show level name, best time, and thumbnail (#3)

now thumbnails need to be made

levels/forest/level.tscn

@@ -10,8 +10,18 @@
 [sub_resource type="GDScript" id="GDScript_mqwxc"]
 script/source = "extends Level
 
+var cycle := 0
+
 func _init() -> void:
 	self.id = \"forest\"
+	self.thumbnail = load(\"res://levels/forest/thumbnail.png\")
+
+func _process(_delta: float) -> void:
+	var moving_ring: Ring = $Rings/Ring18
+	if !moving_ring.collected:
+		if moving_ring.position.y < 55 or moving_ring.position.y > 65:
+			cycle += 1
+		moving_ring.position.y += 0.5 if cycle % 2 else -0.5
 
 func _on_player_velocity_change(new_velocity: float) -> void:
 	self.velocity = new_velocity

levels/forest/thumbnail.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://dhyxogc13hnbe"
+path="res://.godot/imported/thumbnail.png-6909560b6205778a3cb325a584af7ca5.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://levels/forest/thumbnail.png"
+dest_files=["res://.godot/imported/thumbnail.png-6909560b6205778a3cb325a584af7ca5.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

levels/level.gd

@@ -6,13 +6,16 @@ signal completed
 
 ## Lowercase, spaceless name of the level
 var id: String
+var thumbnail: CompressedTexture2D
 var music: Music
-var velocity: float = 0.0
 var rings: Array[Ring] = []
 var finished_rings_count: int = 0
+var velocity: float = 0.0
+
+func _init() -> void:
+	assert(len(id) > 0, self.name + " has no id!")
 
 func _ready() -> void:
-	assert(len(id) > 0, self.name + " has no id!")
 	var children = get_children()
 	for child in children:
 		if is_instance_of(child, Music):