main computer 1

-- Replace with the appropriate modem address and client computer ID
local modemAddress = "left"
local clientComputerID = 26
local monitor = peripheral.wrap("back")

function drawProgressBar(x, y, percentage)
    monitor.setCursorPos(x, y)
    monitor.setBackgroundColor(colors.white)
    monitor.clearRow(y)
    monitor.setBackgroundColor(colors.blue)
    local width = math.floor(percentage / 100 * (monitor.getSize()))
    monitor.setCursorPos(x, y)
    monitor.write(string.rep(" ", width))
    monitor.setBackgroundColor(colors.white)
end

rednet.open(modemAddress)

while true do
    local senderID, message = rednet.receive()
    if senderID == clientComputerID then
        monitor.clear()
        drawProgressBar(1, 1, message)
        monitor.setCursorPos(1, 2)
        monitor.setTextColor(colors.black)
        monitor.write("RF: " .. message .. "%")
    end
end