mine

function refuel(min)
 if turtle.getFuelLevel() < min then
  turtle.select(1)
  while turtle.getFuelLevel() < min do
   turtle.refuel(1)
  end
 else
  return true
 end
end
function forward()
 if not turtle.forward() then
  turtle.attack()
  turtle.dig()
  forward()
 end
end
function upward()
 if not turtle.up() then
  turtle.digUp()
  upward()
 end
end
function downward()
 if not turtle.down() then
  turtle.digDown()
  downward()
 end
end
function inspectOre(s,d)
 if s then
  if d.name == "minecraft:iron_ore" or d.name == "minecraft:diamond_ore" or d.name == "minecraft:gold_ore" or d.name == "minecraft:coal_ore" or d.name == "minecraft:redstone_ore" then
   return true
  end
 end
 return false
end
function checkForOres()
 if inspectOre(turtle.inspect()) then
  forward()
  checkForOres()
  turtle.back()
 end
 turtle.turnRight()
 if inspectOre(turtle.inspect()) then
  forward()
  checkForOres()
  turtle.back()
 end
 turtle.turnLeft()
 turtle.turnLeft()
 if inspectOre(turtle.inspect()) then
  forward()
  checkForOres()
  turtle.back()
 end
 turtle.turnRight()

 if inspectOre(turtle.inspectUp()) then
  upward()
  checkForOres()
  turtle.down()
 end

 if inspectOre(turtle.inspectDown()) then
  downward()
  checkForOres()
  turtle.up()
 end
end
print("How many blocks do you want to mine")
local amount = read()
count = 1
for i=1,amount do
 if refuel(count) then
  forward()
  checkForOres()
  count=count+1
 else
  print("not enough Fuel")
  break
 end
end
for j=1,count do
 turtle.back()
end
print("----------DONE-----------")