As I said, iPhone Game Kit is just a framework for game development, which can significantly accelerate your development process because it has done a lot of things for you in the background. You don’t have to write these codes yourself and worry about the underground details. The reason why this framework works effectively is because most games follow the similar modes or patterns, e.g., have characters, are level-based, have menu, save states, etc. Therefore, you can quickly apply this framework in writing different games by filling different things (e.g., different characters, stories, graphics, etc). Of course, the cost is obvious. You will lose some flexibilities. But this always happens when you are writing programs using other frameworks on different platforms. Frankly I don’t think this is a serious problem. When you become familiar with this kit, you can change its behavior easily.

It is impossible for a 100 page book to cover all of things about iPhone development. But the author covers most essential things on how to use this kit to write your own games. And I think more stuff will be added into this book in the following versions.

“it doesn’t mention device orientation”

You can easily set the orientation in the kit.

“What happens when the phone receives a call or text?”

This book doesn’t cover this, as I said, this book is not a reference book. But you could find answers from Apple’s documents. For this question, you will receive messages when the phone receives a call. The first message you will receive is applicationWillResignActive. Then the phone will let the user choose answer or dismiss the call. If the user chooses answer, you will receive applicationWillTerminate message, so you need to save the state of your game quickly. If the user choose dismiss, you will receive applicationDidBecomeActive message. The game will continue. This is how the system works in OS 3. I am not sure how it works in OS4, but I think they should be very similar except the OS 4 can let an app run in background.

Hope this is helpful for you.

Thanks for your link.

This work for me but not the above…..
class MyContactListener : public b2ContactListener
{

public:
void BeginContact(b2Contact* contact)

{
NSLog(@”Contact……………….”);
//HelloWorld *myHelloWorld;
//[myHelloWorld beginContact];
}

void EndContact(b2Contact* contact)

{
NSLog(@”Contact……………….”);
//HelloWorld *myHelloWorld;
//[myHelloWorld beginContact];
}

void PreSolve(b2Contact* contact, const b2Manifold* oldManifold)

{
NSLog(@”Contact……………….”);
//HelloWorld *myHelloWorld;
//[myHelloWorld beginContact];
}

void PostSolve(b2Contact* contact, const b2ContactImpulse* impulse)

{
NSLog(@”Contact……………….”);
//HelloWorld *myHelloWorld;
//[myHelloWorld beginContact];
}

};

@Kyle – thanks for letting Nat know

best, Marin