Added a scene for a level, with a track that shrinks (at least visually)

src/game/level.gd

@@ -0,0 +1,35 @@
+extends Node2D
+#constants
+## initial width of the drawn track
+@export var starting_width := 50.0
+## amount of pixels that the width decreases every second
+@export var shrink_factor := .1
+## the diefference between the track's width and the maximum distance of the car from the center of the track. Should be about half the width of the car
+@export var max_distance_offset := .5
+
+#references
+## reference to the path describing the track
+@export var path: Path2D
+## reference to the line that draws the visual track
+@export var line: Line2D
+
+#variables
+var width
+var running = true
+
+# Called when the node enters the scene tree for the first time.
+func _ready():
+	width = starting_width
+	line.set_width(width)
+	line.set_points(path.curve.get_baked_points())
+
+
+# Called every frame. 'delta' is the elapsed time since the previous frame.
+func _process(delta):
+	if (running):
+		width -= shrink_factor * delta
+		update_line()
+
+
+func update_line():
+	line.set_width(width)

src/game/level1.tscn

@@ -0,0 +1,20 @@
+[gd_scene load_steps=3 format=3 uid="uid://b4dnui6vvlta7"]
+
+[ext_resource type="Script" path="res://src/game/level.gd" id="1_hv75i"]
+
+[sub_resource type="Curve2D" id="Curve2D_ll8bj"]
+_data = {
+"points": PackedVector2Array(-33.6888, -46.2486, 33.6888, 46.2486, 325, 200, -79.196, 14.1421, 79.196, -14.1421, 543, 271, -62.2254, 38.1838, 62.2254, -38.1838, 714, 113, -35.3553, -48.0833, 35.3553, 48.0833, 961, 148, 62.2254, -69.2965, -62.2254, 69.2965, 978, 429, 59.397, -33.9411, -59.397, 33.9411, 739, 445, 77.7818, -1.41421, -77.7818, 1.41421, 596, 562, 62.2254, 25.4558, -62.2254, -25.4558, 316, 518, 42.4264, 69.2965, -42.4264, -69.2965, 119, 387, -1.41421, 50.9117, 1.41421, -50.9117, 72, 187, -33.9411, 22.6274, 33.9411, -22.6274, 137, 52, -38.1838, -12.7279, 38.1838, 12.7279, 241, 47, -25.4558, -49.4975, 25.4558, 49.4975, 299, 154, -15.3576, -23.2238, 15.3576, 23.2238, 325, 200)
+}
+point_count = 14
+
+[node name="level1" type="Node2D" node_paths=PackedStringArray("path", "line")]
+script = ExtResource("1_hv75i")
+shrink_factor = 0.5
+path = NodePath("TrackPath")
+line = NodePath("TrackLine")
+
+[node name="TrackPath" type="Path2D" parent="."]
+curve = SubResource("Curve2D_ll8bj")
+
+[node name="TrackLine" type="Line2D" parent="."]