The highlights include:

• a new sound engine
• touch dispatcher
• faster actions
• an improved particle system

If you haven’t tried Cocos and are looking to develop a 2d game on the iPhone quickly without having to purchase a commercial engine you should check out Cocos2D here.
 

[via cocos2d for iPhone]

©2010 iPhone iOS 4 iPad SDK Development Tutorials, Programming Tips, News. All Rights Reserved.

I have created a new version of this list at: 18 OpenGL ES Resources That You Must Know!

Math Resources

If you don’t have a basic understanding of 2D and 3D math for computer graphics your head will probably explode once you try learning OpenGL.  To prevent that from happening you should at least understand the terminology, and the reasons why this math is needed.  No need to grind through math problems like in college.. that’s what computers are for.

1. The Black Art of 3D Game Programming Chapter 10 This is a great introduction to graphics math, and pretty much crams 3 college courses I took into this chapter.  The whole book can be found here for free.  It is an old book, but the math still holds true.

2. Vector & Matrix Math Tutorial If you feel that everything in the resource above is flying above your head then you probably will want to take a look at this.  I normally wouldn’t reccomend a resource that brags about being "book sized", but it is very good.

iPhone Specific Resources

3. iPhone OpenGL ES Tutorial Series I don’t know if Maurice SImon is the smartest person alive, but this is the smartest set of OpenGL ES tutorials I’ve seen.  A terrific resource.

4.  Jeff LaMarche’s iPhone Blog Blog from one of the authors of the excellent Beginning iPhone Development book with many articles on OpenGL ES, and an ongoing OpenGL ES from The Ground Up series.

5. SIO2 Engine this is an excellent Open Source 3D OpenGL ES engine, look at the code, understand, and maybe even use the engine rather than write your own from the ground up (nothing wrong with that).

6. Oolong Engine An Open source 3D OpenGL ES Game Engine for Iphone, MIT licensed. Written by Wolfgang Engel former Rockstar Games programmer, and author of some intense DirectX books.  Great to see the libraries in here for handling memory, loading 3d models, and performing math.

7. Cocos2D Iphone This is an excellent Open Source 2D OpenGL ES Game Framework for iPhone you can learn alot from going in and looking around the code.  As far as Open Source frameworks go this extremely easy to use, well documented, and has an active community.

8. SDL for iPhone (SDL Version 1.3) The SDL library has been a popular open source library for probably over a decade, and has been used in many games. This is the iPhone port, and a great resource.

Non iPhone Resources

If you use these resources you’ll need to put in some time to get things running on the iPhone, but they are still excellent.

10. Nehe Tutorials Converted To OpenGL ES Michael Gorchak creator of the GluES library has put together this collection of tutorials converted from their original Nehe form.  In case you haven’t heard of them the Nehe tutorials were the definitive free tutorials for learning OpenGL.  Michael has done an excellent job of writing comments for these tutorials.

11. Khronos OpenGL ES Page This is the OpenGL ES "homepage" on which you will find the reference manual, and lots of examples.  Not specifically IPhone, but there are some great examples here and even a complete racing game BSD licensed.

12. Khronos OpenGL ES 1.x Step-By-Step Tutorials This page is from Imagination Technologies makers of the Iphone GPU, and it contains the Khronos tutorials converted to OpenGL ES and created for the PowerVR technology.  Good to lean from especially as to how they load Pod files.

13. Zeus CMD OpenGL ES Tutorials This site contains 25 Great OpenGL ES Tutorials and they are extremely well paced, this was a site I learned alot from.

14. Typhoon Labs OpenGL ES Tutorials Another excellent set of OpenGL ES tutorials if you’re addicted to tutorials you might want to check these out too.

OpenGL ES 2.0 Resources

These are the OpenGL ES 2.0 resources you know so far, the Khronos OpenGL ES page above also includes information on OpenGL ES 2.0.  You can see there aren’t many that i know of so if you know of some killer OpenGL ES 2.0 resources please link to them

15.  The OpenGL ES Programming Book The code from this book has been updated to run on the iPhone and can be found here.  Make sure you have a solid understanding of OpenGL (or OpenGL ES 1.x) before starting this book.   

