print("about to cut tree");
if turtle.getFuelLevel() > 100 then
    -- 
    turtle.select(1);
    -- from under the tree
    if turtle.detect() then
        turtle.dig();
    end;
    turtle.forward();
    -- dig till nothing
    while turtle.detectUp() do
      turtle.digUp();
      turtle.up();
    end;
    -- whille going back, scrap leaves around
    while not turtle.detectDown() do
        for i=1,4 do
            turtle.turnLeft();
            if turtle.detect() then
                turtle.dig();
            end;
        end;
        turtle.down();
    end;
    print("done");
else
  print ("fuel plz");
end;