private IEnumerator DigTile()
{
PlayerComponent m_player = m_gameManager.LocalPlayer;
m_player.StartDig();
print("start cracked a land brick");
yield return(new WaitForSeconds(diggingTime));
/*new a land fragment for pick up*/
//crackALandTile();
//isCracked = true;
m_worldManager.UpdateTileMap(index, 0);
m_player.EndDig();
}