public void setCoordinate(Coordinate a) {
		boolean test = false;
        if (test || m_test) {
            System.out.println("Grid :: setCoordinate() BEGIN");
        }
		m_Grid[a.getX()][a.getY()] = a.getValue();
		if (test || m_test) {
            System.out.println("Grid :: setCoordinate() END");
		}
	}