(Original Image by Valerie Everett) It is sometime necessary to move an object in a physics simulation to a specific point. On the one hand, it can be difficult to analyse the exact force you have to apply; on the…
(Original image by GoAwayStupidAI). Below are four C++ implementations of the region quadtree (the kind used for image compression, for example). The different implementations were made in an attempt to optimise construction of quadtrees. (For a tutorial on implementing region…
Many textures used for 3D art start from photographs. Ideally, such textures should be uniformly lit so that the texture does not interfere with the lighting applied by the 3D software. Often, lighting artefacts must be removed by hand. This…
(Original Image by everyone’s idle.) This post was a originally published on Luma Labs, now dead. As old as stimulus-response techniques are, they still form an important part of many AI systems, even if it is a thin layer underneath…
Tools for editing game levels and AI for your own games are nice to have, but it is not always practical to implement these for small projects, nor is it affordable to buy them off-the-shelf or bundled with expensive middleware.…
I wrote an article for Dev.Mag covering some techniques for working with seamless tile sets such as making blend tiles, getting more variety with procedural colour manipulation, tile placement strategies, and so on. Check it out! The Python Image Code has also been…
A cellular automata system is one of the best demonstrations of emergence. If you do not know what cellular automata (CA) is, then you should go download Conway’s Game of Life immediately: Conway’s Game of Life Essentially, CA is a…
Last year I wrote a tutorial explaining how to use XSI Mod Tool as a level editor, specifically for XNA. Below is the same tutorial, updated for XNA 3.0. There are only a few minor changes: You need not copy…
Random steering is often a useful for simulating interesting steering motion. In this post we look at components that make up a random steering toolkit. These can be combined in various ways to get agents to move in interesting ways.…
Vector fields are used in certain AI and simulation techniques. The tool below allows you to paint a vector field. These files can be saved in XML format, that can easily be loaded into another application. Bookmark on Delicious Digg…
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