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hella-farm/behaviours/spawner.gd
2024-04-19 04:30:35 +02:00

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GDScript

@icon("res://behaviours/spawner.svg")
extends Node2D
class_name Spawner
## Emitted when a new scene is spawned.
signal spawned(entity: Node2D)
## Emitted when the [field blocking_tracker] prevents something from spawning.
signal spawn_blocked
## The scene to spawn.
@export var scene: PackedScene
## Where the scene should be parented to in the tree.
@export var target: Node2D
## If set, requires the tracker to not be tracking anything before spawning a scene.
@export var blocking_tracker: Tracker
## Spawn [field scene] at [field target] and the position of this node.
func spawn():
if blocking_tracker != null:
if not blocking_tracker.tracking.is_empty():
spawn_blocked.emit()
return # Perhaps enqueue the spawn?
if not target:
target = MainGame.get_via_group(self).default_spawn_parent
if not target:
target = self
var entity = scene.instantiate()
entity.global_scale = global_scale
entity.global_position = global_position
entity.global_rotation = global_rotation
target.add_child.call_deferred(entity) # Not sure why this is needed.