init

.editorconfig

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+root = true
+
+[*]
+charset = utf-8

.gitattributes

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+# Normalize EOL for all files that Git considers text files.
+* text=auto eol=lf

.gitignore

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+# Godot 4+ specific ignores
+.godot/
+/android/

entities/RoadPath.tscn

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+[gd_scene load_steps=3 format=3 uid="uid://cjk3phtyyiyty"]
+
+[ext_resource type="Script" uid="uid://bdw7xdf1lc3ud" path="res://entities/do_spline.gd" id="1_c4y0q"]
+
+[sub_resource type="Curve3D" id="Curve3D_p7e7j"]
+_data = {
+"points": PackedVector3Array(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6.24595, 0, 10),
+"tilts": PackedFloat32Array(0, 0)
+}
+point_count = 2
+
+[node name="Track" type="Path3D"]
+curve = SubResource("Curve3D_p7e7j")
+script = ExtResource("1_c4y0q")

entities/do_spline.gd

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+@tool
+extends Path3D
+class_name RoadPath
+@export_tool_button("update_control_points") var action = update_control_points
+
+func update_control_points():
+	if curve.point_count < 2:
+		return
+	
+	
+	# Start point: out control based on next point
+	var dir = (curve.get_point_position(1) - curve.get_point_position(0)).normalized()
+	var tangent_length = dir.length() / 3 
+	
+	curve.set_point_out(0, dir * tangent_length)
+	
+	# Intermediate points: in and out controls based on adjacent points
+	for i in range(1, curve.point_count - 1):
+		var prev_dir = (curve.get_point_position(i) - curve.get_point_position(i - 1)).normalized()
+		var next_dir = (curve.get_point_position(i + 1) - curve.get_point_position(i)).normalized()
+		tangent_length = next_dir.length() / 3 
+		var tangent = (prev_dir + next_dir)
+		tangent.y = 0
+		tangent = tangent.normalized()
+		curve.set_point_in(i, -tangent * tangent_length)
+		curve.set_point_out(i, tangent * tangent_length)

entities/do_spline.gd.uid

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+uid://bdw7xdf1lc3ud

icon.svg

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+<svg xmlns="http://www.w3.org/2000/svg" width="128" height="128"><rect width="124" height="124" x="2" y="2" fill="#363d52" stroke="#212532" stroke-width="4" rx="14"/><g fill="#fff" transform="translate(12.322 12.322)scale(.101)"><path d="M105 673v33q407 354 814 0v-33z"/><path fill="#478cbf" d="m105 673 152 14q12 1 15 14l4 67 132 10 8-61q2-11 15-15h162q13 4 15 15l8 61 132-10 4-67q3-13 15-14l152-14V427q30-39 56-81-35-59-83-108-43 20-82 47-40-37-88-64 7-51 8-102-59-28-123-42-26 43-46 89-49-7-98 0-20-46-46-89-64 14-123 42 1 51 8 102-48 27-88 64-39-27-82-47-48 49-83 108 26 42 56 81zm0 33v39c0 276 813 276 814 0v-39l-134 12-5 69q-2 10-14 13l-162 11q-12 0-16-11l-10-65H446l-10 65q-4 11-16 11l-162-11q-12-3-14-13l-5-69z"/><path d="M483 600c0 34 58 34 58 0v-86c0-34-58-34-58 0z"/><circle cx="725" cy="526" r="90"/><circle cx="299" cy="526" r="90"/></g><g fill="#414042" transform="translate(12.322 12.322)scale(.101)"><circle cx="307" cy="532" r="60"/><circle cx="717" cy="532" r="60"/></g></svg>

icon.svg.import

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+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://c32mxwui4br07"
+path="res://.godot/imported/icon.svg-218a8f2b3041327d8a5756f3a245f83b.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://icon.svg"
+dest_files=["res://.godot/imported/icon.svg-218a8f2b3041327d8a5756f3a245f83b.ctex"]
+
+[params]
+
+compress/mode=0
+compress/high_quality=false
+compress/lossy_quality=0.7
+compress/hdr_compression=1
+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1
+svg/scale=1.0
+editor/scale_with_editor_scale=false
+editor/convert_colors_with_editor_theme=false

project.godot

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+; Engine configuration file.
+; It's best edited using the editor UI and not directly,
+; since the parameters that go here are not all obvious.
+;
+; Format:
+;   [section] ; section goes between []
+;   param=value ; assign values to parameters
+
+config_version=5
+
+[application]
+
+config/name="Looping"
+config/features=PackedStringArray("4.4", "GL Compatibility")
+config/icon="res://icon.svg"
+
+[rendering]
+
+renderer/rendering_method="gl_compatibility"
+renderer/rendering_method.mobile="gl_compatibility"

scenes/main.tscn

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+[gd_scene format=3 uid="uid://bd8skoxlvujam"]
+
+[node name="Main" type="Node3D"]