2D Animations | Coding a 2D Game Engine in Java #45 @GamesWithGabe
2D Animations | Coding a 2D Game Engine in Java #45  @GamesWithGabe
Uploaded May 2021 | Updated September 2026, 2 weeks ago
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In this episode I go over how to implement a simple state machine based animator. This allows us to create different prefabricated game objects with state machines attached to them, and we can flip through multiple animations based on different triggers. I also go over a couple more bug fixes.

0:00 Intro
0:30 Visual Explanation
3:28 Coding Animation State
8:37 Coding State Machine
19:41 Adding Prefabs with Animations
23:36 Adding a State Machine to Mario
27:07 Fixing Texture Refresh Bug

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Website: ambrosiogabe.github.io
Github: github.com/ambrosiogabe

Here are some books I recommend if you want to learn about game engine development more thoroughly. I do not profit off any of these sales, these are just some books that have helped me out :)

My Recommended Game Engine Books:
Game Engine Architecture: gameenginebook.com
Game Physics Cookbook (Read this before the next physics book): amazon.com/Game-Physics-Cookbook-Gabor-Szauer/dp/1787123669
Game Physics (Ian Millington): amazon.com/Game-Physics-Engine-Development-Commercial-Grade/dp/0123819768
Game Programming Patterns (Free): gameprogrammingpatterns.com

My Recommended Beginning Game Programming Books:
JavaScript Game Design: apress.com/gp/book/9781430247166

My Recommended Java Books:
Data Structures/Algorithms: amazon.com/Data-Structures-Algorithms-Java-6th-ebook/dp/B00JDRQF8C
LWJGL (Free, but I haven't read this thoroughly): lwjglgamedev.gitbooks.io/3d-game-development-with-lwjgl/content
2D Animations | Coding a 2D Game Engine in Java #45Point vs. Primitives | Coding a 2D Physics Engine in Java #4Z-Index Rendering | Coding Geometry Dash in Java #20Iterative Linear Impulse Resolution | Coding a 2D Physics Engine in Java #15ImGui in LWJGL (UPDATE) | LWJGL Series #3Coding Gravity | Coding Geometry Dash in Java #9Deserialization Part 1 | Coding Geometry Dash in Java #15Generating Font SDFs (Signed Distance Fields) | Font Rendering in Java #4Serialization with Gson | Coding a 2D Game Engine in Java #19Starting Engine & Debug Lines | Cocoa Engine Devlog #6Physics and Stuff | Cocoa Engine Devlog #4Unit tests and Line vs Circle | Coding a 2D Physics Engine in Java #6
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2D Animations | Coding a 2D Game Engine in Java #45

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