Flock in a cloudy blue sky

Click on the image to load the canvas demo (requires FireFox or non-IE browser) I took the existing Javascript boids implementation from Coderholic, and made it look pretty with swallows on a cloudy background. The birds follow the standard 3 rules for Boids as first implemented by Craig Reynolds Separation: steer to avoid crowding local flockmates Alignment: steer towards the average heading of local flockmates Cohesion: steer to move toward the average position of local flockmates These simple rules for each individual leads to the group behavior - there is no central group intelligence or control. Flocking behaviors like this are often described as being emergent. Update: (23/9/10) There is now an initial pause as the simulation runs 500 steps before displaying the boids. This removes the ugly initial craziness before they start flocking properly.