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      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.
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blueshogun96

Why does my game restart when I minimize and reopen it?

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I haven't found much of anything to help me solve this problem, and debugging it is a pain because it doesn't happen when debugging remotely.  Let's say I pressed the home button and minimize the app.  applicationDidEnterBackground gets called, yes.  Is this where I'm supposed to save all of my game data and write it to the app's private data directory and load it when it comes back to the foreground?  All of my game's information is stored in a series of linked lists, and saving it would be easy enough I guess.

 

Another thing, does all of the app's memory get deallocated when it's minimized?  Should I deallocate everything to avoid memory leaks?  I find iOS not to be very straightforward in this regard.  Any advice is appreciated.  Thanks.

 

Shogun.

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When the app enters the background you should save state because the user may close the app by double tapping the home button and swiping up.

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A long time ago, before iOS's 'multitasking', games would often save the entire game state on a suspend event, so that when the app is reopened you can restore the player to the exact position, be it mid-level, deep in the front end menus, or whatever.

 

These days, for most titles, it's not worth the effort. Just save any user progress as soon as it occurs, if the user suspends your app and tries to return to it, usually the OS will restore your app to the foreground as if nothing has happened. In the event that the OS decided to kill your app to reclaim the RAM, or the user manually killed your app, it doesn't matter much because you will have saved the progress fairly recently.

 

The only thing I would normally bother doing is to pause the game. One exception is that if your game is pushing the device's memory usage to the limit, then you should make an effort to free a decent chunk of memory on suspend (textures are quite easy to remove/reload), otherwise, the OS is very likely to close your app (particularly bad if your app has links to safari or the app store or something, the user follows the link from within your game, returns to the game only to find it has crashed!).

 

Here's the relevant doc from Apple: https://developer.apple.com/library/ios/documentation/iphone/conceptual/iphoneosprogrammingguide/ManagingYourApplicationsFlow/ManagingYourApplicationsFlow.html

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