AP CSA FRQ Guide
2014 FRQ 2: Director
Write a legacy GridWorld actor that alternates color and, on one color state, turns neighboring actors before acting.
Legacy GridWorld Actor22 minute targetGridWorldstateobjectslegacy
Skills Tested
What this FRQ is really practicing
GridWorldstateobjectslegacy
Treat these skills as the study checklist. If any tag feels shaky, review that topic before attempting the full written response.
Starter Approach
How to begin without copying a solution
- 1Initialize the actor with the required starting color.
- 2When acting from the active color state, rotate neighboring actors.
- 3Alternate color each time act is called.
Write a first attempt before revealing any solution outline. Most AP CSA FRQ progress comes from tracing your own code and finding the missing case.
Common Mistakes
Mistakes to watch for while writing
Turning neighbors on the wrong color state.
Forgetting to alternate color after acting.
Changing the Director direction instead of neighboring actors.
Self Check
Review questions before you submit
Declares Director as the required GridWorld type.
This is a legacy GridWorld archive prompt.
Initializes the starting color.
Use the color named in the prompt.
Processes neighboring actors.
Use GridWorld neighbor-location or neighbor-actor helpers.
Turns affected actors 90 degrees right.
Add Location.RIGHT or 90 degrees to the direction.
Practice Links