Following our Nokia 7650 purchase we started to develop new versions for our titles that take advantage of its unique graphics capabilities. One of the first titles we chose to migrate for Nokia 7650 is Jacado. Jacado is a fish that lives in your mobile telephone. Jacado needs food and love in order to survive in this cruel world. Each time you run Jacado you will see a personal message about the fish. The main screen shows an animated fish, swimming back and forth. You will see the amount of food and love that Jacado has by the piles of food and hearts on both sides of the screen. When these piles get low, you can increase their levels by feeding the fish and making him happy.
The Visitor Design Pattern
The visitor design pattern allows us to add operations to objects that already exist without modifying their classes and without extending them.