# Scala in the City - January, 2020

Organizer link - <https://www.signifytechnology.com/blog/2020/01/kick-starting-2020-with-a-spectacular-scala-in-the-city>

## Functional Game Programming

* Indigo is a soon-to-be-released purely functional game engine, that aims to make creating 2D indie games approachable and fun for Scala / Scala.js programmers.
* One of the goals of Indigo is to challenge the conventional wisdom that testing and reasoning about games is unavoidably difficult due to their non-deterministic nature.
* In this short talk we will cover some of the concepts behind the engine, the problems it aims to solve, and show you what a simple game project looks like.
* [David Smith](https://www.linkedin.com/in/davidjamessmith)

7.10pm: Wiem Zine Elabidine @WiemZin, Scala Backend Developer @ MOIA

## ZIO In Real World

* Purely functional libraries like ZIO can help you build high-performance, concurrent applications that don’t have deadlocks, don’t leak resources and can solve complex problems using purely functional code.
* In this talk, Wiem will walk you through how to build a control system for the elevators at a fictional hotel, H\&A Hotel. You’ll learn how to use basic control structures like Ref, Queue, STM and ZIO to build real-world software.
* <https://github.com/wi101/elevator-system>
* Emphasis on total functional programming reminded me of this paper by David Turner (of \[Miranda]\(<https://en.wikipedia.org/wiki/Miranda_(programming_language>)) fame) - [Total Functional Programming](http://www.jucs.org/jucs_10_7/total_functional_programming/jucs_10_07_0751_0768_turner.pdf)