let amplitude = 100;     // Amplitude of the motion

let frequency = 1;       // Frequency of the sine wave

let phaseOffset = 0;     // Phase offset of the sine wave

​

function setup() {

  createCanvas(400, 400);

}

​

function draw() {

  background(220);

  // Calculate the vertical position based on harmonic motion

  let y = height / 2 + amplitude * sin(TWO_PI * frequency * frameCount / 60 + phaseOffset);

   // Draw a line from the center to the circle's position

  stroke(0);

  line(width / 2, height / 2, width / 2, y);

​

  // Draw an oscillating object

  drawOscillatingObject(y);

​

  // Increment the angle to simulate motion

  angle += 0.02;

}

​

function drawOscillatingObject(y) {

  // draw a circle at y-coordinate

  fill(0);

  ellipse(width / 2, y, 20, 20); // map the y-coordinate

}

​