Snake-case .tscn, .gd and _on_* callbacks

Co-authored-by: Doug Thompson <s-git@dougthompson.co.uk>

getting_started/first_2d_game/04.creating_the_enemy.rst

@@ -94,7 +94,7 @@ Add a script to the ``Mob`` like this:
     public:
         void _init() {}
         void _ready();
-        void _on_VisibleOnScreenNotifier2D_screen_exited();
+        void _on_visible_on_screen_notifier_2d_screen_exited();
 
         static void _register_methods();
     };
@@ -164,7 +164,7 @@ add this code:
  .. code-tab:: cpp
 
     // This code goes in `mob.cpp`.
-    void Mob::_on_VisibleOnScreenNotifier2D_screen_exited() {
+    void Mob::_on_visible_on_screen_notifier_2d_screen_exited() {
         queue_free();
     }
 

getting_started/first_2d_game/05.the_main_game_scene.rst

@@ -10,7 +10,7 @@ Create a new scene and add a :ref:`Node <class_Node>` named ``Main``.
 be a container for handling game logic. It does not require 2D functionality itself.)
 
 Click the **Instance** button (represented by a chain link icon) and select your saved
-``Player.tscn``.
+``player.tscn``.
 
 .. image:: img/instance_scene.webp
 
@@ -178,9 +178,9 @@ under "Script Variables".
 
 You can assign this property's value in two ways:
 
-- Drag ``Mob.tscn`` from the "FileSystem" dock and drop it in the **Mob Scene**
+- Drag ``mob.tscn`` from the "FileSystem" dock and drop it in the **Mob Scene**
   property.
-- Click the down arrow next to "[empty]" and choose "Load". Select ``Mob.tscn``.
+- Click the down arrow next to "[empty]" and choose "Load". Select ``mob.tscn``.
 
 Next, select the instance of the ``Player`` scene under ``Main`` node in the Scene dock,
 and access the Node dock on the sidebar. Make sure to have the Signals tab selected
@@ -424,11 +424,11 @@ call to ``_ready()``:
     }
 
 Let's also assign ``Main`` as our "Main Scene" - the one that runs automatically
-when the game launches. Press the "Play" button and select ``Main.tscn`` when
+when the game launches. Press the "Play" button and select ``main.tscn`` when
 prompted.
 
 .. tip:: If you had already set another scene as the "Main Scene", you can right
-         click ``Main.tscn`` in the FileSystem dock and select "Set As Main Scene".
+         click ``main.tscn`` in the FileSystem dock and select "Set As Main Scene".
 
 You should be able to move the player around, see mobs spawning, and see the
 player disappear when hit by a mob.

getting_started/first_2d_game/06.heads_up_display.rst

@@ -411,7 +411,7 @@ with the changing score:
         _hud->update_score(score);
 
 Now you're ready to play! Click the "Play the Project" button. You will be asked
-to select a main scene, so choose ``Main.tscn``.
+to select a main scene, so choose ``main.tscn``.
 
