This piece is generated by the following code: let centerX, centerY; let rectWidth = 185; let rectHeight = 225; let speedX, speedY; let bottomRectX = 178; let bottomRectY = 265; function setup() { createCanvas(420, 420); rectMode(CENTER); noStroke(); centerX = width / 2; centerY = height / 2; speedX = random(-2, 2); speedY = random(-2, 2); } function draw() { background('#eeefee'); centerX += speedX; centerY += speedY; if (centerX - rectWidth / 2 < 0 || centerX + rectWidth / 2 > width) { speedX *= -1; } if (centerY - rectHeight / 2 < 0 || centerY + rectHeight / 2 > height) { speedY *= -1; } if (frameCount % 13 < 5) { fill('#010001'); } else { fill('#eeefee'); } rect(centerX, centerY, rectWidth, rectHeight); let smallRectWidth = 70; let smallRectHeight = 90; fill('#fec925'); rect(centerX - 42, centerY - 52, smallRectWidth, smallRectHeight); fill('#eef3fb'); rect(centerX + 42, centerY - 52, smallRectWidth, smallRectHeight); fill('#e01935'); rect(centerX + 42, centerY + 52, smallRectWidth, smallRectHeight); fill('#5648ec'); rect(centerX - 42, centerY + 52, smallRectWidth, smallRectHeight); bottomRectX += speedX; bottomRectY += speedY; if (bottomRectX - 25 < 0 || bottomRectX + 25 > width) { speedX *= -1; } if (bottomRectY - 8 < 0 || bottomRectY + 8 > height) { speedY *= -1; } fill('#01499d'); rect(bottomRectX, bottomRectY, 50, 16); }