YGOPRO Forum

Did you experience any bugs or error messages not listed here? Can you provide information about an issue currently under investigation? Or do you still experience an issue, that should be fixed already? Feel free to post it here, or in a new thread.

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Edited by user Sunday, September 27, 2015 5:23:25 PM(UTC)  | Reason: Not specified

Updated for v0.31a.

Replays are recorded by tracking player input. AI script does not produce player input. This complicates things significantly, from what I understand. I do not know all the inner workings of the AI, but massive changes have to be implemented to make the AI either simulate player input, or to track the AI decisions in a different way somehow. Also, since the AI script updates quite regularly, and people might have local differences in AI scripts, this causes additional problems. My own AI script is pretty much constantly different from the official version as I apply fixes, so the replay files must be either independant of the local AI script, or store the AI scripts in the replay.

Anyway, it would be complicated, a lot of work, and it doesn't have a high priority. I agree, that it would be very useful for AI debugging. But I can understand, why its not implemented yet.

Depends on the realization. If you make the AI generate player input to store in the replay, or if you only track the AI output, then the replay would be independent. That would make the most sense probably. But maybe that is not possible, and the AI script has to be run based on stored player input or something.

Hi Snarky, is it possible to improve the way the AI deals with the opponent's scale? Right now it destroys a scale only when its effect is activated or when the 2nd one is played.
Imho, a better logic could be:
The AI decides to pop a scale if
1) There are scales whose difference is 2 or more
2) One scale is Insight Magician and the other is a Magician
3) One scale is Luster Pendulum, the Dracoslayer
4) Both scales are Yosenju Shinchu R
5) When a scale activates its effect
In these cases the AI chooses to pop respectively:
1) A random scale
2) Insight Magician
3) Luster Pendulum, the Dracoslayer
4) Yosenju Shinchu R
5) The scale that activates its effect
And maybe add an exception for Performage Flame Mascot, so that it doesn't pop it unless it has exausted any other viable move.
I don't know if all this is doable, but it would be nice to have an AI that can't be tricked into popping a useless scale.

EDIT: Another thing. Is it possible to implement a logic that makes the AI use the opponent's Chicken Game. Something like this is probably more than enough:
1) If the AI has more LP than the opponent and can deal damage to the opponent, pop Chicken Game
2) In any other case, draw (unless it has less than X LP or less than Y cards in the Main Deck, in that case not using it is probably the right move)
Again, I don't know if it's doable, but right now is almost impossible for the AI to win if the opponent has Chicken Game on the field.

Edited by user Wednesday, September 30, 2015 7:49:16 PM(UTC)  | Reason: Not specified

Thanks for the feedback and the concrete logic. I'll look into it.


Forgot about that, will be added.


I did find an error in the part handling that. So this specific issue might be fixed in 0.31a, but I didn't test it thoroughly yet.


When does this happen? I did not notice an MST misfire in a long time, and Torrential seems to be used somewhat decently as well. Do you have a screenshot, or steps to reproduce? Did you notice an error message? I know of an issue in the Magician script, that makes Dragonpit Magician target its own cards with the discard effect, but MST seems to work just fine.

Hi Snarky, I found 2 things that don't work properly.
1) Dust Tornado is used to destroy Normal Spells and such
2) When I attack a Nekroz monster and the AI has both Valkyrus and Gungnir, both are activated at the same time

I don't know if you already fixed these issues in the experimental versions, I'm currently using v0.31 for Android.

Dust Tornado is in the AI_Yugi deck, actually.
About the 2nd problem, it may be possible to circumvent it by adding some conditions to the individual cards. As I see it, the simplest way to make it work is to use Gungnir only to prevent destruction by a card's effect. A better logic could be implemented, but that would require taking into account cards that modify the ATK of monsters (particularly Honest and Limiter Removal) and to compare the AI's LPs to the ATK difference, so it would be much more complicated.
Another thing that I noticed is that the AI tends to use Unicore too early or to use it as an XYZ Material when it would be more useful to keep it on the field. Since the AI doesn't know what the opponent plays it should avoid making a turn 1 Unicore and it should not use it as an Xyz Material if the opponent has a monster summoned from the Extra Deck (idk if that's feasible).
The last thing I noticed is that the AI tends to use Valkyrus's tributing effect too much, like making a turn 1 Unicore and Valkyrus just to tribute them. The simplest way to solve this issue would be to make a blacklist of monsters that Valkyrus shouldn't tribute (that should include at least any Ritual Nekroz in the hand, any Manju/Senju in the hand, any Ritual Nekroz on the field excluding Trishula), while prioritizing Manju/Senju on the field as tributes.

Edited by user Tuesday, October 06, 2015 7:29:26 PM(UTC)  | Reason: Not specified

Thank you for your answers. I rarely use characters' decks myself, unless they come out at random, and in that case I usually surrender :).
About the Nekroz logic, I get what you're saying, besides it's not like its logic and plays are overall bad, it's just that with it being an AI deck most people use it to test things, so I think it should play without much consideration to the meta and the ways of thinking that go with it, but more on a turn-to-turn basis, so that it plays at a reasonably satisfying level against most decks, meta or not.

It may have just been because something in an older version of YGOPRO was to blame, however, I encountered a virus detected by my norton antivirus described as WS.reputation1 or something like that. I've encountered the same before related to another program or modification to one but just wanted to let you know. As for now, I have deleted and am reinstalling the newest update clean install...