Author Topic: Bluetooth - Different play on each tablet  (Read 468 times)

brian0775

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Bluetooth - Different play on each tablet
« on: January 17, 2015, 03:19:11 PM »
When playing over Bluetooth the two games on the two tablets sometimes diverge and things get snarled up. This happens because of dfifferrent decisions by corresponding robots on the two tablets and happens quite a lot if the software versions on the two tablets are different.

I am absolutely certain of the fact that it occasionally happens when the software on both tablets is the same. This is possible if the robots sometimes make (pseudo) random decisions based on different pseudo random number streams.

Also, sometimes the Brij2 scores on the two tablets are dfferent.

Also, my playing partner has reported that sometimes the Brij2 scores change to different values after a few seconds

BriJ

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Re: Bluetooth - Different play on each tablet
« Reply #1 on: January 19, 2015, 11:55:10 AM »
Hi Brian,

At present, each player in a Bluetooth link must have identical Convention Cards as well as the same version number of BriJ. There are plans to lift this restriction in a later release. This is posted elsewhere in the forum.

Robot play doesn't currently use random choices for the card to play, though there is good reason to do so and the technique may appear in future (after lifting the above restriction).

BriJ2 scores also depend on the Convention Card (because play is influenced by the bidding), so could differ if conventions aren't identical.

Perhaps you could email bjsoftware42@gmail.com if you can add any detail to the "Brij2 scores change to different values after a few seconds" issue, or any of the other points you've noted?

Thanks for your contribution.

« Last Edit: January 19, 2015, 11:57:03 AM by BriJ »

brian0775

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Re: Bluetooth - Different play on each tablet
« Reply #2 on: January 19, 2015, 07:40:57 PM »
In fact both tablets are were using 3.13.2 and are showing default convention cards. You can not change the conventions under 3.13.2 but one of the tablets does have Pro on it

I will watch out for changing Brij2 results and let you know

BriJ

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Re: Bluetooth - Different play on each tablet
« Reply #3 on: February 21, 2015, 05:30:03 PM »
The restriction that both devices must be on the same Release and be set up with identical Bidding Conventions is lifted at Release 4.08.
[For the background to this: Robot bids now originate at the end that starts the Bluetooth connection (the Server).
The other end (the Client) will show hints for robot bids appropriate to the Server Conventions. However Client hints for manual bids are based on Client Bidding Conventions].

Hope this makes sense
;D