Sven's Dev Journal

Loosely Coupled Game Architecture with Events and Commands

This article introduces events and commands as a way to decouple game components. A (very) basic space shooter example illustrates how the pattern can be applied in practice.

May 10, 2025 · 11 min read

gamedev architecture csharp monogame

Framework-Independent Game Logic with Hexagonal Architecture

Implementing a classic table tennis game using MonoGame, but making it so, that the game logic is independent of the framework using Hexagonal Architecture.

Dec 30, 2024 · 14 min read

gamedev architecture csharp monogame

A* Pathfinding in 2D Games: Addendum about Cyclic Dependencies

Putting the grid navigation in its own class to avoid a cyclic dependency and to improve separation of concerns.

Dec 1, 2024 · 9 min read

gamedev pathfinding architecture csharp monogame

Shmup Devlog #5

Collisions, Part Trois

Circles and boxes fit some sprites badly. This post adds convex-hull colliders: the separating axis test, a swept test with conservative advancement and GJK, and a tool that builds the hulls from the sprites.

Oct 27, 2026 · 6 min read

gamedev shmup collision-detection

Shmup Devlog #4

Collisions, Part Deux

Fast bullets flew through enemies without hitting them. This post explains why and adds a swept collision test for every pair the simple check misses.

Sep 18, 2026 · 13 min read

gamedev shmup collision-detection

Shmup Devlog #3

Collisions

This post is about benchmarking the collision detection system, comparing the brute-force approach to a spatial hash grid approach.

Apr 26, 2026 · 7 min read

gamedev shmup collision-detection

Collider Generator

Derives convex-hull colliders from a sprite’s alpha channel, one hull per animation frame.

Oct 5, 2026 · 17 min read

tool collision geometry dotnet gamedev csharp

Fitness Tracker

Fitness Tracker is an application for tracking fitness activities. It consists of a Spring Boot backend and a Nuxt frontend.

Jan 10, 2026 · 6 min read

architecture java web