So basically I want a ball that bounces around, but when the mouse is on top, I want the ball to become bigger. The 2 codes are bellow, how can I put them together? Thanks for any advise

Code for ball becoming bigger.

void setup() {
size(400,400);
smooth();
}
void draw() {
background(0);
float d = dist(width/2, height/2, mouseX, mouseY);
ellipse(width/2, height/2, d*2, d*2);
}


Code for ball bouncing

int x = 300;
int y = 300;
int xspeed = -3;
int yspeed = -3;
void setup(){
 size(600,400);
 
}

void draw(){
 background(0); 
 ellipse(x, y, 20, 30); 
 x = x + xspeed;
 if ( x == 0){ 
 xspeed = 3; 
 }
 if ( x > width){
 xspeed = -3;
 
 }
 y = y + yspeed;
 if ( y < 0){
 yspeed = 3;
 }
 if ( y > height){
 yspeed = -3;
 
 }
}