4.* Advanced

Undoing

Page 100, exercise 12 - the robot that has the undo command. I used the idea of a Decorator strategy.

Simultaneous Action

Chapter 8 in the text shows how to make more than one robot act at the same time. See the MultiThreadBot on the class GitHub.

A brief summary is:

• World.setupThread(robot) prepares the robot to act in its own thread.

• World.startThreads() calls the run() method for every robot that is set up as threading using the command above.