Free Features

Clearance-based Pathfinding and Hierarchical Annotated A* Search
Open Tutorial May 5th, 2009

Clearance-based Pathfinding and Hierarchical Annotated A* Search

In this tutorial written by Daniel Harabor, you'll find out how to deal with different sized units when pathfinding on a grid, for example in a typical real-time strategy (RTS) game with tanks and foot soldiers. Learn how you can deal with this problem elegantly by using the concept of clearance at each point in the map. Daniel also presents his HAA* algorithm, which helps deal with clearance in a hierarchical ...

Motion Planning for Fun and Profit!
Insider Discussion May 2nd, 2009

Motion Planning for Fun and Profit!

One topic that's particularly hot in computer animation these days is motion planning. Think of it as one way to combine pathfinding with animation — which falls under the label of locomotion. Motion planning distinguishes itself by taking a more global approach to generating animation, such that the results are more purposeful and higher quality. Many game developers are looking in this direction for ...

Expo Floor AI Booth Crawl: 5 Middleware Companies, 10 Minutes Each
Insider Coverage April 18th, 2009

Expo Floor AI Booth Crawl: 5 Middleware Companies, 10 Minutes Each

During an empty slot on Thursday afternoon of the GDC, we spent 1h30 going around the whole Expo Floor. There were quite a few AI middleware vendors present, though not all of them were giving public demonstrations. We took our camera with us and filmed our discussions with the developers. We also took along a handful of AI programmers and researchers to ask tricky questions!

AI Summit Slides, Notes, Highlights and Photos
Open Coverage April 9th, 2009

AI Summit Slides, Notes, Highlights and Photos

The first two days of GDC 2009 featured the inaugural AI Summit, packed with presentations and panels from leading game developers worldwide. The event was a great success, bringing together a mix of AI programmers for a third of the audience, and rest consisted of students, enthusiasts, different types of developers, volunteers, media and other speakers.

GDC '09 Roundtable #3 Q&A Coverage
Insider Coverage April 4th, 2009

GDC '09 Roundtable #3 Q&A Coverage

The third AI roundtable of GDC 2009 took place on Friday 27th, and AiGameDev.com was also there to cover the session, like for the second roundtable. This session was the beginner Q&A roundtable, where people getting started in Game AI could ask anything on their mind. There was no shortage of topics to stimulate everyone's thoughts!