Liquicrafter Pulser

--[[
Redstone Pulser for Liquicrafter
by Fooman
v1.0
April 20, 2013
]]--
local iter
local w,h = term.getSize()


--Delay Between Pulses
local mindelay = 0.2
--Side to output signal
local outputside = "bottom"
--Timer of success screen before program reboots
local reboottimer = 60


function pulse()
    rs.setOutput(tostring(outputside), true)
    sleep(0.1)
    rs.setOutput(tostring(outputside), false)
    sleep(mindelay)
end
--Pretty Functions
local function printCentered(str,ypos)
    term.setCursorPos(w/2 - #str/2, ypos)
    term.write(str)
end
local function printRight(str,ypos)
    term.setCursorPos(w - #str, ypos)
    term.write(str)
end
local function printLeft(str,ypos)
    term.setCursorPos(1 , ypos)
    term.write(str)
end
function drawTerminalBG()
    term.clear()
    printCentered(string.rep("-",w),1)
    printCentered("LiquiCrafter Control System", 2)
    printCentered(string.rep("-",w),3)
    printLeft("|",2)
    printRight("|",2)
        local th = 4
    for th=4,h-1 do
        printLeft("|",th)
        printRight("|",th)
    end
    printCentered("How many items would you like to craft?", 7)
    printCentered(string.rep("-",w),h)
    term.setCursorPos(w/2-1,9)
end

function drawTerminalProgress(prog)
    printCentered("Currently Crafting:", 11)
    term.setCursorPos(1,12)
    term.clearLine()
    printLeft("|",12)
    printRight("|",12)
    printCentered(tostring(prog),12)
end

function drawTerminalSuccess()
    term.setCursorPos(1,7)
    term.clearLine()
    printLeft("|",7)
    printRight("|",7)
    term.setCursorPos(1,9)
    term.clearLine()
    printLeft("|",9)
    printRight("|",9)
    term.setCursorPos(1,11)
    term.clearLine()
    printLeft("|",11)
    printRight("|",11)
    term.setCursorPos(1,12)
    term.clearLine()
    printLeft("|",12)
    printRight("|",12)
    printCentered("Success! "..tostring(iter).." items crafted.", 10)
    printCentered("Press any key to continue.",12)
end

--Program Start
term.clear()
drawTerminalBG()
iter = tonumber(read())
--could use stuff to ensure good input

for i=1,iter do
    pulse()
    drawTerminalProgress(i)
end

--Finished
drawTerminalSuccess()
local autotimer = os.startTimer(tonumber(reboottimer))
local event = os.pullEvent()
if event == "key" then
    os.reboot()
elseif event == "timer" then
    os.reboot()
end