float[] x = new float[12];
float[] y = new float[12];
float[] z = new float[12];

PFont font;
float rotX=0,rotY=0; //for animating rotation

void setup() {
  size(500,500,P3D);

  font = loadFont("AachenBT-Roman-48.vlw"); 
  textFont(font); 
  
  //build table
  for (int i=0; i<12; i++) {
    if (i==0)          { x[i]=0; y[i]=0; z[i]=.5*sqrt(5.0); }
    if (i>=1 && i<=5)  { x[i]=cos((i-1)*2*PI/5); y[i]=sin((i-1)*2*PI/5); z[i]=.5; }
    if (i>=6 && i<=10) { x[i]=cos(PI/5+(i-6)*2*PI/5); y[i]=sin(PI/5+(i-6)*2*PI/5); z[i]=-.5; }
    if (i==11)         { x[i]=0; y[i]=0; z[i]=-.5*sqrt(5.0); }

    //normalize
    float r = sqrt(x[i]*x[i]+y[i]*y[i]+z[i]*z[i]);
    x[i] = x[i]/r;
    y[i] = y[i]/r;
    z[i] = z[i]/r;
  } 
}

void draw() {
  background(128,128,100);
  translate(width/2, height/2, -30); 
  
  //rotation
  float deltaX = rotX - mouseX/float(width) * TWO_PI;
  float deltaY = rotY - mouseY/float(height) * TWO_PI;
  if (abs(deltaX)>.01) rotX -= deltaX/4;
  if (abs(deltaY)>.01) rotY -= deltaY/4;
  rotateX(-rotY);
  rotateY(-rotX); 
  
  float r=150;
  
  //drawing Icosahedra 
  for (int i=0; i<12; i++) {
      text(i,r*x[i],r*y[i],r*z[i]);
  }
  
  //next step is to connect the right nodes to each other...
  //see: http://www.science.gmu.edu/~nahmad/globgen/
  
}