Update note visuals.

rhythm_game/note/visual/hold/hold_note.gd

@@ -1,4 +1,18 @@
 class_name HoldNote extends NoteVisual
 
+@export var start: Node2D
+
+@export var end: Node2D
+
 var start_id: int
 var end_id: int
+
+func reset() -> void:
+	start_id = -1
+	end_id = -1
+
+func in_use() -> bool:
+	return start_id >= 0 or end_id >= 0
+
+func update(beat: float) -> void:
+	pass

rhythm_game/note/visual/hold/hold_note.tscn

@@ -1,3 +1,39 @@
 [gd_scene format=3 uid="uid://dq5ocf0272tet"]
 
-[node name="HoldNote" type="Node2D" unique_id=495232990]
+[ext_resource type="Script" uid="uid://cbsnb8bdby0d" path="res://rhythm_game/note/visual/hold/hold_note.gd" id="1_5cv34"]
+
+[node name="HoldNote" type="Node2D" unique_id=320259211]
+script = ExtResource("1_5cv34")
+metadata/_custom_type_script = "uid://cbsnb8bdby0d"
+
+[node name="NoteStart" type="Node2D" parent="." unique_id=1911676927]
+
+[node name="ColorRect" type="ColorRect" parent="NoteStart" unique_id=1232591431]
+anchors_preset = 8
+anchor_left = 0.5
+anchor_top = 0.5
+anchor_right = 0.5
+anchor_bottom = 0.5
+offset_left = -29.0
+offset_top = -6.0
+offset_right = 29.0
+offset_bottom = 6.0
+grow_horizontal = 2
+grow_vertical = 2
+color = Color(0.93, 0, 0, 1)
+
+[node name="NoteEnd" type="Node2D" parent="." unique_id=2007025807]
+
+[node name="ColorRect" type="ColorRect" parent="NoteEnd" unique_id=1179831333]
+anchors_preset = 8
+anchor_left = 0.5
+anchor_top = 0.5
+anchor_right = 0.5
+anchor_bottom = 0.5
+offset_left = -29.0
+offset_top = -6.0
+offset_right = 29.0
+offset_bottom = 6.0
+grow_horizontal = 2
+grow_vertical = 2
+color = Color(0.93, 0, 0, 1)

rhythm_game/note/visual/note_visual.gd

@@ -8,3 +8,15 @@ enum TYPE {
 @abstract func reset() -> void
 
 @abstract func in_use() -> bool
+
+@abstract func update(beat: float) -> void
+
+# ======= IMPLEMENTATION ======= #
+var _lane: Lane = null
+
+func _notification(what: int) -> void:
+	match what:
+		NOTIFICATION_PARENTED:
+			_lane = get_parent() as Lane
+		NOTIFICATION_UNPARENTED:
+			_lane = null

rhythm_game/note/visual/tap/tap_note.gd

@@ -2,8 +2,13 @@ class_name TapNote extends NoteVisual
 
 var id: int = -1
 
+#TODO: Add all the members needed so a note can be updated.
+
 func reset() -> void:
 	id = -1
 
 func in_use() -> bool:
 	return id >= 0
+
+func update(beat: float) -> void:
+	pass