printer_cl.lua

local prt = peripheral.find("printer")
local args = {...}

local data = {fs.open("/printer/data.lua","r")}
if data[1]==nil then print("data.json cannot be opened: "..data[2]) end
local setup = textutils.unserialise(data[1].readAll())
data[1].close()

peripheral.call("minecraft:chest_"..setup.chest_paper,"pushItems","minecraft:hopper_"..setup.printer_paper,1,1)
while peripheral.call("minecraft:chest_"..(setup.chests_ink_start+math.random(1,15)),"pushItems","minecraft:hopper_"..setup.printer_ink,1,1)==0 do sleep(0.05) end
local file
if args[1]==nil then
    file = "/printer/canvas.nfp"
else
    file = shell.dir()..args[1]
end
while not prt.newPage() do sleep(0.05) end
if not fs.exists(file) then
    local size = {prt.getPageSize()}
    print(size[1],size[2])
    local f = fs.open(file,"w")
    for i=1,size[2] do
        for i=1,size[1] do
            f.write("0")
        end
        f.write("\n")
    end
    f.close()
end
prt.endPage()
shell.run("/printer/rspaint "..file)
print("Printing 0/15 (0)")
for i=1,15 do
    local f = fs.open(file,"r")
    write("Waiting for paper")
    while peripheral.call("minecraft:chest_"..setup.printer_output,"pushItems","minecraft:hopper_"..setup.printer_paper,1,1)==0 do
        sleep(0.05)
        write(".")
    end
    print(" Done")
    peripheral.call("minecraft:chest_"..setup.chests_ink_start+i,"pushItems","minecraft:hopper_"..setup.printer_ink,1,1)
    write("Waiting for ink")
    while not prt.newPage() do
        sleep(0.05)
        write(".")
    end
    print(" Done")
    local color_char = colors.toBlit(2^i)
    b = f.read(1)
    while b~=nil do
        if b~="\n" then
            if b==color_char then
                prt.write("\x7f")
            else
                local pos = {prt.getCursorPos()}
                prt.setCursorPos(pos[1]+1,pos[2])
            end
        else
            local pos = {prt.getCursorPos()}
            prt.setCursorPos(1,pos[2]+1)
        end
        b = f.read(1)
    end
    prt.endPage()
    f.close()
    print("Printing "..i.."/15 ("..color_char..")")
end
print("Done!")
term.setTextColor(colors.red)
if prt.getInkLevel() > 0 then
    print("Uh oh! Something didn't print properly and there's still ink in the printer. Please clean it out before using the machine again.")
end
if prt.getPaperLevel() > 0 then
    print("Uh oh! Something didn't print properly and there's still paper in the printer. Please clean it out before using the machine again.")
end
term.setTextColor(colors.white)
print("Press the button to restart")