Game under control doesn’t work (Emrakul, the Promised End and other)

[siyiye]

After casting Emrakul, the Promised End, I can‘t control my opponent's turn.(It doesn't work after I switch)

This is a bug，Hope you can fix it perfectly.THX！

[jeffwadsworth]

[[Emrakul, the Promised End]]

[github-actions]

Emrakul, the Promised End - (Gatherer) (Scryfall) (EDHREC)

{13}
Legendary Creature — Eldrazi
13/13
This spell costs {1} less to cast for each card type among cards in your graveyard.
When you cast this spell, you gain control of target opponent during that player's next turn. After that turn, that player takes an extra turn.
Flying, trample, protection from instants

[JayDi85]

It’s can be related to wrong usage of user’s skip settings in HumanPlayer.java

[jeffwadsworth]

Hmm. I tested it with default settings and still no go. I will check earlier builds.

[JayDi85]

I mean the game can use pressed skip button and skip user settings from wrong player (not from real controller of the player). I added some todos about it somewhere in HumanPlayer long ago. Same bugs with miss priority can be appear after rollback with active skip buttons (maybe).

[JayDi85]

Also AI code can be bugged with under control effects (related to same problems with wrong usage of real controller).

[jeffwadsworth]

Sen Triplets is screwed up as well. May be related or not. #12918

[JayDi85]

I can confirm: turn control effects doesn’t work at all in human games. And your opponent must press skip button to continue without any actions (or you will lose by timeout). There are impossible to play/activate anything. And it’s not related to any settings.

[JayDi85]

AI games also affected -- you can't do anything and can only pass priority.

[JayDi85]

Added support of under control effects for human games in c076f49, cards like Emrakul, the Promised End are fully playable without game freeze. Also it contains some other game freeze fixes and gui improves.

Computer players doesn't support it yet. Maybe I'll add it later (still under investigation -- is it possible to support or not yes, it’s possible).

[JayDi85]

Old issue with more details:

• Emrakul, The Promised End bugs related to additional turn (take control of another player bugs) #2088

[JayDi85]

Take control over computer player added by 0505f51. Now you can fully control computer's actions.

It can be useful for test mode too (use cheats menu to take control over computer and setup attack/defend/casts/etc instead using two client apps).

P.S. There's one last feature left to develop: computer take control over another computer or human. It will use pass and default choice logic due too complicated use cases.

[JayDi85]

Added more stability and improved cheats in 1f1d108. Now you can take control over computer, add cards/lands by another cheats and return control. So AI will play activate priority as itself.

Emrakul, the Promised End is playable, so issue will be closed. For better AI support see #13220