ly2

-- pastebin get Q5RsfX0A ly2

local util = require("util")

function go()
   gridStep = 4
   gridSize = 3
   while true do
      travel()

      if shouldRestock() then
     restock()
      end
      print("all done, sleeping...")
      for i = 1, 12 do
     os.sleep(10)
     print("sleeping... " .. i .. "/12")
      end
   end
end


function travel()
   local cb = turtle.suck
   local goRight = true
   for j=1, gridSize do
      print("column " .. tostring(j))
      for i=1, gridSize do
     doCell()
     util.moveForward(1)
      end
      if goRight then
     util.turnRight()
     util.moveForward(3, cb)
     util.turnRight()
     util.moveForward(1)
     goRight = false
      else
     util.turnLeft()
     util.moveForward(3, cb)
     util.turnLeft()
     util.moveForward(1, cb)
     goRight = true
      end
   end
   util.moveForward(8, cb)
   util.turnRight()
   util.moveForward(9, cb)
   util.turnRight()
end


function doCell()
   -- turtle ends up on the OTHER side of the cell
   local _, insp = turtle.inspect()

   if insp ~= nil then
      if (insp.name == "minecraft:log" or insp.name == "traverse:fir_log") then
     chopTree()
      elseif insp.name == "minecraft:sapling" or insp.name == "traverse:fir_sapling" then
     util.moveAround(turtle.suck)
      else
     if selectSapling() then
        turtle.place()
     end
     util.moveAround(turtle.suck)
      end

   end



end


function chopTree()
   turtle.dig()
   util.moveForward(1)
   while turtle.digUp() do
      turtle.up()
   end
   while turtle.down() do
      turtle.dig()
   end
   util.moveForward(1)

   if selectSapling() then
      util.turnAround()
      turtle.place()
      util.turnAround()
   end

end

function selectSapling()
   for i = 1,16 do
      local detail = turtle.getItemDetail(i)
      if detail and (detail.name == "minecraft:sapling" or detail.name == "traverse:fir_sapling")  then
     turtle.select(i)
     return i
      end
   end
   print("did not find sapling")
   return false
end

function shouldRestock()
   return turtle.getFuelLevel() < 100 or isFull()
end

function dropWood()
   for i=1,16 do
      local detail = turtle.getItemDetail(i)
      if detail and (detail.name == "minecraft:log" or detail.name == "traverse:fir_log") then
     turtle.select(i)
     turtle.drop()
      end
   end
end

function refuelPls()
   local s = turtle.suck()
   if s then
      useCoalAndDrop()
   end
end

function isFull()
   turtle.select(15)
   local detail = turtle.getItemDetail(15)
   if detail and detail.count > 0 then
      return true
   end
   return false
end

function useCoalAndDrop()
   local cIndex = -1
   for i=1,16 do
      local detail = turtle.getItemDetail(i)
      if detail and detail.name == "minecraft:coal" then
     cIndex = i
      end
   end

   if cIndex == -1 then return end

   turtle.select(cIndex)
   turtle.refuel(3)
   turtle.drop()
end

function restock()
   util.turnAround()
   util.moveForward(1)
   dropWood()
   util.turnRight()
   refuelPls()
   util.turnRight()
   util.moveForward(1)
end


go()