@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
Player player = (Player) o;
if (account != null ? !account.equals(player.account) : player.account != null) return false;
return role == player.role;
}
@Override
public int hashCode() {
int result = account != null ? account.hashCode() : 0;
result = 31 * result + (role != null ? role.hashCode() : 0);
return result;
}