public override void Update()
{
//if the number of swords in trace is 0
//or the last created sword reach its limit distance
if (Helper.EuclideanDistance(Position, previousSESpawnPosition) > Parameter.ProjectileKnightTraceDistanceOffset)
{
previousSESpawnPosition = Position;
//a new sword and sfx is appended to the trace
SpecialEffect sword = SpecialEffectBuilder.KnightProjectileBullet1(Position, CurrentFlipbookRotation);
swordTrace.Insert(0, sword);
//Transparency
initialAlpha = Parameter.ProjectileKnightInitialAlpha;
foreach (SpecialEffect se in swordTrace)
{
se.Flipbook.Color = FlipbookList[0].Color * initialAlpha;
initialAlpha -= Parameter.ProjectileKnightTraceAlphaDecay + swordTrace.Count * Parameter.ProjectileKnightTraceAlphaDecayFactor;
}
}
base.Update();
}
