public Quadrangle Transform(Matrix32 matrix)
{
return(new Quadrangle {
V1 = matrix.TransformVector(V1),
V2 = matrix.TransformVector(V2),
V3 = matrix.TransformVector(V3),
V4 = matrix.TransformVector(V4)
});
}
private void SetValueFromCurrentMousePosition(bool draggingJustBegun)
{
if (Rail == null)
{
return;
}
float railLength = Rail.CalcPolylineLength();
if (railLength <= 0)
{
return;
}
Matrix32 transform = Rail.LocalToWorldTransform.CalcInversed();
Vector2 p = transform.TransformVector(Input.MousePosition);
float offset = Rail.CalcSplineLengthToNearestPoint(p) / railLength;
if (RangeMax <= RangeMin)
{
return;
}
float v = offset * (RangeMax - RangeMin) + RangeMin;
if (draggingJustBegun)
{
dragInitialDelta = Value - v;
dragInitialOffset = offset;
return;
}
float prevValue = Value;
if (offset > dragInitialOffset && dragInitialOffset < 1)
{
Value = v + dragInitialDelta * (1 - (offset - dragInitialOffset) / (1 - dragInitialOffset));
}
else if (offset < dragInitialOffset && dragInitialOffset > 0)
{
Value = v + dragInitialDelta * (1 - (dragInitialOffset - offset) / dragInitialOffset);
}
else
{
Value = v + dragInitialDelta;
}
if (Step > 0)
{
Value = (float)Math.Round(Value / Step) * Step;
}
if (Value != prevValue)
{
RaiseChanged();
}
}