• Use the slider to change the speed of the boids
• Boids bounce off each other
• Boids bounce off obstacles
• Boids change colors when bounce to other boids, obstacles, and boarders
• Some flocking behavior: alignment and mouse attraction (Currently, boids might cluster to the bottom at the end, will fix later)

As I allow the boids still be able to bounce off each other when flocking, the effect of flockinig would be clear when the velocity is lower or there are less boids