UOS Loader_

shell.run("clear")
if not fs.exists("preload") then
term.setTextColor(colors.red)
print("There has been a major corruption in the bootup program. The system will now halt to protect itself.")
sleep(100)
os.shutdown()
end
shell.run("delete preload")
if fs.exists("shutdown") and fs.exists("reboot") then
term.setTextColor(colors.lightBlue)
sleep(2)
local printcentred =
function(text)
local maxw, maxh = term.getSize()
local curx, cury = term.getCursorPos()
term.setCursorPos((maxw-#text)/2,cury)
term.write(text)
term.setCursorPos(curx,cury+1)
end
local maxw, maxh = term.getSize()
term.setCursorPos(1,math.floor(maxh/2))
printcentred("UltraOS")
printcentred("UltraComputing inc.")
sleep(1)
shell.run("clear")
term.setTextColor(colors.white)
print("_")
sleep(4)
shell.run("clear")
term.setTextColor(colors.yellow)
print("UDOS")
term.setTextColor(colors.white)
print("INIT(UOS1.8)")
sleep(0.25)
shell.run("clear")
print("Starting UltraOS from UDOS.")
sleep(0.5)
shell.run("clear")
print("Starting UltraOS from UDOS..")
sleep(0.5)
shell.run("clear")
print("Starting UltraOS from UDOS...")
sleep(0.5)
shell.run("clear")
print("Starting UltraOS from UDOS.")
sleep(0.5)
shell.run("clear")
print("Starting UltraOS from UDOS..")
sleep(0.5)
shell.run("clear")
print("Starting UltraOS from UDOS...")
sleep(0.5)
shell.run("clear")
print("Starting UltraOS from UDOS.")
sleep(0.5)
shell.run("clear")
print("Starting UltraOS from UDOS..")
sleep(1.1)
print("Initialising Reboot.UEXE")
sleep(0.2)
print("Initializing ROMDat.DIR")
sleep(0.3)
shell.run("clear")
term.setTextColor(colors.yellow)
print("UltraOS v1.8.3 - 25/3/18")
print("The 'Functions, Functions, Functions' Update!")
print("Type in 'uoscmds' for UOS-Specific commands!")
sleep(1)
term.setTextColor(colors.white)
else
local printcentred =
function(text)
local maxw, maxh = term.getSize()
local curx, cury = term.getCursorPos()
term.setCursorPos((maxw-#text)/2,cury)
term.write(text)
term.setCursorPos(curx,cury+1)
end
local maxw, maxh = term.getSize()
term.setCursorPos(1,math.floor(maxh/2))
term.setTextColor(colors.lightBlue)
printcentred("CCBios")
sleep(0.99)
printcentred("UltraOS Incorporated.")
while true do
term.setTextColor(colors.red)
sleep(2)
print("Could not find file (shutdown.UEXE) or (reboot.UEXE).")
print("System has halted.")
sleep(100)
os.shutdown()
end
end