/*

1000_lines
Created with Processing 68 alpha on Nobember 2 , 2004
http://www.harukit.com/

*/

int dNum = 1000;
Dot[] dot = new Dot[dNum];
float ax=0;
float ay=0;
float xs=random(5,20);
float ys=random(5,20);
int xdir = 1;
int ydir =1;

void setup(){
  colorMode(HSB,255);
  size(760,500);
  background(255);
  //strokeWeight(2);
  for (int i=0;i<dNum;i++){
    dot[i]=new Dot();
  }
}

void loop(){
  ax+=xs*xdir;
  ay+=ys*ydir;
  if(ax>width+100 || ax<-100){
    xdir = -1*xdir;
    xs = random(5,20);
  }
  if(ay>height+100 || ay<-100){
    ydir = -1*ydir;
    ys = random(5,20);
  }
  for (int i=0;i<dNum;i++){
    dot[i].update();
  }

}

void mouseReleased(){
  background(255);
  xs = random(5,20);
  ys = random(5,20);
  ax = mouseX;
  ay = mouseY;
}

class Dot{
  float nx,ny,ox,oy,ypos,vx,vy,boo,gain,f,hh,bb;
  color col;
  Dot(){
    ox=0;
    oy=0;
    nx =ox;
    ny =oy;
    vx=1;
    vy=1;
    boo=3;
    gain=5;
    f=random(10);
    hh = 0;
    bb=random(0,80)+random(0,80)+random(0,80);

  }
  void update(){
    if(hh<255){
      hh+=1;
    } else{
      hh=0;
    }
    vx += ((ax-ox)/(boo+f))/gain;
    vy += ((ay-oy)/(boo+f))/gain;
    nx=vx;
    ny=vy;
    col = color(hh,50,bb,5);
    stroke(col);
    line(ox,oy,nx,ny);
    ox = nx;
    oy = ny;
  }
}