// Flocking
// Daniel Shiffman <http://www.shiffman.net>
// The Nature of Code, Spring 2009

// Demonstration of Craig Reynolds' "Flocking" behavior
// See: http://www.red3d.com/cwr/
// Rules: Cohesion, Separation, Alignment

// Click mouse to add boids into the system

Flock flock;
int colorDiff = 0 ;
int maxDiff = 0;
int minDiff = 0;
float rDiff = 0 ;
float maxRDiff = 0;
float minRDiff = 0;
float rThresh = 2.0;
int colorThresh = 20;
void setup() {
  size(600,600);
  flock = new Flock();
  // Add an initial set of boids into the system
  for (int i = 0; i < 100; i++) {
    flock.addBoid(new Boid(new PVector(width/2,height/2),5.0,0.05));
  }
  smooth();
}

void draw() {
  background(255);
  flock.run();
  //flock.tellColor();
  compareColor();
  compareR();
}

// Add a new boid into the System
void mousePressed() {
  flock.addBoid(new Boid(new PVector(mouseX,mouseY),2.0,0.05f));
}


void compareColor() {
  for (int i=0; i < flock.getBoidNum(); i++) {
    Boid b1 = (Boid)(flock.boids).get(i);
    for (int j = i; j <flock.getBoidNum(); j++) {
      Boid b2 = (Boid)(flock.boids).get(j);

        colorDiff = (b1.colorBoid-b2.colorBoid);
    // println(colorDiff);
    if(colorDiff>maxDiff) maxDiff= colorDiff;
    if(colorDiff<minDiff) minDiff = colorDiff;
    
   float colorMapped = map(colorDiff, minDiff, maxDiff, 0.2, 50);
   
   if(colorMapped > colorThresh){
      b1.colorDifference(30);
   }
   else{
           b1.colorDifference(1);
   }
 /* if( b1.colorBoid == b2.colorBoid){
   b1.colorDifference(1);
    }
    else{
         b1.colorDifference(10);
       }*/
   
    } 
  }
}



void compareR() {
  for (int i=0; i < flock.getBoidNum(); i++) {
    Boid b1 = (Boid)(flock.boids).get(i);
    for (int j = i; j <flock.getBoidNum(); j++) {
      Boid b2 = (Boid)(flock.boids).get(j);

        rDiff = (b1.r-b2.r);
    // println(colorDiff);
    if(rDiff>maxRDiff) maxRDiff= rDiff;
    if(rDiff<minRDiff) minRDiff = rDiff;
    
   float rMapped = map(rDiff, minRDiff, maxRDiff, 3,0);
   
    b1.velocityVal(rMapped);
  /*if(rMapped > rThresh){
     b1.velocityVal(1.0);
  }
  else{
           b1.velocityVal(1);
  }*/
  
   
    } 
  }
}

void keyPressed(){
 if(key == '='){
 colorThresh++;
 }  else if (key == '-') {
  colorThresh--; 
 }
  else if(key == 'z'){
 rThresh++;
 }  else if (key == 'x') {
  rThresh--; 
 }
  
}