View difference between Paste ID: xmESU1aq and DrLHECwL

 --[[
 Changes:
 Turtles no longer monitor how many rows they've gone forward (no more rowsProgressed file)
 Master turtle simply waits for (numberSlaves) unique turtles to send messages saying
 they are ready and waiting. Slave turtles repeatedly send ready and waiting signals to prevent
 the sync problems we were having before.
 --]]
 
 -- Number of neighbouring turtles
 numberSlaves = 8
 
 -- Open up modem to receive wireless broadcasts
 rednet.open("right")
 
 -- Wait until neighbouring turtles are ready
 function waitForSlaves()
   local IDsOfWaitingTurtles = {}
   local remoteTurtleID, rednetMessage
   local newTurtleIsReportingReady
 
   -- Wait for (numberNeighbours) unique turtles to send ready messages
   repeat
     remoteTurtleID, rednetMessage, _ = rednet.receive()
 
     if rednetMessage == "I am ready and waiting master" then
       -- Check if turtle has replied already
       newTurtleIsReportingReady = true
 
       for i=1, table.getn(IDsOfWaitingTurtles) do
         if remoteTurtleID == IDsOfWaitingTurtles[i] then
           newTurtleIsReportingReady = false
           break
         end
       end
 
       if newTurtleIsReportingReady then
         table.insert(IDsOfWaitingTurtles, remoteTurtleID)
       end
     end
   until table.getn(IDsOfWaitingTurtles) >= numberSlaves
 
   rednet.broadcast("You are authorised to proceed")
 end
 
 bool=true
 
 while bool==true do
   if rs.getInput("back", true) then
       print ("Waiting")
       sleep (1)
   else
     print ("Let's Roll!")
     bool=false
   end
 end
 
 X=66
 
 
 
   print ("---------------------------")
   print ("Starting World Eating Scripts!")
   print ("---------------------------")
 
   turtle.dig()
 
   while not turtle.forward() do
     turtle.attack()
   end
 
   while true do
 
 
 
 
 
 
 ore = false
 
 
 
       for c = 1, X do
 	turtle.select(2)
 	ore = turtle.compareDown()
 	if ore == true then
 
 		for t = 1, c do
 			turtle.digUp()
-			while not turtle.up()
+			while not turtle.up() do
 				turtle.digUp()
 				turtle.attackUp()
 			end
 		end
 	else
 
         turtle.dig()
         turtle.digDown()
        		 while not turtle.down() do
           		turtle.attackDown()
        		 end
 	end
       end
 
 if ore == false then
       for d = 1, X do
         turtle.dig()
         turtle.digUp()
         while not turtle.up() do
           turtle.attackUp()
         end
 else
 end
 
 
 
 
 
 
 
 
 
 
       for r = 1, 2 do
         turtle.dig()
         while not turtle.forward() do
           turtle.attack()
         end
 
       end
 
     print ("Dropping off items")
 
         turtle.dig()
         turtle.attack()
 
 
     turtle.select(1)
     while not turtle.place() do
       turtle.select(3)
       turtle.attack()
       turtle.select(1)
     end
 
     for dropslot = 3, 16 do
       turtle.select(dropslot)
       turtle.drop()
     end
 
     waitForSlaves()
 
     turtle.select(1)
 
     turtle.dig()
 
     turtle.select(3)
 
   end
 end