Bouncing Circles

//Variable Declarations

int arraySize = 0;

Circle[] circles;

int fillCounter = 0;

float circleSize = 1;

float circleSpeed = 5;

​

void setup() 

{

  size(1000, 1000); 

  background(0); 

  circles = new Circle[arraySize];

  noStroke();

} 

​

void draw() 

{

  background(0);

  //update circle size if mouse is down

  if (mousePressed)

  {

    if (circleSize < 200)

    {

      circleSize++;

    }

  }

  //cursor

  ellipse(mouseX, mouseY, circleSize,circleSize);

  //Update circles

  for (int i = 0; i < arraySize; i++)

  {

    circles[i].draw();

    circles[i].move()

  circles[i].checkCollision(0,width,0,height);

  }

}

​

​

​

void mouseClicked()

{

  //Spawn circles

  //create 4 new circles

  Circle circle1 = new Circle (mouseX, mouseY, circleSize, random(circleSpeed), random(circleSpeed));

  Circle circle2 = new Circle (mouseX, mouseY, circleSize, -random(circleSpeed), random(circleSpeed));

  Circle circle3 = new Circle (mouseX, mouseY, circleSize, random(circleSpeed), -random(circleSpeed));

  Circle circle4 = new Circle (mouseX, mouseY, circleSize, -random(circleSpeed), -random(circleSpeed));

  //set new circle colors

  circle1.setColor (random(255),random(255),random(255),75);

  circle2.setColor (random(255),random(255),random(255),75);

  circle3.setColor (random(255),random(255),random(255),75);

  circle4.setColor (random(255),random(255),random(255),75);

  //add new circles to the array of all circles

  circles = append(circles, circle1);

  circles = append(circles, circle2);

  circles = append(circles, circle3);

  circles = append(circles, circle4);

  arraySize+=4;

  //reset circle size

  circleSize = 1;

}