum / #samples
end

return {
	addSample = addSample,
	getAverage = getAverage,
}