private void HighlightFirstVertex(double elapsedTime, float mouseX, float mouseY)
{
PolyVertex firstPoint = _vertexList.FirstOrDefault();
_highlightCircleTween.Update(elapsedTime);
_hightLightCircle.Radius = _highlightCircleTween.Value();
if (firstPoint == null)
{
return;
}
_hightLightCircle.X = firstPoint.Point.X;
_hightLightCircle.Y = firstPoint.Point.Y;
_hightLightCircle.Radius = 15; // set to max for intersection test
if (_hightLightCircle.Intersects(mouseX, mouseY))
{
if (_mouseNearFirstVertex == false)
{
_highlightCircleTween = new Tween(_highlightCircleTween.Value(), 15, 0.4);
_mouseNearFirstVertex = true;
}
}
else if (_mouseNearFirstVertex)
{
_mouseNearFirstVertex = false;
_highlightCircleTween = new Tween(_highlightCircleTween.Value(), 0, 0.4);
}
_hightLightCircle.Radius = _highlightCircleTween.Value();
}
