Adrien Ufferte
150 lines
4.3 KiB
GDScript
150 lines
4.3 KiB
GDScript
class_name TracingManager
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extends Control
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signal finished()
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const LETTER_SEGMENT_CLASS: PackedScene = preload("res://sources/look_and_learn/letter_segment.tscn")
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const EXTENSION: String = ".csv"
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@export var label_settings: LabelSettings
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@onready var lower_labels: HBoxContainer = %LowerLabels
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@onready var upper_labels: HBoxContainer = %UpperLabels
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func _process(_delta: float) -> void:
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place_segments(upper_labels.get_children())
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place_segments(lower_labels.get_children())
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func place_segments(labels: Array) -> void:
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for label: Label in labels:
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for segment: LetterSegment in label.get_children():
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segment.global_position = label.global_position + label.size / 2.0 + Vector2(0.0, 72.0)
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func reset() -> void:
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for child: Node in upper_labels.get_children():
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child.queue_free()
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for child: Node in lower_labels.get_children():
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child.queue_free()
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lower_labels.visible = false
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upper_labels.visible = false
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await get_tree().process_frame
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func setup(grapheme: String) -> void:
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await reset()
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for letter: String in grapheme:
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var tracings: Dictionary = _get_letter_tracings(letter)
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if tracings.upper:
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setup_tracing(letter, tracings["upper"] as Array, upper_labels, false)
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if tracings.lower:
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setup_tracing(letter, tracings["lower"] as Array, lower_labels, true)
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func setup_tracing(letter: String, letter_tracings: Array, parent: Control, lower: bool) -> void:
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var label: Label = Label.new()
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label.set_anchors_and_offsets_preset(Control.PRESET_CENTER)
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label.size_flags_horizontal = Control.SIZE_SHRINK_CENTER
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label.size_flags_vertical = Control.SIZE_SHRINK_CENTER
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label.horizontal_alignment = HORIZONTAL_ALIGNMENT_CENTER
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label.vertical_alignment = VERTICAL_ALIGNMENT_CENTER
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label.label_settings = label_settings
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if lower:
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label.text = letter.to_lower()
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else:
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label.text = letter.to_upper()
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parent.add_child(label)
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for points: Array in letter_tracings:
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var segment: LetterSegment = LETTER_SEGMENT_CLASS.instantiate()
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label.add_child(segment)
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segment.setup(points)
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func _get_letter_tracings(letter: String) -> Dictionary:
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var lower_tracing: Array = _load_tracing(_lower_path(letter))
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var upper_tracing: Array = _load_tracing(_upper_path(letter))
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return {"lower": lower_tracing, "upper": upper_tracing}
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func _load_tracing(path: String) -> Array:
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if not FileAccess.file_exists(_real_path(path)):
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return []
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var segments: Array = []
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var file: FileAccess = FileAccess.open(_real_path(path), FileAccess.READ)
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var error: Error = FileAccess.get_open_error()
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if error != OK:
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Logger.error("TracingManager: Load tracing: Cannot open file %s. Error: %s" % [_real_path(path), error_string(error)])
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return segments
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if file == null:
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Logger.error("TracingManager: Load tracing: Cannot open file %s. File is null" % _real_path(path))
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return segments
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while not file.eof_reached():
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var points: Array[Vector2] = []
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var line: PackedStringArray = file.get_csv_line()
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for element: String in line:
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if element == "":
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break
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var elements: PackedStringArray = element.split(" ")
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points.append(Vector2(float(elements[0]), float(elements[1])))
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if not points.is_empty():
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segments.append(points)
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return segments
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func _lower_path(letter: String) -> String:
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return letter + "_lower"
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func _upper_path(letter: String) -> String:
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return letter + "_upper"
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func _real_path(path: String) -> String:
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return Database.BASE_PATH.path_join(Database.language).path_join(Database.TRACING_DATA_FOLDER).path_join(path) + EXTENSION
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func start() -> void:
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if upper_labels.get_child_count(false) > 0:
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lower_labels.visible = false
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upper_labels.visible = true
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await demo_labels(upper_labels)
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await start_labels(upper_labels)
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if lower_labels.get_child_count(false) > 0:
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lower_labels.visible = true
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upper_labels.visible = false
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await demo_labels(lower_labels)
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await start_labels(lower_labels)
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finished.emit()
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func start_labels(labels_parent: Control) -> void:
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for letter: Node in labels_parent.get_children():
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for segment: LetterSegment in letter.get_children():
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segment.start()
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await segment.finished
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letter.move_child(segment, 0)
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func demo_labels(labels_parent: Control) -> void:
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for letter: Node in labels_parent.get_children():
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for segment: LetterSegment in letter.get_children():
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segment.demo()
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await segment.finished
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