 Removing old creeps
 ~~~~~~~~~~~~~~~~~~~

getting_started/first_3d_game/01.game_setup.rst

@@ -47,7 +47,7 @@ a node to the scene, you can press :kbd:`Ctrl + a` (or :kbd:`Cmd + a` on macOS).
 
 .. image:: img/01.game_setup/05.main_node.png
 
-Save the scene as ``Main.tscn`` by pressing :kbd:`Ctrl + s` (:kbd:`Cmd + s` on macOS).
+Save the scene as ``main.tscn`` by pressing :kbd:`Ctrl + s` (:kbd:`Cmd + s` on macOS).
 
 We'll start by adding a floor that'll prevent the characters from falling. To
 create static colliders like the floor, walls, or ceilings, you can use :ref:`StaticBody3D <class_StaticBody3D>` nodes. They require :ref:`CollisionShape3D <class_CollisionShape3D>` child nodes to

getting_started/first_3d_game/02.player_input.rst

@@ -81,7 +81,7 @@ You can toggle the model's visibility by clicking the eye icon next to the
 
 |image5|
 
-Save the scene as ``Player.tscn``
+Save the scene as ``player.tscn``
 
 With the nodes ready, we can almost get coding. But first, we need to define
 some input actions.

getting_started/first_3d_game/03.player_movement_code.rst

@@ -359,14 +359,14 @@ tab at the top of the editor to do so.
 |image1|
 
 If you closed the scene before, head to the *FileSystem* dock and double-click
-``Main.tscn`` to re-open it.
+``main.tscn`` to re-open it.
 
 To instantiate the ``Player``, right-click on the ``Main`` node and select *Instance
 Child Scene*.
 
 |image2|
 
-In the popup, double-click ``Player.tscn``. The character should appear in the
+In the popup, double-click ``player.tscn``. The character should appear in the
 center of the viewport.
 
 Adding a camera

getting_started/first_3d_game/04.mob_scene.rst

@@ -9,7 +9,7 @@ In this part, you're going to code the monsters, which we'll call mobs. In the
 next lesson, we'll spawn them randomly around the playable area.
 
 Let's design the monsters themselves in a new scene. The node structure is going
-to be similar to the ``Player.tscn`` scene.
+to be similar to the ``player.tscn`` scene.
 
 Create a scene with, once again, a :ref:`CharacterBody3D <class_CharacterBody3D>` node as its root. Name it
 ``Mob``. Add a child node :ref:`Node3D <class_Node3D>`, name it ``Pivot``. And drag and drop
@@ -93,7 +93,7 @@ Coding the mob's movement
 
 Let's implement the monster's motion. We're going to do this in two steps.
 First, we'll write a script on the ``Mob`` that defines a function to initialize
-the monster. We'll then code the randomized spawn mechanism in the ``Main.tscn`` scene
+the monster. We'll then code the randomized spawn mechanism in the ``main.tscn`` scene
 and call the function from there.
 
 Attach a script to the ``Mob``.

getting_started/first_3d_game/05.spawning_mobs.rst

@@ -10,7 +10,7 @@ you will have monsters roaming the game board.
 
 |image0|
 
-Double-click on ``Main.tscn`` in the *FileSystem* dock to open the ``Main`` scene.
+Double-click on ``main.tscn`` in the *FileSystem* dock to open the ``Main`` scene.
 
 Before drawing the path, we're going to change the game resolution. Our game has
 a default window size of ``1152x648``. We're going to set it to ``720x540``, a
@@ -157,7 +157,7 @@ Spawning monsters randomly
 
 Right-click on the ``Main`` node and attach a new script to it.
 
-We first export a variable to the *Inspector* so that we can assign ``Mob.tscn``
+We first export a variable to the *Inspector* so that we can assign ``mob.tscn``
 or any other monster to it.
 
 .. tabs::
@@ -181,9 +181,9 @@ or any other monster to it.
 
 We want to spawn mobs at regular time intervals. To do this, we need to go back
 to the scene and add a timer. Before that, though, we need to assign the
-``Mob.tscn`` file to the ``mob_scene`` property above (otherwise it's null!)
+``mob.tscn`` file to the ``mob_scene`` property above (otherwise it's null!)
 
-Head back to the 3D screen and select the ``Main`` node. Drag ``Mob.tscn`` from
+Head back to the 3D screen and select the ``Main`` node. Drag ``mob.tscn`` from
 the *FileSystem* dock to the *Mob Scene* slot in the *Inspector*.
 
 |image20|
@@ -269,7 +269,7 @@ what the *PathFollow* node's ``progress_ratio`` expects:
 The path we have set is around the camera's viewport, so any random value between 0 and 1
 is a random position alongside the edges of the viewport!
 
-Here is the complete ``Main.gd`` script so far, for reference.
+Here is the complete ``main.gd`` script so far, for reference.
 
 .. tabs::
  .. code-tab:: gdscript GDScript

getting_started/first_3d_game/06.jump_and_squash.rst

@@ -74,7 +74,7 @@ see a list of named checkboxes.
 
 |image4|
 
-Next up are the ``Player`` and the ``Mob``. Open ``Player.tscn`` by double-clicking
+Next up are the ``Player`` and the ``Mob``. Open ``player.tscn`` by double-clicking
 the file in the *FileSystem* dock.
 
 Select the *Player* node and set its *Collision -> Mask* to both "enemies" and
@@ -83,7 +83,7 @@ Select the *Player* node and set its *Collision -> Mask* to both "enemies" and
 
 |image5|
 
-Then, open the *Mob* scene by double-clicking on ``Mob.tscn`` and select the
+Then, open the *Mob* scene by double-clicking on ``mob.tscn`` and select the
 ``Mob`` node.
 
 Set its *Collision -> Layer* to "enemies" and unset its *Collision -> Mask*,
@@ -180,7 +180,7 @@ We need to detect collisions with a monster and to differentiate them from
 collisions with the floor. To do so, we can use Godot's :ref:`group
 <doc_groups>` tagging feature.
 
-Open the scene ``Mob.tscn`` again and select the *Mob* node. Go to the *Node*
+Open the scene ``mob.tscn`` again and select the *Mob* node. Go to the *Node*
