draft

.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/

game.tscn

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+[gd_scene load_steps=3 format=3 uid="uid://ew5kw35yq5og"]
+
+[ext_resource type="Script" path="res://game_logic.gd" id="1_08qwr"]
+[ext_resource type="PackedScene" uid="uid://c3q3kuwyx3wju" path="res://player/player.tscn" id="1_16bpk"]
+
+[node name="game" type="Node"]
+
+[node name="game_logic" type="Node" parent="."]
+script = ExtResource("1_08qwr")
+
+[node name="canvas" type="Node2D" parent="."]
+
+[node name="player" parent="canvas" instance=ExtResource("1_16bpk")]
+position = Vector2(187, 188)
+rotation = 1.5708
+
+[node name="trails" type="Node2D" parent="canvas"]
+
+[node name="player_trail" type="Node2D" parent="canvas/trails" groups=["player_trail"]]
+
+[node name="trail_line" type="Line2D" parent="canvas/trails/player_trail" groups=["trail_line"]]
+width = 5.0
+default_color = Color(0, 0.360784, 1, 1)
+joint_mode = 2

game_logic.gd

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+extends Node
+
+
+# Called when the node enters the scene tree for the first time.
+func _ready():
+	pass # Replace with function body.
+
+func _input(event):
+	if event.is_action_pressed(&"ui_cancel"):
+		get_tree().quit()

icon.svg

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+<svg height="128" width="128" xmlns="http://www.w3.org/2000/svg"><rect x="2" y="2" width="124" height="124" rx="14" fill="#363d52" stroke="#212532" stroke-width="4"/><g transform="scale(.101) translate(122 122)"><g fill="#fff"><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 276 813 276 813 0v-39l-134 12-5 69q-2 10-14 13l-162 11q-12 0-16-11l-10-65H447l-10 65q-4 11-16 11l-162-11q-12-3-14-13l-5-69z"/><path d="M483 600c3 34 55 34 58 0v-86c-3-34-55-34-58 0z"/><circle cx="725" cy="526" r="90"/><circle cx="299" cy="526" r="90"/></g><g fill="#414042"><circle cx="307" cy="532" r="60"/><circle cx="717" cy="532" r="60"/></g></g></svg>

icon.svg.import

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+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://bpkj0f25cae3w"
+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

player/player.gd

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+extends CharacterBody2D
+
+var rotation_speed = 0.1
+var movement_speed = 2
+var direction
+var player_trail
+var trail_line
+var previous_position
+
+var left
+var right
+
+func _ready():
+	player_trail = get_tree().get_first_node_in_group(&"player_trail")
+	trail_line = get_tree().get_first_node_in_group(&"trail_line")
+	previous_position = $trail_spawner.global_position
+
+func _physics_process(delta):
+	left = Input.is_action_pressed(&"ui_left")
+	right = Input.is_action_pressed(&"ui_right")
+	# holding down both buttons should do nothing
+	if left or right:
+		if left:
+			rotate(-rotation_speed)
+		if right:
+			rotate(rotation_speed)
+	
+	direction = Vector2(0, -movement_speed).rotated(rotation)
+	var collision = move_and_collide(direction)
+	if collision:
+		player_trail.queue_free()
+		queue_free()
+	trail_line.add_point($trail_spawner.global_position)
+	var new_collision_segment = StaticBody2D.new()
+	var new_collision_shape = CollisionShape2D.new()
+	var new_segment = SegmentShape2D.new()
+	new_segment.a = previous_position
+	new_segment.b = $trail_spawner.global_position
+	new_collision_shape.shape = new_segment
+	new_collision_segment.add_child(new_collision_shape)
+	player_trail.add_child(new_collision_segment)
+	previous_position = $trail_spawner.global_position
+	

player/player.tscn

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+[gd_scene load_steps=3 format=3 uid="uid://c3q3kuwyx3wju"]
+
+[ext_resource type="Script" path="res://player/player.gd" id="1_rgaqq"]
+
+[sub_resource type="RectangleShape2D" id="RectangleShape2D_gaw8f"]
+size = Vector2(6, 20)
+
+[node name="player" type="CharacterBody2D"]
+script = ExtResource("1_rgaqq")
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="."]
+shape = SubResource("RectangleShape2D_gaw8f")
+
+[node name="Polygon2D" type="Polygon2D" parent="."]
+color = Color(0.0019802, 0.232666, 0.857673, 1)
+polygon = PackedVector2Array(-3, -10, -6, 10, 6, 10, 3, -10)
+
+[node name="trail_spawner" type="Marker2D" parent="."]
+position = Vector2(0, 10)

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="curve prototype"
+run/main_scene="res://game.tscn"
+config/features=PackedStringArray("4.3")
+config/icon="res://icon.svg"
+
+[global_group]
+
+trail_line=""
+player_trail=""