TurtleMine2020

local digDepth = 32
local digWidth = 7
local torchSpacing = 4
local currentDepth = torchSpacing - 1
local digHeight = 12
local chestSlot = 14
local torchSlot = 15
local fuelSlot = 16


function checkFuel()
    if turtle.getFuelLevel() < 120 then
        turtle.select(fuelSlot)
        turtle.refuel(2)
        turtle.select(1)
    end
end

function checkInv()
  if turtle.getItemCount(11) > 0 then
    goAround()
    turtle.select(chestSlot)
    while turtle.place() == false do
      turtle.dig()
      turtle.attack()
    end
    for i = 1, 13 do
      turtle.select(i)
      turtle.drop()
    end
    goAround()
    turtle.select(1)
  end
end

function placeTorch()
    turtle.select(torchSlot)
  goAround()
    turtle.place()
  goAround()
    turtle.select(1)
end

function goForward(times)
  for i = 1, times do
    while turtle.forward() == false do
      turtle.attack()
      turtle.dig()
    end

    if i == 4 and currentDepth == torchSpacing then
      placeTorch()
      currentDepth = 0
    end

  end
end

function goAround()
  for i = 1, 2 do
    turtle.turnLeft()
  end
end

function goUp()
  while turtle.up() == false do
    turtle.attackUp()
    turtle.digUp()
  end
end

function goDown(times)
  for i = 1, times do
    while turtle.down() == false do
      turtle.attackDown()
      turtle.digDown()
    end
  end
end

function digMine()

  local currentHeight = 1
  goForward(1)
  currentDepth = currentDepth + 1
  turtle.turnLeft()

  for i = 1, digHeight do
    goForward(digWidth -1)
    goAround()
    if currentHeight ~= digHeight then
      goUp()
      currentHeight = currentHeight + 1
    end
  end

  goDown(currentHeight -1)
  turtle.turnRight()

end



function turtleStart()
    for i = 1, digDepth do
        checkFuel()
    checkInv()
    digMine()
    end
end

turtleStart()