I just need a sensor that can pick up a line of light.
My friend and I are creating bots that will evolve fighting tactics. They need to see in order to do this.
At the least, i need this. a device that can pick up a line of color (like a webcam, but it doesn't have to give a 2D image, just a line parallel to the horizon)
http://arduino.cc/forum/index.php/topic,81998.new.html#new
There is a cam, non-web/USB. 60 fps. To make it color selective, optical filter / colorful film could be used. I was concentrated on tracking a single dot, but it's a piece of cake to implement algorithm to extract a line from visual memory, with all attributes - length and slope, or two line in arrow beacon pattern < or >