Cobblemon KO Streak Shiny

Each wild Pokémon a player defeats counts toward a KO streak. Defeating another wild Pokémon of the same species increases the streak by 1, while defeating a different species resets it to 1. As a streak grows, the species it tracks becomes more likely to spawn nearby with a shiny variant, so a long hunt on one species is rewarded with better odds.

Chances are organized into thresholds. By default a streak of 101 or more grants 2 extra chances, 301 or more grants 3, and 501 or more grants 4. Players who have not reached a threshold keep a single base chance. When several players are nearby and one of them has reached a threshold for the spawning species, the highest streak among those players determines the bonus. The spawn range that counts a player's streak defaults to 64 blocks and can be changed in the config. The base shiny rate comes from the Cobblemon config and defaults to 8196.

Installation requires Cobblemon and Fabric Language Kotlin, and the mod runs on Fabric for 1.19.2 only. It is server-side only, so players join without installing anything. The mod is open source under the MIT License. The author has said it will receive only bug fixes going forward.