Intro and Roadmap | Coding a 2D Physics Engine in Java #1 @GamesWithGabe
Intro and Roadmap | Coding a 2D Physics Engine in Java #1  @GamesWithGabe
Uploaded June 2020 | Updated September 2026, 2 weeks ago
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In this episode, I give a roadmap that describes the direction I will be taking this series. Specifically we will be covering these topics:

* 2D Primitive Shapes
- Points
- Lines
- Circle
- Rectangle
- Oriented Rectangle
- Point Containment (Is the point in the shape?)
- Line Intersection (Is this line intersecting the shape?)
* 2D Collisions
- Circle v Circle
- Circle v Rectangle
- Circle v Oriented Rectangle
- Rectangle v Rectangle
- SAT
- Rectangle v Oriented Rectangle
- Oriented Rectangle v Oriented Rectangle
* Spatial Partitioning
- QuadTree
- Possibly Bounding Volume Heirarchy?
* Raycasting
- Raycast v Circle
- Raycast v Rectangle
- Raycast v Oriented Rectangle
* Force Generators
- Gravity
- Spring force
* Constraint Solving
- Simple Physics System
- Simple Particle System
- Verlet Integration
* Manifolds and Impulses
- Manifold for rectangles
- Manifold for circles
- Linear velocity
- Linear impulse
- Angular velocity
- Angular impulse

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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
Intro and Roadmap | Coding a 2D Physics Engine in Java #1Drawing the First Square | Coding a 2D Game Engine in Java #5The Command Pattern: Coding Undo/Redo | Game Engine Concepts #3Scene Panel Drag & Drop (ImGui) | Coding a 2D Game Engine in Java #43Pointers in 16 Minutes | C++ For Java Devs Ep. 8Linking and Header Files  | C++ For Java Devs Ep. 3Maintenance | Coding Geometry Dash in Java #10How to Use Box2D Physics | Coding a 2D Game Engine in Java #48Switching Languages | Cocoa Engine Devlog #2How Shaders Work (in OpenGL) | How to Code Minecraft Ep. 3Translate and Scale Gizmo | Coding a 2D Game Engine in Java #35Moving the Snake | Java Snake Part 6
GamesWithGabe |

Intro and Roadmap | Coding a 2D Physics Engine in Java #1

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