View difference between Paste ID: GJdyWE3P and Kz0HAwU3

 --[[Author: Sandbag
         Simple script that digs UPWARDS, the size you specify.
 
         TO DO:
                 -better fuel management
                 -chest dumps
 pastebin get Kz0HAwU3 digup
 
 ]]
 
 
 function checkfuel()
 local fuel=tonumber(turtle.getFuelLevel())
         if fuel < 70
         then
                 print("************")
                 print("*")
                 print("*")
                 print("* Need Fuel!!")
                 print("*")
                 print("*")
                 print("* Place Coal in slot 1")
                 print("************")
 
         end
 
 end
 
 checkfuel()
 
 io.write("Blocks in front of turtle? : ")
 y = tonumber(io.read())
 
 io.write("Blocks to the right? : ")
 x = tonumber(io.read())
 
 io.write("How High? : ")
 z = tonumber(io.read())
  print (x..", "..y..", "..z)
 
 function refueling()
         print("Refueling from slot 1")
         turtle.select(1)
         turtle.refuel()
 end
 
 
 
 function bore() --[dig up]
         local height = z-1
         while height > 0 do
                 turtle.digUp()
                 turtle.up(1)
                 height = height-1
         end
 
         for i = 1 , z-1 do
                 turtle.down()
         end
 end
 
 function ydig() --[dig out]
         local ydig = y
         while ydig > 0 do
                 bore()
                 if ydig > 1
 			then
 			if turtle.detect()
                         	then
                         	turtle.dig()
                 	end
 		end
                 turtle.forward(1)
                 ydig = ydig-1
         end
 
         for i = 1,y-1
 		do
                 	turtle.back()
         	end
 
 
 end
 
 
 function turn()
         turtle.turnRight()
         if turtle.detect()
                 then
                         turtle.dig()
                 end
         turtle.forward()
         turtle.turnLeft()
 end
 function xcavate() --[dig across]
         local xdig = tonumber(x)
 
         while xdig > 0 do
                 if tonumber(turtle.getFuelLevel()) < 70
                         then
                                 refueling()
                         end
                 ydig()
                 if xdig > 1
 			then
 				turn()
 			end
 
                 xdig = xdig-1
         end
 end
 
 xcavate()