Add request scene

Levels/level_01/Level_01.tscn

@@ -6,10 +6,10 @@
 [ext_resource type="PackedScene" uid="uid://csbw7e8w63gif" path="res://Characters/hero.tscn" id="6_1veeq"]
 [ext_resource type="PackedScene" uid="uid://b1p77kho11wc" path="res://Objects/Props/Barrels/Obj_Barrel_01.tscn" id="9_f7gfs"]
 [ext_resource type="PackedScene" uid="uid://d2glbpj75vbl8" path="res://Characters/EnemyGreenOoze.tscn" id="11_opamk"]
-[ext_resource type="PackedScene" path="res://UI/UI.tscn" id="12_gvknc"]
+[ext_resource type="PackedScene" uid="uid://c4f4xoibdq0s3" path="res://UI/UI.tscn" id="12_gvknc"]
 [ext_resource type="AudioStream" uid="uid://htkcydmx1tfa" path="res://Audio/soundtrack/Burn The World Waltz .mp3" id="13_kw5mq"]
 [ext_resource type="PackedScene" uid="uid://c4bb5dcwvv8so" path="res://Objects/Props/Book/Obj_Book_01.tscn" id="17_68np3"]
-[ext_resource type="PackedScene" path="res://Characters/Rat/EnemyRat.tscn" id="17_lavig"]
+[ext_resource type="PackedScene" uid="uid://bgogck1k1rl0i" path="res://Characters/Rat/EnemyRat.tscn" id="17_lavig"]
 [ext_resource type="PackedScene" uid="uid://d286oxenjlily" path="res://Objects/Props/Pencil/Obj_Pencil_01.tscn" id="18_tdhot"]
 
 [sub_resource type="AudioStreamPlaylist" id="AudioStreamPlaylist_4xpmh"]
@@ -20,7 +20,7 @@ stream_0 = ExtResource("13_kw5mq")
 y_sort_enabled = true
 script = ExtResource("1_6x71g")
 size_target = 800
-level_complete = "res://Menus/Level_Transistion_Scene.tscn"
+level_complete = "res://Menus/Level_Transition_Scene.tscn"
 
 [node name="Walls and Ground" type="TileMapLayer" parent="."]
 use_parent_material = true

Levels/level_01/level_01.gd

@@ -11,9 +11,8 @@ func _ready() -> void:
 func check_level_finished(hero_size: int):
 	if hero_size >= size_target:
 		print("YOU'RE WINNER")
-		# TODO: preload scenes
-		GlobalSignals.request_scene.emit(level_complete)
-		get_tree().create_timer(1).timeout.connect(func (): get_tree().change_scene_to_file("res://Menus/Level_Transition_Scene.tscn"))
+		get_tree().create_timer(1).timeout.connect(func(): GlobalSignals.request_scene.emit(level_complete))
+
 
 # Called every frame. 'delta' is the elapsed time since the previous frame.
 func _process(delta: float) -> void:

Menus/Level_Transition_Scene.tscn

@@ -1,4 +1,4 @@
-[gd_scene load_steps=9 format=3 uid="uid://dsjdtyli4m3o8"]
+[gd_scene load_steps=9 format=3 uid="uid://c1ruh03xank16"]
 
 [ext_resource type="Theme" uid="uid://bewgrgj1ylev2" path="res://Menus/MenuTheme.tres" id="1_s701w"]
 [ext_resource type="Script" path="res://Menus/level_transition_scene.gd" id="2_hq2x5"]

Scripts/GameManager.gd

@@ -5,9 +5,14 @@ const pause_menu := "res://Menus/PauseMenu.tscn"
 var pause := preload(pause_menu).instantiate()
 
 signal in_menu(value : bool)
-
 var is_menu := true
 
+var scene_path : String
+
+# ---
+# Pause Menu
+# ---
+
 func hide_menu():
 	if pause.is_inside_tree():
 		get_tree().root.remove_child(pause)
@@ -22,16 +27,86 @@ func toggle_menu():
 		get_tree().root.add_child(pause)
 		get_tree().paused = true
 
