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# Beginning Fuzzy logic?

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### #1newbie_gamer  Members   -  Reputation: 124

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Posted 24 December 2011 - 09:37 AM

I was wondering if I should implement fuzzy logic for my game in which the AI has to select weapons and different attacks and defend options...
Also I want to know how tough is it to implement fuzzy logic.. After understanding the theory can it be done within a month.. I'm running on a tight schedule here!!

### #2IADaveMark  Moderators   -  Reputation: 2758

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Posted 24 December 2011 - 11:00 AM

I was wondering if I should implement fuzzy logic for my game in which the AI has to select weapons and different attacks and defend options...
Also I want to know how tough is it to implement fuzzy logic.. After understanding the theory can it be done within a month.. I'm running on a tight schedule here!!

You sure you want "fuzzy logic" in the classic sense or simply "variable importance of criteria". Big difference.

Ironically, the weapon selection/who to attack problem is exactly the main example in the last half of my book. *shrug*

The gist is, however, create values and weights for different ideas, tweak them as necessary when combined with other considerations, score things, add things, and then pick the best one. It's actually not that hard to get started.
Dave Mark - President and Lead Designer of Intrinsic Algorithm LLC

Professional consultant on game AI, mathematical modeling, simulation modeling
Co-advisor of the GDC AI Summit
Co-founder of the AI Game Programmers Guild
Author of the book, Behavioral Mathematics for Game AI

Blogs I write:
IA News - What's happening at IA | IA on AI - AI news and notes | Post-Play'em - Observations on AI of games I play

"Reducing the world to mathematical equations!"

### #3IADaveMark  Moderators   -  Reputation: 2758

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Posted 24 December 2011 - 11:02 AM

Oh... and from another thread, this is a column I wrote for Game Developer Magazine a year ago that might give you some ideas.

Getting More Behavior out of Numbers
Dave Mark - President and Lead Designer of Intrinsic Algorithm LLC

Professional consultant on game AI, mathematical modeling, simulation modeling
Co-advisor of the GDC AI Summit
Co-founder of the AI Game Programmers Guild
Author of the book, Behavioral Mathematics for Game AI

Blogs I write:
IA News - What's happening at IA | IA on AI - AI news and notes | Post-Play'em - Observations on AI of games I play

"Reducing the world to mathematical equations!"

### #4Franck Dernoncourt  Members   -  Reputation: 142

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Posted 24 December 2011 - 11:34 AM

Also I want to know how tough is it to implement fuzzy logic.. After understanding the theory can it be done within a month.. I'm running on a tight schedule here!!

Pretty straightforward. Check out the book entitled "Programming Game AI by Example". Chapter 10 on Fuzzy Logic has many code examples (C++). There are also many fuzzy logic libraries available.

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