26 lines
914 B
GDScript
26 lines
914 B
GDScript
## Contain a subset of notes in a [NoteArray].
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## Notes are expected to be sorted in ascending order by beat.
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## The original index of a note can be found with [method id_at].
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class_name NoteSubset extends NoteArray
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## The array where notes in this subset come from.
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var full_set: NoteArray
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## The ID (index of note in full_set) of the note at [param index].
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func id_at(index) -> int:
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return _ids.get(index)
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## Parse the given [param notes] and return a [class NoteSubset]
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## containing only notes in [param lane].
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static func get_notes_in_lane(notes: NoteArray, lane: int) -> NoteSubset:
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var lane_notes: NoteSubset = NoteSubset.new()
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lane_notes.full_set = notes
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for i in range(notes.size( )):
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if notes.lane_at(i) == lane:
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lane_notes._ids.append(i)
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lane_notes.append_note_data(notes.beat_at(i), notes.type_at(i), lane)
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return lane_notes
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## ====== IMPLEMENTATION ====== #
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var _ids: Array[int] = []
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