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52 lines
1.1 KiB
GDScript
52 lines
1.1 KiB
GDScript
@icon("res://behaviours/spawner.svg")
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extends Node2D
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class_name Spawner
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## Emitted when a new scene is spawned.
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signal spawned(entity: Node2D)
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## Emitted when a spawn fails due to the spawner being disabled.
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signal spawn_blocked
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## The scene to spawn.
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@export var scene: PackedScene
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## Where the scene should be parented to in the tree.
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@export var target: Node2D
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## Whether calling [method spawn] does instantiate a scene.
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@export var enabled: bool = true
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func enable():
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enabled = true
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func disable():
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enabled = false
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## Spawn [field scene] at [field target] and the position of this node.
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func spawn():
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if not enabled:
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spawn_blocked.emit()
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return null
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if not target:
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target = MainGame.get_via_group(self).default_spawn_parent
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if not target:
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target = self
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if not scene:
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Log.w(self, "Not spawning, no scene is set.")
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return null
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var entity = scene.instantiate()
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entity.global_position = global_position
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target.add_child(entity)
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spawned.emit(entity)
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return entity
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func roll_spawn(odds: int):
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if Random.rng.randi_range(0, odds - 1) == 0:
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spawn()
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func log_spawned(entity: Node2D) -> void:
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Log.p(self, "Spawned: %s" % entity)
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