View difference between Paste ID: WJuZjJzr and YM54eQnQ

 -- Change value between 0..1.
 -- 1 would be field full of mines, and 0 empty
 -- or provide it with launch parameter
 local DIFFICULTY = 0.13
 local SCALE = 1.5 -- text/grid scaling
 
 local mList = {"top","right","left","bottom","back","front"}
 local mon = peripheral.wrap(mList[1])
 local i=2
 -- Try all sides of computer to find
 -- where monitor is
 while (mon == nil) and (i <= #mList) do
   mon = peripheral.wrap(mList[i])
   i = i+1
 end
 if mon == nil then
   print("You need to attach some monitors")
   return
-mon.setTextScale(1.5)
+
 mon.setTextScale(SCALE)
 local w, h = mon.getSize()
 local arg = {...}
 if #arg > 0 then
   DIFFICULTY = 0+arg[1]
 end
 if DIFFICULTY > 0.99 then
   DIFFICULTY = 0.99
 elseif DIFFICULTY < 1.5/(w*h) then
   DIFFICULTY = 1.5/(w*h)
 end
 math.randomseed(os.time())
 
 function time(s)
   return string.format("%ds",s)
 end
 
 function game()
   local g = {}
   local b
   local mines = 0
   local clears = 0
   local start = os.clock()
   mon.setTextColor(colors.white)
 
   function stepOn(x, y)
     if g[x][y] ~= 1 then
       return
     end
     local sum = 0
     clears = clears-1
     g[x][y] = 0
     for i=math.max(1,x-1),math.min(w,x+1) do
       for j=math.max(1,y-1),math.min(h,y+1) do
         if math.abs(g[i][j]) == 2 then
           sum = sum+1
         end
       end
     end
     mon.setCursorPos(x, y)
     if sum > 0 then
       local color
       if sum == 1 then
         color = colors.green
       elseif sum == 2 then
         color = colors.yellow
       else
         color = colors.red
       end
       mon.setTextColor(color)
       mon.write(string.format("%d",sum))
     else
       mon.write(" ")
       for i=math.max(1,x-1),math.min(w,x+1) do
         for j=math.max(1,y-1),math.min(h,y+1) do
           if (i ~= x) or (j ~= y) then
             stepOn(i, j)
           end
         end
       end
     end
   end
 
   mon.setBackgroundColor(colors.lightGray)
   mon.clear()
   for i=1,w do
     g[i] = {}
     for j=1,h do
       mon.setCursorPos(i,j)
       g[i][j] = 1
       mon.write("#")
     end
   end
   mines = math.floor(w*h*DIFFICULTY)
   clears = w*h-mines
   for n=1,mines do
     repeat
       i = math.floor(math.random()*w)+1
       j = math.floor(math.random()*h)+1
     until (g[i][j] == 1)
     g[i][j] = 2
   end
   mon.setBackgroundColor(colors.black)
 
   -- Game loop
   while clears > 0 do
     local event, side, x, y = os.pullEvent("monitor_touch")
     if event ~= nil then
       mon.setCursorPos(x,y)
       if g[x][y] == 2 then
         mon.setTextColor(colors.red)
         mon.write("X")
         print("You hit a mine, HAHAHA!")
         print("There were "..clears.." empty spots left")
         return
       else
         stepOn(x, y)
       end
     end
 
     sleep(0)
   end
   start = os.clock()-start
   mon.setTextColor(colors.green)
   print("Well done!")
   print("Time: "..time(start))
   for i=1,w do
     for j=1,h do
       mon.setCursorPos(i, j)
       if g[i][j] == 2 then
         mon.write("O")
       else
         mon.write(" ")
       end
     end
   end
   mon.setTextColor(colors.yellow)
   mon.setCursorPos(w/2-4, h/2+1)
   mon.write(" Well done! ")
   mon.setCursorPos(1, 1)
   mon.write("Time: "..time(start))
 end
 
 -- Program starts
 print("Hold Ctrl+T to terminate if stuck\n")
 local k
 while true do
   game()
   print("\nNew game? [y/n]: ")
   k = read()
   if k ~= "y" then
     break
   end
 end
 print("Bye bye...")