View difference between Paste ID: fCFbFqWc and Dnsr2Fwq

-function upperLayers()
+local lastTurn = 1 -- direction of last turn (0=left, 1=right)
-  for i=1,13 do
+local size = 11 -- square size of farm
-    for j=1,12 do
+local woodSlot = 16 -- slot comparison wood is kept
 local maxStack = 4 -- maximum number of items to keep in slots
-      turtle.dig()
+local sleepTimer = 300 -- time between farmings in seconds
-      turtle.digDown()
+local x,y,z = gps.locate(5) -- turtle position on startup
-      turtle.forward()
+local hx,hy,hz = 306, 49, 130 -- turtle home position
 local debugMessages = true -- print debug messages
-    gimbal()
+local startTimer = 10 -- seconds to wait on startup before running
 
 --debug print function
 function db(mesg)
   if debugMessages then
     print(mesg)
-    turtle.turnRight()
+
-    lastTurn=1
+
 
-    turtle.turnLeft()
+--check where home log is and then face south
-    lastTurn=0
+function checkFacing()
   db("Checking facing")
   turtle.select(woodSlot)
   while not turtle.compare() do
     left()
   end
   db("Home log found")
   left()
 end
 
 function goHome()
   db("Going Home")
   x,y,z = gps.locate(5)
   db("hxyz="..hx..","..hy..","..hz)
   db(" xyz="..x..","..y..","..z)
   forward()
   nx,ny,nz = gps.locate(5)
   db("nxyz="..nx..","..ny..","..nz)
   --orient to west
   if nx > x then
     db("Looking east")
     left()
     left()
   elseif nz > z then
     db("Looking south")
     right()
   elseif nz < z then
     db("Looking north")
     left()
   end
   --go to home y level
   db("Going up")
   for i=1,hy-ny do
     up()
   end
   --go to home x position
   for i=1,nx-hx do
     forward()
   end
   right() --orient to north
   --go to home z position
   for i=1,nz-hz do
     forward()
   end
   --verify is home
   checkFacing()
 end
 
 function upperLayer()
   db("Running upperLayer")
   for i=1,size do
     for j=1,size-1 do
       forward()
       dig()
     end
     if i < size then
       gimbal()
     end
   end
   left()
   left()
   nextLayer()
 end
 
 function bottomLayer()
   db("Running bottomLayer")
   for i=1,size do
     for j=1,size-1 do
       forward()
       turtle.digUp()
       if turtle.compareDown() then
         plantSapling()
       end
     end
     if i < size then
       gimbal()
     end
   end
   dropExtras()
   --[[for i=1,6 do
     up()
   end
   right()
   for i=1,size-1 do
     forward()
     right()
     forward()
     left()
   end
   left()
   lastTurn = 1 ]]
   goHome()
 end
 
 -- turns the proper direction for next row
 function gimbal()
   --db("Gimbaling")
   if lastTurn == 0 then
     right()
     forward()
     dig()
     right()
   else
     left()
     forward()
     dig()
     left()
   end
   lastTurn = math.abs(lastTurn-1)
   --db("Set lastTurn to "..lastTurn)
 end
 
 -- breaks the block below and places a random sapling
 function plantSapling()
   db("Planting sapling")
   turtle.digDown()
   turtle.select(math.random(1,15))
   while turtle.placeDown() == false do
     turtle.select(math.random(1,15))
   end
   turtle.select(woodSlot)
 end
 
 -- drops excess inventory
 function dropExtras()
   db("dropping excess inventory")
   for i=1,16 do
     turtle.select(i)
     while turtle.getItemCount(i) > maxStack do
       turtle.dropDown(math.ceil(maxStack/4))
     end
   end
 end
 
 function nextLayer()
   db("Going down to next layer")
   for i=1,3 do
     down()
   end
 end
 
 function forward()
   turtle.dig()
   turtle.forward()
 end
 
 function down()
   turtle.digDown()
   turtle.down()
 end
 
 function up()
   turtle.digUp()
   turtle.up()
 end
 
 function dig()
   turtle.digUp()
   turtle.digDown()
 end
 
 function right()
   turtle.turnRight()
 end
 
 function left()
   turtle.turnLeft()
 end
 
 -- main program
 db("Waiting "..startTimer.." seconds to start")
 for i=startTimer,1,-1 do
   sleep(1)
   db(i)
 end
 -- checks if in home position then checks facing or goes home
 if x==hx and y==hy and z==hz then
   checkFacing()
 else
   goHome()
 end
 while true do
   print("Fuel level: "..turtle.getFuelLevel())
   turtle.select(woodSlot)
   for i=1,2 do
     upperLayer()
   end
   bottomLayer()
   db("Sleeping for "..sleepTimer.."s")
   for i=math.ceil(sleepTimer/30),1,-1 do
     db(i*30)
     sleep(30)
   end
 end