76

int MAX = 40;
int[]xspeed = new int[MAX];
int[]yspeed = new int[MAX];
int[]x = new int[MAX];
int[]y = new int[MAX];
int[]r = new int[MAX];

void setup(){
size(300,300);
frameRate(30);
smooth();
noStroke();

for(int i = 0; i < MAX; i++){
xspeed[i] = int(random(-4,4));
yspeed[i] = int(random(-4,4));
x[i] = int(random(width));
y[i] = int(random(height));
r[i] = int(random(10,60));

}
}

void draw(){
background(32);
for(int i =0; i < MAX; i++){
fill(x[i],y[i],r[i]);
ellipse(x[i],y[i],r[i],r[i]);
x[i] = x[i] + xspeed[i];
y[i] = y[i] + yspeed[i];
if((x[i] > width)||(x[i]<0)){
xspeed[i]=xspeed[i]*-1;
}
if((y[i]>height)||(y[i]<0)){
yspeed[i] = yspeed[i]*-1;
}
}
}

void mousePressed(){
save("76.jpg");
}