40 lines
933 B
GDScript3
40 lines
933 B
GDScript3
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class_name ConditionalSpawnGroup extends DeferredSpawnGroup
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var condition: String
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var dynamic := false
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@onready var _exprobj := Expression.new()
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func _ready() -> void:
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super()
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_build_expr()
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_try_spawn_or_despawn()
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func _physics_process(_delta: float) -> void:
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if dynamic:
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_try_spawn_or_despawn()
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func _build_expr() -> void:
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if _exprobj.parse(condition) != OK:
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push_error((
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"Couldn't parse condition `%s` " +
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"for conditional spawn group %s: %s"
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) % [
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condition, self, _exprobj.get_error_text()
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])
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dissolve()
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func _try_spawn_or_despawn() -> void:
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var belongs: bool = not not _exprobj.execute([], Storyboard.save_data)
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if _exprobj.has_execute_failed():
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push_error((
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"Couldn't evaluate condition `%s` " +
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"for conditional spawn group %s: %s"
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) % [
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condition, self, _exprobj.get_error_text()
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])
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queue_free()
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elif belongs: spawn()
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elif not belongs: despawn()
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if not dynamic: dissolve()
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