int x1 = 0;
int y1 = 0;

int x2 = 0;
int y2 = 0;

int xspeed1 = 3;
int yspeed1 = 4;

int xspeed2 = 4;
int yspeed2 = 3;

int size = 50;
float distance = 0.0;

void setup() {
 size(640, 480);

x1 = int(random(width));
x2 = int(random(width));

y1 = int(random(height));
y2 = int(random(height));

xspeed1 = int(random(10)+1);
yspeed1 = int(random(10)+1);

xspeed2 = int(random(10)+1);
yspeed2 = int(random(10)+1);

}

void draw() {

  background(0);
  stroke(0);
  fill(255, 255, 0);
 
 
  distance = dist(x1, y1, x2, y2);
  println(distance);
 
  if(distance < size){
    fill(random(255), random(255), random(255));
  }
 
  if(frameCount % 20 < 10) {
   arc(x1, y1, size, size, 0.52, 5.76);
  } else {
   arc(x1, y1, size, size, 0.1, 6.18);
  }

  if(frameCount % 20 < 10) {
   arc(x2, y2, size, size, 0.52, 5.76);
  } else {
   arc(x2, y2, size, size, 0.1, 6.18);
  }

  x1 = x1 + xspeed1;
  y1 = y1 + yspeed1;

  x2 = x2 + xspeed2;
  y2 = y2 + yspeed2;
 
   if(x1 < 0 || x1 > 640) {
   xspeed1 = -xspeed1;
  }

  if(y1 < 0 || y1 > 480) {
   yspeed1 = -yspeed1;
   }

  if(x2 < 0 || x2 > 640) {
   xspeed2 = -xspeed2;
   }

  if(y2 < 0 || y2 > 480) {
   yspeed2 = -yspeed2;
   }
   
}

void mousePressed(){
x1 = int(random(width));
x2 = int(random(width));

y1 = int(random(height));
y2 = int(random(height));

xspeed1 = int(random(10)+1);
yspeed1 = int(random(10)+1);

xspeed2 = int(random(10)+1);
yspeed2 = int(random(10)+1);
}