This is a video on how to have an object hit the wall and turn around. For example, this will help you create a maze game. When you hit the wall it will bounce off and turn around to go the other way. We chose to use a creative commons license. We chose this because we think that people should be able to make a few changes for educational purposes.
This is the link for the video: http://ia300220.us.archive.org/1/items/Usings_Tests_conditionals_in_Squeak/Squeak_test.swf
http://creativecommons.org/images/public/somerights20.png This work is licensed under a Commons Attribution 2.5 License.