16. The OpenGL ES Shading Language This is a free pdf book from Khronos, and actually a really good read, and will teach you what you need to know, again don’t try this until you at least have some OpenGL understanding or your head may explode. Thanks to Bill Dudney one of the authors of iPhone SDK Development for pointing this out.

This is a quick video on getting started with iPhone OpenGL ES:

That’s it, if you know of some other great resources please share them.
 
 

©2010 iPhone iOS 4 iPad SDK Development Tutorials, Programming Tips, News. All Rights Reserved.

In the past I’ve mentioned a few tools out there that allow you to create games visually which can speed up your game creation time considerably. The game engines I’ve mentioned are Unity 3d, Shiva, and iTGB. With Unity 3d and Shiva being both 3d game development tools. Now the problem most people have with these tools is the cost.

Well, I’ve found a game creation program that is even easier.. in fact much easier than those programs, and is free. While it only supports 2D game creation I’ve read that the ability to compile games for the iPhone and sell them in the app store using this program is imminent. This game creation program is known as Gamesalad. It has already been set up for the iPhone screen size so once the ability to compile games for the iPhone is added you won’t have to do any porting. There will apparently be a small cost for transferring the games to the iPhone, but I can’t imagine it being anywhere near the cost for the other aforementioned iPhone game engines.

Check out this video, and just see how easy it is (Please note that Cinammon is now known as Gamesalad, and has evolved considerably since this video was made).

Now performance is often an issue with these rapid game creation programs, but even though it’s still in beta and needs alot of polish (and of course the ability to compile for the iPhone) it could be worth learning especially if you’re new to programming as using these tools you can learn how to understand the logic of programming quickly.

So check out Gamesalad if you’re looking for a really easy way to create games.. coming soon for the iPhone.

©2010 iPhone iOS 4 iPad SDK Development Tutorials, Programming Tips, News. All Rights Reserved.

To begin with these are the ones that I know of (in alphabetical order):

Cocoas2D – 2D Game Engine, Open Source, LGPL
iTGB for 2D Games – 2D Game Engine, Commercial, Min. cost $500
OOlong Engine – 3D Game Engine, Open Source, MIT License
SIO2Engine – 3D Game Engine, Open Source, Payment or flash screen on game required
Ston3D for Iphone – 3D Game Engine, Commercial,  Min. cost approx. $250 (based on current conversion rates)
Unity3D Engine – 3D Game Engine, Commercial, Min. cost $199 + $399 If you have any exprience using any of the above engines in development please post any opinions you have. If you know of any other 3D or 2D engines available for iPhone developers then please post below.

This list has been updated:
A look at 8 different

2D and 3D iPhone Game Engines

©2010 iPhone iOS 4 iPad SDK Development Tutorials, Programming Tips, News. All Rights Reserved.

If you are determined to get into developing a 3D game there are a couple of free engines. The first one I’ll mention is the SIO2 Engine. I haven’t explored this engine in detail, but from running the examples and going through a couple of the tutorials it looks to be well made, it is written in C, but the learning curve is easier than you would think especially if you have used Blender.  The second engine is the Oolong Engine created by well known graphics programmer Wolfgang Engel from Rockstar Games.  I’ve been messing around with this engine for awhile, and find it to be excellent, be warned though it is extremely low level, and has no documentation so you will be learning simply from example.  It is basically the PowerVR 3D SDK optimized for the iPhone with added memory management, 3ds loading, and a math library, and is essentially meant for programmers with an understanding of OpenGL ES, which probably makes it fall into the “not quick” category of development, but I thought I should mention it for those wondering what I would use.

The final alternative for “quick” game development on the iPhone is just to use CoreAnimation, from what I understand game development using CoreAnimation can lead to performance issues, but if you’re developing a game that doesn’t include any fast action such as a board or card game then it may be your best bet.  I’d suggest looking at the GeekGameBoard example from Apple. While the example is a Mac OS X the syntax is very similar, and you should be well on your way to coding a game in CoreAnimation.  There are a few missing features, but you can certainly develop a non-action oriented game using CoreAnimation.  I left CoreAnimation for last simply because from what I’ve read on the iPhone boards it really is only viable for specific games.

Thanks for reading, and if you know of any good free iPhone game development tools that I haven’t mentioned then please comment about them below.

©2010 iPhone iOS 4 iPad SDK Development Tutorials, Programming Tips, News. All Rights Reserved.