Community Forums: Serious Dice Error, Rolls being copied

1350250869

Description: Dice rolls in my group are being copied for each player. We play Dark Heresy, and our d100 rolls are coming up the same for the entire group when we have to roll together. Constant reproduction is possible, everybody, as long as they roll the same die type, is getting the same results every time. Reproduction: Have several people /roll the same type of die in rapid succession or all at once. Mix of Chrome and Firefox in our group, all on Windows 7

1350290215

Mr G

KS Backer

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I believe this is because the seed for the random number generator is the current time. If you all roll the same dice at the same time you get the same result. I read a post recently stating this is to be changed imminently.

1350290516

Jeremy K.

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I good way to fix the problem would be to change the seed to a random variable.

1350290622

Riley D.

Roll20 Team

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First off, sorry that this caused you trouble! In order to help, you're going to have to be more specific. Is this just with /roll 1d100, or do you see the same issue when doing /roll 10d100? Is it only d100 rolls, or also d20 rolls? And when you say "at the same time", is it literally at the exact same second? Or just "around" the same time? Is this with the 3D Dice or the non-3D Dice? Screenshots would also be helpful, or maybe the name of the campaign so I can consult the Chat Archive (if you're comfortable with that) and see what's going on?

1350290649

Riley D.

Roll20 Team

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I believe this is because the seed for the random number generator is the current time. If you all roll the same dice at the same time you get the same result. I read a post recently stating this is to be changed imminently. This is no longer how the random number generator works, which is why this is odd.

1350291720

Mr G

KS Backer

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Gosh, yes, very odd indeed in that case, unless there's been a regression issue.

1350311378

Ajax

Pro

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Having now run numerous game sessions using Roll20, I have found that there are two possible solutions, both SEEM to work although I have no idea why, The system we use is Pathfinder so it is d20 based as many games are, meaning most rolls involve rolling a d20 and adding a variable to it. I will have players roll a d100 just before rolling the d20, some players actually put a d100 roll in their macros. The other solution is to just roll a big handfull of d20's. I have found, have no idea why, if I do it using the 3D dice roller it works even better. This works for me, and our players, I don't know if it will work for the other systems.

1350415608

DM (Nick) Cannibal Herder

Pro

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This has happened to our recent game as well.

1350415638

Iden DeSeer

Plus

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Same thing is happening in my group. I'm running Dark Heresy, and two of my players keep having their d100 rolls mirroring each other.

1350415924

Jeremy K.

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This could be solved by adding an additional die to current line up. In my RL games we do not use the big golf ball to roll d100s, instead we use a regular d10 and a percentile d10, the difference is the percentile d10 has a 0 after each number.

1350416177

Roan DeSeer

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While work around's make current play work fine, it'd just be nice to have the d100 work correctly first time :) Some of our players are new to the system, we may have someone starting their very first game EVER, and we're all in completely different parts of the world, and the less fiddling about that has to be done, the better. I'm not complaining, mind, but a true fix for this would be awesome.

1350416959

Jeremy K.

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What i mean is to still use /r 1d100 in the chat bar or the macro, but instead of picking a random number between 1 and 100 it could roll a d10 for each number and add them together ( remember the percentile die represents 10,20,30,40,50,60,70,80,90 and 100) there would need to be a slight work around done by the devs to make a roll of 100 possible. It would be something like if the percentile comes up 00 and the regular comes up 0 then that represents 100, but if 00 comes up with any other number it represents 1-9. pretty simple fix really, and nothing would change on the GM/player side since they would be using the same rolls as before, the code under the hood is the only thing that would change.

1350417407

Jeremy K.

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How does the random number generator get its results?

1350418178

Riley D.

Roll20 Team

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If any of you guys who are having issues with this could answer my questions regarding further details, that will certainly help move us toward finding out the root of the problem and getting a solution... In order to help, you're going to have to be more specific. Is this just with /roll 1d100, or do you see the same issue when doing /roll 10d100? Is it only d100 rolls, or also d20 rolls? And when you say "at the same time", is it literally at the exact same second? Or just "around" the same time? Is this with the 3D Dice or the non-3D Dice? Screenshots would also be helpful, or maybe the name of the campaign so I can consult the Chat Archive (if you're comfortable with that) and see what's going on?

1350418389

Roan DeSeer

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We only used /roll 1d100 and had it happen. It did not seem to affect other rolls with other dice. For our group, there was no 'at the same time'. When one group member rolled, and then I needed to make a roll 30+ seconds later, it would copy the previous roll result. We are using 3D dice. I will ask our GM to fill in the rest of your requested info tomorrow :)

1350485270

Iden DeSeer

Plus

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DM for Roan D. here; we've been using just the d100s, as she said. The players have been rolling them one at a time and in groups of up to 3 and having the same results pop up, even when spaced apart by up to a full thirty seconds to a minute. I'm going to try and get the two players in question (Roan D. and Geoffrey R.) together to test this out and see if things persist under differing conditions, I'll post more up when I have more details. The campaign name is Dark Heresy - Life in the Deeps, by all means please take a look if you think it will help get a better grasp of how things are working.

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Serious Dice Error, Rolls being copied