Fun with processing

Always amazing to see what sort of playful and visually attractive experience you can spark with just a few lines of code! Starting a series here titled “Fun With Arrays” in Processing.

The code:

int num = 150;
int[] x = new int[num];
int[] y = new int[num];

void setup() {
  size(600, 400);
  noStroke();
  fill(255, 102);
}

void draw() {
  background(0);
  // Shift the values to the right
  for (int i = num-1; i > 0; i--) {
    x[i] = x[i-1];
    y[i] = y[i-1];
  }
  // Add the new values to the beginning of the array
  x[0] = mouseX;
  y[0] = mouseY;
  // Draw the circles
  for (int i = 0; i < num; i++) {
    ellipse(x[i], y[i], i/2.0, i/2.0);
  }
}