Mall Billboard Program - Condemned Network

--[[
This program is designed for use with Computercraft
This is a modern version of the billboard program designed for newer versions of Minecraft (above 1.6.4)
Custom version for: The Condemned Network - The 1.12 Pack player mall
Billboard Specs: 8 blocks wide by 5 blocks tall advanced monitor

Programmed by Rolcam
You can copy/modify this program as you wish, just please leave the documentation intact

]]--

-- Time variable for how long (in seconds) to display each sign
t = 5

--Redirects setup/install output to monitor (for artistic effect)
tSides = {"left","right","bottom","top","front","back"}

for i = 1, #tSides do
  monitor = peripheral.wrap(tSides[i])
  if monitor then
        side = tSides[i]
        break
  end
end
--Prevents program termination
os.pullEvent = os.pullEventRaw

local currentTerm = term.current()


function adText()
    term.setTextColor(colors.orange)
    term.setBackgroundColor(colors.black)
    term.setCursorPos(2,19)
    term.write("       Your Ad Here!       ")
    term.setCursorPos(2,20)
    term.write("Contact Rolcam for details!")
    term.setTextColor(colors.white)
    term.setCursorPos(1,1)
end

if not fs.exists("boot") then
    term.setTextColor(colors.red)
    print("Warning: boot image missing!")
    print("Downloading image...")
    term.setTextColor(colors.white)
    shell.run("pastebin get edscQ8zU boot")
    term.setTextColor(colors.green)
    print("Boot image downloaded.")
    term.setTextColor(colors.white)
else
    term.setTextColor(colors.green)
    print("boot image found!")
    term.setTextColor(colors.white)
end
img = paintutils.loadImage("boot")

term.redirect(monitor)
paintutils.drawImage(img, 1,1)
term.redirect(currentTerm)
term.setBackgroundColor(colors.blue)
term.setTextColor(colors.orange)
term.clear()
print("Rolcam's Billboard Program V3")
term.setTextColor(colors.white)
print(" ")
print("Beginning system check...")
--Checks for missing signs and labels itself
print("Checking signs...")

if not fs.exists("image") then
    term.setTextColor(colors.red)
    print("Warning: advert image missing!")
    term.setTextColor(colors.white)
    print("Downloading image...")
    shell.run("pastebin get EZDcTC35 image")
    term.setTextColor(colors.green)
    print("File downloaded")
    term.setTextColor(colors.white)
else
    term.setTextColor(colors.green)
    print("beach image found!")
    term.setTextColor(colors.white)
end
adSign = paintutils.loadImage("image")

if not fs.exists("mall") then
    term.setTextColor(colors.red)
    print("Warning: Mall sign is missing!")
    term.setTextColor(colors.white)
    print("Downloading image...")
    shell.run("pastebin get k1dsWddA mall")
    term.setTextColor(colors.green)
    print("File downloaded")
    term.setTextColor(colors.white)
else
    term.setTextColor(colors.green)
    print("Mall sign image found!")
    term.setTextColor(colors.white)
end
if not fs.exists("bar") then
    term.setTextColor(colors.red)
    print("Warning: bar image missing!")
    term.setTextColor(colors.white)
    print("Downloading image...")
    shell.run("pastebin get T2r2qxNj bar")
    term.setTextColor(colors.green)
    print("File downloaded")
    term.setTextColor(colors.white)
else
    term.setTextColor(colors.green)
    print("bar image found!")
    term.setTextColor(colors.white)
end
bar = paintutils.loadImage("bar")
mallImg = paintutils.loadImage("mall")

print("Sign check completed!")
print("Checking for computer label")
if os.getComputerLabel() == nil then
    term.setTextColor(colors.red)
    print("Warning: Computer is not labeled!")
    print("Labelling Computer")
    os.setComputerLabel("Billboard Comp")
    term.setTextColor(colors.white)
else
    term.setTextColor(colors.green)
    print("Computer is already labelled. Great!")
    term.setTextColor(colors.white)
end
print("System Check Completed!")
sleep(1)
print("Starting Billboard!")
term.redirect(monitor)

mallImg = paintutils.loadImage("mall")

while true do
    paintutils.drawImage(mallImg, 1, 1)
    sleep(15)
    paintutils.drawImage(adSign, 1, 1)
    sleep(t)
    paintutils.drawImage(bar, 1, 1)
    sleep(t)
end