void keyPressed(){
  // TOGGLE NAMES
  if(key == 'n'){
    blnNames =! blnNames;
  }
  // TOGGLE CAMERA ROTATE
  if(key == 'r'){
    blnRotate =! blnRotate;
  }
  // EXPLODE NODES
  if(key == ' '){
    if(blnExplode == false){
      blnExplode = true;
      println("explode on!");
    }
    else {
      blnExplode = false;
      println("explode off!");
    }
  }
}

void mouseReleased(){
  if(mouseButton == LEFT){
    blnHull = true;
  }
  if(mouseButton == RIGHT){
    camRotX = 0.0;
    camRotY = 0.0;
  }
}

void mouseWheel(int delta) {
  camLen += delta*30*siteScale;
}

void mouseDragged(){
  if(mouseButton == RIGHT){
    camRotX = (mouseX - pmouseX)*0.05*siteScale;
    camRotY = (mouseY - pmouseY)*5*siteScale;
  }
}