39

int i = 45;
int j = 225;
float pos1 = 0;
float pos2 = 0;
float pos3 = 0;
float pos4 = 0;
int sc = 40;

void setup(){
size(200,200);
noStroke();
smooth();
}

void draw(){
background(0);
fill(51);
rect(60,60,80,80);

fill(255);
ellipse(pos1,36,32,32);

fill(153);
ellipse(36,pos2,32,32);

fill(255);
ellipse(pos3,164,32,32);

fill(153);
ellipse(164,pos4,32,32);

i += 3;
j -= 3;

if(i > 405){
i = 45;
j = 225;
}

float ang1 = radians(i);
float ang2 = radians(j);
pos1 = width/2 +(sc * cos(ang1));
pos2 = width/2 +(sc * sin(ang1));
pos3 = width/2 +(sc *cos(ang2));
pos4 = width/2 +(sc * sin(ang2));
}