 dock on the right to see a list of signals. The *Node* dock has two tabs:
 *Signals*, which you've already used, and *Groups*, which allows you to assign
 tags to nodes.
@@ -347,7 +347,7 @@ destroy the mob.
 We will use the signal to add points to the score in the next lesson.
 
 With that, you should be able to kill monsters by jumping on them. You can press
-:kbd:`F5` to try the game and set ``Main.tscn`` as your project's main scene.
+:kbd:`F5` to try the game and set ``main.tscn`` as your project's main scene.
 
 However, the player won't die yet. We'll work on that in the next part.
 

getting_started/first_3d_game/07.killing_player.rst

@@ -17,7 +17,7 @@ works well for hitboxes.
 Hitbox with the Area node
 -------------------------
 
-Head back to the ``Player.tscn`` scene and add a new child node :ref:`Area3D <class_Area3D>`. Name it
+Head back to the ``player.tscn`` scene and add a new child node :ref:`Area3D <class_Area3D>`. Name it
 ``MobDetector``
 Add a :ref:`CollisionShape3D <class_CollisionShape3D>` node as a child of it.
 
@@ -128,7 +128,7 @@ We can use the ``Player``\ 's ``hit`` signal to end the game. All we need
 to do is connect it to the ``Main`` node and stop the ``MobTimer`` in
 reaction.
 
-Open ``Main.tscn``, select the ``Player`` node, and in the *Node* dock,
+Open ``main.tscn``, select the ``Player`` node, and in the *Node* dock,
 connect its ``hit`` signal to the ``Main`` node.
 
 |image5|
@@ -165,7 +165,7 @@ Code checkpoint
 Here are the complete scripts for the ``Main``, ``Mob``, and ``Player`` nodes,
 for reference. You can use them to compare and check your code.
 
-Starting with ``Main.gd``.
+Starting with ``main.gd``.
 
 .. tabs::
  .. code-tab:: gdscript GDScript

getting_started/first_3d_game/08.score_and_replay.rst

@@ -102,12 +102,12 @@ monsters from the code, we cannot connect the mob signal to the ``ScoreLabel`` v
 Instead, we have to make the connection from the code every time we spawn a
 monster.
 
-Open the script ``Main.gd``. If it's still open, you can click on its name in
+Open the script ``main.gd``. If it's still open, you can click on its name in
 the script editor's left column.
 
 |image8|
 
-Alternatively, you can double-click the ``Main.gd`` file in the *FileSystem*
+Alternatively, you can double-click the ``main.gd`` file in the *FileSystem*
 dock.
 
 At the bottom of the ``_on_mob_timer_timeout()`` function, add the following
@@ -119,7 +119,7 @@ line:
     func _on_mob_timer_timeout():
         #...
         # We connect the mob to the score label to update the score upon squashing one.
-        mob.squashed.connect($UserInterface/ScoreLabel._on_Mob_squashed.bind())
+        mob.squashed.connect($UserInterface/ScoreLabel._on_mob_squashed.bind())
 
   .. code-tab:: csharp
 
@@ -131,9 +131,9 @@ line:
     }
 
 This line means that when the mob emits the ``squashed`` signal, the
-``ScoreLabel`` node will receive it and call the function ``_on_Mob_squashed()``.
+``ScoreLabel`` node will receive it and call the function ``_on_mob_squashed()``.
 
-Head back to the ``ScoreLabel.gd`` script to define the ``_on_Mob_squashed()``
+Head back to the ``ScoreLabel.gd`` script to define the ``_on_mob_squashed()``
 callback function.
 
 There, we increment the score and update the displayed text.
@@ -141,7 +141,7 @@ There, we increment the score and update the displayed text.
 .. tabs::
   .. code-tab:: gdscript GDScript
 
-    func _on_Mob_squashed():
+    func _on_mob_squashed():
         score += 1
         text = "Score: %s" % score
 
@@ -163,12 +163,6 @@ when using the ``print()`` function.
     You can learn more about string formatting here: :ref:`doc_gdscript_printf`.
     In C#, consider using `string interpolation with "$" <https://learn.microsoft.com/en-us/dotnet/csharp/language-reference/tokens/interpolated>`_.
 
-
-.. note::
-
-    If you get an error when you squash a mob
-    check your capital letters in the signal "_on_Mob_squashed"
-
 You can now play the game and squash a few enemies to see the score
 increase.
 
@@ -188,7 +182,7 @@ Retrying the game
 We'll now add the ability to play again after dying. When the player dies, we'll
 display a message on the screen and wait for input.
 
-Head back to the ``Main.tscn`` scene, select the ``UserInterface`` node, add a
+Head back to the ``main.tscn`` scene, select the ``UserInterface`` node, add a
 child node :ref:`ColorRect <class_ColorRect>`, and name it ``Retry``. This node fills a
 rectangle with a uniform color and will serve as an overlay to darken the
 screen.
@@ -234,7 +228,7 @@ Coding the retry option
 We can now head to the code to show and hide the ``Retry`` node when the player
 dies and plays again.
 
-Open the script ``Main.gd``. First, we want to hide the overlay at the start of
+Open the script ``main.gd``. First, we want to hide the overlay at the start of
 the game. Add this line to the ``_ready()`` function.
 
 .. tabs::
@@ -361,7 +355,7 @@ game's viewport.
 And that does it for this lesson. In the next part, we'll add an animation to
 make the game both look and feel much nicer.
 
-Here is the complete ``Main.gd`` script for reference.
+Here is the complete ``main.gd`` script for reference.
 
 .. tabs::
   .. code-tab:: gdscript GDScript
@@ -391,7 +385,7 @@ Here is the complete ``Main.gd`` script for reference.
         add_child(mob)
 
         # We connect the mob to the score label to update the score upon squashing one.
-        mob.squashed.connect($UserInterface/ScoreLabel._on_Mob_squashed.bind())
+        mob.squashed.connect($UserInterface/ScoreLabel._on_mob_squashed.bind())
 
