public void GenerateBarrel(int difficulty)
{
List <System.Func <GameObject> > functionsList = new List <System.Func <GameObject> >();
functionsList.Add(() => BarrelPresets.inst.InstantiateStepRotating(nextBarrelPosition, Quaternion.identity, difficulty, false));
functionsList.Add(() => BarrelPresets.inst.InstantiatePathThreePointsVertical(nextBarrelPosition, Quaternion.identity, difficulty, false));
functionsList.Add(() => BarrelPresets.inst.InstantiatePathSwingVertical(nextBarrelPosition, Quaternion.identity, difficulty, false));
GameObject newBarrel = functionsList[Random.Range(0, functionsList.Count)]();
//GameObject newBarrel = functionsList[0]();
newBarrel.transform.parent = this.gameObject.transform;
Barrel newBarrelScript = newBarrel.GetComponent <Barrel>();
newBarrelScript.difficulty = difficulty;
GameManager.inst.barrels.Add(newBarrel);
nextBarrelPosition = newBarrelScript.NextBarrelPosition();
}