/// <summary>
/// Calculates the percentage of the shape the players have to fill that is filled by their shadow.
/// </summary>
/// <param name="shapeToFill">The shape players have to fill.</param>
/// <param name="peoplesShadows">The players' overall shadow.</param>
/// <returns>The percentage of the shape that is filled by the players' overall shadow.</returns>
public float FilledPercentageFromGeometries(Geometry shapeToFill, Geometry peoplesShadows)
{
double maximumArea = shapeToFill.GetArea();
double filledArea = Geometry.Combine(shapeToFill, peoplesShadows, GeometryCombineMode.Intersect, null).GetArea();
double percentage = 100 * filledArea / maximumArea;
percentage = Math.Round(percentage*1.5, 2);
return percentage > 100 ? 100 : (float)percentage;
}
GetArea
(
Geometry oGeometry
)
{
Debug.Assert(oGeometry != null);
AssertValid();
// Using the simeple Geometry.GetArea() overload leads to rounding
// errors when used on circular vertices. Use the other overload that
// allows a tolerance to be specified.
return ( oGeometry.GetArea(0.000001, ToleranceType.Relative) );
}