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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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chosenkill6

Finding logic error

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I have spent about 2 hours now trying to find this one logic error in my code. The problem is, I have 5 JLabels and in each there is an ImageIcon. Sometimes a JLabel will draw, sometimes it won't. I am using eclipse. Is there any good ways to debug logic errors using either some debug tools in eclipse or some programming technique that will help me find the error. Getting really frustrated at myself right now :/

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Interactive applications like GUIs are hard to debug with an integrated debugger: a simple breakpoint disturbs a GUIs control flow and can trigger events which without debugger wouldn't occur. I don't know about eclipse, but what I did when I programmed GUIs was dumping relevant info right in the GUI (label, textbox): Internal states, event trigger counts etc.

 

If all fails, there's always log-files. The latter has the advantage that you can detect race conditions (what did occur after what?).

Edited by unbird
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I have spent about 2 hours now trying to find this one logic error in my code. The problem is, I have 5 JLabels and in each there is an ImageIcon. Sometimes a JLabel will draw, sometimes it won't. I am using eclipse. Is there any good ways to debug logic errors using either some debug tools in eclipse or some programming technique that will help me find the error. Getting really frustrated at myself right now :/


Can you post the code that sets up the JLabels?
Do you change the value of the JLabels and/or their ImageIcon data after initialization?

I recommend using System.out.println debug statements if you're using Eclipse (just to surround suspected problems and check values). The console is right there in the IDE, it might get spam-y due to the redraw loops of the GUI, but it could highlight your problem.
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