Least 1 of Dice after taking highest less than TN?

Least 1 of Dice after taking highest less than TN?

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Sun Dec 10 00:12:29 2017   by   Razorfire
Torben

Hello, I am running a local instance of troll and am trying run the numbers for a D20 based roll and keep mechanic.

Basic mechanic, roll a dicepool of D20s, 5 is average. Two of Dice are unique for generating wild results.
Take the 2 highest than rolled less than a TN, 10 is default, add them up to get your action total. If none base action total is 0.  If unique dice pair are a match, and the number matched is less than your 1-20, 10 average, attribute. You add that to your  base action total.

Then I want to take the least 1 of the remaining dice in the pool that is less than or equal to skill level 1-20ish as the result number.

However, I am running into out of memory issues getting the remaining dice in the pool to evaluate for  the least one. There are a lot of variables so I don't know if that is an issue.  Appreciate any help you can provide. 

 
Mon Dec 11 09:42:51 2017   by   Torben
The number of variables in itself is not an issue, but a large number of large dice can, indeed, make Troll choke.  Here is a trick that you can use to reduce the memory usage:

Since numbers greater than TN are not counted, you can replace all numbers over TN by 0, i.e, replace each d20 by choose {1..TN, (20-TN)#0}.

If you also use the same dice to compare to the skill level, you might want to use max {TN, skill} instead of TN in the above.

This trick will not help if TN or skill are close to 20, but if they are close to 10, it can make a substantial difference.
 

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