alice-teacher Question about move toward

[Vanderhyde, James]

I am using Alice 2.4.3. One of my students today produced unexpected behavior using “move toward.” Consider this code:

 Do together
          chicken turn left 1 revolution
  chicken move amount = 2 meters toward target = bunny

The chicken turns in a circle rather than turning while moving toward the bunny. I know that “move forward” combined with “turn left” will result in circular movement. But I don’t understand why “move toward” is doing it. After all, “move toward” by itself works no matter which way the chicken is facing.

Is this a bug or desired behavior? If desired, can someone explain it to me?

James
—
James Vanderhyde
Assistant Professor, Computer Science
Program Director, Master of Applied Computer Science
Saint Xavier University
3700 W. 103rd St.
Chicago, IL 60655
773-298-3454

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