let sunY = 50; // Initial position of the sun

​

function setup() {

  createCanvas(800, 400);

  noStroke();

​

  // Create stars

  for (let i = 0; i < 100; i++) {

    stars.push({

      x: random(width),

      y: random(height),

      size: random(1, 10),

    });

  }

}

​

function draw() {

  if (mouseIsPressed) { // Check if mouse is pressed

    background(255); // Bright background

    sunY -= 1; // Move sun up

  } else {

    background(0); // Night sky

  }

​

  // Draw sun

  fill(250, 250, 0); // Yellow color

  circle(50, sunY, 70);

​

  // Draw stars

  fill(255);

  for (let i = 0; i < stars.length; i++) {

    ellipse(stars[i].x, stars[i].y, stars[i].size, stars[i].size);

  }

​

  // Draw cityscape buildings

  fill(100); // Building color

  for (let x = 50; x < width; x += 100) {

    let buildingHeight = random(100, 300);

    rect(x, height - buildingHeight, 80, buildingHeight);

    // Windows in buildings

    for (let y = height - buildingHeight + 20; y < height - 20; y += 40) {

      for (let i = x + 10; i < x + 80; i += 20) {

        fill(random(0, 200), random(0, 200), 0); // Random yellowish lights

        rect(i, y, 10, 10);

      }

    }

  }

}