     func _on_player_hit():
         $MobTimer.stop()

getting_started/first_3d_game/09.adding_animations.rst

@@ -259,11 +259,11 @@ node structure, you can copy them to different scenes.
 For example, both the ``Mob`` and the ``Player`` scenes have a ``Pivot`` and a
 ``Character`` node, so we can reuse animations between them.
 
-Open the *Player* scene, select the AnimationPlayer node and open the "float" 
+Open the *Player* scene, select the AnimationPlayer node and open the "float"
-animation. Next, click on **Animation > Copy**. Then open ``Mob.tscn``, 
+animation. Next, click on **Animation > Copy**. Then open ``mob.tscn``,
-create an AnimationPlayer child node and select it. Click **Animation > Paste** 
+create an AnimationPlayer child node and select it. Click **Animation > Paste**
-and make sure that the button with an "A+" icon (Autoplay on Load) and the 
+and make sure that the button with an "A+" icon (Autoplay on Load) and the
-looping arrows (Animation looping) are also turned on in the animation editor 
+looping arrows (Animation looping) are also turned on in the animation editor
 in the bottom panel. That's it; all monsters will now play the float animation.
 
 We can change the playback speed based on the creature's ``random_speed``. Open

getting_started/step_by_step/instancing.rst

@@ -11,7 +11,7 @@ into any number of scenes. This feature helps you break down and organize your
 game's different components.
 
 You can create as many scenes as you'd like and save them as files with the
-``.tscn`` extension, which stands for "text scene". The ``Label.tscn`` file from
+``.tscn`` extension, which stands for "text scene". The ``tabel.tscn`` file from
 the previous lesson was an example. We call those files "Packed Scenes" as they
 pack information about your scene's content.
 
@@ -33,7 +33,7 @@ editor hides their content by default. When you instance the Ball, you only see
 the Ball node. Notice also how each duplicate has a unique name.
 
 Every instance of the Ball scene starts with the same structure and properties
-as ``Ball.tscn``. However, you can modify each independently, such as changing
+as ``ball.tscn``. However, you can modify each independently, such as changing
 how they bounce, how heavy they are, or any property exposed by the source
 scene.
 
@@ -64,8 +64,8 @@ Finally, click the Import & Edit button.
 
 .. image:: img/instancing_import_and_edit_button.png
 
-The project contains two packed scenes: ``Main.tscn``, containing walls against
+The project contains two packed scenes: ``main.tscn``, containing walls against
-which the ball collides, and ``Ball.tscn``. The Main scene should open
+which the ball collides, and ``ball.tscn``. The Main scene should open
 automatically.
 
 .. image:: img/instancing_main_scene.png
@@ -111,14 +111,14 @@ There is more to instances. With this feature, you can:
 
 1. Change the properties of one ball without affecting the others using the
    Inspector.
-2. Change the default properties of every Ball by opening the ``Ball.tscn`` scene
+2. Change the default properties of every Ball by opening the ``ball.tscn`` scene
    and making a change to the Ball node there. Upon saving, all instances of the
    Ball in the project will see their values update.
 
 .. note:: Changing a property on an instance always overrides values from the
           corresponding packed scene.
 
-Let's try this. Open ``Ball.tscn`` and select the Ball node. In the Inspector on
+Let's try this. Open ``ball.tscn`` and select the Ball node. In the Inspector on
 the right, click on the PhysicsMaterial property to expand it.
 
 .. image:: img/instancing_physics_material_expand.png

getting_started/step_by_step/nodes_and_scenes.rst

@@ -173,7 +173,7 @@ A popup window appears and invites you to select the main scene.
 .. image:: img/nodes_and_scenes_13_main_scene_popup.webp
 
 Click the Select button, and in the file dialog that appears, double click on
-label.tscn.
+``label.tscn``.
 
 .. image:: img/nodes_and_scenes_14_select_main_scene.webp
 

getting_started/step_by_step/scripting_first_script.rst

@@ -89,7 +89,7 @@ other options by default and click the Create button to create the script.
 
 .. image:: img/scripting_first_script_attach_node_script.webp
 
-The Script workspace should appear with your new ``Sprite2D.gd`` file open and
+The Script workspace should appear with your new ``sprite_2d.gd`` file open and
 the following line of code:
 
 .. tabs::
@@ -305,7 +305,7 @@ Our node currently moves by itself. In the next part
 Complete script
 ---------------
 
-Here is the complete ``Sprite2D.gd`` file for reference.
+Here is the complete ``sprite_2d.gd`` file for reference.
 
 .. tabs::
  .. code-tab:: gdscript GDScript

getting_started/step_by_step/scripting_player_input.rst

@@ -11,7 +11,7 @@ Listening to player input
 
 Building upon the previous lesson :ref:`doc_scripting_first_script`, let's look
 at another important feature of any game: giving control to the player.
-To add this, we need to modify our ``Sprite2D.gd`` code.
+To add this, we need to modify our ``sprite_2d.gd`` code.
 
 .. image:: img/scripting_first_script_moving_with_input.gif
 
@@ -114,7 +114,7 @@ causing the sprite to move forward.
 Complete script
 ---------------
 
-Here is the complete ``Sprite2D.gd`` file for reference.
+Here is the complete ``sprite_2d.gd`` file for reference.
 
 .. tabs::
  .. code-tab:: gdscript GDScript

getting_started/step_by_step/signals.rst

@@ -184,7 +184,7 @@ following code, which we saw two lessons ago:
