Defender is an old video game. In this game, a player controls a spaceship to save humanoids from aliens on his planet. Aliens can both capture humanoids and destroy the player’s spaceship. Therefore, ...

A simple 2D physics engine for circle objects. This is my attempt to write a physics engine in java in 2020. This physics engine is not fully polished. I created this project for fun and ...

Incremental 2D-LDA formulates object tracking as online classification between foreground and background. It updates the row- or/and column-projected matrix efficiently. Based on the current object ...