62 lines
2 KiB
GDScript3
62 lines
2 KiB
GDScript3
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extends Node2D
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# A bounded ambient threat attached to the OCTOPUS biome. Like AsteroidField,
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# this node owns only the nearby presentation: the biome itself and its one
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# boss planet remain deterministic WorldGen data.
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@export var spawn_interval: float = 2.4
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@export var max_octopuses: int = 7
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@export var spawn_margin: float = 180.0
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@export var retire_distance: float = 2600.0
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@onready var fleet: Node2D = get_node("../Fleet")
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var octopus_scene: PackedScene = preload("res://boss/BossMinion.tscn")
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var active: Array = []
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var spawn_left: float = 0.0
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var spawn_count: int = 0
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func _process(delta: float) -> void:
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active = active.filter(func(o): return is_instance_valid(o))
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var in_biome: bool = WorldGen.biome_at_chunk(
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WorldGen.chunk_coords(fleet.get_centroid())) == WorldGen.Biome.OCTOPUS
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if not in_biome or GameState.intro_active:
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retire_all()
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spawn_left = 0.0
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return
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for octopus in active.duplicate():
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if octopus.global_position.distance_to(fleet.get_centroid()) > retire_distance:
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octopus.retire()
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active.erase(octopus)
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spawn_left -= delta
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if spawn_left <= 0.0 and active.size() < max_octopuses:
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spawn_one()
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spawn_left = spawn_interval
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func spawn_one() -> Node2D:
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if fleet == null or fleet.ships.is_empty():
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return null
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var visible_rect: Rect2 = ViewUtils.get_visible_world_rect(self)
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var radius: float = maxf(visible_rect.size.length() * 0.5 + spawn_margin,
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620.0)
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var angle: float = randf() * TAU
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var octopus: Node2D = octopus_scene.instantiate()
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# Ambient hatchlings are sturdy enough to harass a travelling fleet, but
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# never marked: only the boss encounter's golden hatchlings open eyes.
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octopus.max_hp = 7
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octopus.position = fleet.get_centroid() + Vector2.from_angle(angle) * radius
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get_parent().add_child(octopus)
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octopus.uses_dash_pattern = spawn_count % 3 == 2
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octopus.add_to_group("roaming_octopuses")
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active.append(octopus)
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spawn_count += 1
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return octopus
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func retire_all() -> void:
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for octopus in active:
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if is_instance_valid(octopus):
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octopus.retire()
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active.clear()
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