# Writing

> Articles and notes by Luis Padron.

Author: [Luis Padron](https://thoughtsonthings.io/about/)

Canonical URL: https://thoughtsonthings.io/writing/

- [Building a retro gaming handheld](https://thoughtsonthings.io/writing/building-a-retro-handheld/): Putting together a Null 2, a DIY retro handheld built around a Raspberry Pi Zero 2 W.
- [Behavior trees](https://thoughtsonthings.io/writing/behavior-trees/): My notes on behavior trees: task switching, ticks, and how the different node types work.
- [How isometric coordinates work in 2D games](https://thoughtsonthings.io/writing/isometric-coordinates/): Working through the math for converting tile coordinates to screen coordinates in a 2D isometric game.