here is my code and how do i bounce the pulse of array of the canvas. Also how can i make this draw inifinite forever and ever.
// ----------------------------------------------------------------------
// CUSTOM CLASSES
// ----------------------------------------------------------------------

//Pulse is a class that draws a pulsing dot on the screen
class Pulse {
  /* properties */
  int SCALE = 50;
  int x;    // x-coordinate of the pulse
  int y;    // y-coordinate of the pulse
  float s;  // size of the pulse
  color myColor = color(255,255,255); //default color

  /* methods */
  // constructor 1
  public Pulse(int pulseX, int pulseY) {
    x = pulseX;
    y = pulseY;
    s = 5;
  }

  // constructor 2
  public Pulse(int pulseX, int pulseY, int pulseScale) {
    x = pulseX;
    y = pulseY;
    SCALE = pulseScale;
    s = 0;
  }

  // constructor 3
  public Pulse() {
    x = 0;
    y = 0;
    s = 0;
  }
 
  // constructor 4
  public Pulse(int pulseX, int pulseY, int pulseScale, color newColor) {
    x = pulseX;
    y = pulseY;
    SCALE = pulseScale;
    s = 0;
    myColor = newColor;
  }

  // moves the pulse to the given position
  void move(int newX, int newY) {
    x = newX;
    y = newY;
  }

  // draws the pulse and updates its size
  void display() {
    fill(myColor);
    stroke(0);
    ellipse(x, y, sin(s)*SCALE, sin(s)*SCALE);
    s += 0.1;
  }
}

// ----------------------------------------------------------------------
// GLOBAL VARIABLES
// ----------------------------------------------------------------------

int numPulses = 550;
//counter tracking how many pulse objects have been istantiated
int pulseArrayCounter = 0;
//create of any array type pulse pulse array with 1000 elements
Pulse[] pulseArray = new Pulse[numPulses];

//int pulseGap = 50;

// ----------------------------------------------------------------------
// BUILT-IN FUNCTIONS
// ----------------------------------------------------------------------
void setup() {
  size(800, 800);
  smooth();
  color tempColor = color(random(255), random(255), random(255));
}

void draw() {
  background(0);

  // draw the pulse
  for (int index = 0; index < pulseArrayCounter; index++) {
    pulseArray[index].display();
  }
}

void mouseDragged() {

  color tempColor = color(random(255), random(255), random(255));
  int newScale = int(random(100));

  // initialize a new pulse object
//  pulseArray[pulseArrayCounter] = new Pulse(mouseX, mouseY, newScale, tempColor);
//  pulseArrayCounter++;
  if (pulseArrayCounter < pulseArray.length) {
    pulseArray[pulseArrayCounter] = new Pulse(mouseX, mouseY, newScale, tempColor);
    pulseArrayCounter++;
  }
}