squiggle[] s = new squiggle[20];
float[] sx = new float[20];
float[] sy = new float[20];

void setup(){
  size(1200,600);
  smooth();
  for(int i = 0; i < s.length; i++){
    s[i] = new squiggle();
    s[i].x = random(width);
    s[i].y = random(height);
    s[i].rad = random(0,2*PI);
  }
  background(255);
}


void draw(){
  //background(255);
  stroke(0,20);
  for(int i = 0; i < s.length; i++){
    sx[i] = s[i].x;
    sy[i] = s[i].y;
  }
  float max_x = max(sx);
  float max_y = max(sy);
  float min_x = min(sx);
  float min_y = min(sy);
  for(int i = 0; i < s.length; i++){
    s[i].forward(1);
    line(map(s[i].x, min_x, max_x, 0,width), map(s[i].y, min_y, max_y, 0,height),cos(s[i].rad) * 1 + s[i].x, sin(s[i].rad) * 1 + s[i].y);
    s[i].rad += random(-.25,.25);
    //ellipse(s[i].x,s[i].y, 5,5);
  }
  if(mousePressed) {
    for(int i = 0; i < s.length; i++){
      background(255);
      s[i].x = width/2;
      s[i].y = height/2;
      s[i].rad = random(0,2*PI);
    }
  } 
}

class squiggle{
 float rad;
 float x,y;
 void forward(float l){
   
   //line(x,y,cos(rad) * l + x, sin(rad) * l + y);
   x = cos(rad) * l + x;
   y = sin(rad) * l + y;   
 }
}