Coding a Physics Engine | Cocoa Engine Devlog #7 @GamesWithGabe
Coding a Physics Engine | Cocoa Engine Devlog #7  @GamesWithGabe
Uploaded May 2020 | Updated September 2026, 3 weeks ago
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In this devlog, I go over the process of me starting to create a physics engine. My engine is loosely based on Ian Millington's Game Engine Physics Development book, but it is likely to diverge farther from that in the near future. In this video I got collision detection, collision resolution, and linear impulse resolution working. The angular impulse resolution still needs some work to be more accurate, but it is almost there. This is part of my dungeon crawler devlogs, and is currently coded in Java using LWJGL3.

Source Code: github.com/ambrosiogabe/Cocoa

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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

Outro Music: bensound.com/royalty-free-music
Coding a Physics Engine | Cocoa Engine Devlog #7Font Rendering | Coding a 2D Game Engine in Java #41Setting up the Window with LWJGL | Coding a 2D Game Engine in Java #1References | C++ For Java Devs Ep. 10Drag N Drop Level Editor | Coding a 2D Game Engine in Java #23Even More Bug Fixing | Coding a 2D Game Engine in Java #44Broadphase Collision Detection | Coding Geometry Dash in Java #23Dirty Flags in Rendering | Coding a 2D Game Engine in Java #15Circle vs Shape Collision Detection | Coding a 2D Physics Engine in Java #10Converting Screen Coords to World Coords | Coding a 2D Game Engine in Java #22Structures and Namespaces  | C++ For Java Devs Ep. 7Sounds with OpenAL | Coding a 2D Game Engine in Java #46
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Coding a Physics Engine | Cocoa Engine Devlog #7

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