The starting points of the dots are random. The radius of each dot depends upon whether they call it water ice or Italian ice (water=50, Italian=100). The vertical speed of each dot depends on whether they call it plain pizza or cheese pizza (plain=1, cheese=5). The RGB values vary for each dot: R=255-students[i].country, G=255-students[i].state, B=255/students[i].year*2