/// <summary>
/// Checks whether the current BoundingFrustumD intersects a BoundingSphere.
/// </summary>
/// <param name="sphere">The BoundingSphere to check for intersection with.</param><param name="result">[OutAttribute] true if the BoundingFrustumD and BoundingSphere intersect; false otherwise.</param>
public void Intersects(ref BoundingSphereD sphere, out bool result)
{
if (this.gjk == null)
{
this.gjk = new GjkD();
}
this.gjk.Reset();
Vector3D result1;
Vector3D.Subtract(ref this.cornerArray[0], ref sphere.Center, out result1);
if ((double)result1.LengthSquared() < 9.99999974737875E-06)
{
result1 = Vector3D.UnitX;
}
double num1 = double.MaxValue;
result = false;
double num2;
do
{
Vector3D v;
v.X = -result1.X;
v.Y = -result1.Y;
v.Z = -result1.Z;
Vector3D result2;
this.SupportMapping(ref v, out result2);
Vector3D result3;
sphere.SupportMapping(ref result1, out result3);
Vector3D result4;
Vector3D.Subtract(ref result2, ref result3, out result4);
if ((double)result1.X * (double)result4.X + (double)result1.Y * (double)result4.Y + (double)result1.Z * (double)result4.Z > 0.0)
{
return;
}
this.gjk.AddSupportPoint(ref result4);
result1 = this.gjk.ClosestPoint;
double num3 = num1;
num1 = result1.LengthSquared();
if ((double)num3 - (double)num1 <= 9.99999974737875E-06 * (double)num3)
{
return;
}
num2 = 4E-05f * this.gjk.MaxLengthSquared;
}while (!this.gjk.FullSimplex && (double)num1 >= (double)num2);
result = true;
}
public void Intersects(ref BoundingSphereD sphere, out bool result)
{
Vector3D unitX;
Vector3D vectord2;
Vector3D vectord3;
Vector3D vectord4;
Vector3D vectord5;
if (this.gjk == null)
{
this.gjk = new GjkD();
}
this.gjk.Reset();
Vector3D.Subtract(ref this.cornerArray[0], ref sphere.Center, out unitX);
if (unitX.LengthSquared() < 9.99999974737875E-06)
{
unitX = Vector3D.UnitX;
}
double maxValue = double.MaxValue;
result = false;
Label_005D:
vectord2.X = -unitX.X;
vectord2.Y = -unitX.Y;
vectord2.Z = -unitX.Z;
this.SupportMapping(ref vectord2, out vectord3);
sphere.SupportMapping(ref unitX, out vectord4);
Vector3D.Subtract(ref vectord3, ref vectord4, out vectord5);
if ((((unitX.X * vectord5.X) + (unitX.Y * vectord5.Y)) + (unitX.Z * vectord5.Z)) <= 0.0)
{
this.gjk.AddSupportPoint(ref vectord5);
unitX = this.gjk.ClosestPoint;
double num3 = maxValue;
maxValue = unitX.LengthSquared();
if ((num3 - maxValue) > (9.99999974737875E-06 * num3))
{
double num2 = 3.9999998989515007E-05 * this.gjk.MaxLengthSquared;
if (!this.gjk.FullSimplex && (maxValue >= num2))
{
goto Label_005D;
}
result = true;
}
}
}
