• Announcements

    • khawk

      Download the Game Design and Indie Game Marketing Freebook   07/19/17

      GameDev.net and CRC Press have teamed up to bring a free ebook of content curated from top titles published by CRC Press. The freebook, Practices of Game Design & Indie Game Marketing, includes chapters from The Art of Game Design: A Book of Lenses, A Practical Guide to Indie Game Marketing, and An Architectural Approach to Level Design. The GameDev.net FreeBook is relevant to game designers, developers, and those interested in learning more about the challenges in game development. We know game development can be a tough discipline and business, so we picked several chapters from CRC Press titles that we thought would be of interest to you, the GameDev.net audience, in your journey to design, develop, and market your next game. The free ebook is available through CRC Press by clicking here. The Curated Books The Art of Game Design: A Book of Lenses, Second Edition, by Jesse Schell Presents 100+ sets of questions, or different lenses, for viewing a game’s design, encompassing diverse fields such as psychology, architecture, music, film, software engineering, theme park design, mathematics, anthropology, and more. Written by one of the world's top game designers, this book describes the deepest and most fundamental principles of game design, demonstrating how tactics used in board, card, and athletic games also work in video games. It provides practical instruction on creating world-class games that will be played again and again. View it here. A Practical Guide to Indie Game Marketing, by Joel Dreskin Marketing is an essential but too frequently overlooked or minimized component of the release plan for indie games. A Practical Guide to Indie Game Marketing provides you with the tools needed to build visibility and sell your indie games. With special focus on those developers with small budgets and limited staff and resources, this book is packed with tangible recommendations and techniques that you can put to use immediately. As a seasoned professional of the indie game arena, author Joel Dreskin gives you insight into practical, real-world experiences of marketing numerous successful games and also provides stories of the failures. View it here. An Architectural Approach to Level Design This is one of the first books to integrate architectural and spatial design theory with the field of level design. The book presents architectural techniques and theories for level designers to use in their own work. It connects architecture and level design in different ways that address the practical elements of how designers construct space and the experiential elements of how and why humans interact with this space. Throughout the text, readers learn skills for spatial layout, evoking emotion through gamespaces, and creating better levels through architectural theory. View it here. Learn more and download the ebook by clicking here. Did you know? GameDev.net and CRC Press also recently teamed up to bring GDNet+ Members up to a 20% discount on all CRC Press books. Learn more about this and other benefits here.
Sign in to follow this  
Followers 0
jdub

C# Question about Inheritance with Generic classes

3 posts in this topic

~Pseudo Code:
[CODE]
public class Manager
{
List<GenericBase<IDisposeable>> list;
public void Add(GenericBase<IDisposable> obj)
{
list.add(obj);
}
}
public class GenericBase<T> where T : IDisposable
{

}
public class Resource : IDisposable
{

}
public class Inherited : GenericBase<Resource>
{

}
[/CODE]

So what if I want to add an Inherited object to the list inside manager? I would think that the conversion to a GenericBase<IDisposeable> would be trivial considering that Resource inherits from IDisposeable and Inherited inherits from GenericBase. However, I get an error saying this conversion is not possible. Now I know that I can write a conversion operator inside Inherited to fix this but I feel like it is annoying and redundant to do this every time I create a new class inheriting from the GenericBase class. Is there anyway to get around this?
0

Share this post


Link to post
Share on other sites
So, your GenericBase class is only set up with a constraint on T. The class itself doesn't say it implements IDisposable.

The quick fix would be:

[code]
public class GenericBase<T> : IDisposable where T : IDisposable
[/code]
1

Share this post


Link to post
Share on other sites
Tried it in the editor and it still won't convert. Giving me the same error
0

Share this post


Link to post
Share on other sites
I think the type of your generic list is too complex for it to resolve, so you could try simplifying it by having a common base class like so:

[CODE]
public class Manager
{
List<GenericBase> list = new List<GenericBase>();
public void Add(GenericBase obj)
{
list.Add(obj);
}
}
public abstract class GenericBase
{
}

public class GenericBase<T> : GenericBase where T : IDisposable
{
}
public class Resource : IDisposable
{
public void Dispose()
{
}
}
public class Inherited : GenericBase<Resource>
{
}
[/CODE]

That compiles for me, not sure if it works how you expect it to though. If you don't like the fact that the GenericBase class has nothing in it, you could always change it into an interface.
0

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0