display

local monitor = peripheral.wrap("right")
local modem = peripheral.wrap("back")
modem.open(1)
local w,h = monitor.getSize()
local number_of_liquids = 1
local columns_per_liquid = w/number_of_liquids
local timesgraphed = 0
local liquids = {water}
while true do
for i=1,number_of_liquids,1 do
  modem.transmit(i,i,"callback")
  local event, modemSide, SenderChannel, replyChannel, message, senderDistance = os.pullEvent("modem_message")
  liquids[SenderChannel] = message

monitor.setBackgroundColor(colors.white)

event, modemSide, senderChannel, replyChannel, message, senderDistance = os.pullEvent("modem_message")
monitor.clear()
sleep(.5)
end
function graphliquid(amount,max,color)
  local ratio = amount/max
  local pixelheight = ratio*h
  local cursorstart = (timesgraphed*columns_per_liquid)+1
  timesgraphed = timesgraphed + 1
  for i = h,((h+1)-pixelheight),-1 do
    monitor.setTextColor(colors.white)
    monitor.setBackgroundColor(color)
    monitor.setCursorPos(cursorstart,i)
    monitor.write(string.rep(" ",columns_per_liquid))
  end
end