Add scrolling background to game

game/game.tscn

@@ -1,8 +1,9 @@
-[gd_scene load_steps=10 format=3 uid="uid://d2had6j0ul7hn"]
+[gd_scene load_steps=11 format=3 uid="uid://d2had6j0ul7hn"]
 
 [ext_resource type="Texture2D" uid="uid://b5plspvrerf8c" path="res://assets/background/rocks_2.png" id="1_kihwf"]
 [ext_resource type="Script" path="res://game/game.gd" id="1_mh8bq"]
 [ext_resource type="PackedScene" uid="uid://dnu582ov5o310" path="res://plane/plane.tscn" id="2_xl0om"]
+[ext_resource type="PackedScene" uid="uid://tlvvmodg5soo" path="res://scrolling_background/scrolling_background.tscn" id="3_h3bfe"]
 [ext_resource type="PackedScene" uid="uid://bed61tdnf2vq7" path="res://pipes/pipes.tscn" id="3_njdgd"]
 [ext_resource type="PackedScene" uid="uid://bjx4v08mh6uhy" path="res://game_over/game_over.tscn" id="5_pro41"]
 [ext_resource type="PackedScene" uid="uid://dpkbp3vf7sy4b" path="res://hud/hud.tscn" id="6_8typh"]
@@ -16,7 +17,10 @@ size = Vector2(499, 20)
 script = ExtResource("1_mh8bq")
 pipes_scene = ExtResource("3_njdgd")
 
+[node name="ScrollingBackground" parent="." instance=ExtResource("3_h3bfe")]
+
 [node name="Sprite2D" type="Sprite2D" parent="."]
+visible = false
 position = Vector2(249, 367)
 texture = ExtResource("1_kihwf")
 

scrolling_background/scrolling_background.gd

@@ -0,0 +1,16 @@
+extends ParallaxBackground
+
+const SPEED: float = 120.0
+
+# Called when the node enters the scene tree for the first time.
+func _ready():
+	GameManager.on_game_over.connect(on_game_over)
+
+
+# Called every frame. 'delta' is the elapsed time since the previous frame.
+func _process(delta):
+	scroll_offset.x += SPEED * delta * -1
+
+
+func on_game_over() -> void:
+	set_process(false)

scrolling_background/scrolling_background.tscn

@@ -0,0 +1,26 @@
+[gd_scene load_steps=7 format=3 uid="uid://tlvvmodg5soo"]
+
+[ext_resource type="Script" path="res://scrolling_background/scrolling_background.gd" id="1_2tit7"]
+[ext_resource type="PackedScene" uid="uid://lyxdlorebi57" path="res://scrolling_background/scrolling_layer.tscn" id="2_xr7tv"]
+[ext_resource type="Texture2D" uid="uid://catcpw8b2gbou" path="res://assets/background/sky.png" id="3_s8hsv"]
+[ext_resource type="Texture2D" uid="uid://beyem76sprrai" path="res://assets/background/clouds_2.png" id="4_ebcr1"]
+[ext_resource type="Texture2D" uid="uid://clhm76pnyn0ja" path="res://assets/background/rocks_1.png" id="5_cgbuy"]
+[ext_resource type="Texture2D" uid="uid://b5plspvrerf8c" path="res://assets/background/rocks_2.png" id="6_4ivtk"]
+
+[node name="ScrollingBackground" type="ParallaxBackground"]
+script = ExtResource("1_2tit7")
+
+[node name="ScrollingLayer" parent="." instance=ExtResource("2_xr7tv")]
+texture = ExtResource("3_s8hsv")
+
+[node name="ScrollingLayer2" parent="." instance=ExtResource("2_xr7tv")]
+texture = ExtResource("4_ebcr1")
+scroll_scale = 0.2
+
+[node name="ScrollingLayer3" parent="." instance=ExtResource("2_xr7tv")]
+texture = ExtResource("5_cgbuy")
+scroll_scale = 0.5
+
+[node name="ScrollingLayer4" parent="." instance=ExtResource("2_xr7tv")]
+texture = ExtResource("6_4ivtk")
+scroll_scale = 0.7

scrolling_background/scrolling_layer.gd

@@ -0,0 +1,18 @@
+extends ParallaxLayer
+
+@export var texture: Texture
+@export var scroll_scale: float = 0.0
+@export var texture_x: float = 1920.0
+@export var texture_y: float = 1080.0
+
+@onready var sprite_2d = $Sprite2D
+
+
+func _ready():
+	motion_scale.x = scroll_scale
+
+	var scale_factor = get_viewport_rect().size.y / texture_y
+	sprite_2d.texture = texture
+	sprite_2d.scale = Vector2(scale_factor, scale_factor)
+
+	motion_mirroring.x = texture_x * scale_factor

scrolling_background/scrolling_layer.tscn

@@ -0,0 +1,9 @@
+[gd_scene load_steps=2 format=3 uid="uid://lyxdlorebi57"]
+
+[ext_resource type="Script" path="res://scrolling_background/scrolling_layer.gd" id="1_palkg"]
+
+[node name="ScrollingLayer" type="ParallaxLayer"]
+script = ExtResource("1_palkg")
+
+[node name="Sprite2D" type="Sprite2D" parent="."]
+centered = false