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Java sources of
Programming Game AI by Example


Programming Game AI by Example is a book written by Mat Buckland.
(September 30, 2004 | ISBN-10: 1556220782 | ISBN-13: 978-1556220784 | Edition: 1)
It is a good book about artificial intelligence in games. Very good for beginners.

But its example sources are written in C++, use Windows libraries and are designed for Visual Studio 2006 and VS 2008. It was very complicated for me to force them to compile in VS 2010 (Express edition). I had to repair some source code, set up VS 2010 (set include and library directories), download and compile new version of luabind etc.
At the end I succeded to setup it – but it is impossible to do it under Linux!

And because I prefere Linux to Windows (no surprise, right?) and Java to C++, I decided to rewrite all examples from C++ to Java. Other reason to do it was that It helped me to practice Java (I am new in Java programming) and it also helped me to understand better all the examples from the book.

Now I decided to provide all my Java source to the world. I hope it could help other people struggling with the C++ source, and Linux (or MAC) users. I also hope to becomme famous all over the world, so don't forget to like my facebook page (a way how you can say thank you :-).


Java applet SimpleSoccer (require Java version 1.7+).



  1. All chapters (3.8 MiB, ZIP)
    This includes all chapters listed below (as NetBeans projects).
    You don't need to download anything else.
  2. Chapter 2 State Machines (203 KiB, ZIP)
    First project in the book. I have rewritten only those parts of the source code, witch I have to. In every other chapter there is rewritten more code from the "common" directory. There might be some differences between "common" packages in the others chapters (the newer the better).
    Remember, that i tried to write the code as similar to the original C++ source as possible. Therefore I used a lot of "import static" and other weird concepts, witch are not a "good Java practise".
  3. Chapter 3 Steering Behaviors (86 KiB, ZIP)
    Code for individual and group movement including the behaviors of seek, flee, arrive, pursuit, wander, evade, obstacle avoidance, wall avoidance etc.
  4. Chapter 4 Simple Soccer (113 KiB, ZIP)
    Implementation of a simple but entertaining artificial intelligence for a team based sports game.
  5. Chapter 5 Pathfinder (98 KiB, ZIP)
    Code of graph node class, graph edge class, graph class, depth first search, breadth first search, edge relaxation, shortest path trees, Dijkstra's search and A*.
  6. Chapter 6 Scripting Source (2.2 MiB, ZIP)
    This chapter is about using lua language with C and C++ source. It describes lua and luabind. But in Java, there are different projects providing lua support. I decided to use LuaJ.
    I managed to rewrite all examples without the need of changing any lua script, but I had to write help lua scripts imitating luabind behavior.
  7. Chapter 7 – 10 Raven (1.1 MiB, ZIP)
    This last 3 chapters sum all knowledge acquired before and add more (for example path planer, goal arbitration or fuzzy logic).


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