[ImplementsPowerSNO(Skills.Skills.DemonHunter.Discipline.Vault)]
    public class DemonHunterVault : PowerScript
    {
        public override IEnumerable<TickTimer> Run()
        {
            //StartCooldown(WaitSeconds(10f));

            Vector3D delta = new Vector3D(TargetPosition - User.Position);
            float delta_length = (float)Math.Sqrt(delta.X * delta.X + delta.Y * delta.Y);
            Vector3D delta_normal = new Vector3D(delta.X / delta_length, delta.Y / delta_length, delta.Z / delta_length);
            float unitsMovedPerTick = 60f;
            Vector3D ramp = new Vector3D(delta_normal.X * (delta_length / unitsMovedPerTick),
                                         delta_normal.Y * (delta_length / unitsMovedPerTick),
                                         0.1f); // usual leap height, possibly different when jumping up/down?

            // TODO: Generalize this and put it in Actor
            User.World.BroadcastIfRevealed(new ACDTranslateArcMessage()
            {
                ActorId = (int)User.DynamicID,
                Start = User.Position,
                Velocity = ramp,
                //Field3 = 69793, // used for male barb leap
                FlyingAnimationTagID = 69792, // used for female dh backflip
                LandingAnimationTagID = 69794,
                Field6 = -0.1f, // gravity
                Field7 = Skills.Skills.DemonHunter.Discipline.Vault,
                Field8 = 0,
                Field9 = TargetPosition.Z,
            }, User);
            User.Position = TargetPosition;

            // wait for leap to hit
            yield return WaitSeconds(0.6f);

            yield break;
        }
    }
    [ImplementsPowerSNO(Skills.Skills.DemonHunter.HatredSpenders.FanOfKnives)]
    public class DemonHunterFanOfKnives : PowerScript
    {
        public override IEnumerable<TickTimer> Run()
        {
            UsePrimaryResource(20f);
            //StartCooldown(WaitSeconds(10f));
            AttackPayload attack = new AttackPayload(this);
            attack.AddTargets(GetEnemiesInRadius(User.Position, 10));
            attack.AddWeaponDamage(0.5f, DamageType.Physical);
            attack.OnHit = (hit) =>
            {
                AddBuff(hit.Target, new DebuffSlowed(WaitSeconds(4f)));
            };
            attack.Apply();
            //WeaponDamage(GetEnemiesInRadius(User.Position, 10f), 1.00f, DamageType.Physical);
            User.PlayEffectGroup(77547);
            yield break;
        }

    }