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      Download the Game Design and Indie Game Marketing Freebook   07/19/17

      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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RLS0812

Sharing Variables With JavaScript & PHP

3 posts in this topic

 I'm in the middle of developing a JavaScript game using the canvas features, have ran into issues related to I/O .

 In JavaScript I have no file handling capabilities, no way to create, modify, or access data bases, and no real objects .

 

 I was wondering what the easiest way of passing variables back and forth between PHP & JavaScript / JavaScript & PHP .

 

 I have seen a couple examples doing a Google search, but no good explanation on how it's done.

 From what I can tell the way it's done it to output PHP code in the JavaScript ""document.write('PHP code here');"" , and output JavaScript code in the PHP ""echo 'JavaScript code here' ;"" .

 

 How does this work, and is there an easier way this can be done ? ( without AJAX )

 

 Thank you for your time.

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Your PHP code is running on the webserver whenever a user requests a page. Your Javascript code is running in the client's browser.

If you use document.write('PHP code here');, then all that will happen is that PHP code will appear on the clients screen.

In order to actually execute some PHP code on the server, the javascript code has to make a request to the webserver. You can either do this by loading a whole new page (as if the user clicked a link), or by using AJAX etc to load a new page in the background and extract information from it.

 

For the other direction, yes, the PHP code is typically outputting a HTML document, so you can echo a < script> tag with JS code in it, which will be executed by the client's browser when it loads the document.

Edited by Hodgman
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Aside from doing AJAX calls, you could use HTML5 Web Storage to store data. Have you looked into that? If you are trying to keep track of things like scores for top scores amongst all players around the world then yes you would want to probably use AJAX to send data to a PHP script (runs in the background as stated above).

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