/// <inheritdoc cref="NotuiElement"/>
public override IntersectionPoint PureHitTest(Touch touch, bool prevpos, out IntersectionPoint persistentIspoint)
{
var intersection = PreparePlanarShapeHitTest(touch, prevpos);
var phit = intersection != null;
if (!phit)
{
persistentIspoint = null;
return(null);
}
//TODO: Ugly as f**k, fix phase like a human being
var uvpos = Coordinates.RectToPolar(Vector2.Transform(intersection.ElementSpace.xy(), Matrix3x2.CreateRotation((float)Math.PI)));
var d = uvpos.Y;
uvpos.X = uvpos.X / (float)Math.PI;
uvpos.Y = uvpos.Y * 4 - 1;
intersection.SurfaceSpace = new Vector3(uvpos, 0);
var str = Matrix4x4.CreateWorld(intersection.ElementSpace, Vector3.UnitZ,
-Vector3.Normalize(intersection.ElementSpace));
intersection.WorldSurfaceTangentTransform = str * DisplayMatrix;
persistentIspoint = intersection;
return(d < 0.5 ? intersection : null);
}
/// <inheritdoc cref="NotuiElement"/>
public override IntersectionPoint PureHitTest(Touch touch, bool prevpos, out IntersectionPoint persistentIspoint)
{
var intersection = PreparePlanarShapeHitTest(touch, prevpos);
var phit = intersection != null;
if (!phit)
{
persistentIspoint = null;
return(null);
}
//var polar = Coordinates.RectToPolar(intersection.ElementSpace.xy());
//polar.X = (float)Math.PI + (polar.X - Phase * (float)Math.PI*2) * Math.Sign(Cycles);
var rad = Math.Max(HoleRadius, 1);
var hrad = Math.Min(HoleRadius, 1);
var uvpos = Coordinates.RectToPolar(
Vector2.Transform(
intersection.ElementSpace.xy(),
Matrix3x2.CreateRotation((-Phase + 0.5f) * 2.0f * (float)Math.PI)
)
);
uvpos.X = Cycles > 0 ?
(float)VMath.Map(uvpos.X / (float)Math.PI, -1, Cycles * 2 - 1, -1, 1, TMapMode.Float) :
(float)VMath.Map(uvpos.X / (float)Math.PI, 1, 1 + Cycles * 2, -1, 1, TMapMode.Float);
uvpos.Y = HoleRadius > 1 ?
(float)VMath.Map(uvpos.Y * 2, hrad, rad, -1, 1, TMapMode.Float) :
(float)VMath.Map(uvpos.Y * 2, hrad, rad, 1, -1, TMapMode.Float);
intersection.SurfaceSpace = new Vector3(uvpos, 0);
var str = Matrix4x4.CreateWorld(intersection.ElementSpace, Vector3.UnitZ,
-Vector3.Normalize(intersection.ElementSpace));
intersection.WorldSurfaceTangentTransform = str * DisplayMatrix;
//var hit = polar.Y * 2 < rad && polar.Y * 2 >= hrad && (polar.X + Math.PI) % (Math.PI * 2) <= Math.Abs(Cycles * Math.PI * 2);
var hit = uvpos.X > -1 && uvpos.X <1 && uvpos.Y> -1 && uvpos.Y < 1;
persistentIspoint = intersection;
return(hit ? intersection : null);
}
