XNA Frustrations

I've been working on a tower defense game in XNA (C#) lately. I like that XNA simplifies a lot of tasks, which means I can write less code than I typically would in a C++ game. For example, I can make a simple spriteBatch draw call to get a texture on the screen without creating my own vertex/index buffers. Or I can create the view and projection transformation matrices with a single utility method. XNA handles window creation and setup with very minimal code and generally makes the process of creating a 2D game a very simple task.

However, creating a 3D game with XNA is a completely different beast. One thing I've beaten my head against is lack of support for animation out-of-the-box. XNA apparently has some classes at a very low level, as described by my buddy Priyank over at eNtropology Games. XNA Animation Component Library looks promising, though I have yet to play with it. And then there is the XNA Creators Club skinning sample that implements runtime animation classes for a skinned model.

But my latest frustration concerns the lack of something much more basic than animation; I can't create a sphere in XNA! Some folks have created their own classes to implement a sphere as a game "component" object, but what I really need right now is a class that can be instantiated dynamically so I can preview my bounding boxes for collision detection. Naturally C++ has simple utility methods for creating the basic meshes: cubes, spheres, cylinders... even doughnuts and teapots! But no such luck with XNA yet, and the most annoying part is that I'm wasting time trying to render a sphere when I should be doing more important tasks, like making sure my models can avoid walking through each other.

It seems XNA is more of a toy than a tool for serious game development, and I think in the future I will be limiting my use of it to more basic projects. But for now I press on, forced to create innovative solutions (translation: hacks) to make it work... grrr....

Current Project: Tower Defense Game

I've noticed the guys over at Vortix Games occasionally take a hiatus from posting on their blog when busy with a given project. I think this is certainly understandable when you're part of a small team and would like to point out they have done a terrific job on their blog - definitely one to check out for some game development insights. And so I begin this post by admitting I've been doing the same... but hey, it's not so bad because I'm not the only one, right?!

At any rate, I would like to briefly mention the new game project I've been working on. A couple months ago I had the great pleasure of meeting a couple artists in my area, and we've since been working to design and build a Tower Defense game. For the uninitiated, gameplay consists primarily of setting up a series of defenses such as turrets or guns and then watching a flood of enemies attempt to navigate from their start position to a given destination. This is an entirely new game genre to me, but after having played a few games online (such as Whiteboard Tower Defense) and working on our current prototype, I'm excited to see how it will turn out. One thing is sure: with professional artwork it will definitely look better than my basic Pong clone!

This project has some interesting challenges. For example, it is entirely a 2D game; I've been learning 3D development for so long that it is a welcome switch of gears. It is also being developed for the XBox 360 using XNA Game Studio 3.0, which allows me to put my existing C# skills to use, just in a new way. I use C# every day for web development but this is my first experience with XNA. Even though the target platform is the XBox 360, I plan to make it playable on the PC as well.

I hope to reveal more about the game as our agile design/implementation/testing rounds progress. Keep an eye out for future posts, even if they're not terribly frequent. With any luck, the completed game will appear here for your enjoyment!