Add Chapter 08: The AnimatedSprite Class

articles/toc.yml

@@ -126,6 +126,8 @@
           href: tutorials/building_2d_games/06_optimizing_texture_rendering/
         - name: "07: The Sprite Class"
           href: tutorials/building_2d_games/07_the_sprite_class/          
+        - name: "07: The AnimatedSprite Class"
+          href: tutorials/building_2d_games/08_the_animatedsprite_class/           
 - name: Console Access
   href: console_access.md
 - name: Help and Support

articles/tutorials/building_2d_games/07_the_sprite_class/index.md

@@ -190,7 +190,7 @@ public Sprite CreateSprite(string regionName)
 }
 ```
 
-## Using the `Sprite` Class
+## Using the Sprite Class
 
 Let's adjust our game now to use the `Sprite` class instead of just the texture regions.  Replace the contents of *Game1.cs* with the following:
 

articles/tutorials/building_2d_games/08_the_animatedsprite_class/src/Game1-animatedsprite-usage.cs

@@ -0,0 +1,72 @@
+using System;
+using Microsoft.Xna.Framework;
+using Microsoft.Xna.Framework.Graphics;
+using Microsoft.Xna.Framework.Input;
+using MonoGameLibrary.Graphics;
+
+namespace MonoGameSnake;
+
+public class Game1 : Game
+{
+    private GraphicsDeviceManager _graphics;
+    private SpriteBatch _spriteBatch;
+    private AnimatedSprite _slime;
+    private AnimatedSprite _bat;
+
+    public Game1()
+    {
+        _graphics = new GraphicsDeviceManager(this);
+        Content.RootDirectory = "Content";
+        IsMouseVisible = true;
+    }
+
+    protected override void Initialize()
+    {
+        // TODO: Add your initialization logic here
+
+        base.Initialize();
+    }
+
+    protected override void LoadContent()
+    {
+        _spriteBatch = new SpriteBatch(GraphicsDevice);
+
+        // Create the texture atlas from the XML configuration file
+        TextureAtlas atlas = TextureAtlas.FromFile(Content, "images/atlas-definition.xml");
+
+        // Create the slime animated sprite
+        _slime = atlas.CreateAnimatedSprite("slime-animation");
+
+        // Create the bat animated sprite
+        _bat =  atlas.CreateAnimatedSprite("bat-animation");
+    }
+
+    protected override void Update(GameTime gameTime)
+    {
+        if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed || Keyboard.GetState().IsKeyDown(Keys.Escape))
+            Exit();
+
+        //  Update the slime and bat animated sprites
+        _slime.Update(gameTime);
+        _bat.Update(gameTime);
+
+        base.Update(gameTime);
+    }
+
+    protected override void Draw(GameTime gameTime)
+    {
+        GraphicsDevice.Clear(Color.CornflowerBlue);
+
+        _spriteBatch.Begin(samplerState: SamplerState.PointClamp);
+
+        // Draw the slime animated sprite
+        _slime.Draw(_spriteBatch, Vector2.One);
+
+        // Draw the bat animated sprite 10px to the right of the slime.
+        _bat.Draw(_spriteBatch, new Vector2(_slime.Width + 10, 0));
+
+        _spriteBatch.End();
+
+        base.Draw(gameTime);
+    }
+}

articles/tutorials/building_2d_games/index.md

@@ -28,6 +28,7 @@ This documentation will introduce game development concepts using the MonoGame f
 | [05: Working with Textures](05_working_with_textures/index.md)               | Learn how to load and render textures using the MonoGame content pipeline and [**SpriteBatch**](xref:Microsoft.Xna.Framework.Graphics.SpriteBatch). |              |
 | [06: Optimizing Texture Rendering](06_optimizing_texture_rendering/index.md) | Explore optimization techniques when rendering textures using a texture atlas.                                                                      |              |
 | [07: The Sprite Class](07_the_sprite_class/index.md)                         | Explore creating a reusable Sprite class to efficiently sprites and their rendering properties, including position, rotation, scale, and more.      |              |
+| [08: The AnimatedSprite Class](07_the_sprite_class/index.md)                 | Create an AnimatedSprite class that builds upon our Sprite class to support frame-based animations.                                                 |              |
 
 In additional to the chapter documentation, supplemental documentation is also provided to give a more in-depth look at different topics with MonoGame. These are provided through the Appendix documentation below: