AI and Artificial Life in Video Games by Guy W. Lecky-Thompson PDF

By Guy W. Lecky-Thompson

ISBN-10: 1584505583

ISBN-13: 9781584505587

How you can create more difficult and dynamic video games with AI and synthetic lifestyles in games. AI, or man made intelligence, builds greater video games by way of directing behaviors contained in the video games that lead them to more challenging, whereas synthetic existence, or A-Life, provides unpredictability of play and a extra realistic setting to video games. This publication examines effortless and cheap tools for enforcing AI and A-Life in any game not to purely version habit within the online game but additionally create instruments, generate code, and try out the sport in the course of improvement. After introducing the fundamentals of AI and A-Life to exploit as construction blocks, the e-book delves into extra complex equipment and examines attainable destiny makes use of and methods. You’ll learn the way AI will be outfitted up in a video game via layering behavioral types on static facts to provide habit that's either clever and unpredictable.

Examples of numerous A-Life improvements in video games are provided, and you’ll examine the aptitude pitfalls of utilizing AI and the way to troubleshoot, observe A-Life for your personal video games, try A-Life itself and try nearly utilizing A-Life, enforce AI and A-Life in a multiplayer setting, and extra. Written for the present and next-generation online game developer, AI and synthetic lifestyles in games is a brilliant reference for either online game programmers and online game designers.

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Extra info for AI and Artificial Life in Video Games

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Each one takes cues from its neighbors, either based on following a “leader” (like ants) or based on the approximate distance, speed, and direction of the neighbors (like fish and birds). This behavior has been modeled by Craig Reynolds in creating flocks of “boids” that exhibit emergent behaviors by each following a set of discrete rules. The swarm behavior is based on observing changes in the actor’s immediate environment—as with AI. Each individual actor tweaks its own behavior based on a variety of inputs, and each input is weighted according to specific experiences.

Assume that it will, via a series of binary decisions, find the best path through a terrain, based on the relative success of each decision with respect to possible subsequent decisions. ) Now, add to that a GA whose purpose is to “try” various paths and come up with one that is more or less doable by combining parents to produce offspring. In this way, we breed a path solution that is unpredictable and hopefully never the same, but always logical at each step. GP can be used to modify the evaluation of what constitutes a best path, based on the terrain that would have to be negotiated, the position of the actor, and other key factors.

Chapter 2 Using Artificial Intelligence in Video Games 35 A* The A* search algorithm is also a game tree search algorithm, but without the caveat that the entire game tree needs to be known at the time it is executed. The game tree will be built as it goes along and is designed to return a path through that tree. Like the alpha-beta algorithm, A* will discard any path that is worse than the current path, but it does not take into account the alternative two-player nature in the same way. The most common illustration of A* is in its use as a navigation (mapping plus planning) algorithm.

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AI and Artificial Life in Video Games by Guy W. Lecky-Thompson


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