Update loading demos for 4.0 (#776)

loading/autoload/README.md

@@ -4,7 +4,7 @@ This demo shows how to use autoloads to change between scenes.
 
 Language: GDScript
 
-Renderer: Vulkan Mobile
+Renderer: Mobile
 
 Check out this demo on the asset library: https://godotengine.org/asset-library/asset/529
 

loading/autoload/global.gd

@@ -1,10 +1,10 @@
 extends Node
-
-# Changing scenes is most easily done using the functions `change_scene`
-# and `change_scene_to` of the SceneTree. This script demonstrates how to
+# Changing scenes is most easily done using the functions change_scene_to_file
+# and change_scene_to_packed of the SceneTree. This script demonstrates how to
 # change scenes without those helpers.
 
-func goto_scene(path):
+
+func goto_scene(path: String):
 	# This function will usually be called from a signal callback,
 	# or some other function from the running scene.
 	# Deleting the current scene at this point might be
@@ -13,21 +13,20 @@ func goto_scene(path):
 
 	# The way around this is deferring the load to a later time, when
 	# it is ensured that no code from the current scene is running:
-	call_deferred("_deferred_goto_scene", path)
+	_deferred_goto_scene.call_deferred(path)
 
 
-func _deferred_goto_scene(path):
-	# Immediately free the current scene, there is no risk here.
-	get_tree().get_current_scene().free()
+func _deferred_goto_scene(path: String):
+	# Immediately free the current scene. There is no risk here because the
+	# call to this method is already deferred.
+	get_tree().current_scene.free()
 
-	# Load new scene
-	var packed_scene = ResourceLoader.load(path)
+	var packed_scene := ResourceLoader.load(path) as PackedScene
 
-	# Instance the new scene
-	var instanced_scene = packed_scene.instantiate()
+	var instanced_scene := packed_scene.instantiate()
 
 	# Add it to the scene tree, as direct child of root
-	get_tree().get_root().add_child(instanced_scene)
+	get_tree().root.add_child(instanced_scene)
 
 	# Set it as the current scene, only after it has been added to the tree
-	get_tree().set_current_scene(instanced_scene)
+	get_tree().current_scene = instanced_scene

loading/autoload/project.godot

@@ -14,20 +14,16 @@ config/name="Autoload (Singletons)"
 config/description="This demo shows how to use autoloads to change between scenes."
 run/main_scene="res://scene_a.tscn"
 config/features=PackedStringArray("4.0")
+run/low_processor_mode=true
 
 [autoload]
 
-global="res://global.gd"
+global="*res://global.gd"
 
 [display]
 
-window/stretch/mode="canvas_items"
-window/stretch/aspect="expand"
-
-[gdnative]
-
-singletons=[]
+window/vsync/vsync_mode=0
 
 [rendering]
 
-vulkan/rendering/back_end=1
+renderer/rendering_method="mobile"

loading/autoload/scene_a.gd

@@ -1,4 +1,5 @@
 extends Panel
 
+
 func _on_goto_scene_pressed():
-	get_node(^"/root/global").goto_scene("res://scene_b.tscn")
+	global.goto_scene("res://scene_b.tscn")

loading/autoload/scene_a.tscn

@@ -1,15 +1,19 @@
-[gd_scene load_steps=2 format=3 uid="uid://bh2ylkcsgejgy"]
+[gd_scene load_steps=2 format=3 uid="uid://6xgdg1bmya7c"]
 
 [ext_resource type="Script" path="res://scene_a.gd" id="1"]
 
 [node name="SceneA" type="Panel"]
+anchors_preset = 15
 anchor_right = 1.0
 anchor_bottom = 1.0
+grow_horizontal = 2
+grow_vertical = 2
 size_flags_horizontal = 2
 size_flags_vertical = 2
-script = ExtResource( "1" )
+script = ExtResource("1")
 
 [node name="Label" type="Label" parent="."]
+layout_mode = 0
 offset_left = 64.0
 offset_top = 48.0
 offset_right = 104.0
@@ -18,6 +22,7 @@ size_flags_vertical = 0
 text = "This is scene A."
 
 [node name="GoToSceneB" type="Button" parent="."]
+layout_mode = 0
 offset_left = 64.0
 offset_top = 128.0
 offset_right = 192.0

loading/autoload/scene_b.gd

@@ -1,4 +1,5 @@
 extends Panel
 
+
 func _on_goto_scene_pressed():
-	get_node(^"/root/global").goto_scene("res://scene_a.tscn")
+	global.goto_scene("res://scene_a.tscn")

loading/autoload/scene_b.tscn

@@ -1,18 +1,19 @@
-[gd_scene load_steps=2 format=3 uid="uid://pt77vxjf3uwe"]
+[gd_scene load_steps=2 format=3 uid="uid://cmu1caqo7k7wy"]
 
 [ext_resource type="Script" path="res://scene_b.gd" id="1"]
 
 [node name="SceneB" type="Panel"]
+anchors_preset = 15
 anchor_right = 1.0
 anchor_bottom = 1.0
+grow_horizontal = 2
+grow_vertical = 2
 size_flags_horizontal = 2
 size_flags_vertical = 2
-script = ExtResource( "1" )
-__meta__ = {
-"_edit_use_anchors_": false
-}
+script = ExtResource("1")
 
 [node name="Label" type="Label" parent="."]
+layout_mode = 0
 offset_left = 64.0
 offset_top = 48.0
 offset_right = 164.0
@@ -21,6 +22,7 @@ size_flags_vertical = 0
 text = "This is scene B."
 
 [node name="GoToSceneA" type="Button" parent="."]
+layout_mode = 0
 offset_left = 64.0
 offset_top = 128.0
 offset_right = 192.0