digger

width=3
highness=3
depht=3
for i=0,depht do
    smartMoveForward()
    for j=0,highness do
        turtle.turnLeft()
        smartMoveForward(width-1)
        turtle.turnRight()
        turtle.turnRight()
        smartMoveForward(width-1)
        turtle.turnLeft()
        if j<highness then
           smartMoveUp()
        end
    end
    smartMoveDown(highness)
end