class Vec
{
  int[] x = new int[numFrames];
  int[] y = new int[numFrames];
  int curI = 0;

  Vec(int startX, int startY, int targX, int targY)
  {
    int diffX = startX - targX;
    int diffY = startY - targY;
    double len = sqrt(sq(diffX) + sq(diffY));
    double dX = diffX/(double)(numFrames+dly);
    double dY = diffY/(double)(numFrames+dly);

    for(int i=0; i<numFrames; i++){
      x[i] = startX - (int)(dX*i);
      y[i] = startY - (int)(dY*i);
    }
  }

  void playVec()
  {
    for(int j=0; j<numFrames; j++){
      rect(x[j]-rectW, y[j]-rectW, 2*rectW, 2*rectW);
      //delay(4);
    }
  }

}