public static (Vector3 Start, Vector3 End) UndoConstrict(Vector3 start, Vector3 end, float ratio)
{
Vector3 center = (start + end) / 2;
return(XnaExtensions.GetLerpValARequiredForResult(center, start, 1 - ratio),
XnaExtensions.GetLerpValARequiredForResult(center, end, 1 - ratio));
}
private void BakeKeyframesToLiveMod(List <DummyPolyBladePos> positions)
{
var posLowHzToLive = (CurrentPosLive.End - CurrentPos.End);
var rotLowHzToLive = Matrix.CreateFromQuaternion(XnaExtensions.GetQuatOfBladePosDelta(CurrentPos, CurrentPosLive));
var asList = Keyframes.ToList();
for (int i = 0; i < asList.Count - 1; i++)
{
DummyPolyBladePos bakedPos = new DummyPolyBladePos();
if (positions.Count < asList.Count)
{
bakedPos = positions[i];
}
else
{
if (i < positions.Count - 1)
{
bakedPos = positions[i + 1];
}
else
{
bakedPos = CurrentPos;
}
}
var mod = KeyframeMods[i + 1];
var finalEnd = bakedPos.End;
var finalStart = bakedPos.Start;
//var dir = Vector3.Transform(asList[i].Start - asList[i].End, rotLowHzToLive);
//var finalEnd = asList[i].End + posLowHzToLive;
//var finalStart = finalEnd + (dir);
//UN - constrict
(finalStart, finalEnd) = UndoConstrict(finalStart, finalEnd, mod.Constrict);
//UN - Lerp
finalStart = XnaExtensions.GetLerpValARequiredForResult(CurrentPos.Start, finalStart, mod.DistanceLerp);
finalEnd = XnaExtensions.GetLerpValARequiredForResult(CurrentPos.End, finalEnd, mod.DistanceLerp);
asList[i] = new DummyPolyBladePos()
{
Start = finalStart,
End = finalEnd,
Opacity = Opacity * asList[i].Opacity,
};
}
Keyframes = new Queue <DummyPolyBladePos>(asList);
}