Difference between revisions of "Game Programming Class4"
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==Game Service== | ==Game Service== | ||
| − | A game service is a game component that uses and interface to enforce a singleton pattern and make a single instance of a game component accessible to all other components. | + | A game service is a game component that uses and interface to enforce a singleton pattern and make a single instance of a game component accessible to all other components. It's a nice mechanism to maintain a loose coupling between components. |
A singleton is a class that only allows a single instance of the class to be created. A game service is not a true singleton as it uses a unique interface to identify and expose it at the game level. | A singleton is a class that only allows a single instance of the class to be created. A game service is not a true singleton as it uses a unique interface to identify and expose it at the game level. | ||
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*Profiling Service | *Profiling Service | ||
*Scoreboard | *Scoreboard | ||
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| + | Microsoft has added the | ||
| + | *[http://msdn.microsoft.com/en-us/library/microsoft.xna.framework.gamerservices.aspx GamerServices] | ||
===Console Class=== | ===Console Class=== | ||
Revision as of 04:54, 16 February 2009
Game Components
About components Application Overview
Game Components are reusable and easy to add to a game Game Components
- GameComponent Class
- DrawGameComponent Class
http://blogs.msdn.com/xna/archive/2006/08/31/734204.aspx
Game Service
A game service is a game component that uses and interface to enforce a singleton pattern and make a single instance of a game component accessible to all other components. It's a nice mechanism to maintain a loose coupling between components.
A singleton is a class that only allows a single instance of the class to be created. A game service is not a true singleton as it uses a unique interface to identify and expose it at the game level.
A game service is a built in mechanism that allows a game to create and manage a single instance of a component ans allows other components access to the service.
Good candidates for a game service are.
- InputHandler
- GameConsole
- Profiling Service
- Scoreboard
Microsoft has added the
Console Class
Separate IntroGameLibrary Project to help Encapsulate Reusable Code. IntroConsole.zip IntoGameLibrary.zip
IntoGameLibrary/GameConsole.cs To Add the Component to the Game we make an delclare in the game class Then we need to add the componnet to the Game Components Collection.
<csharp>
GameConsole gameConsole;
public Game1()
{
graphics = new GraphicsDeviceManager(this);
Content.RootDirectory = "Content";
gameConsole = new GameConsole(this);
this.Components.Add(gameConsole);
}
</csharp>
IntroConsole/Game1.cs
Homework
- Use the fps component to create a baseline log
- Convert Project 3 to use the inputHandler service
Bonus
- Create your own game service and use it in an xna project