         Position += velocity * (float)delta;
     }
 
-Your complete ``Sprite2D.gd`` code should look like the following.
+Your complete ``sprite_2d.gd`` code should look like the following.
 
 .. tabs::
  .. code-tab:: gdscript GDScript
@@ -313,7 +313,7 @@ which the script is attached. When the Timer emits ``timeout``, we want to call
 the function ``_on_timer_timeout()``, that we need to define. Let's add it at the
 bottom of our script and use it to toggle our sprite's visibility.
 
-.. note:: By convention, we name these callback methods in GDScript as 
+.. note:: By convention, we name these callback methods in GDScript as
           "_on_node_name_signal_name" and in C# as "OnNodeNameSignalName".
           Here, it'll be "_on_timer_timeout" for GDScript and OnTimerTimeout() for C#.
 
@@ -341,7 +341,7 @@ Complete script
 ---------------
 
 That's it for our little moving and blinking Godot icon demo!
-Here is the complete ``Sprite2D.gd`` file for reference.
+Here is the complete ``sprite_2d.gd`` file for reference.
 
 .. tabs::
  .. code-tab:: gdscript GDScript
@@ -354,7 +354,7 @@ Here is the complete ``Sprite2D.gd`` file for reference.
 
     func _ready():
         var timer = get_node("Timer")
-        timer.timeout.connect(_on_Timer_timeout)
+        timer.timeout.connect(_on_timer_timeout)
 
 
     func _process(delta):
@@ -367,7 +367,7 @@ Here is the complete ``Sprite2D.gd`` file for reference.
         set_process(not is_processing())
 
 
-    func _on_Timer_timeout():
+    func _on_timer_timeout():
         visible = not visible
 
  .. code-tab:: csharp C#

tutorials/3d/using_gridmaps.rst

@@ -28,7 +28,7 @@ Creating a MeshLibrary
 ----------------------
 
 To begin, you need a :ref:`class_MeshLibrary`, which is a collection
-of individual meshes that can be used in the gridmap. Open the "MeshLibrary_Source.tscn"
+of individual meshes that can be used in the gridmap. Open the "mesh_library_source.tscn"
 scene to see an example of how to set up the mesh library.
 
 .. image:: img/gridmap_meshlibrary1.png

tutorials/audio/recording_with_microphone.rst

@@ -65,7 +65,7 @@ and :ref:`set_recording_active() <class_AudioEffectRecord_method_set_recording_a
 .. tabs::
   .. code-tab:: gdscript GDScript
 
-    func _on_RecordButton_pressed():
+    func _on_record_button_pressed():
         if effect.is_recording_active():
             recording = effect.get_recording()
             $PlayButton.disabled = false
@@ -114,7 +114,7 @@ the recorded stream can be stored into the ``recording`` variable by calling
 .. tabs::
   .. code-tab:: gdscript GDScript
 
-    func _on_PlayButton_pressed():
+    func _on_play_button_pressed():
         print(recording)
         print(recording.format)
         print(recording.mix_rate)
@@ -145,7 +145,7 @@ To playback the recording, you assign the recording as the stream of the
 .. tabs::
   .. code-tab:: gdscript GDScript
 
-    func _on_SaveButton_pressed():
+    func _on_save_button_pressed():
         var save_path = $SaveButton/Filename.text
         recording.save_to_wav(save_path)
         $Status.text = "Saved WAV file to: %s\n(%s)" % [save_path, ProjectSettings.globalize_path(save_path)]

tutorials/best_practices/scenes_versus_scripts.rst

@@ -11,7 +11,7 @@ declarative code.
 
 Each system's capabilities are different as a result.
 Scenes can define how an extended class initializes, but not what its
-behavior actually is. Scenes are often used in conjunction with a script, 
+behavior actually is. Scenes are often used in conjunction with a script,
 the scene declaring a composition of nodes, and the script adding behaviour with imperative code.
 
 Anonymous types
@@ -150,13 +150,13 @@ with it, and finally adds it as a child of the ``Main`` node:
 .. tabs::
   .. code-tab:: gdscript GDScript
 
-    # Main.gd
+    # main.gd
     extends Node
 
     func _init():
         var child = Node.new()
         child.name = "Child"
-        child.script = preload("Child.gd")
+        child.script = preload("child.gd")
         child.owner = self
         add_child(child)
 
@@ -226,7 +226,7 @@ In the end, the best approach is to consider the following:
       {
           public static PackedScene MyScene { get; } = GD.Load<PackedScene>("MyScene.tscn");
       }
-      
+
       // Main.cs
       public partial class Main : Node
       {

tutorials/editor/project_settings.rst

@@ -11,6 +11,6 @@ Godot stores the project settings in a project.godot file, a plain text file in
 
 To access that dialog, select Project -> Project Settings.
 
-Once the window opens, let's select a main scene. Locate the `Application/Run/Main Scene` property and click on it to select 'Hello.tscn'.
+Once the window opens, let's select a main scene. Locate the `Application/Run/Main Scene` property and click on it to select 'hello.tscn'.
 
 The project settings dialog provides a lot of options that can be saved to a project.godot file and shows their default values. If you change a value, a tick appears to the left of its name. This means that the property will be saved in the project.godot file and remembered.

tutorials/physics/using_area_2d.rst

@@ -73,7 +73,7 @@ use ``area_entered``. However, let's assume our player is a ``CharacterBody2D``
 
     extends Area2D
 
-    func _on_Coin_body_entered(body):
+    func _on_coin_body_entered(body):
         queue_free()
 
  .. code-tab:: csharp

tutorials/physics/using_character_body_2d.rst

@@ -219,7 +219,7 @@ To see these examples in action, download the sample project:
 Movement and walls
 ~~~~~~~~~~~~~~~~~~
 
