private void m_DFSButton_Click(object sender, EventArgs e)
{
//Clear graph
GenerateGraph();
List <int> path = m_graph.CalculateDFS(m_startPosX + 64 * m_startPosY, m_endPosX + 64 * m_endPosY);
PaintPath(path);
m_panel.Refresh();
}