startup

--Global variables
IsOnFlag = true
mouseWidth = 0
mouseHeight = 0
ColorMix = 0
------------------
--initialize
monitor = peripheral.wrap("top")
monitor.clear()
monitor.setCursorPos(1,1)
reactor = peripheral.wrap("back")

--Write On/Off button
function WriteButtons(IsOn)
    monitor.setTextColor(colors.white)
    if IsOn == true then
        monitor.setBackgroundColour((colours.lime))
        monitor.setCursorPos(24,2)
        monitor.write("     ")
        monitor.setCursorPos(24,3)
        monitor.write(" ON  ")
        monitor.setCursorPos(24,4)
        monitor.write("     ")
    else
        monitor.setBackgroundColour((colours.red))
        monitor.setCursorPos(24,2)
        monitor.write("     ")
        monitor.setCursorPos(24,3)
        monitor.write(" OFF ")
        monitor.setCursorPos(24,4)
        monitor.write("     ")
    end
    monitor.setBackgroundColour((colours.black))
end

--Check mouse to button click
function checkClickPosition()
  if mouseWidth >= 24 and mouseWidth <= 28 and mouseHeight >= 2 and mouseHeight <= 4 then
    if IsOnFlag == true then
      IsOnFlag = false
    else
      IsOnFlag = true
    end

    WriteButtons(IsOnFlag)
    UpdateSensors()
  end
end

--
function DrawTextLine(State, Color, Line, TextH, TextOk, TextFail)
  monitor.setCursorPos(1,Line)
  monitor.setTextColor(colors.white)
  monitor.write(TextH)
  monitor.setCursorPos(14,Line)
  monitor.setTextColor(Color)
  if State then
    monitor.write(TextOk)
  else
    monitor.write(TextFail)
  end
end

--
function DrawValueLine(value, Color, Line, TextH)
  monitor.setCursorPos(1,Line)
  monitor.setTextColor(colors.white)
  monitor.write(TextH)
  monitor.setCursorPos(14,Line)
  monitor.setTextColor(Color)
  val = math.floor(value)
  monitor.write(val)
end

--draw data from redstone channels (sensors)
function UpdateSensors()
  monitor.setBackgroundColor(colours.black)

  S_Status = reactor.getActive()

  EnergyLevel = reactor.getEnergyStored()

  PowerPercent = (EnergyLevel / 10000000) * 100
  PowerPercent = math.floor(PowerPercent)

  --RodsLevel = PowerPercent
  RodsLevel = 100

  ProduceLevel = reactor.getEnergyProducedLastTick()
  ProducePercent = math.floor((ProduceLevel / 3960) * 100)

  Coolant = reactor.getCoolantAmount()
  HotFluid = reactor.getHotFluidAmount()

  if Coolant < 1000 then
    RodsLevel = 100
  elseif HotFluid > 9000 then
    RodsLevel = 100
  else
    RodsLevel = 110 - math.floor(Coolant / 98)
  end

  if RodsLevel < 0 then
    RodsLevel = 0
  end

  DrawTextLine(S_Status  , colors.green  , 1, "STATUS:"      , " ON " , " OFF ")
  --DrawValueLine(PowerPercent, colors.red, 2,  "ENERGY:")
  --DrawValueLine(ProducePercent, colors.blue, 3, "POWER:")
  DrawValueLine(100-RodsLevel, colors.yellow, 2, "RODS: ")
  DrawValueLine(Coolant, colors.white, 3, "COOL:  ")
  DrawValueLine(HotFluid, colors.white, 4, "HOT:   ")

  reactor.setAllControlRodLevels(RodsLevel)

  if IsOnFlag then
    reactor.setActive(true)
  else
    reactor.setActive(false)
  end

  WriteButtons(IsOnFlag)
end

w,h=monitor.getSize()
print(w)
print(h)

checkClickPosition()
WriteButtons(false)
UpdateSensors()

repeat
    local myTimer = os.startTimer(0.25)

    event,p1,p2,p3 = os.pullEvent()
    if event=="monitor_touch" then
        mouseWidth = p2 -- sets mouseWidth
        mouseHeight = p3 -- and mouseHeight
        checkClickPosition() -- this runs our function
    end

  if event=="timer" then
    UpdateSensors()
  end
until event=="char" and p1==("q")