-If you've downloaded the sample project, this example is in "BasicMovement.tscn".
+If you've downloaded the sample project, this example is in "basic_movement.tscn".
 
 For this example, add a ``CharacterBody2D`` with two children: a ``Sprite2D`` and a
 ``CollisionShape2D``. Use the Godot "icon.png" as the Sprite2D's texture (drag it
@@ -291,7 +291,7 @@ to get the behavior you want.
 Bouncing/reflecting
 ~~~~~~~~~~~~~~~~~~~
 
-What if you don't want a sliding collision response? For this example ("BounceandCollide.tscn"
+What if you don't want a sliding collision response? For this example ("bounce_and_collide.tscn"
 in the sample project), we have a character shooting bullets and we want the bullets to
 bounce off the walls.
 
@@ -306,7 +306,7 @@ uses the mouse pointer. Here is the code for the Player, using ``move_and_slide(
 
     extends CharacterBody2D
 
-    var Bullet = preload("res://Bullet.tscn")
+    var Bullet = preload("res://bullet.tscn")
     var speed = 200
 
     func get_input():
@@ -336,7 +336,7 @@ uses the mouse pointer. Here is the code for the Player, using ``move_and_slide(
 
     public partial class CBExample : CharacterBody2D
     {
-        private PackedScene _bullet = (PackedScene)GD.Load("res://Bullet.tscn");
+        private PackedScene _bullet = (PackedScene)GD.Load("res://bullet.tscn");
         public int Speed = 200;
 
         public void GetInput()

tutorials/plugins/editor/3d_gizmos.rst

@@ -30,7 +30,7 @@ This would be a basic setup:
 
 ::
 
-    # MyCustomGizmoPlugin.gd
+    # my_custom_gizmo_plugin.gd
     extends EditorNode3DGizmoPlugin
 
 
@@ -45,7 +45,7 @@ This would be a basic setup:
     extends EditorPlugin
 
 
-    const MyCustomGizmoPlugin = preload("res://addons/my-addon/MyCustomGizmoPlugin.gd")
+    const MyCustomGizmoPlugin = preload("res://addons/my-addon/my_custom_gizmo_plugin.gd")
 
     var gizmo_plugin = MyCustomGizmoPlugin.new()
 
@@ -126,7 +126,7 @@ So the final plugin would look somewhat like this:
     extends EditorNode3DGizmoPlugin
 
 
-    const MyCustomNode3D = preload("res://addons/my-addon/MyCustomNode3D.gd")
+    const MyCustomNode3D = preload("res://addons/my-addon/my_custom_node_3d.gd")
 
 
     func _init():
@@ -177,12 +177,12 @@ for the Node3D nodes we want to target.
 
 ::
 
-    # MyCustomGizmoPlugin.gd
+    # my_custom_gizmo_plugin.gd
     extends EditorNode3DGizmoPlugin
 
 
-    const MyCustomNode3D = preload("res://addons/my-addon/MyCustomNode3D.gd")
+    const MyCustomNode3D = preload("res://addons/my-addon/my_custom_node_3d.gd")
-    const MyCustomGizmo = preload("res://addons/my-addon/MyCustomGizmo.gd")
+    const MyCustomGizmo = preload("res://addons/my-addon/my_custom_gizmo.gd")
 
 
     func _init():
@@ -201,7 +201,7 @@ This way all the gizmo logic and drawing methods can be implemented in a new cla
 
 ::
 
-    # MyCustomGizmo.gd
+    # my_custom_gizmo.gd
     extends EditorNode3DGizmo
 
 

tutorials/plugins/editor/inspector_plugins.rst

@@ -52,7 +52,7 @@ you should remove the instance you have added by calling
 
 
     func _enter_tree():
-        plugin = preload("res://addons/my_inspector_plugin/MyInspectorPlugin.gd").new()
+        plugin = preload("res://addons/my_inspector_plugin/my_inspector_plugin.gd").new()
         add_inspector_plugin(plugin)
 
 
@@ -87,7 +87,7 @@ you should remove the instance you have added by calling
 Interacting with the inspector
 ------------------------------
 
-To interact with the inspector dock, your ``MyInspectorPlugin.gd`` script must
+To interact with the inspector dock, your ``my_inspector_plugin.gd`` script must
 extend the :ref:`class_EditorInspectorPlugin` class. This class provides several
 virtual methods that affect how the inspector handles properties.
 
@@ -112,10 +112,10 @@ specifically add :ref:`class_EditorProperty`-based controls.
 .. tabs::
  .. code-tab:: gdscript GDScript
 
-    # MyInspectorPlugin.gd
+    # my_inspector_plugin.gd
     extends EditorInspectorPlugin
 
-    var RandomIntEditor = preload("res://addons/my_inspector_plugin/RandomIntEditor.gd")
+    var RandomIntEditor = preload("res://addons/my_inspector_plugin/random_int_editor.gd")
 
 
     func _can_handle(object):
@@ -149,8 +149,8 @@ specifically add :ref:`class_EditorProperty`-based controls.
             return true;
         }
 
-        public override bool _ParseProperty(GodotObject @object, Variant.Type type, 
+        public override bool _ParseProperty(GodotObject @object, Variant.Type type,
-            string name, PropertyHint hintType, string hintString, 
+            string name, PropertyHint hintType, string hintString,
             PropertyUsageFlags usageFlags, bool wide)
         {
             // We handle properties of type integer.
@@ -197,7 +197,7 @@ followed by ``set_bottom_editor()`` to position it below the name.
 .. tabs::
  .. code-tab:: gdscript GDScript
 
-    # RandomIntEditor.gd
+    # random_int_editor.gd
     extends EditorProperty
 
 

tutorials/plugins/editor/making_main_screen_plugins.rst

@@ -124,7 +124,7 @@ Add a script to the button like this:
     extends Button
 
 
-    func _on_PrintHello_pressed():
+    func _on_print_hello_pressed():
         print("Hello from the main screen plugin!")
 
  .. code-tab:: csharp

tutorials/plugins/editor/visual_shader_plugins.rst

@@ -32,7 +32,7 @@ all you need to initialize your plugin.
 
 ::
 
-    # PerlinNoise3D.gd
+    # perlin_noise_3d.gd
     @tool
     extends VisualShaderNodeCustom
     class_name VisualShaderNodePerlinNoise3D

tutorials/scripting/gdscript/gdscript_basics.rst

@@ -1380,7 +1380,7 @@ By default, all script files are unnamed classes. In this case, you can only
