import java.util.LinkedList;
float[]x, y, a, s;
int n=4;
float vel=0.03, velX=1;
void setup(){
 fullScreen();
 background(0);
 x=new float[n];
 y=new float[n];
 s=new float[n];
 a=new float[n];
 for(int i = 0; i < n; i++){
  s[i]=width/(8*pow(2, i));
 }
}
LinkedList<PVector>points=new LinkedList<PVector>();
LinkedList<PVector>sin1=new LinkedList<PVector>();
LinkedList<PVector>sin2=new LinkedList<PVector>();
LinkedList<PVector>sin3=new LinkedList<PVector>();
LinkedList<PVector>sin4=new LinkedList<PVector>();
void draw(){
  background(0);
  //alsó
  pushMatrix();
  translate(width/4, height*3/4);
  noFill();
  x[0]=s[0]*cos(a[0]);
  y[0]=s[0]*sin(a[0]);
  strokeWeight(2);
      stroke(255);
      ellipse(0, 0, s[0]*2, s[0]*2);
      line(0, 0, x[0], y[0]);
  for(int i = 1; i < n; i++){
    try{
      x[i]=x[i-1]+s[i]*cos(a[i]);
      y[i]=y[i-1]+s[i]*sin(a[i]);
      strokeWeight(2);
      stroke(255);
      ellipse(x[i-1], y[i-1], s[i]*2, s[i]*2);
      line(x[i-1], y[i-1], x[i], y[i]);
    }catch(Exception ex){}


  }
  for(int i = 0; i < n; i++){
   a[i]+=vel*pow(2, i);

  }
  for(int i = 0; i < points.size(); i++){
   try{
     stroke(200, 0, 0);
     strokeWeight(2);
     line(points.get(i).x, points.get(i).y, points.get(i+1).x, points.get(i+1).y);
   }catch(Exception ex){}
     points.get(i).x+=velX;
  }

  points.add(new PVector(width/4, y[n-1]));
  popMatrix();
  //felső
  pushMatrix();
  translate(width/4, height/4);
   for(int i = 0; i < n; i++){
     strokeWeight(2);
     stroke(255);
     ellipse(0, 0, s[i]*2, s[i]*2);
     try{
       line(0, 0, cos(a[i])*s[i], sin(a[i])*s[i]);
     }catch(Exception ex){}
 }

   for(int i = 0; i < sin1.size(); i++){
   try{
     stroke(0, 200, 0);
     strokeWeight(2);
     line(sin1.get(i).x, sin1.get(i).y, sin1.get(i+1).x, sin1.get(i+1).y);
   }catch(Exception ex){}
     sin1.get(i).x+=velX;
  }
  for(int i = 0; i < sin2.size(); i++){
   try{
     stroke(200, 200, 0);
     strokeWeight(2);
     line(sin2.get(i).x, sin2.get(i).y, sin2.get(i+1).x, sin2.get(i+1).y);
   }catch(Exception ex){}
     sin2.get(i).x+=velX;
  }
  for(int i = 0; i < sin3.size(); i++){
   try{
     stroke(0, 0, 200);
     strokeWeight(2);
     line(sin3.get(i).x, sin3.get(i).y, sin3.get(i+1).x, sin3.get(i+1).y);
   }catch(Exception ex){}
     sin3.get(i).x+=velX;
  }
  for(int i = 0; i < sin4.size(); i++){
   try{
     stroke(200, 0, 200);
     strokeWeight(2);
     line(sin4.get(i).x, sin4.get(i).y, sin4.get(i+1).x, sin4.get(i+1).y);
   }catch(Exception ex){}
     sin4.get(i).x+=velX;
  }

     sin1.add(new PVector(width/4, sin(a[0])*s[0]));
     sin2.add(new PVector(width/4, sin(a[1])*s[1]));
     sin3.add(new PVector(width/4, sin(a[2])*s[2]));
     sin4.add(new PVector(width/4, sin(a[3])*s[3]));
   popMatrix();
  //egyéb


  while(points.size()>500)points.removeFirst();
   while(sin1.size()>500)sin1.removeFirst();
    while(sin2.size()>500)sin2.removeFirst();
     while(sin3.size()>500)sin3.removeFirst();
      while(sin4.size()>500)sin4.removeFirst();

}