private void Start()
{
p1 = player1.GetPlayer();
p2 = player2.GetPlayer();
AddObservers();
sharedInstance = this;
}
/// <summary>
/// Sets the backup cards of the specified player to be targetable.
/// This gives the misisng backup cards a placeholder block.
/// </summary>
/// <param name="player"></param>
/// <param name="val"></param>
public void SetTargetable(PlayerManager player, bool val)
{
SoldierDefenseGroup targetPlayer = player == player1.GetPlayer() ? player1 : player2;
targetPlayer.SetTargetableAll(val);
}