Spiral model for game development: Techniques to develop games

from stockvault

The Spiral model for game development is a simple and elegant technique which is usually used to develop game efficiently. Inexperienced game developers tend to design a game with a lot of features and then start to implement all of them without having any order of priority. Is always a good practice to define which features should be developed first and which should be developed later.

Let’s see which are the best techniques used to develop software and which are the best for the video game development

 

Waterfall Model

Waterfall development system
From gamedesignconcepts.files.wordpress.com/

This is a model called Waterfall:

This model can lead to problems. For example, what if you realize that some features that you’ve implemented don’t work as expected in the post-production phase? Well you can go back to the Design phase to redesign that feature that didn’t work very well and then adjust the code to fit that new feature, but do changes to the software that you’ve already written it’s not something easy and sometimes if the changes are too big, it’s better to redo the project from scratch. Because of this, the waterfall model it’s good and efficient only for very small project. To avoid these situations, we can use a development technique called the spiral model:

 

The spiral model

https://gamedesignconcepts.files.wordpress.com/2009/07/waterfall.jpg?w=450&h=292
From gamedesignconcepts.files.wordpress.com/

 

The spiral model in action:

As you can see, this model allow flexibility and interactivity into the development process of the video game. The first step of the spiral model cycle it’s the Design phase:

Design: Here you define the feature to develop in the next cycle.

Implement: Here it’s where you develop the features that you decide in the Design phase.

Playtest: Here it’s where you make sure that what you’ve made it’s fun for the player.

Evaluate: Final thoughts about what you’ve done right and wrong during the past cycle, forming a new set of observation and then go back to the first step.

 

This process has a lot of advantages:

  1. Keep the risks as low as possible.
  2. Start with the core features.
  3. Get a prototype quickly.
  4. You can use it with scrum.
  5. Allow fast changes

 

Keep the risks as low as possible:

If you discover that something planned isn’t working as expected in the design phase, you can easily change it on the next cycle.

 

Start with the core features:

The firsts cycles of  you game development process will be dedicated to developing the core features of the game. This will allow you the discover as soon as possible if something is wrong with the core game mechanics of your game.

 

Get a prototype quickly:

from wikipedia
from Wikipedia

The main goal when you start to develop your next game, it’s to obtain a playable prototype as soon as possible. When you have decided the core features, you’ll spend the first iterations to develop them. At the end of the first cycle, you’ll end up with a playable prototype that you can use to evaluate the core of your game and eventually, if there are some changes to do, you can do it in the next cycles.

This cycle show you how to obtain a prototype as fast as you can, and each cycle will lead you to a new prototype with new features, this cycle will go on until you’ll have an operational prototype with all the minimum valuable features.

 

Pros:

You can use it with scrum:

The spiral model can be easily used along with the scrum technique. This can help to increase your productivity and efficiency in your development process. Basically, each sprint plan can be associated with a development cycle of the spiral model.

 

Allow fast changes:

Did something go wrong into the past development cycle? Or you maybe just decide to change or add a new feature into your game? No problem, you can easily add those to the next development cycles.

 

Cons:

The last cycles don’t allow to do big changes:

Imagine the building of your game like the building of a house. Each cycle equivalent to the construction of a wall in the house building. As we can imagine, if we plan it’s to develop a 3 floors apartment, we can’t change our mind and build a skyscraper after we’ve already made half of the house, the same it’s for the software development.

So, thanks to the spiral model, the game can be easily changed and adjusted, especially into the first cycles, later on, when you have designed and developed all the cores features, will be more hard to make big changes, this end to a simple conclusion: spend more time to think carefully about the design phase, especially on the first development cycles, because those are the most import cycles of your game, those are the cycles where you decide the core features, are the foundation of on house, once they are built, you can build the rest on top of it.

 

Free bonus:

Do you want to know more about the spiral model? Then go and buy this amazing book.

Conclusion :

The spiral model is for sure one of the best technique that you can use to develop games. There are others techniques that you can use, but the spiral is for sure the best choice if you are new to the game development.

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