update c# class examples

Author: Piralein

getting_started/first_2d_game/03.coding_the_player.rst

@@ -36,7 +36,6 @@ Start by declaring the member variables this object will need:
  .. code-tab:: csharp
 
     using Godot;
-    using System;
 
     public partial class Player : Area2D
     {

getting_started/first_2d_game/04.creating_the_enemy.rst

@@ -65,7 +65,9 @@ Add a script to the ``Mob`` like this:
 
  .. code-tab:: csharp
 
-    public class Mob : RigidBody2D
+    using Godot;
+
+    public partial class Mob : RigidBody2D
     {
         // Don't forget to rebuild the project.
     }

getting_started/first_2d_game/06.heads_up_display.rst

@@ -107,7 +107,9 @@ Now add this script to ``HUD``:
 
  .. code-tab:: csharp
 
-    public class HUD : CanvasLayer
+    using Godot;
+
+    public partial class HUD : CanvasLayer
     {
         // Don't forget to rebuild the project so the editor knows about the new signal.
 

getting_started/step_by_step/signals.rst

@@ -208,7 +208,7 @@ Your complete ``Sprite2D.gd`` code should look like the following.
 
     using Godot;
 
-    public class Sprite : Godot.Sprite2D
+    public partial class Sprite : Sprite2D
     {
         private float Speed = 400;
         private float AngularSpeed = Mathf.Pi;
@@ -370,7 +370,7 @@ Here is the complete ``Sprite2D.gd`` file for reference.
 
     using Godot;
 
-    public class Sprite : Godot.Sprite2D
+    public partial class Sprite : Sprite2D
     {
         private float Speed = 400;
         private float AngularSpeed = Mathf.Pi;
@@ -423,7 +423,7 @@ reaches 0.
 
     using Godot;
 
-    public class CustomSignal : Node2D
+    public partial class CustomSignal : Node2D
     {
         [Signal]
         public delegate void HealthDepletedEventHandler();
@@ -477,7 +477,7 @@ names between parentheses:
 
     using Godot;
 
-    public class CustomSignal : Node
+    public partial class CustomSignal : Node
     {
         [Signal]
         public delegate void HealthChangedEventHandler(int oldValue, int newValue);

tutorials/2d/2d_movement.rst

@@ -56,7 +56,6 @@ Add a script to the character body and add the following code:
  .. code-tab:: csharp
 
     using Godot;
-    using System;
 
     public partial class Movement : CharacterBody2D
     {
@@ -123,7 +122,6 @@ while up/down moves it forward or backward in whatever direction it's facing.
  .. code-tab:: csharp
 
     using Godot;
-    using System;
 
     public partial class Movement : CharacterBody2D
     {
@@ -182,7 +180,6 @@ is set by the mouse position instead of the keyboard. The character will always
  .. code-tab:: csharp
 
     using Godot;
-    using System;
 
     public partial class Movement : CharacterBody2D
     {
@@ -246,7 +243,6 @@ on the screen will cause the player to move to the target location.
  .. code-tab:: csharp
 
     using Godot;
-    using System;
 
     public partial class Movement : CharacterBody2D
     {

tutorials/2d/2d_sprite_animation.rst

@@ -88,7 +88,9 @@ released.
 
  .. code-tab:: csharp
 
-    public class Character : CharacterBody2D
+    using Godot;
+
+    public partial class Character : CharacterBody2D
     {
         private AnimatedSprite2D _animatedSprite;
 
@@ -227,7 +229,9 @@ released.
 
  .. code-tab:: csharp
 
-    public class Character : CharacterBody2D
+    using Godot;
+
+    public partial class Character : CharacterBody2D
     {
         private AnimationPlayer _animationPlayer;
 

tutorials/2d/custom_drawing_in_2d.rst

@@ -82,7 +82,9 @@ redrawn if modified:
 
  .. code-tab:: csharp
 
-    public class CustomNode2D : Node2D
+    using Godot;
+
+    public partial class CustomNode2D : Node2D
     {
         private Texture _texture;
         public Texture Texture
@@ -122,7 +124,9 @@ call ``queue_redraw()`` from the ``_process()`` callback, like this:
 
  .. code-tab:: csharp
 
-    public class CustomNode2D : Node2D
+    using Godot;
+
+    public partial class CustomNode2D : Node2D
     {
         public override void _Draw()
         {
@@ -326,7 +330,9 @@ using ``get_node()``.
 
  .. code-tab:: csharp
 
-    public class CustomNode2D : Node2D
+    using Godot;
+
+    public partial class CustomNode2D : Node2D
     {
         private float _rotationAngle = 50;
         private float _angleFrom = 75;

tutorials/best_practices/data_preferences.rst

@@ -248,8 +248,10 @@ tree structures.
 
   .. code-tab:: csharp
 
+    using Godot;
+
     // Can decide whether to expose getters/setters for properties later
-    public class TreeNode : Object
+    public partial class TreeNode : Object
     {
         private TreeNode _parent = null;
 

tutorials/best_practices/godot_interfaces.rst

@@ -481,7 +481,9 @@ accesses:
   .. code-tab:: csharp
 
     // Child.cs
-    public class Child : Node
+    using Godot;
+
+    public partial class Child : Node
     {
         public FuncRef FN = null;
 
@@ -493,7 +495,9 @@ accesses:
     }
 
     // Parent.cs
-    public class Parent : Node
+    using Godot;
+
+    public partial class Parent : Node
     {
         public Node Child;
 

tutorials/best_practices/godot_notifications.rst

@@ -113,7 +113,9 @@ deltatime methods as needed.
 
   .. code-tab:: csharp
 
-    public class MyNode : Node
+    using Godot;
+
+    public partial class MyNode : Node
     {
 
         // Called every frame, even when the engine detects no input.
@@ -171,7 +173,9 @@ instantiation:
 
   .. code-tab:: csharp
 
-    public class MyNode : Node
+    using Godot;
+
+    public partial class MyNode : Node
     {
         private string _test = "one";
 
@@ -255,7 +259,9 @@ nodes that one might create at runtime.
 
   .. code-tab:: csharp
 
-    public class MyNode : Node
+    using Godot;
+
+    public partial class MyNode : Node
     {
         public Node ParentCache = null;