View difference between Paste ID: uzK5V1Kv and fdbvGdAA

 local monitor
 local sides = {"left", "right", "top", "bottom", "back", "front"}
 local str = "Hello, world! "
 local pos = 1
 local speedStep = 0.5
 local speed = 2
 local maxSpeed = 10
 local running = false
 local keys = {
     backspace=14,
     enter=28,
     f1=59,
     f3=61,
     leftArrow=203,
     rightArrow=205,
 }
 local locked = false
 local password = ""
 local correct_password = ""
 
 local banner = {
 " ___ ___                                          ",
 "|   Y   |.---.-..----..-----..--.--..-----..-----.",
 "|.      ||  _  ||   _||  _  ||  |  ||  -__||  -__|",
 "|. \\_/  ||___._||__|  |__   ||_____||_____||_____|",
-"|:  |   |                |__|                     ",
+"|:  |   |                |__|                      ",
-"|::.|:. |   v1.1                 by zapwow        ",
+"|::.|:. |   v1.2                 by MrJohnDowe     ",
 "'--- ---'   "
 }
 
 function setup()
     -- prevent user from terminating
     os.pullEvent = os.pullEventRaw
 
     -- attempt to load the string from disk
     local file = io.open("marquee-text", "r")
     if file then
         str = file:read("*l") or str
         speed = tonumber(file:read("*l")) or speed
         correct_password = file:read("*l") or correct_password
         if string.len(correct_password) > 0 then
             -- the password was set at some point, lock automatically
             locked = true
         end
         file:close()
     end
 
     for i,side in ipairs(sides) do
         if peripheral.getType(side) == "monitor" then
             monitor = peripheral.wrap(side)
             monitor.setTextScale(5)
             running = true
             return
         end
     end
     print("No monitor attached")
     error()
 end
 
 function draw()
     -- draw the string offset by pos
     -- increment pos
     -- when pos > str len, pos = 1
     monitor.clear()
     monitor.setCursorPos(1,1)
 
     if string.len(str) == 0 then
         return
     end
 
     -- pad the str to fit the screen
     local _str = str
     local len, height = monitor.getSize()
     while string.len(_str) < len do
         _str = _str .. _str
     end
 
     local output = string.sub(_str, pos) .. string.sub(_str, 0, pos-1)
     monitor.write(output)
 end
 
 function update()
     pos = pos + 1
     if pos > string.len(str) then
         pos = 1
     end
 end
 
 function marquee()
     while running do
         draw()
         if speed > 0 then
             update()
             sleep(1/speed)
         else
             sleep(0.5)
         end
     end
 end
 
 function drawGUI()
     --always draw the banner
     term.clear()
     for i,v in ipairs(banner) do
         term.setCursorPos(1,i)
         term.write(v)
     end
 
     if locked then
         drawLockedGUI()
     else
         drawUnlockedGUI()
     end
 end
 
 function drawLockedGUI()
     local line = #banner + 2
     term.setCursorPos(1,line)
     if string.len(correct_password) == 0 then
         term.write("  Set password: ")
     else
         term.write("  Password: ")
     end
     term.write(string.rep('*', string.len(password)))
 end
 
 function drawUnlockedGUI()
     local line = #banner + 2
 
     -- lock
     term.setCursorPos(1,line)
     term.write("  To lock terminal, press F1")
 
     -- exit
     line = line + 1
     term.setCursorPos(1,line)
     term.write("  To quit, press F3")
 
     -- speed gui
     line = line + 2
     term.setCursorPos(1,line)
     term.write(
         "  Speed: <" ..
         string.rep('-', speed/speedStep) ..
         'X' ..
         string.rep('-', (maxSpeed - speed)/speedStep) ..
         "> " ..
         string.format("%.1f", speed) ..
         " steps/sec"
     )
 
     -- text
     line = line + 2
     term.setCursorPos(1,line)
     term.write(
         "  Text: " ..
         str
     )
     term.setCursorBlink(true)
 end
 
 function save()
     local file = io.open("marquee-text", "w")
     if file then
         file:write(str)
         file:write("\n")
         file:write(speed)
         file:write("\n")
         file:write(password)
         file:close()
     end
 end
 
 function gui()
     drawGUI()
     while running do
         local evt, p1, p2, p3 = os.pullEvent()
         if evt == "char" then
             if locked then
                 -- read the password
                 password = password .. p1
             else
                 str = str .. p1
                 save()
             end
         elseif evt == "key" then
             if p1 == keys["backspace"] and not locked then
                 str = string.sub(str, 1, string.len(str)-1)
                 save()
             elseif p1 == keys["leftArrow"] and not locked then
                 speed = math.max(speed-speedStep, 0)
                 save()
             elseif p1 == keys["rightArrow"] and not locked then
                 speed = math.min(speed+speedStep, maxSpeed)
                 save()
             elseif p1 == keys["f1"] and not locked then
                 locked = true
             elseif p1 == keys["f3"] and not locked then
                 term.clear()
                 term.setCursorPos(1,1)
                 return true
             elseif p1 == keys["enter"] and locked then
                 if string.len(correct_password) == 0 then
                     correct_password = password
                     save()
                 else
                     if password == correct_password then
                         locked = false
                     end
                 end
                 password = ""
             end
         end
         drawGUI()
     end
 end
 
 
 setup()
 parallel.waitForAny(marquee, gui)