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Sgalterguardian Phase2

Based on game build 714014 | Last updated: 2026-03-08

Overview​

SGalterguardian_phase2 defines the stategraph for the Alter Guardian's Phase 2 boss encounter. It orchestrates movement, animation, combat, and attack selection using a set of named states (spawn, idle, atk_chop, spin_pre, spin_loop, spin_pst, atk_summon, antiboat_attack, death, etc.). It integrates closely with the health, combat, locomotor, timer, lootdropper, and workable components to control behavior during each phase of the fight. The stategraph handles AI targeting, timing of attacks (including conditional cooldowns), camera shake, sound effects, and visual FX.

Usage example​

This stategraph is not added manually to entities. Instead, it is loaded as part of the Alter Guardian Phase 2 prefab's initialization logic. It is returned as a registered stategraph named "alterguardian_phase2" and referenced via inst.sg:GoToState("state_name") from within the boss component logic.

Dependencies & tags​

Components used: health, combat, locomotor, timer, lootdropper, workable
Tags: busy, noaoestun, noattack, nosleep, nostun, idle, canrotate, canroll, attack, spin, dead (added conditionally per state)
Tags checked: brightmareboss, brightmare, INLIMBO, FX, NOCLICK, playerghost, flight, invisible, notarget, noattack, _health, CHOP_workable, HAMMER_workable, MINE_workable, smashable, player

Properties​

No public properties — the component is a StateGraph object and does not expose state or data fields to external code.

Main functions​

This file does not define any external callable functions (e.g., inst:DoSomething()), only internal helper functions used within the stategraph (e.g., set_lightvalues, do_gestalt_summon, spawn_spintrail). These helpers are called during state transitions, timeline events, or updates.

set_lightvalues(inst, val)​

  • Description: Adjusts the boss’s light intensity, radius, and falloff based on a normalized input value val (0.0–1.0). Used during spawn, death, and idle to simulate charging or dying light effects.
  • Parameters: inst (Entity instance), val (number) — intensity scaling factor.
  • Returns: Nothing.

spawn_spintrail(inst)​

  • Description: Spawns FX prefabs (alterguardian_spintrail_fx, mining_moonglass_fx) at a calculated offset in front of the boss to indicate spin direction and motion.
  • Parameters: inst (Entity instance).
  • Returns: Nothing.

do_gestalt_summon(inst)​

  • Description: Spawns five smallguard_alterguardian_projectile prefabs in a spreading, alternating pattern behind the boss toward the target’s position, eachDelayed by 3*FRAMES.
  • Parameters: inst (Entity instance).
  • Returns: Nothing.

Events & listeners​

  • Listens to:

    • doattack — triggers conditional attack state transition based on target position, cooldowns, and validity.
    • animover — returns to idle state after most animations complete.
    • healthdelta, invincibletoggle, locomote, entity_droploot, phasetransition — propagated from component events; handled via CommonHandlers and custom EventHandler entries.

  • Pushes:

    • phasetransition — fired on death timeout to trigger next phase logic (e.g., Phase 3 transition).
    • healthdelta, invincibletoggle, locomote, entity_droploot — inherited from component behavior.