Noise 1D

/**
 * Noise1D. 
 * 
 * Using 1D Perlin Noise to assign location. 
 */
 
float xoff = 0.0f;
float xincrement = 0.01f; 

void setup() {
    size(640, 360);
    background(0);
    noStroke();
}

void draw() {
    // Create an alpha blended background
    fill(0, 10);
    rect(0, 0, width, height);
  
    //float n = random(0, width);  // Try this line instead of noise
  
    // Get a noise value based on xoff and scale it according to the window's width
    float n = noise(xoff) * width;
  
    // With each cycle, increment xoff
    xoff += xincrement;
  
    // Draw the ellipse at the value produced by perlin noise
    fill(200);
    ellipse(n, height / 2.0f, 64, 64);
}