ComputerCraft Kangaroo

--[[ CC 1.42 Printers
example program

by GopherAtl. Do whatever you want with it. Heck, you can even take
credit for this one if you really want, I don't care.
--]]

--declare variable out here, let it default to nil
local printer

--search sides for the printer
--for each side - redstone.sides() returns a table listing all of them
for _,side in pairs(redstone.getSides()) do
  --check if it's a printer...
  if peripheral.getType(side)=="printer" then
    --it is! wrap it and break out of the loop
    printer=peripheral.wrap(side)
    break
  end
end


--check if you got one
if printer==nil then
  --nope! exit out of the program
  error("No printer detected!")
end


--repeat while there is no ink
if printer.getInkLevel()==0 then
  print("No ink! Add some ink to the left slot to continue...")

  while printer.getInkLevel()==0 do
    os.sleep(.5)
  end
end


--do same for paper
if printer.getPaperLevel()==0 then
  print("No paper! Add some paper to the top slots to continue...")

  while printer.getPaperLevel()==0 do
    os.sleep(.5)
  end
end


--start the page
printer.newPage()

--write some text

printer.write("        |\\._")
printer.setCursorPos(1,2)
printer.write("        |   66__")
printer.setCursorPos(1,3)
printer.write("         \    _.P")
printer.setCursorPos(1,4)
printer.write("     ,    ') (")
printer.setCursorPos(1,5)
printer.write("     )\   // __\__")
printer.setCursorPos(1,6)
printer.write("    // //  // -._);_)")
printer.setCursorPos(1,7)
printer.write("   |  '\//  \ __|\ ")
printer.setCursorPos(1,8)
printer.write("    \  ;    )  // )")
printer.setCursorPos(1,9)
printer.write("     '\|   //__// //__   ")
printer.setCursorPos(1,10)
printer.write("       '\______)___)")


--name the page
printer.setPageTitle("Kangaroo")

--complete the printing, this will drop the page into the printer's output!
printer.endPage()