//---------------------------------------------------------------------------------------------------------
//HAUPTPROGRAMM
//---------------------------------------------------------------------------------------------------------

  ArrayList attractorList;
  ArrayList particleList;
  ArrayList particlepdfList;
  ArrayList dichteList;
  HScrollbar hNumPart;
  HScrollbar hMaxD;
  float numP;
  float maxD;
  float d;
  import processing.pdf.*;
  PGraphics fassade;
  PFont font;

//---------------------------------------------------------------------------------------------------------
//---------------------------------------------------------------------------------------------------------

  void setup()
  {
    size(600,550);
    frameRate (180);
  
    attractorList = new ArrayList();
    particleList = new ArrayList();
    dichteList = new ArrayList();
    particlepdfList = new ArrayList();


//--------------------------------------------------------------------------------------------------------- 
//FASSADENUMRISS ZEICHNEN
      
    fassade = createGraphics(600,550,JAVA2D);  
    fassade.beginDraw();
    fassade.background(0);
    fassade.fill(255);
    fassade.rect(50,50,500,400);
    fassade.endDraw();

//---------------------------------------------------------------------------------------------------------
    font = createFont("Arial-BoldMS-12.vlw",12);
    image( fassade, 0, 0);
//---------------------------------------------------------------------------------------------------------
    hNumPart = new HScrollbar(50, 535, 109, 10,2);
    hMaxD = new HScrollbar(300, 535, 109, 10,10000);
  }

//---------------------------------------------------------------------------------------------------------
//END SETUP
//---------------------------------------------------------------------------------------------------------

  void draw()
  {  
//---------------------------------------------------------------------------------------------------------
//PARTIKEL AKTIONEN STARTEN
    for (int i=0; i<particleList.size(); i++)
    {
    Particle pt = (Particle) particleList.get(i);
    pt.step();
    }
    
//---------------------------------------------------------------------------------------------------------
//GESAMTDICHTE †BERPR†FEN
 gesammtDichte();
 
//---------------------------------------------------------------------------------------------------------
//TEXTE SCHREIBEN
  fill(0);
  rect (40,1,500,49);
  rect (40,451,500,549);
  fill(255);
  textFont(font); 
  text("PARTICLEFACADE", 50, 31);
  text("RANDOM PARTICLES:    press r", 50, 480);
  text("PARTICLES IN A LINE:    press l", 50, 500);
  text("WRITE PDF:        press p", 300, 480);
  text("NEW FACADE:    press n", 300, 500);
  text("NUMBER OF PARTICLES:   "+   int (numP), 50, 520);
  text("MAXIMUM CONCENTRATION:   "+   int (maxD), 300, 520);

//---------------------------------------------------------------------------------------------------------
//REGLER †BERPR†FEN - MAXIMAL DICHTE UND PARTIKELANZAHL FESTLEGEN
  hNumPart.update();
  hMaxD.update();
  hNumPart.display();
  hMaxD.display();
 
  numP = hNumPart.getPos();  

  maxD = hMaxD.getPos(); 
  
//---------------------------------------------------------------------------------------------------------
//ATTRACTOREN ZEIGEN
/*
    for (int i=0; i<attractorList.size();i++)
    {
    Attractor at = (Attractor) attractorList.get(i);
    at.display();
    }*/
//---------------------------------------------------------------------------------------------------------
//FENSTER ZEIGEN
/*
    for (int i=0; i<dichteList.size();i++)
    {
    Dichte di = (Dichte) dichteList.get(i);
    di.display();
    }*/  
  }
//---------------------------------------------------------------------------------------------------------
//END DRAW
//---------------------------------------------------------------------------------------------------------
//ATTRACTOREN SETZEN

void attractor(float a)
{
    for (int i=0; i<a;i++)
    {
    Attractor at = new Attractor(100,0.005);
    attractorList.add(at); 
    }
}
//---------------------------------------------------------------------------------------------------------
//PARTIKEL RANDOM SETZEN

void newRandomParticle()
      {      
      attractor(50);
      window(100,300,500,400,25000);
      window(450,100,500,200,3000);
      window(332,100,382,200,3000);
      window(216,100,266,200,3000);
      window(100,100,150,200,3000);
      for (int i=0; i<numP;i++)
      {
      Particle pt = new Particle(random(50,550),random(50,450),random(-1,1),random(-1,1));
      particleList.add(pt);
      particlepdfList.add(pt); 
      pt.setAttractorList(attractorList);
      pt.setDichteList(dichteList);
      pt.setParticleList(particleList);
      pt.setFassade( fassade );
      }     
}

