Led[][] lamp = new Led[6][6];
Slider rrr = new Slider(-200, 200, 0, 0);
Slider ggg = new Slider(0, 200, 0, 0);
Slider bbb = new Slider(200, 200, 0, 0);
int sep = 40;
int ledSize = 40;
float ramt = 0;
float gamt = 0;
float bamt = 0;



void setup ()
{

  size(800, 600);
  framerate(60);
  colorMode(RGB, 1.0);
  background(0);
  rectMode(CENTER);

  fill(1);
  noStroke();
  
}



void draw ()
{

  background(0);
  
  translate(width/2, height/2);
  
  pushMatrix();
  translate(-sep/2, -20);
  
  //1
  
  fill(rrr.pos/10, ggg.pos/10, bbb.pos/10);
  lamp[0][0] = new Led(-3*sep, -3*sep, 1, 1, 1);
  lamp[0][5] = new Led(-3*sep, 3*sep, 1, 1, 1);
  lamp[5][0] = new Led(3*sep, -3*sep, 1, 1, 1);
  lamp[5][5] = new Led(3*sep, 3*sep, 1, 1, 1);
  
  //2
  
  fill(rrr.pos/10-1, ggg.pos/10-1, bbb.pos/10-1);
  lamp[1][0] = new Led(-2*sep, -3*sep, 1, 1, 1);
  lamp[0][4] = new Led(-3*sep, 2*sep, 1, 1, 1);
  lamp[4][5] = new Led(2*sep, 3*sep, 1, 1, 1);
  lamp[5][1] = new Led(3*sep, -2*sep, 1, 1, 1);
  
  //3
  
  fill(rrr.pos/10-2, ggg.pos/10-2, bbb.pos/10-2);
  lamp[0][1] = new Led(-3*sep, -2*sep, 1, 1, 1);
  lamp[4][0] = new Led(2*sep, -3*sep, 1, 1, 1);
  lamp[5][4] = new Led(3*sep, 2*sep, 1, 1, 1);
  lamp[1][5] = new Led(-2*sep, 3*sep, 1, 1, 1);
  
  //4
  
  fill(rrr.pos/10-3, ggg.pos/10-3, bbb.pos/10-3);
  lamp[2][0] = new Led(-1*sep, -3*sep, 1, 1, 1);
  lamp[0][3] = new Led(-3*sep, 1*sep, 1, 1, 1);
  lamp[3][5] = new Led(1*sep, 3*sep, 1, 1, 1);
  lamp[5][2] = new Led(3*sep, -1*sep, 1, 1, 1);
  
  //5
  
  fill(rrr.pos/10-4, ggg.pos/10-4, bbb.pos/10-4);
  lamp[1][1] = new Led(-2*sep, -2*sep, 1, 1, 1);
  lamp[1][4] = new Led(-2*sep, 2*sep, 1, 1, 1);
  lamp[4][1] = new Led(2*sep, -2*sep, 1, 1, 1);
  lamp[4][4] = new Led(2*sep, 2*sep, 1, 1, 1);
  
  //6
  
  fill(rrr.pos/10-5, ggg.pos/10-5, bbb.pos/10-5);
  lamp[0][2] = new Led(-3*sep, -1*sep, 1, 1, 1);
  lamp[3][0] = new Led(1*sep, -3*sep, 1, 1, 1);
  lamp[5][3] = new Led(3*sep, 1*sep, 1, 1, 1);
  lamp[2][5] = new Led(-1*sep, 3*sep, 1, 1, 1);
  
  //7
  
  fill(rrr.pos/10-6, ggg.pos/10-6, bbb.pos/10-6);
  lamp[1][2] = new Led(-2*sep, -1*sep, 1, 1, 1);
  lamp[3][1] = new Led(1*sep, -2*sep, 1, 1, 1);
  lamp[4][3] = new Led(2*sep, 1*sep, 1, 1, 1);
  lamp[2][4] = new Led(-1*sep, 2*sep, 1, 1, 1);
  
  //8
  
  fill(rrr.pos/10-7, ggg.pos/10-7, bbb.pos/10-7);
  lamp[2][1] = new Led(-1*sep, -2*sep, 1, 1, 1);
  lamp[1][3] = new Led(-2*sep, 1*sep, 1, 1, 1);
  lamp[3][4] = new Led(1*sep, 2*sep, 1, 1, 1);
  lamp[4][2] = new Led(2*sep, -1*sep, 1, 1, 1);
  
  //9
  
  fill(rrr.pos/10-8, ggg.pos/10-8, bbb.pos/10-8);
  lamp[2][2] = new Led(-1*sep, -1*sep, 1, 1, 1);
  lamp[2][3] = new Led(-1*sep, 1*sep, 1, 1, 1);
  lamp[3][2] = new Led(1*sep, -1*sep, 1, 1, 1);
  lamp[3][3] = new Led(1*sep, 1*sep, 1, 1, 1);
  
  popMatrix();
  
  rrr.draw();
  ggg.draw();
  bbb.draw();
  


}



void mouseDragged() 
{
  int mouseXAdj = mouseX - width/2;
  int mouseYAdj = mouseY - height/2;
  if( mouseYAdj > 180 && mouseYAdj < 220 ) {
    if( mouseXAdj > rrr.x-50 && mouseXAdj < rrr.x+50 ) {
      rrr.pos = mouseXAdj - rrr.x + 50;
    }
    if( mouseXAdj > ggg.x-50 && mouseXAdj < ggg.x+50 ) {
      ggg.pos = mouseXAdj - ggg.x + 50;
    }
    if( mouseXAdj > bbb.x-50 && mouseXAdj < bbb.x+50 ) {
      bbb.pos = mouseXAdj - bbb.x + 50;
    }
  }
} 



void mouseReleased() 
{
}



// Classes.

class Led {

  int x;
  int y;
  float r;
  float g;
  float b;
  
  Led (int _x, int _y, float _r, float _g, float _b) {
    x = _x;
    y = _y;
    r = _r;
    g = _g;
    b = _b;
    pushMatrix();
    translate(x, y);
    ellipse(ledSize/2, ledSize/2, -ledSize/2, -ledSize/2);
    popMatrix();
  }
  
  void set(float _r, float _g, float _b) {
    r = _r;
    g = _g;
    b = _b;
    pushMatrix();
    translate(x, y);
    ellipse(ledSize/2, ledSize/2, -ledSize/2, -ledSize/2);
    popMatrix();
    
  }

}


class Slider {

  int x;
  int y;
  float pos;
  int sw;
  
  Slider (int _x, int _y, float _pos, int _sw) {
    x = _x;
    y = _y;
    pos = _pos;
    sw = _sw;
  }
  
  void draw() {
    pushMatrix();
    translate(x, y);
    fill(0.5);
    rect(0, 0, 100, 10);
    pushMatrix();
    translate(pos-50, -10);
    fill(1);
    rect(0, 0, 4, 20);
    popMatrix();
    popMatrix();
  }

}