 reference them using the file's path, using either a relative or an absolute
 path. For example, if you name a script file ``character.gd``::
 
-   # Inherit from 'Character.gd'.
+   # Inherit from 'character.gd'.
 
    extends "res://path/to/character.gd"
 
@@ -1399,7 +1399,7 @@ editor. For that, you use the ``class_name`` keyword. You can optionally use
 the ``@icon`` annotation with a path to an image, to use it as an icon. Your
 class will then appear with its new icon in the editor::
 
-   # Item.gd
+   # item.gd
 
    @icon("res://interface/icons/item.png")
    class_name Item
@@ -1515,7 +1515,7 @@ explicit constructor::
 
 This is better explained through examples. Consider this scenario::
 
-    # State.gd (inherited class).
+    # state.gd (inherited class).
     var entity = null
     var message = null
 
@@ -1528,8 +1528,8 @@ This is better explained through examples. Consider this scenario::
         message = m
 
 
-    # Idle.gd (inheriting class).
+    # idle.gd (inheriting class).
-    extends "State.gd"
+    extends "state.gd"
 
 
     func _init(e=null, m=null):
@@ -1539,17 +1539,17 @@ This is better explained through examples. Consider this scenario::
 
 There are a few things to keep in mind here:
 
-1. If the inherited class (``State.gd``) defines a ``_init`` constructor that takes
+1. If the inherited class (``state.gd``) defines a ``_init`` constructor that takes
-   arguments (``e`` in this case), then the inheriting class (``Idle.gd``) *must*
+   arguments (``e`` in this case), then the inheriting class (``idle.gd``) *must*
-   define ``_init`` as well and pass appropriate parameters to ``_init`` from ``State.gd``.
+   define ``_init`` as well and pass appropriate parameters to ``_init`` from ``state.gd``.
-2. ``Idle.gd`` can have a different number of arguments than the base class ``State.gd``.
+2. ``idle.gd`` can have a different number of arguments than the base class ``state.gd``.
-3. In the example above, ``e`` passed to the ``State.gd`` constructor is the same ``e`` passed
+3. In the example above, ``e`` passed to the ``state.gd`` constructor is the same ``e`` passed
-   in to ``Idle.gd``.
+   in to ``idle.gd``.
-4. If ``Idle.gd``'s ``_init`` constructor takes 0 arguments, it still needs to pass some value
+4. If ``idle.gd``'s ``_init`` constructor takes 0 arguments, it still needs to pass some value
-   to the ``State.gd`` base class, even if it does nothing. This brings us to the fact that you
+   to the ``state.gd`` base class, even if it does nothing. This brings us to the fact that you
    can pass expressions to the base constructor as well, not just variables, e.g.::
 
-    # Idle.gd
+    # idle.gd
 
     func _init():
         super(5)
@@ -1630,7 +1630,7 @@ Example::
         set(value):
             milliseconds = value * 1000
 
-Using the variable's name to set it inside its own setter or to get it inside its own getter will directly access the underlying member, 
+Using the variable's name to set it inside its own setter or to get it inside its own getter will directly access the underlying member,
 so it won't generate infinite recursion and saves you from explicitly declaring another variable::
 
     signal changed(new_value)
@@ -1761,16 +1761,16 @@ signals of nodes like :ref:`class_Button` or :ref:`class_RigidBody3D`.
 
 In the example below, we connect the ``health_depleted`` signal from a
 ``Character`` node to a ``Game`` node. When the ``Character`` node emits the
-signal, the game node's ``_on_Character_health_depleted`` is called::
+signal, the game node's ``_on_character_health_depleted`` is called::
 
-    # Game.gd
+    # game.gd
 
     func _ready():
         var character_node = get_node('Character')
-        character_node.health_depleted.connect(_on_Character_health_depleted)
+        character_node.health_depleted.connect(_on_character_health_depleted)
 
 
-    func _on_Character_health_depleted():
+    func _on_character_health_depleted():
         get_tree().reload_current_scene()
 
 You can emit as many arguments as you want along with a signal.
@@ -1779,12 +1779,12 @@ Here is an example where this is useful. Let's say we want a life bar on screen
 to react to health changes with an animation, but we want to keep the user
 interface separate from the player in our scene tree.
 
-In our ``Character.gd`` script, we define a ``health_changed`` signal and emit
+In our ``character.gd`` script, we define a ``health_changed`` signal and emit
 it with :ref:`Signal.emit() <class_Signal_method_emit>`, and from
 a ``Game`` node higher up our scene tree, we connect it to the ``Lifebar`` using
 the :ref:`Signal.connect() <class_Signal_method_connect>` method::
 
-    # Character.gd
+    # character.gd
 
     ...
     signal health_changed
@@ -1801,7 +1801,7 @@ the :ref:`Signal.connect() <class_Signal_method_connect>` method::
 
 ::
 
-    # Lifebar.gd
+    # lifebar.gd
 
     # Here, we define a function to use as a callback when the
     # character's health_changed signal is emitted.
@@ -1824,7 +1824,7 @@ node in this case.
 
 ::
 
-    # Game.gd
+    # game.gd
 
     func _ready():
         var character_node = get_node('Character')
@@ -1862,7 +1862,7 @@ taken by each character on the screen, like ``Player1 took 22 damage.``. The
 damage. So when we connect the signal to the in-game console, we can add the
 character's name in the binds array argument::
 
-    # Game.gd
+    # game.gd
 
     func _ready():
         var character_node = get_node('Character')
@@ -1872,7 +1872,7 @@ character's name in the binds array argument::
 
 Our ``BattleLog`` node receives each element in the binds array as an extra argument::
 
