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.