Compiling for power pc?

You need to set Xcode to compile for the PowerPC architecture as well as the Intel architecture in project settings.

You have most likely hard coded the paths into your application. When Mac OS X bundles the application up into a .app it puts resources into a different folder. I believe there is a variable relating to the root of the app bundle but I forget exactly what it is.

 

You would use NSBundle to load resources from your bundle.

 

Let me clarify this a bit more: you should put your resources like images and sound in the Resources folder in Xcode. Then, when compiling, it'll place it in the correct location for the app. You can use NSBundle to locate these resources.

 

If you're using Xcode 3.x, the most likely cause of your problem is you used the Debug build configuration, which doesn't build universal binaries. Change the active build configuration to Release, and Xcode should build a universal binary.

 

Modify the Architectures build setting. I don't know what version of Xcode you're using, but in Xcode 3.1, you should set Architectures to Standard (32-bit Universal).

You may also need to modify the Deployment Target build setting for your game to run on your brother's Mac. The deployment target is the earliest version of Mac OS X that can run your program. It is initially set to the version of Mac OS X you're running, which is most likely 10.5. You'll need to set the deployment target to the OS version your brother's running.

This blog post should help you with your bundle question.

 

Cocoa is written in Objective-C and thus you can only use it from Objective-C code.

Depending on what language you are using, I suggest this:

• C: Create a header file, like mac_support.h, and in it create functions like GetPathOfResource(blabla). Create an Objective-C implementation file, like mac_support.m. There you can include Cocoa.h and use NSBundle methods when implementing the function.
  
• C++: Declare a C++ class in a header, like MacSupport.h. Create an Objective-C++ file like MacSupport.mm, where you can mix C++ and Objective-C code when implementing the methods.

You still need to do some string conversions etc, but I trust that with the help of the NSString class reference you can sort that out.

 

Did you add the Cocoa framework to your project? If you didn't, you're going to get compiler errors if you try to call any Cocoa functions.

Since your game is cross-platform, you probably used a cross-platform game library like SDL or Allegro. What library did you use? If you used SDL, modify the method setupWorkingDirectory in the file SDLMain.m. The blog post I linked to earlier contains the code to put in the method. If you used another library, someone else will have to help you.