public String toString() {
		boolean test = false;
        if (test || m_test) {
            System.out.println("Grid :: toString() BEGIN");
        }
	    String gridString = "";
	    for (int y = 0; y < getGridHeight(); ++y) {
	        for (int x = 0; x < getGridWidth(); ++x) {
	        gridString += m_Grid[x][y] + ",";
	        }
	    }
	    if (test || m_test) {
            System.out.println("Grid :: toString() END");
        }

	    return gridString;
	}