+# ---
+# Scene Change
+# ---
+
+func check_scene_path() -> String:
+	if scene_path == null or scene_path.is_empty():
+		return "scene path is empty"
+	if not scene_path.ends_with(".tscn") or not scene_path.begins_with("res://"):
+		return "scene path incomplete"
+	if not ResourceLoader.exists(scene_path):
+		return "scene path does not exsist"
+
+	return ""
+
+func valid_scene_path() -> bool:
+	var scene_status = check_scene_path()
+	if scene_status:
+		push_warning(scene_status, ": ", scene_path)
+		print_rich("[color=yellow]%s: [b]'%s'[/b][/color]" % [scene_status, scene_path])
+		return false
+
+	return true
+
+func do_scene_change():
+	var resource = ResourceLoader.load_threaded_get(scene_path)
+	var err = get_tree().change_scene_to_packed(resource)
+	if err:
+		push_error("failed to change scenes: %d" % err)
+		get_tree().quit(1)
+	scene_path = ""
+	GlobalSignals.change_scene.emit()
+
+func load_scene() -> void:
+	if ResourceLoader.has_cached(scene_path):
+		do_scene_change()
+		return
+	ResourceLoader.load_threaded_request(scene_path)
+	set_process(true)
+
+func change_scene(scene: String):
+	scene_path = scene
+	prints("Changing scene to", scene_path)
+	if not valid_scene_path():
+		return
+	load_scene()
+
+func get_scene_status() -> ResourceLoader.ThreadLoadStatus:
+	if not valid_scene_path():
+		return ResourceLoader.THREAD_LOAD_INVALID_RESOURCE
+	return ResourceLoader.load_threaded_get_status(scene_path)
+
+func check_scene_status():
+	var resource_status = get_scene_status()
+	match(resource_status):
+		ResourceLoader.THREAD_LOAD_INVALID_RESOURCE, ResourceLoader.THREAD_LOAD_FAILED:
+			push_error("failed to change scenes")
+			set_process(false)
+		ResourceLoader.THREAD_LOAD_LOADED:
+			do_scene_change()
+			set_process(false)
+
+# ---
+# Setup
+# ---
+
 func _ready():
 	process_mode = Node.PROCESS_MODE_ALWAYS
 	GlobalSignals.change_scene.connect(hide_menu)
+	GlobalSignals.request_scene.connect(change_scene)
 	in_menu.connect(func(value): is_menu = value)
+	set_process(false)
 
 func _input(event: InputEvent):
 	if(event.is_action_pressed("escape")):
-		print(get_tree().root.get_child(0))
-		#get_tree().root.get_node()
+		# TODO: check if menu using root
+		#print(get_tree().root.get_child(0))
 		if is_menu:
 			get_tree().change_scene_to_file(main_menu)
 		else:
 			toggle_menu()
+
+func _process(_delta):
+	check_scene_status()

Scripts/Nodes/SceneButton.gd

@@ -8,7 +8,8 @@ extends Button
 
 func set_scene(value : String) -> void:
 	scene_path = value
-	disabled = not valid_scene_path()
+	var scene_status = check_scene_path()
+	disabled = not scene_status.is_empty()
 	update_configuration_warnings()
 
 func check_scene_path() -> String:
@@ -27,52 +28,14 @@ func _get_configuration_warnings() -> PackedStringArray:
 		return [scene_status]
 	return []
 
-func valid_scene_path() -> bool:
-	var scene_status = check_scene_path()
-	if scene_status:
-		push_warning(self, " ", scene_status)
-		print_rich("[color=yellow]%s [b]'%s'[/b][/color]" % [text, scene_path])
-
-	return scene_status.is_empty()
-
-func change_scene() -> void:
-	var resource = ResourceLoader.load_threaded_get(scene_path)
-	var err = get_tree().change_scene_to_packed(resource)
-	if err:
-		push_error("failed to change scenes: %d" % err)
-		get_tree().quit(1)
-	GameManager.in_menu.emit(to_menu)
-	GlobalSignals.change_scene.emit()
-
 func load_scene() -> void:
 	prints("Changing scene to", scene_path)
-	if not valid_scene_path():
-		push_error("\"%s\" failed to change scenes: %s" % [text, scene_path])
-		return
-	if ResourceLoader.has_cached(scene_path):
-		change_scene()
-		return
-	ResourceLoader.load_threaded_request(scene_path)
-	set_process(true)
+	GlobalSignals.request_scene.emit(scene_path)
 
 func _ready():
 	update_configuration_warnings()
-	disabled = not valid_scene_path()
+	var scene_status = check_scene_path()
+	disabled = not scene_status.is_empty()
 	if not disabled:
 		pressed.connect(load_scene)
 	set_process(false)
-
-func get_status() -> ResourceLoader.ThreadLoadStatus:
-	if not valid_scene_path():
-		return ResourceLoader.THREAD_LOAD_INVALID_RESOURCE
-	return ResourceLoader.load_threaded_get_status(scene_path)
-
-func _process(_delta):
-	var resource_status = get_status()
-	match(resource_status):
-		ResourceLoader.THREAD_LOAD_INVALID_RESOURCE, ResourceLoader.THREAD_LOAD_FAILED:
-			push_error("failed to change scenes")
-			set_process(false)
-		ResourceLoader.THREAD_LOAD_LOADED:
-			change_scene()
-			set_process(false)