ModularMultiBlockReactor

num = 1
screennum = 1
local MaxOutput = 120



screen = peripheral.wrap("monitor_"..screennum)
speaker = peripheral.wrap("top")
rednet.open("front")
local Temp = 0
Output = 0
Power = 0

function clear()
	screen.setBackgroundColor(32768)
	screen.clear()
	screen.setCursorPos(1,1)
end

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

function drawProg(x, y, 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)
end

function OutputText()
		screen.setBackgroundColor(32768)
		screen.setCursorPos(2,6)
		screen.write(math.floor(Output * 100) / 100)
end

function powerOn()
	for i = 0, MaxOutput do
		drawProg(0,7, 20, 10, i, MaxOutput, 8192, 32768)
		Output = i
		OutputText()
		sleep(0.001)
	end
end

function powerOff()
	for i = 0, MaxOutput do
		drawProg(0,7, 20, 10, MaxOutput-i, MaxOutput, 16384, 32768)
		Output = MaxOutput-i
		OutputText()
		sleep(0.001)
	end
	clear()
end

function updateStats(Status)
	screen.setCursorPos(2,1)
	screen.write(Status)
	screen.setCursorPos(2,3)
	screen.write("TEMP")
	screen.setCursorPos(2,4)
	screen.write(Temp)
end

function updateScreen(Power)
	if Power == "ON" then
		clear()
		updateStats("ON")
		powerOn()
	elseif Power == "OFF" then
		clear()
		updateStats("OFF")
		powerOff()
	end
end

clear()

while true do
    local id, message = rednet.receive()
    if message == "poweronreactor_"..num and Power == 0 then
		rednet.broadcast("Reactor"..num.." is Starting")
        redstone.setOutput("bottom", true)
		speaker.playSound("minecraft:ui.button.click")
		updateScreen("ON")
		Power = 1
        rednet.broadcast("Reactor"..num.." has Started")
    elseif message == "poweroffreactor_"..num and Power == 1 then
		rednet.broadcast("Reactor"..num.." is Shutting Down")
        redstone.setOutput("bottom", false)
		speaker.playSound("minecraft:ui.button.click")
		updateScreen("OFF")
		Power = 0
        rednet.broadcast("Reactor"..num.." is Offline")
    end
    sleep(0.1)
end