//Drifting Nodes
//5.19.2009
//===== Warning: code is very messy =====
Vector pluses = new Vector();
color backGround = color(75); //Background color
//PFont font;
float connectionDist = 135;

void setup()
{
  size(1280, 720);
  smooth();
  frameRate(30);
  //font = loadFont("FreeSansBold-22.vlw");
  //textFont(font, 22);
  strokeWeight(2);

}
void draw()
{
  background(backGround);

  for (int i=0;i<pluses.size();i++)
  {
    plus p = (plus)pluses.elementAt(i);
    /*    
    for(int k=0;k<pluses.size();k++)
    {
	plus q = (plus)pluses.elementAt(k);
	if( dist(p.x,p.y,q.x,q.y) < connectionDist)
	{
	  stroke(0, map(dist(p.x,p.y,q.x,q.y),0,connectionDist,255,0));
	  line(p.x,p.y,q.x,q.y);
	}
    }
    */
    p.display();
    if(p.alive == false)
    {
	pluses.remove(i);
    }
  }

  if(frameCount % 8 == 0) //Speed of plus spawn (lower number yields a faster spawn rate)
  {
    makePlus();
  }
  //========== Save IMG Sequence ==========
  saveFrame("DriftingNodes-####.png");
  //print("Seconds running: ");
  println(frameCount);
  //=======================================
  //fill(0);
  //text("Drifting Nodes Beta 5/19/2009",10,25);
}

void makePlus()
{
  color col;
  //col = color(random(235, 255), random(110, 191), random(8, 41)); //Color range for pluses
  col = color(random(0, 170), 220, random(0, 200)); //Green
  //col = color(random(224, 255), random(80, 163), random(5, 19)); //Orange
  //col = color(random(20, 50), random(77, 165), random(180, 240)); //Blue
  //col = color(random(255), random(255), random(255)); //All Colors
  //col = color(random(50,110));
  //col = color(random(100,255), random(200,230), random(200,230)); //Pastel
  pluses.addElement(new plus(random(-50, width+50), height+50, random(0.60,1.85), col, random(0.75,1.65), random(-0.25,0.25)));
}

class plus
{
  boolean alive;
  float x, y;
  float intialScale;
  color col;
  float changeSpeed, changeDirection;
  //float alphaFade;

  plus(float xpos, float ypos, float intialScale, color col, float changeSpeed, float changeDirection)
  {
    x=xpos;
    y=ypos;
    this.intialScale=intialScale;
    alive=true;
    this.col=col;
    this.changeSpeed = changeSpeed;
    this.changeDirection = changeDirection;
  }

  void display()
  {
    int connectionsCount = 0;
    for(int k = 0; k < pluses.size(); k++)
    {
	plus p = (plus)pluses.elementAt(k);
	if( dist(x, y, p.x, p.y) < connectionDist)
	{
	  stroke(0, map(dist(x,y,p.x,p.y),0,connectionDist,255,0));//*alphaFade/255);
	  line(x,y,p.x,p.y);
	  connectionsCount++;
	}
    }
    stroke(0);
    fill(0);
    ellipse(x,y,7*this.intialScale,7*this.intialScale);
    stroke(0,90);
    fill(this.col, 90);
    ellipse(x,y,30*this.intialScale,30*this.intialScale);

    // Display number of connections each node is holding
    // stroke(0);
    // fill(0);
    // connectionsCount-=1;
    // text(connectionsCount,x+2,y-5);

    // alphaFade = map(y, height+100, -100, 255, 0);//255 * (1 - (y / height));
    y-=(this.intialScale/2)*this.changeSpeed;
    x+=changeDirection;
    if(y < -100 || x < -30 || x > width+30)
    {
	alive = false;
    }
  }
}