-    # BattleLog.gd
+    # battle_log.gd
 
     func _on_Character_health_changed(old_value, new_value, character_name):
         if not new_value <= old_value:

tutorials/scripting/gdscript/static_typing.rst

@@ -33,9 +33,9 @@ who work with your code should always pass an ``Item`` to the
 
 ::
 
-    # In 'Item.gd'.
+    # In 'item.gd'.
     class_name Item
-    # In 'Inventory.gd'.
+    # In 'inventory.gd'.
     class_name Inventory
 
 
@@ -123,11 +123,11 @@ script you want to use as a type in a constant:
 
 ::
 
-    const Rifle = preload("res://player/weapons/Rifle.gd")
+    const Rifle = preload("res://player/weapons/rifle.gd")
     var my_rifle: Rifle
 
 The second method is to use the ``class_name`` keyword when you create.
-For the example above, your Rifle.gd would look like this:
+For the example above, your rifle.gd would look like this:
 
 ::
 
@@ -235,7 +235,7 @@ You can also use your own nodes as return types:
 
 ::
 
-    # Inventory.gd
+    # inventory.gd
 
     # Adds an item to the inventory and returns it.
     func add(reference: Item, amount: int) -> Item:
@@ -316,7 +316,7 @@ a ``body_entered`` signal in a dynamic style:
 
 ::
 
-    func _on_Area2D_body_entered(body):
+    func _on_area_2d_body_entered(body):
         pass
 
 And the same callback, with type hints:

tutorials/scripting/groups.rst

@@ -98,7 +98,7 @@ enemies that the player was spotted.
 .. tabs::
  .. code-tab:: gdscript GDScript
 
-    func _on_Player_spotted():
+    func _on_player_spotted():
         get_tree().call_group("guards", "enter_alert_mode")
 
  .. code-tab:: csharp

tutorials/scripting/instancing_with_signals.rst

@@ -94,7 +94,7 @@ Here is the code for the player using signals to emit the bullet:
 
     signal shoot(bullet, direction, location)
 
-    var Bullet = preload("res://Bullet.tscn")
+    var Bullet = preload("res://bullet.tscn")
 
     func _input(event):
         if event is InputEventMouseButton:
@@ -113,7 +113,7 @@ Here is the code for the player using signals to emit the bullet:
         [Signal]
         delegate void ShootEventHandler(PackedScene bullet, Vector2 direction, Vector2 location);
 
-        private PackedScene _bullet = GD.Load<PackedScene>("res://Bullet.tscn");
+        private PackedScene _bullet = GD.Load<PackedScene>("res://bullet.tscn");
 
         public override void _Input(InputEvent @event)
         {
@@ -138,7 +138,7 @@ In the main scene, we then connect the player's signal (it will appear in the
 .. tabs::
  .. code-tab:: gdscript GDScript
 
-    func _on_Player_shoot(Bullet, direction, location):
+    func _on_player_shoot(Bullet, direction, location):
         var spawned_bullet = Bullet.instantiate()
         add_child(spawned_bullet)
         spawned_bullet.rotation = direction
@@ -147,7 +147,7 @@ In the main scene, we then connect the player's signal (it will appear in the
 
  .. code-tab:: csharp
 
-    public void _on_Player_Shoot(PackedScene bullet, Vector2 direction, Vector2 location)
+    public void OnPlayerShoot(PackedScene bullet, Vector2 direction, Vector2 location)
     {
         var bulletInstance = (Bullet)bullet.Instantiate();
         AddChild(bulletInstance);

tutorials/scripting/nodes_and_scene_instances.rst

@@ -188,7 +188,7 @@ steps:
 .. tabs::
  .. code-tab:: gdscript GDScript
 
-    var scene = load("res://MyScene.tscn")
+    var scene = load("res://my_scene.tscn")
 
  .. code-tab:: csharp
 
@@ -201,7 +201,7 @@ only available with GDScript.
 .. tabs::
  .. code-tab:: gdscript GDScript
 
-    var scene = preload("res://MyScene.tscn")
+    var scene = preload("res://my_scene.tscn")
 
 At that point, ``scene`` is a packed scene resource, not a node. To create the
 actual node, you need to call :ref:`PackedScene.instantiate()

tutorials/scripting/singletons_autoload.rst

@@ -123,10 +123,10 @@ To begin, download the template from here:
 `singleton_autoload_starter.zip <https://github.com/godotengine/godot-docs-project-starters/releases/download/latest-4.x/singleton_autoload_starter.zip>`_
 and open it in Godot.
 
-The project contains two scenes: ``Scene1.tscn`` and ``Scene2.tscn``. Each
+The project contains two scenes: ``scene_1.tscn`` and ``scene_2.tscn``. Each
 scene contains a label displaying the scene name and a button with its
 ``pressed()`` signal connected. When you run the project, it starts in
-``Scene1.tscn``. However, pressing the button does nothing.
+``scene_1.tscn``. However, pressing the button does nothing.
 
 Creating the script
 ~~~~~~~~~~~~~~~~~~~~~
@@ -257,8 +257,8 @@ Finally, we need to fill the empty callback functions in the two scenes:
 
     # Add to 'Scene1.gd'.
 
-    func _on_Button_pressed():
+    func _on_button_pressed():
-        Global.goto_scene("res://Scene2.tscn")
+        Global.goto_scene("res://scene_2.tscn")
 
  .. code-tab:: csharp
 
@@ -267,7 +267,7 @@ Finally, we need to fill the empty callback functions in the two scenes:
     public void OnButtonPressed()
     {
         var global = GetNode<Global>("/root/Global");
-        global.GotoScene("res://Scene2.tscn");
+        global.GotoScene("res://scene_2.tscn");
     }
 
 and
@@ -277,8 +277,8 @@ and
 
     # Add to 'Scene2.gd'.
 
-    func _on_Button_pressed():
+    func _on_button_pressed():
-        Global.goto_scene("res://Scene1.tscn")
+        Global.goto_scene("res://scene_1.tscn")
 
  .. code-tab:: csharp
 
@@ -287,7 +287,7 @@ and
     public void OnButtonPressed()
     {
         var global = GetNode<Global>("/root/Global");
-        global.GotoScene("res://Scene1.tscn");
+        global.GotoScene("res://scene_1.tscn");
     }
 
 Run the project and test that you can switch between scenes by pressing