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Module 4 · Manhattan Navigation

Lesson 9 · Module 4 Final Project — Knowledge Checks

Name Date

  1. Why is the line manhattan.position = navigator.position necessary each leg?

    1. A.It resets the robot to (0,0)
    2. B.So the next compute_path() starts from where the robot actually is now, not the original start
    3. C.It updates the heading
    4. D.It is not necessary

    Answer Why?

  2. At the start of leg 2, what is the Navigator's heading?

    1. A.Always reset to 0 (North)
    2. B.Whatever heading it ended leg 1 with
    3. C.Always 2 (South)
    4. D.Random

    Answer Why?

  3. On the second leg the robot drives a clearly wrong path. What's the first thing to check?

    1. A.The battery voltage
    2. B.Whether manhattan.position was updated after leg 1
    3. C.The color of the grid lines
    4. D.The HEADING_NAMES list

    Answer Why?

  4. You want the robot to end where it began. What's the simplest change?

    1. A.Create a new Navigator facing North at the end
    2. B.Add (0, 0) as the final destination in the list
    3. C.Reverse the LineTrack motors
    4. D.Restart the program

    Answer Why?