protected LastingLevelEvent(Game1 Game, PlayerVerticalShooter player, Sprite spriteSheet, Level level, PointLevelEvent pointLevelEvent,
float startTime, float duration)
: base(Game, player, spriteSheet, level, pointLevelEvent.EnemyType, startTime)
{
this.duration = duration;
hasDuration = true;
timePassed = 0;
}