Jan Haller is a Master's student in Electrical Engineering and Information Technology. In his free time, he occasionally develops games in C++. He is also interested in the creation of graphics and 3D models.In 2008, Jan stumbled upon SFML. Since then, he has used the library for a lot of his work. One of his bigger projects was a 2D jump'n'run game, where the character has to find its way through different levels, defeating enemies and collecting various items. During the years, Jan has actively participated in the SFML community, getting a lot of insights into the development of SFML 2. He has also written a C++ library called Thor, which extends SFML with ready-to-use features like particle systems or animations.