//---------------------------------------------------------------------------------------------------------
//PARTIKEL IN EINER LINIE SETZEN
  void newLineParticle()
      {         
      attractor(50);
      window(100,300,500,400,25000);
      window(450,100,500,200,3000);
      window(332,100,382,200,3000);
      window(216,100,266,200,3000);
      window(100,100,150,200,3000);
      for (int i=0; i<numP/2;i++)
        {
        Particle pt = new Particle(51,51+i*400/(numP/2),1,0);
        particleList.add(pt);
        particlepdfList.add(pt); 
        pt.setAttractorList(attractorList);
        pt.setDichteList(dichteList);
        pt.setParticleList(particleList);
        pt.setFassade( fassade );
        } 
          for (int i=0; i<numP/2;i++)
        {
        Particle pt = new Particle(549,51+i*400/(numP/2),-1,0);
        particleList.add(pt);
        particlepdfList.add(pt); 
        pt.setAttractorList(attractorList);
        pt.setDichteList(dichteList);
        pt.setParticleList(particleList);
        pt.setFassade( fassade );
        } 
      }
//---------------------------------------------------------------------------------------------------------
//FENSTER SETZEN
    void window(float x,float y, float x1, float y1,float d)
    {
    for (int i=0; i<1;i++)
      {
      Dichte di = new Dichte(x,y,x1,y1,d);
      dichteList.add(di); 
    }
    }
//---------------------------------------------------------------------------------------------------------
//TASTATUR BEFEHLE

  void keyPressed() 
    {
    if (key == 'r')
    { 
    newRandomParticle();
       }else if (key == 'l')
       {
       newLineParticle();
         }else if (key == 'p')
         {
         recordPDF();
           }else if (key == 'n')
           {  
              setup();
              d=0;
              loop();
             
           }
           
    }
     
//---------------------------------------------------------------------------------------------------------
//PDF SCHREIBEN

  void recordPDF() 
  {
    PGraphics pdf = createGraphics(500, 420, PDF, datum()+".pdf");    
    pdf.beginDraw();
    pdf.fill(0);
    pdf.noStroke();
    pdf.strokeWeight(0.5);
    pdf.textFont(font); 
    pdf.text("frame:  " + frameCount, 10, 415);
    pdf.text("number of Particles:  " + round(numP) ,110,415);
    pdf.text("current concentration:  " + round(d),300,415);
    pdf.noFill();
    pdf.stroke(0,100); 
    pdf.translate(-50,-50);

    for (int i=0; i<particlepdfList.size(); i++)
      {
      Particle pt = (Particle) particlepdfList.get(i);
      ArrayList pointList = pt.getPointList();      
      pdf.beginShape(); 
        for (int j=0; j<pointList.size();j++)
        {
        Point poi = (Point) pointList.get(j);   
        pdf.vertex(poi.getX(),poi.getY());     
        }
      pdf.endShape();
      }
    pdf.dispose();
    pdf.endDraw();
    println("saving done");
  
}

//---------------------------------------------------------------------------------------------------------
//DATUM STRING F†R DATEINAMEN
  String datum()
  {
  int h = hour();
  int d = day();   
  int m = month();  
  int n = minute();   
  String datum = String.valueOf(h)+":"+String.valueOf(n)+"-"+String.valueOf(d)+"-"+String.valueOf(m);
  return datum;
  }
  
//---------------------------------------------------------------------------------------------------------
//PARTIKELGEBURT

  void newParticle()
  {
  for (int i=0; i < 1;i++)
      {
      Particle pt = new Particle(random(50,550),random(50,450),random(-1,1),random(-1,1));
      pt.setDichteList(dichteList);
      pt.setParticleList(particleList);
      pt.dichteCheck();
      particleList.add(pt);
      particlepdfList.add(pt); 
      pt.setAttractorList(attractorList);      
      pt.setFassade( fassade );
      }
  }
//---------------------------------------------------------------------------------------------------------
//GESAMMTDICHTE

 void dBigger()
 {
  d=d+1; 
 }
  
  
 void gesammtDichte()
 {
   if (d + numP >maxD)
   {
     noLoop();
     println("stop");
   }
 }