How does Pokémon trainer/gym leader/ E4 AI work?

Question

Some trainers and Gym leaders have a strategy some are just stupid. What’s the AI for these in game decisions?

Comments

isn't it randomized ?

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Well yes, but there is always a strategy. For example, I think I remember Gen 1 E4 going for most effect moves first.

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what??

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I’m just wondering how it works. If there is an AI pattern.

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I am feeling it from my experience of playing games and observing this till gen4 .the usual trainers you find in routes have Pokémon which are like wild Pokémon but their level is different (like a level 12 metapod only knows harden and not tackle )but you obviously can't catch them

The gym leaders are  similar but their Pokémon's moves are formatted (like onix knowing rock tomb)
The elite four are just like very tough gym leaders but they use yes or no

The AI says (let's take lance) ( champion)
If your Pokémon is weak to electric move it will use thunder if not then dragon rush (if it is not steel )

Sometimes the strategy is just a fixed sequence of moves .
Pls note I am answering on the knowledge I obtainedupon observing these NPCs .

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What does "moves are formatted" and "they use yes or no" mean?

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Gosh I didn't realize I didn't answer it but commented it

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You answered it, and then I converted it into a comment. Can you answer my questions now?

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Hi, I think I got it. Just tell me for reconfirming that I have to tell you the pattern of each Gym leader and Elite four? (if I have to tell other important battles, tell that too)

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(phew, this question's author still exists)

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(I don't mean I did any illegal method to find the answer, I've just played Fire Red too many times(5))

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I’m trying to know specifically the AI, specifically how the moves selected are based. Will it always go for a super effective move, will it always go for maximum damage, will is always use a recover move under a specific condition, is it always going to be a 1/4 chance, etc.

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Different trainers have different AI “sets” that analyze what is going on and decides what to do off of them- coded into the logic of the game. I may try to find a list of such decisions for every game, but it may take a while. Also, why no Gen 3? If this question becomes useful, having all games, even if you don’t need their info, would help a lot of other people. :P

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if you okay with gen 3, I can unhide my answer :D

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Slightly edited the question

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K good

Answer 1

Moves selection are not fixed for most Pokemon in FRLG. Let me go poke by poke.
1) brock's geodude mostly always goes for defence curl for few turns. then it starts attacking.
2) similarly to geodude, onix also likes to put up some hardens. or else it will start binding.
3)Even misty staryu loves to use harden. after it has used 2 or 3 hardens if its in red or about to be red health, it goes for recover if not, then it spams water pulse.
4) lt.surge's volt orb screeches a lot and uses sonic boom mostly.
5) pikachu likes to uses double team and thunder wave. if you didn't attack it will go for quick attack.
6) raichu loves the same thing. But it goes for attacks more frequently. Yes here it checks whether you're scrreched Pokemon or not, then decides shock wave or quick attack.
7) If you're weak to erika's moves, those Pokemon will go for attacks. If not, they love putting status so that vileplume can finish you.
8) koga's koffings like to explode with self destruct or toxic you.
9). His muk likes minimizing and acid armoring a lot. Then it procedes to kill all Pokémon of yours. Weezing has no particular move choices. Goes for some thing by 1/4 Times.
10) Blaine's pony bounce and fire spin a lot, small dogy likes take down and blast of fire and big doggy likes fire blast and roaring and sometimes biting.
11) Giovanni's 1st rhyhorn likes scary face and almost guarantees that it'll go for it. Or else rock blasting or quaking.
12) others are usually using their normal type moves or quaking. Rhyhorn is similar to first one, just depends if the front Pokémon of yours has speed lowered or not.

Also please note that these are usually not always. I've played FR many times and this has usually happened. But it doesn't mean they 'always' follow this or else most Pokemon challenge youtubers would not be able to complete there challenges. :P
source: my playthroughs
( I'll update this soon)

Comments

"For all generations except 3"

You included FrLg, which is gen3!