Update getting started 2D to 4.3

getting_started/first_2d_game/03.coding_the_player.rst

@@ -74,7 +74,7 @@ a good time to find the size of the game window:
 .. tabs::
  .. code-tab:: gdscript GDScript
 
-    func _ready():
+    func _ready() -> void:
         screen_size = get_viewport_rect().size
 
  .. code-tab:: csharp
@@ -140,7 +140,7 @@ which returns ``true`` if it's pressed or ``false`` if it isn't.
 .. tabs::
  .. code-tab:: gdscript GDScript
 
-    func _process(delta):
+    func _process(delta: float) -> void:
         var velocity = Vector2.ZERO # The player's movement vector.
         if Input.is_action_pressed("move_right"):
             velocity.x += 1
@@ -399,7 +399,7 @@ Next, add this code to the function:
 .. tabs::
  .. code-tab:: gdscript GDScript
 
-    func _on_body_entered(body):
+    func _on_body_entered(body: Node2D) -> void:
         hide() # Player disappears after being hit.
         hit.emit()
         # Must be deferred as we can't change physics properties on a physics callback.

getting_started/first_2d_game/04.creating_the_enemy.rst

@@ -84,7 +84,7 @@ and randomly choose one of the three animation types:
 .. tabs::
  .. code-tab:: gdscript GDScript
 
-    func _ready():
+    func _ready() -> void:
         var mob_types = $AnimatedSprite2D.sprite_frames.get_animation_names()
         $AnimatedSprite2D.play(mob_types[randi() % mob_types.size()])
 
@@ -112,7 +112,7 @@ to the ``Mob`` and add this code:
 .. tabs::
  .. code-tab:: gdscript GDScript
 
-    func _on_visible_on_screen_notifier_2d_screen_exited():
+    func _on_visible_on_screen_notifier_2d_screen_exited() -> void:
         queue_free()
 
  .. code-tab:: csharp

getting_started/first_2d_game/05.the_main_game_scene.rst

@@ -124,11 +124,11 @@ everything up for a new game:
 .. tabs::
  .. code-tab:: gdscript GDScript
 
-    func game_over():
+    func game_over() -> void:
         $ScoreTimer.stop()
         $MobTimer.stop()
 
-    func new_game():
+    func new_game() -> void:
         score = 0
         $Player.start($StartPosition.position)
         $StartTimer.start()
@@ -159,10 +159,10 @@ the other two timers. ``ScoreTimer`` will increment the score by 1.
 .. tabs::
  .. code-tab:: gdscript GDScript
 
-    func _on_score_timer_timeout():
+    func _on_score_timer_timeout() -> void:
         score += 1
 
-    func _on_start_timer_timeout():
+    func _on_start_timer_timeout() -> void:
         $MobTimer.start()
         $ScoreTimer.start()
 
@@ -194,7 +194,7 @@ Note that a new instance must be added to the scene using ``add_child()``.
 .. tabs::
  .. code-tab:: gdscript GDScript
 
-    func _on_mob_timer_timeout():
+    func _on_mob_timer_timeout() -> void:
         # Create a new instance of the Mob scene.
         var mob = mob_scene.instantiate()
 
@@ -269,7 +269,7 @@ call to ``_ready()``:
 .. tabs::
  .. code-tab:: gdscript GDScript
 
-    func _ready():
+    func _ready() -> void:
         new_game()
 
  .. code-tab:: csharp

getting_started/first_2d_game/06.heads_up_display.rst

@@ -111,7 +111,7 @@ such as "Get Ready", so we add the following code
 .. tabs::
  .. code-tab:: gdscript GDScript
 
-    func show_message(text):
+    func show_message(text) -> void:
         $Message.text = text
         $Message.show()
         $MessageTimer.start()
@@ -132,7 +132,7 @@ We also need to process what happens when the player loses. The code below will
 .. tabs::
  .. code-tab:: gdscript GDScript
 
-    func show_game_over():
+    func show_game_over() -> void:
         show_message("Game Over")
         # Wait until the MessageTimer has counted down.
         await $MessageTimer.timeout
@@ -174,7 +174,7 @@ Add the code below to ``HUD`` to update the score
 .. tabs::
  .. code-tab:: gdscript GDScript
 
-    func update_score(score):
+    func update_score(score) -> void:
         $ScoreLabel.text = str(score)
 
  .. code-tab:: csharp
@@ -190,11 +190,11 @@ signal of ``MessageTimer`` to the ``HUD`` node, and add the following code to th
 .. tabs::
  .. code-tab:: gdscript GDScript
 
-    func _on_start_button_pressed():
+    func _on_start_button_pressed() -> void:
         $StartButton.hide()
         start_game.emit()
 
-    func _on_message_timer_timeout():
+    func _on_message_timer_timeout() -> void:
         $Message.hide()
 
  .. code-tab:: csharp
@@ -285,12 +285,20 @@ mobs to remove themselves. We can do this with the "group" feature.
 
 In the ``Mob`` scene, select the root node and click the "Node" tab next to the
 Inspector (the same place where you find the node's signals). Next to "Signals",
-click "Groups" and you can type a new group name and click "Add".
+click "Groups" to open the group overview
+and the "+" button to open the "Create New Group" dialog.
 
 .. image:: img/group_tab.webp
 
-Now all mobs will be in the "mobs" group. We can then add the following line to
-the ``new_game()`` function in ``Main``:
+Name the group ``mobs`` and click "ok" to add a new scene group.
+
+.. image:: img/add_group_dialog.webp
+
+Now all mobs will be in the "mobs" group.
+
+.. image:: img/scene_group_mobs.webp
+
+We can then add the following line to the ``new_game()`` function in ``Main``:
 
 .. tabs::
  .. code-tab:: gdscript GDScript

getting_started/first_2d_game/07.finishing-up.rst

@@ -45,12 +45,12 @@ Finally, add ``$DeathSound.play()`` in the ``game_over()`` function.
 .. tabs::
  .. code-tab:: gdscript GDScript
 
-    func game_over():
+    func game_over() -> void:
         ...
         $Music.stop()
         $DeathSound.play()
 
-    func new_game():
+    func new_game() -> void:
         ...
         $Music.play()