A new version of this scenario was uploaded on Tue Jun 19 02:52:37 UTC 2012
* Use alpha transparency in the text message. 文字訊息改用半透明。
A new version of this scenario was uploaded on Tue Jun 19 18:18:51 UTC 2012
* use Color(int, int, int, int) instead of Color(float, float, float, float), for simplicity.
A new version of this scenario was uploaded on Wed Jun 20 08:11:44 UTC 2012
* Use boolean to check the lights instead of integer sum, to simplify.
* Change all the fields to private, to follow the Greenfoot book's convention.
A new version of this scenario was uploaded on Fri Jun 29 18:48:24 UTC 2012
* Stopped keeping track the light bulb list. The light bulbs can be obtained from getObjects().
* Uses boolean instead of int to check if all the lights are one.
2012/6/17
2012/6/17
2012/6/18
2012/6/18
2012/8/8