startup

modem = peripheral.wrap("back")
mon = peripheral.wrap("left")
max = 2140000000000
monX, monY = mon.getSize()

modem.open(1)
modem.open(2)

print("listening")

function clear()
  mon.setBackgroundColor(colors.black)
  mon.clear()
  mon.setCursorPos(1,1)
  end

function drawText(x, y, text, color_txt, color_bg)
mon.setTextColor(color_txt)
mon.setBackgroundColor(color_bg)
mon.setCursorPos(x,y)
mon.write(text)
end

function drawLine(x, y, length, size, color_bar)
for yPos = y, y+size-1 do
  mon.setBackgroundColor(color_bar)
  mon.setCursorPos(x, yPos)
  mon.write(string.rep(" ", length))
  end
end

function drawProg(x, y, name, length, size, minVal, maxVal, color_bar, color_bg)
  drawLine(x, y, length, size, color_bg)
  local barSize = math.floor((minVal/maxVal)*length)
  drawLine(x, y, barSize, size, color_bar)
  local text = name .." ".. math.floor((minVal/maxVal)*100) .."%"
  drawText(monX/2-#text/2, y+size/2, text, colors.black, colors.green)
end

while true do
 event, modemSide, senderChannel, replyChannel, message, senderDistance = os.pullEvent("modem_message")
 local percent = math.floor((message/2140000000000)*100)
 term.clear()
 term.setCursorPos(1,1)
 print("Receiving Energy Core Information")
 mon.getSize()
 mon.setCursorPos(1,1)
 mon.setTextColor(colors.red)
 mon.setTextScale(1)
 mon.write("Current Power: " ..message)
 mon.setCursorPos(1,2)
 mon.write("Max Power: 2140000000000 RF")
 mon.setCursorPos(1,3)
 mon.write("Percent Full: " .. percent .."%")
 drawProg(2, 5, "Completed", monX-2, 3, percent, 100, colors.green, colors.red)
sleep(.2)
clear()
  end