You are making a Duck Simulator application. Started, all of your ducks had only two behaviors: swim and display.
Currently, your customers want your ducks to be able to fly and quack. However, the fly behavior varies among your ducks:
- Some ducks typically fly with two wings.
- Some special ducks fly with many rockets.
- Some other ducks can not fly.
The same problem occurs with the quack behavior. How will you deal with it?
The Strategy Pattern defines a family of algorithms, encapsulates each one, and makes them interchangeable. Strategy lets the algorithm vary independently from clients that use it.
