CobblemonBahaviours

It's a server-side Fabric addon for Cobblemon (1.21.1) that makes wild Pokemon feel alive by giving them aggressive and timid behaviors.

Core Behaviors

Aggressive Pokemon

- Actively hunt and attack players within range (default 16 blocks) - Use their actual moveset to deal damage — move power, Pokemon stats, and accuracy all factor in - Apply secondary effects from moves: burns set you on fire, paralysis slows you, poison applies the poison effect, etc. - Spawn type-appropriate particles on hit (e.g., fire impact for Fire moves) - Higher levels (1–5) = more damage, faster attacks, shorter cooldowns

Timid Pokemon

- Flee from players when detected within range (default 10 blocks) - Higher levels = faster flee speed

Natural Spawning

- Wild Pokemon have a random chance to spawn with a behavior (5% aggressive, 10% timid by default) - Higher levels are exponentially rarer - Only in whitelisted dimensions (overworld by default)

Player Interaction

- Oran Berry (right-click): calms aggressive Pokemon in an 8-block radius - Pecha Berry (right-click): soothes timid Pokemon nearby - Works with /pokespawn — e.g., /pokespawn charizard aggressive=3

Key Design Principles

- Additive AI: injects goals via GoalSelector without overwriting Cobblemon's existing AI - Never targets owned Pokemon or Pokemon in battle - Fully configurable via config/cobblemonbehaviours.json (damage, ranges, spawn rates, items, cooldowns, etc.) - Server-side only — no client mod needed

In short: it turns wild Pokemon from passive decorations into dynamic encounters — some will chase you down and fight using real moves, others will run away when you approach.