Simple Swinging Power Lines and Ropes in Unity

I wanted to create dynamic power lines for a game that I’ve been working on in Unity for the last few weeks. I couldn’t find a solution that satisfied my requirements, and so I decided to implement a custom solution, which I wanted to share with you.

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How to program an arcball (orbiting) camera in Unity using spherical coordinates

A while ago, I wrote this article about a simple implementation of an Arcball camera in C++. In it, I described how that could get done without using Quaternions, spherical coordinates, or a lookAt function. Anyway, just out of curiosity, I decided to create a minimal implementation of an orbiting arcball camera in C# using spherical coordinates.

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Functional-Style Operations in Java with the Stream API

I discussed Java Lambda Expressions quite a time ago in another article. Those were not the only new thing that got implemented in Java 8. Besides Lambdas, Type-Annotations, and Default methods in interfaces, version 8 of the Java API added support for functional-style operations. Because I think that this is quite a rarely discussed feature, I decided to write this short introduction to the Java Stream API and how it can be used for basic functional-style programming in Java.

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Native real-time and multithreaded programming on the Arduino Nano 33 BLE (Mbed OS)

A long time ago, I released a series about real-time programming on a BeagleBone Black. I then decided to use the BBB to control the CRT display of an old Macintosh Classic computer. As you can imagine, I was thrilled when the new Arduino Nano series with built-in real-time capabilities was announced and in this article, I’d like to revisit the old topic and discuss what has changed over the years.

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C sockets – A hello world introduction

While sockets are no new concept for me, I recently had to write an application in C that uses sockets to communicate. And while trying to figure out, what the best way of doing so is, I came across a lot of tutorials. But most of them either completely missed the point, were too complicated or used obsolete functions in the code. In this article, I want to try to give you a simple and short overview of sockets and an up to date ‘hello world’ example for a client and a server application. Continue reading C sockets – A hello world introduction

DIY electronic riddle advent calendar

Oh yes, Christmas! It’s almost that season of the year again. And to shorten the time between the 1st of December and Christmas Eve’, I thought about a bit more interesting advent calendar than one, that only has chocolate in it. This electronic advent calendar offers a riddle that you can create for a loved one or a friend and give it to them so they can try to solve it before Christmas arrives. It offers a clue every day and it presents all unlocked clues on a website that runs on the device itself. The only two things it needs to work is a power supply and a WiFi network it can connect to. And the best thing is: It is really simple to build and it can be re-used every year and it can also be used for other occasions (for example Valentine’s Day)! Continue reading DIY electronic riddle advent calendar