I_did_it!!!!!!!!!!!!!!!

int  numBall=200;

int value;

float [] ballX= new float [numBall];

float [] ballY= new float [numBall];

float [] speedX= new float[numBall];

float [] speedY= new float [numBall];

​

void setup() {

  size(500, 500);

  background (200);

​

  for (int i=0; i< numBall; i++) {

    ballX[i] = random(100, width + 10); 

    ballY[i] = random(100, height + 10);

    speedX[i] = random(1, 10);

    speedY[i] = random(-10, 20);

    value = 250;

  }

}

​

void draw() {

  background(0);

  smooth();

  for (int i = 0; i < numBall; i++) {

    fill(250, value, 0);

    ellipse(ballX[i], ballY[i], 10, 10);

​

    if (ballX[i] > width || ballX[i] < 0) {

​

      speedX[i] =  speedX[i] * (-1);

    }

​

    if (ballY[i] > height || ballY[i] < 0 ) {

​

      speedY[i] = speedY[i] * (-1);

    }

​

    ballX[i]= ballX[i] + speedX[i];

    ballY[i]= ballY[i] + speedY[i];

  }

}

​

void mousePressed() {

  if (value == 200) {

    value = 0;

  } 

  else {

    value = 200;

  }

}