ActionScript 3 Design Patterns

Separated Presentation: The Classic Model-View-Controller Pattern

Chandima Cumaranatunge — Mon, 01 Mar 2010 15:01:33 +0000

This is not an introduction to the MVC pattern, but a look into its implementation in Smalltalk-80 to understand the original intent and function of the Model, View, and Controller triad. Starting with the “classic” MVC helped me understand the evolution of the presentation patterns that came after it. We will look at how a simple MVC [...] Related posts:

The ActionScript 3.0 Design Pattern Thrill Ride: Part I

William B. Sanders — Sun, 28 Feb 2010 21:04:03 +0000

My initial idea of having a “thrill ride” through a design pattern to help reveal its operation is turning out to be awkward in more ways than I envisioned. The initial tour is going to be through a State Design Pattern; so naturally I set it up using a State pattern. It wasn’t too long [...] No related posts.

ActionsScript 3.0 Design Pattern Relations Part IV: Creation

William B. Sanders — Fri, 19 Feb 2010 02:26:33 +0000

ne of the least discussed relations in Design Patterns is where one participant creates an instance of another. Basically, the pattern calls for one class to instantiate another class. This relationship is indicated by a broken line with an arrowhead pointing to the class that has been instantiated. (The Participant Relations diagram above shows [...] Related posts:

Separated Presentation: A series on presentation patterns

Chandima Cumaranatunge — Wed, 10 Feb 2010 19:10:51 +0000

This is the introductory post on a series of upcoming posts on presentation patterns where I take a mindful walk on the path carved out by Martin Fowler in his chapter on GUI Architectures. Mindful in the sense that I'm bringing a Flash and ActionScript mindset to the journey. I'll be using the weather maps sample application from Chapter 12 in our book to provide a fresh set of examples on the following presentation patterns: The Classic Model-View-Controller (MVC) Autonomous View Model-View-Presenter (MVP) Passive-View Related posts:

Separated Presentation: The Classic Model-View-Controller Pattern

ActionsScript 3.0 Design Pattern Relations Part III: Inheritance

William B. Sanders — Tue, 09 Feb 2010 14:33:57 +0000

n open triangle on a line from a child class to the parent class indicates the inheritance symbol in Design Pattern class diagrams. In the Participant Relations diagram above, you can see symbols for both single and multiple inheritance in red. Inheritance in design patterns is so common, pointing out which designs do not use [...] Related posts:

New Aid Game: The Machine Moves!

William B. Sanders — Tue, 02 Feb 2010 18:54:54 +0000

wanted to move on from the original Aid Game, at least as far as the movement was concerned; so I fully fixed it up. With the new set of rules from the previous post of repairing the movement, I realized that if I didn’t generate fully operating movement states, we’d end up overly focusing [...] Related posts:

Fixing the State Machine: Aid Game Repair

William B. Sanders — Sat, 30 Jan 2010 22:05:05 +0000

strong>Getting the States Straight In a recent post to illustrate the use of composition and delegation, I created a simple game using a State design Pattern—the Aid Game. A lot of people had lots of questions and suggestions for making it better and being one who thrives on improvement and change, I promised to have a [...] Related posts:

ActionsScript 3.0 Design Pattern Relations Part II: Aggregation

William B. Sanders — Tue, 26 Jan 2010 20:58:39 +0000

I’m tempted to say that aggregation is a stronger form of acquaintance, and that wouldn’t be far from wrong. In fact, in certain contexts it may be perfectly correct. Gamma, et al point out that the differences between the two is a matter of intent rather than explicit language mechanisms. That makes it a [...] Related posts:

ActionScript 3.0 State Design Pattern: An Aid Game

William B. Sanders — Mon, 18 Jan 2010 15:14:11 +0000

fter creating the post on the acquaintance relationship between classes, I started thinking about the aggregate relationship and delegation. One of the best examples of delegation can be found in the State design patterns. All of the states are delegated to objects that handle each state. So I thought it’d be a good idea to [...] Related posts:

ActionsScript 3.0 Design Pattern Relations Part I: Acquaintances

William B. Sanders — Sat, 16 Jan 2010 15:58:45 +0000

his post is the first in a series where I hope to discuss all of the key relationships between classes in Design Patterns. To help identify posts in this series I’ve created a general diagram with all of the different kinds of relationships between classes. I did not include the boxes for pseudo-code or divide [...] Related posts: