Logger

local actx = 0
local acty = 0
local actz = 0
local actyaw = 0
local lastx = 0
local lasty = 0
local lastz = 0
local lastyaw = 0
local anwser = false
forwardcounter = 0
function items()
  for i = 1, 16 do
    actitem = turtle.getItemCount(i)
    allitems = allitems + actitem
  end
  return allitems
end
function createterm()
  term.setCursorPos(1,6)
  term.clearLine()
  print("------X Blocks left until end------")
  print("------X Fuellevel------")
end
function writeterm(msg,cursorlevel)
  cursorlevel = 6 + cursorlevel
  term.setCursorPos(1,cursorlevel)
  term.clearLine()
  print("------"..msg.."------")
end
function clearInv()
  for i = 1,16 do
    turtle.select(i)
    turtle.drop(turtle.getItemCount(i))
  end
  turtle.select(1)
end
function clearterm()
  term.clear()
  term.setCursorPos(1,1)
end
function usefuel(slotnum)
  turtle.select(slotnum)
  turtle.refuel(1)
end
function setPositionVars()
  lastx = actx
  lasty = acty
  lastz = actz
  lastyaw = actyaw
end
function turtledig()
   forwardcounter = forwardcounter + 1
   writeterm(turtle.getFuelLevel().." Fuellevel", 1)
   blocksleft = 0
   turtle.dig()
   if turtle.getItemCount(16) > 0 then
    setPositionVars()
    findBack(0,0,0,0,true)

   end
end
function turtledigup()
   forwardcounter = forwardcounter + 1
   writeterm(turtle.getFuelLevel().." Fuellevel", 1)
   blocksleft = 0
   turtle.digUp()
end
function turtledigdown()
   forwardcounter = forwardcounter + 1
   writeterm(turtle.getFuelLevel().." Fuellevel", 1)
   blocksleft = 0
   turtle.digDown()
  if turtle.getItemCount(16) > 0 then
    setPositionVars()
    findBack(0,0,0,0,true)
   end
end
function turtleup()
  if turtle.up() == false then
      while turtle.up() == false do
         turtledigup()
      end
  end
  acty = acty + 1
  writeterm("x : ".. actx .. ", y : ".. acty .. ", z : ".. actz .. ", yaw : ".. actyaw, 2)
end
function turtledown()
  if turtle.down() == false then
      while turtle.down() == false do
         turtledigdown()
      end
  end
  acty = acty - 1
end
function goforward()
  if turtle.forward() == false then
      while turtle.forward() == false do
         turtledig()
      end
  end
  if actyaw == 0 then
    actx = actx + 1
  elseif actyaw == 1 then
    actz = actz - 1
  elseif actyaw == 2 then
    actx = actx - 1
  elseif actyaw == 3 then
    actz = actz + 1
  end
  writeterm("x : ".. actx .. ", y : ".. acty .. ", z : ".. actz .. ", yaw : ".. actyaw, 2)
end
function findBack(x, y, z, yaw, anwser)
  if anwser ~= true then
    anwser = false
  end
  if x < actx then
    while actyaw ~= 2 do
      turtleleft()
    end
  elseif x > actx then
    while actyaw ~= 0 do
      turtleleft()
    end
  end
  while actx ~= x do
    goforward()
  end
  if z > actz then
    while actyaw ~= 3 do
      turtleleft()
    end
  elseif z < actz then
    while actyaw ~= 1 do
      turtleleft()
    end
  end
  while actz ~= z do
    goforward()
  end
  if y < acty then
    while acty ~= y do
      turtledown()
    end
  elseif y > acty then
    while acty ~= y do
      turtleup()
    end
  end
  while actyaw ~= yaw do
      turtleleft()
    end
  if anwser == true then
    turtleleft()
    turtleleft()
    clearInv()
    turtleleft()
    turtleleft()
    findBack(lastx, lasty, lastz, lastyaw, false)
  end
end
function turtleright()
  turtle.turnRight()
  actyaw = actyaw + 1
  if actyaw > 3 then
    actyaw = 0
  end
  writeterm("x : ".. actx .. ", y : ".. acty .. ", z : ".. actz .. ", yaw : ".. actyaw, 2)
end
function turtleleft()
  turtle.turnLeft()
  actyaw = actyaw - 1
  if actyaw < 0 then
    actyaw = 3
  end
  writeterm("x : ".. actx .. ", y : ".. acty .. ", z : ".. actz .. ", yaw : ".. actyaw, 2)
end
findBack(2,0,0,0,false)
findBack(2,5,0,0,false)
findBack(0,0,0,0,false)
turtle.select(1)
termclear()