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Learning Game AI Programming with Lua by David Young

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Agent-steering forces

With some basic agent properties and a full-fledged physics system supporting the sandbox, we can begin moving agents realistically through forces. This type of movement system is best known as a steering-based locomotion system. Craig Reynolds' Steering Behaviors For Autonomous Characters (http://www.red3d.com/cwr/papers/1999/gdc99steer.html) is best known for describing this style of steering system for moving characters. Steering forces allow for an easy classification of different movement types and allow for an easy way to apply multiple forces to a character.

As the sandbox uses the OpenSteer library to steer calculations, this makes it painless for Lua to request steering forces. While the steering calculations are ...

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