var xPos = 200; var yPos = 0; var circleSize = 30; var speed = 22; var draw = function() { background(0, 0, 125); fill(60, 0, 0); ellipse(200, 399, 300, 300); fill(0); ellipse(xPos, yPos, circleSize, circleSize); yPos += speed; if(yPos > 430) { yPos = -30; } };