/// <summary>
/// <para>Calls the method NextLevel from the PlayerSpawner and the EnemySpawner</para>
/// <para>Adds the level score to the score and sets the level score to zero</para>
/// <remarks>This method is called when the transition time from the previous level is finished</remarks>
/// </summary>
/// <param name="level">The number of the new level</param>
private void NewLevel(int level)
{
score += levelScore;
UpdateLevelScore(0);
scoreUI.UpdateValue(score);
playerSpawner.NextLevel();
enemySpawner.NextLevel(level);
}
