Skip to content

Distribution Template

Jump to bottom
CAS_ual_TY edited this page Oct 11, 2023 · 1 revision

The easiest way to create dsitributions is to just copy a big distribution file and adjust it (like the "booster_pack_with_starlight_rare" distribution). On this page there is a list of all json attributes.

This might get a little complicated here. Example is at the bottom.

1. Json Keys and Values

name String // eg. "booster_pack"; Unique identifier of the distribution; Convention is to keep it equal to the filename (without file-ending)
pulls Pull[] // A pull is a permutation (constellation) of rarities you can pull when opening this set once (eg. 7 Commons + 1 Rare + 1 Super Rare versus 7 Commons + 1 Rare + 1 Secret Rare; these are 2 different pulls)

Pull json element type

weight Integer // The chance (this value weighted against the sum of all pulls) of getting this pull with its entries; To calculate the exact probability of getting this pull you divide this number by the sum of weights of all pulls (including this one)
entries PullEntry[] // Each entry represents an amount of cards available in a set of rarities you can pull in this set

PullEntry json element type

count Integer // The amount of cards rarities String[] // The rarities permitted to use; Usually this is just a single rarity, but sometimes they are used interchangeably (eg. Commons, Short Prints, and Super Short Prints technically share the same slots)

Example

The example is the distribution of tournament packs (https://github.com/CAS-ual-TY/YDM2-DB/blob/main/ydm_db/distributions/tournament_pack.json). Here you have essentially the following configuration:

  • "weight": 65 for 3 Commons
  • "weight": 36 for 2 Commons + 1 Rare
  • "weight": 6 for 2 Commons + 1 Super Rare
  • "weight": 1 for 2 Commons + 1 Ultra Rare

The total weight of all of these together is 65+36+6+1 = 108. This leaves us with the following probabilities:

  • 36/108 = 1/3: A 1 in 3 chance to get 2 Commons + 1 Rare
  • 36/108 = 1/18: A 1 in 18 chance to get 2 Commons + 1 Super Rare
  • 1/108: A 1 in 108 chance to get 2 Commons + 1 Ultra Rare, or every 6th Super Rare is replaced by an Ultra Rare
  • With the default just being 3 Commons

Clone this wiki locally