====== Vigo ======

//Vigo::3D, or Vigo for short (pronounced: veeh-goh) is a framework for simulating and visualizing of three-dimensional scenes. Vigo is suited for creating dynamical systems of interacting agents, in which the agents move in a three-dimensional space, and perceive ("see") their neighbours around them.//



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^**Homepage**  | http://sourceforge.net/projects/vigo |
^**Origin**    | University of Calgary  |
^**Year**      | under devel |
^**Version**   | 0.84 |
^**License**   | GNU-GPL |
^**Language**  | C++ |

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  bool Act()
  {
    switch(ActPhase())
    {
      case 0: // move
        MoveBy(Vector(Point::Random(Point::_0,MAX_STEP_SIZE)));
        break;
      case 1: // think
        // only look for neighbours of your kind
        Nbr(GrpId(),VISION_RADIUS,m_nearMe,MAX_SHOWN_NBR,true);
        // determine shade
        uint   ns = m_nearMe.size();
        double dn = ((double)ns+1/*myself*/)/MAX_SHOWN_NBR;
        dn *= NUM_SHADES;
        uint nn = min((uint)dn,NUM_SHADES-1);
        // the more neighbours, the darker
        SetAppearance(Scale()[NUM_SHADES-1-nn]);
        break;
    }
  }