Set files

data/<namespace>/tcg/sets/<set>.json. The Base Set file:

{
  "name": "Base Set",
  "total": 102,
  "model_data_base": 1000,
  "wrappers": ["charizard", "blastoise", "venusaur"],
  "wrapper_pokedex": { "charizard": 6, "blastoise": 9, "venusaur": 3 },
  "pack_slots": [
    { "count": 1, "rarities": { "rare_holo": 1, "rare": 2 }, "use_config_holo_chance": true },
    { "count": 3, "rarities": { "uncommon": 1 } },
    { "count": 7, "rarities": { "common": 1 } }
  ]
}

Field	Required	Description
name	yes	Shown on packs (Base Set Booster Pack), tooltips and in commands
total	yes	Printed card count, shown as 4/102
model_data_base	yes	Start of the set's custom_model_data range. Give every set its own range: Base Set uses 1000, Jungle 2000
wrappers	no	The pack designs, picked at random for each pack. Default ["default"]
wrapper_pokedex	no	National Pokédex number per wrapper: Cobblemon's model of that Pokémon is drawn as the pack's mascot
pack_slots	yes	What a pack holds, see below

Pack slots

Each slot rolls count cards. For every card it picks a rarity from the rarities weights, then a random card of that rarity. A card never appears twice in a pack: a rarity that has no unused cards left is skipped.

Field	Description
count	Cards rolled by this slot
rarities	Weight per rarity: common, uncommon, rare, rare_holo
use_config_holo_chance	When true, rare_holo gets exactly the packs.holoChance chance and the other rarities share the rest by their weights

With packs.packSize different from the slot total, the difference is added to or taken from the last slots.

Cards of a rare_holo rarity come out of packs as holo prints; all others as regular prints.

Models and textures

Card stacks use custom_model_data = model_data_base + number * 2 for the regular print and + 1 for the holo print. Packs use model_data_base + wrapper index. Every wrapper needs textures at assets/cobblemontcg/textures/tcg/pack/<set>_<wrapper>.png, _mascot.png and _overlay.png; see Textures & art.