int shade=0, ndot=0, nline=0, x1=0, cx1=0, cx2=0, x2=0, y1=0, cy1=0, cy2=0, y2=0;
float n=0,  x=0, y=0, slength=0, sheight=0, bigc=0;
float[] contour = new float[4];

void setup(){
  smooth();
  size(780, 400);
  background(255, 255, 255);
  frameRate(.5);
}
void draw(){


  fill(255, 255, 255, 160);
  noStroke();
  rect(0, 0, width, height);

  //bigc=random(width/2, width*4);
  //noStroke();
  fill(255, 128, 0, 255);
  //ellipse(random(-width, width*2), random(-height, height*2), bigc, bigc);

  noFill();
  stroke(0, 0, 0, 150);
  for(int i=0; i<4; i++){
    contour[i] = noise(((frameCount*4)+i)*.3)*height;
    // println(contour[i]);
  }
  strokeWeight(10);
  bezier(-12, contour[0], 260+random(-260, 260), contour[1], 520+random(-260, 260), contour[2], width+12, contour[3]);

  noStroke();
  ndot=int(random(0,5));
  for(int k=0; k<ndot; k++){
    n=random(2, 30);
    x=random(0, width);
    y=random(contour[2],height);
    fill(0, 0, 0, random(30, 255));
    ellipse(x, y, n, n);
  }
  noFill();
  nline=int(random(0,7));  
  slength=width/random(2, 20);
  sheight=(width-contour[0])/25;
for(int l=0; l<nline; l++){
    stroke(0, 0, 0, random(30, 255));
    slength=width/random(4, 30);
    x1=int(random(-200,width));
    cx1=x1+int(random(0, slength));
    cx2=cx1+int(random(0, slength));  
    x2=cx2+int(random(0, slength));
    y1=int(contour[3])+int(random(0,300));
    cy1=y1+int(random(-sheight, sheight));
    cy2=cy1+int(random(-sheight, sheight));  
    y2=y1+int(random(-sheight, sheight));
    strokeWeight(random(.2,5));
    bezier(x1, y1, cx1, cy1, cx2, cy2, x2, y2); 
  }
}