anx.framework/ANX.Framework/BoundingSphere.cs
2011-10-31 05:36:24 +00:00

260 lines
10 KiB
C#

#region Using Statements
using System;
using System.Collections.Generic;
#endregion // Using Statements
#region License
//
// This file is part of the ANX.Framework created by the "ANX.Framework developer group".
//
// This file is released under the Ms-PL license.
//
//
//
// Microsoft Public License (Ms-PL)
//
// This license governs use of the accompanying software. If you use the software, you accept this license.
// If you do not accept the license, do not use the software.
//
// 1.Definitions
// The terms "reproduce," "reproduction," "derivative works," and "distribution" have the same meaning
// here as under U.S. copyright law.
// A "contribution" is the original software, or any additions or changes to the software.
// A "contributor" is any person that distributes its contribution under this license.
// "Licensed patents" are a contributor's patent claims that read directly on its contribution.
//
// 2.Grant of Rights
// (A) Copyright Grant- Subject to the terms of this license, including the license conditions and limitations
// in section 3, each contributor grants you a non-exclusive, worldwide, royalty-free copyright license to
// reproduce its contribution, prepare derivative works of its contribution, and distribute its contribution
// or any derivative works that you create.
// (B) Patent Grant- Subject to the terms of this license, including the license conditions and limitations in
// section 3, each contributor grants you a non-exclusive, worldwide, royalty-free license under its licensed
// patents to make, have made, use, sell, offer for sale, import, and/or otherwise dispose of its contribution
// in the software or derivative works of the contribution in the software.
//
// 3.Conditions and Limitations
// (A) No Trademark License- This license does not grant you rights to use any contributors' name, logo, or trademarks.
// (B) If you bring a patent claim against any contributor over patents that you claim are infringed by the software, your
// patent license from such contributor to the software ends automatically.
// (C) If you distribute any portion of the software, you must retain all copyright, patent, trademark, and attribution
// notices that are present in the software.
// (D) If you distribute any portion of the software in source code form, you may do so only under this license by including
// a complete copy of this license with your distribution. If you distribute any portion of the software in compiled or
// object code form, you may only do so under a license that complies with this license.
// (E) The software is licensed "as-is." You bear the risk of using it. The contributors give no express warranties, guarantees,
// or conditions. You may have additional consumer rights under your local laws which this license cannot change. To the
// extent permitted under your local laws, the contributors exclude the implied warranties of merchantability, fitness for a
// particular purpose and non-infringement.
#endregion // License
namespace ANX.Framework
{
public struct BoundingSphere : IEquatable<BoundingSphere>
{
#region fields
public Vector3 Center;
public float Radius;
#endregion
#region constructors
public BoundingSphere(Vector3 center, float radius)
{
this.Center = center;
this.Radius = radius;
}
#endregion
#region public methods
public ContainmentType Contains(BoundingBox box)
{
ContainmentType result;
this.Contains(ref box, out result);
return result;
}
public void Contains(ref BoundingBox box, out ContainmentType result)
{
byte value = 0;
if (Vector3.DistanceSquared(box.Max, this.Center) < this.Radius * this.Radius)
{
value++;
}
if (Vector3.DistanceSquared(box.Min, this.Center) < this.Radius * this.Radius)
{
value++;
}
result = value == 0 ? ContainmentType.Disjoint : value == 1 ? ContainmentType.Intersects : ContainmentType.Contains;
}
public ContainmentType Contains(BoundingFrustum frustum)
{
ContainmentType result;
this.Contains(ref frustum, out result);
return result;
}
public ContainmentType Contains(ref BoundingFrustum frustum, out ContainmentType result)
{
throw new Exception("method has not yet been implemented");
}
public ContainmentType Contains(BoundingSphere sphere)
{
ContainmentType result;
this.Contains(ref sphere, out result);
return result;
}
public void Contains(ref BoundingSphere sphere, out ContainmentType result)
{
float distance = Vector3.Distance(this.Center, sphere.Center);
float bothRadius = this.Radius + sphere.Radius;
if (distance > bothRadius)
{
result = ContainmentType.Disjoint;
return;
}
if (distance + sphere.Radius < this.Radius)
{
result = ContainmentType.Contains;
return;
}
result = ContainmentType.Intersects;
}
public ContainmentType Contains(Vector3 point)
{
ContainmentType result;
this.Contains(ref point, out result);
return result;
}
public void Contains(ref Vector3 point, out ContainmentType result)
{
float distance = Vector3.DistanceSquared(point, this.Center);
if (distance > this.Radius*this.Radius)
result= ContainmentType.Disjoint;
else if (distance < this.Radius * this.Radius)
result= ContainmentType.Contains;
result= ContainmentType.Intersects;
}
public static BoundingSphere CreateFromBoundingBox(BoundingBox box)
{
throw new Exception("method has not yet been implemented");
}
public static void CreateFromBoundingBox(ref BoundingBox box, out BoundingSphere result)
{
throw new Exception("method has not yet been implemented");
}
public static BoundingSphere CreateFromFrustum(BoundingFrustum frustum)
{
throw new Exception("method has not yet been implemented");
}
public static BoundingSphere CreateFromPoints(IEnumerable<Vector3> points)
{
throw new Exception("method has not yet been implemented");
}
public static BoundingSphere CreateMerged(BoundingSphere original, BoundingSphere additional)
{
throw new Exception("method has not yet been implemented");
}
public static void CreateMerged(ref BoundingSphere original, ref BoundingSphere additional, out BoundingSphere result)
{
throw new Exception("method has not yet been implemented");
}
public override int GetHashCode()
{
throw new Exception("method has not yet been implemented");
}
public bool Intersects(BoundingBox box)
{
throw new Exception("method has not yet been implemented");
}
public void Intersects(ref BoundingBox box, out bool result)
{
throw new Exception("method has not yet been implemented");
}
public bool Intersects(BoundingFrustum frustum)
{
throw new Exception("method has not yet been implemented");
}
public bool Intersects(BoundingSphere sphere)
{
throw new Exception("method has not yet been implemented");
}
public void Intersects(ref BoundingSphere sphere, out bool result)
{
throw new Exception("method has not yet been implemented");
}
public PlaneIntersectionType Intersects(Plane plane)
{
throw new Exception("method has not yet been implemented");
}
public void Intersects(ref Plane plane, out PlaneIntersectionType result)
{
throw new Exception("method has not yet been implemented");
}
public Nullable<float> Intersects(Ray ray)
{
throw new Exception("method has not yet been implemented");
}
public void Intersects(ref Ray ray, out Nullable<float> result)
{
throw new Exception("method has not yet been implemented");
}
public BoundingSphere Transform(Matrix matrix)
{
throw new NotImplementedException();
}
public void Transform(ref Matrix matrix, out BoundingSphere result)
{
throw new NotImplementedException();
}
public override string ToString()
{
throw new Exception("method has not yet been implemented");
}
#endregion
#region IEquatable implementation
public override bool Equals(Object obj)
{
return (obj is BoundingSphere) ? this.Equals((BoundingSphere)obj) : false;
}
public bool Equals(BoundingSphere other)
{
return this.Center.Equals(other.Center) && this.Radius == other.Radius;
}
#endregion
#region operator overloading
public static bool operator ==(BoundingSphere a, BoundingSphere b)
{
throw new Exception("operator overloading has not yet been implemented");
}
public static bool operator !=(BoundingSphere a, BoundingSphere b)
{
throw new Exception("operator overloading has not yet been implemented");
}
#endregion
}
}