OCS RM Furnace Counter

local targets = {'-4,0,5', '-5,-1,5', '-5,1,5', '-6,-1,5', '-6,1,5', '-7,-1,5', '-7,1,5', '-8,0,5'}

os.loadAPI('ocs/apis/sensor')
local prox, monitor = sensor.wrap('right'), peripheral.wrap('bottom')

local currentRMFurnaces, trueEmcValue, lastRMFurnaces, currentSecond, maxStacks = 0, 0, 0, 0, 6912*#targets

function initiate()
    monitor.setTextScale(1.5)
    while true do
        loop()
        currentSecond = currentSecond + 1
        sleep(1)
    end
end

function loop()
    -- Every 2 Seconds to reduce amount of sensor calls and potentially limit lag
    if ( currentSecond % 2 == 0 ) then
        -- Probe Sensors
        currentRMFurnaces = 0
        for index, target in ipairs(targets) do
            local targetDetails = prox.getTargetDetails(target)
            if ( targetDetails and targetDetails.Name == 'Crystal Chest' ) then
                for slot, item in ipairs(targetDetails.Slots) do
                    if ( item.Name == 'Red Matter Furnace') then
                        currentRMFurnaces = currentRMFurnaces + item.Size
                    end
                end
            end
        end

        -- Calculate EMC Per Second
        local emcPerSecond = math.floor((currentRMFurnaces-lastRMFurnaces) * 10059784)/5
        local rmCountString = 'Furnaces: '..(currentRMFurnaces > 64 and math.floor(currentRMFurnaces / 64)..' stacks & ' or '')..(currentRMFurnaces % 64)..' items'
        local storedEMC = currentRMFurnaces * 10059784

        -- Calculate percentage
        local percentageStored = math.ceil((currentRMFurnaces/maxStacks) * 100) .. '%'

        -- Store biggest number of EMC incase of Zero Per Second.
        trueEmcValue = (emcPerSecond ~= 0 and emcPerSecond or trueEmcValue)

        monitor.clear()
        monitor.setCursorPos(2,3)
        monitor.write('EMC Rate: '..trueEmcValue..' per/s')
        monitor.setCursorPos(2,4)
        monitor.write(rmCountString)
        monitor.setCursorPos(2,5)
        monitor.write('Stored EMC: '..storedEMC)
        monitor.setCursorPos(2,6)
        monitor.write('Percentage: '..percentageStored)
        lastRMFurnaces = currentRMFurnaces
    end
end

initiate()