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Rockybrain

Based on game build 714014 | Last updated: 2026-03-03

Overview​

RockyBrain is a behavior tree–driven AI brain for the boss entity Rocky. It orchestrates high-level decision-making including combat engagement with chase/attack logic, shield deployment when damaged, panic-driven loyalty loss, and opportunistic eating or item pickup. The brain extends BrainCommon and integrates components for combat, follower loyalty, inventory, and known locations to coordinate emergent behavior during boss encounters.

Usage example​

local inst = CreateEntity()
inst:AddBrain("rockybrain")
-- The brain automatically activates on stategraph start and begins managing behavior via its behavior tree

Dependencies & tags​

Components used: combat, eater, follower, inventory, inventoryitem, knownlocations
Tags: Checks notarget, edible_ELEMENTAL, _inventoryitem, INLIMBO, fire, catchable, outofreach; does not add or remove tags.

Properties​

No public properties

Main functions​

OnStop()​

  • Description: Cleans up the "epicscare" event listener and resets the scare timer. Called when the brain stops executing (e.g., when the stategraph exits its root state).
  • Parameters: None.
  • Returns: Nothing.

OnStart()​

  • Description: Initializes and starts the behavior tree. Registers an "epicscare" callback to extend panic duration, and constructs a prioritized root node containing sequential sub-trees for panic response, combat, eating/pickup, following, facing, and wandering.
  • Parameters: None.
  • Returns: Nothing.

Events & listeners​

  • Listens to: epicscare – updates scareendtime to extend the panic window (used by ScaredLoseLoyalty to potentially drop loyalty).
  • Pushes: None directly; delegates events to stategraph and behavior tree infrastructure.