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Merge pull request #181 from extrahotchilipowder/monogame-sdl2
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[FNA] #146 - adding regions to ./
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@flibitijibibo
flibitijibibo committed Mar 27, 2014
2 parents 6597891 + 31be808 commit 02957f8
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Showing 40 changed files with 3,573 additions and 3,061 deletions.
183 changes: 97 additions & 86 deletions MonoGame.Framework/BoundingBox.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -35,17 +35,18 @@ Olivier Dufour (Duff)
*/
#endregion

#region Using Statements
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Runtime.Serialization;
#endregion

namespace Microsoft.Xna.Framework
{
[DataContract]
public struct BoundingBox : IEquatable<BoundingBox>
{

#region Public Fields

[DataMember]
Expand All @@ -56,8 +57,14 @@ public struct BoundingBox : IEquatable<BoundingBox>

public const int CornerCount = 8;

#endregion Public Fields
#endregion

#region Private Static Variables

private static readonly Vector3 MaxVector3 = new Vector3(float.MaxValue);
private static readonly Vector3 MinVector3 = new Vector3(float.MinValue);

#endregion

#region Public Constructors

Expand All @@ -67,8 +74,7 @@ public BoundingBox(Vector3 min, Vector3 max)
this.Max = max;
}

#endregion Public Constructors

#endregion

#region Public Methods

Expand Down Expand Up @@ -258,82 +264,6 @@ public void Contains(ref Vector3 point, out ContainmentType result)
result = ContainmentType.Contains;
}

private static readonly Vector3 MaxVector3 = new Vector3(float.MaxValue);
private static readonly Vector3 MinVector3 = new Vector3(float.MinValue);

/// <summary>
/// Create a bounding box from the given list of points.
/// </summary>
/// <param name="points">The list of Vector3 instances defining the point cloud to bound</param>
/// <returns>A bounding box that encapsulates the given point cloud.</returns>
/// <exception cref="System.ArgumentException">Thrown if the given list has no points.</exception>
public static BoundingBox CreateFromPoints(IEnumerable<Vector3> points)
{
if (points == null)
throw new ArgumentNullException();

var empty = true;
var minVec = MaxVector3;
var maxVec = MinVector3;
foreach (var ptVector in points)
{
minVec.X = (minVec.X < ptVector.X) ? minVec.X : ptVector.X;
minVec.Y = (minVec.Y < ptVector.Y) ? minVec.Y : ptVector.Y;
minVec.Z = (minVec.Z < ptVector.Z) ? minVec.Z : ptVector.Z;

maxVec.X = (maxVec.X > ptVector.X) ? maxVec.X : ptVector.X;
maxVec.Y = (maxVec.Y > ptVector.Y) ? maxVec.Y : ptVector.Y;
maxVec.Z = (maxVec.Z > ptVector.Z) ? maxVec.Z : ptVector.Z;

empty = false;
}
if (empty)
throw new ArgumentException();

return new BoundingBox(minVec, maxVec);
}

public static BoundingBox CreateFromSphere(BoundingSphere sphere)
{
BoundingBox result;
CreateFromSphere(ref sphere, out result);
return result;
}

public static void CreateFromSphere(ref BoundingSphere sphere, out BoundingBox result)
{
var corner = new Vector3(sphere.Radius);
result.Min = sphere.Center - corner;
result.Max = sphere.Center + corner;
}

public static BoundingBox CreateMerged(BoundingBox original, BoundingBox additional)
{
BoundingBox result;
CreateMerged(ref original, ref additional, out result);
return result;
}

public static void CreateMerged(ref BoundingBox original, ref BoundingBox additional, out BoundingBox result)
{
result.Min.X = Math.Min(original.Min.X, additional.Min.X);
result.Min.Y = Math.Min(original.Min.Y, additional.Min.Y);
result.Min.Z = Math.Min(original.Min.Z, additional.Min.Z);
result.Max.X = Math.Max(original.Max.X, additional.Max.X);
result.Max.Y = Math.Max(original.Max.Y, additional.Max.Y);
result.Max.Z = Math.Max(original.Max.Z, additional.Max.Z);
}

public bool Equals(BoundingBox other)
{
return (this.Min == other.Min) && (this.Max == other.Max);
}

public override bool Equals(object obj)
{
return (obj is BoundingBox) ? this.Equals((BoundingBox)obj) : false;
}

public Vector3[] GetCorners()
{
return new Vector3[] {
Expand Down Expand Up @@ -384,11 +314,6 @@ public void GetCorners(Vector3[] corners)
corners[7].Z = this.Min.Z;
}

public override int GetHashCode()
{
return this.Min.GetHashCode() + this.Max.GetHashCode();
}

public bool Intersects(BoundingBox box)
{
bool result;
Expand Down Expand Up @@ -531,6 +456,92 @@ public void Intersects(ref Ray ray, out Nullable<float> result)
result = Intersects(ray);
}

public bool Equals(BoundingBox other)
{
return (this.Min == other.Min) && (this.Max == other.Max);
}

#endregion

#region Public Static Methods

/// <summary>
/// Create a bounding box from the given list of points.
/// </summary>
/// <param name="points">The list of Vector3 instances defining the point cloud to bound</param>
/// <returns>A bounding box that encapsulates the given point cloud.</returns>
/// <exception cref="System.ArgumentException">Thrown if the given list has no points.</exception>
public static BoundingBox CreateFromPoints(IEnumerable<Vector3> points)
{
if (points == null)
throw new ArgumentNullException();

var empty = true;
var minVec = MaxVector3;
var maxVec = MinVector3;
foreach (var ptVector in points)
{
minVec.X = (minVec.X < ptVector.X) ? minVec.X : ptVector.X;
minVec.Y = (minVec.Y < ptVector.Y) ? minVec.Y : ptVector.Y;
minVec.Z = (minVec.Z < ptVector.Z) ? minVec.Z : ptVector.Z;

maxVec.X = (maxVec.X > ptVector.X) ? maxVec.X : ptVector.X;
maxVec.Y = (maxVec.Y > ptVector.Y) ? maxVec.Y : ptVector.Y;
maxVec.Z = (maxVec.Z > ptVector.Z) ? maxVec.Z : ptVector.Z;

empty = false;
}
if (empty)
throw new ArgumentException();

return new BoundingBox(minVec, maxVec);
}

public static BoundingBox CreateFromSphere(BoundingSphere sphere)
{
BoundingBox result;
CreateFromSphere(ref sphere, out result);
return result;
}

public static void CreateFromSphere(ref BoundingSphere sphere, out BoundingBox result)
{
var corner = new Vector3(sphere.Radius);
result.Min = sphere.Center - corner;
result.Max = sphere.Center + corner;
}

public static BoundingBox CreateMerged(BoundingBox original, BoundingBox additional)
{
BoundingBox result;
CreateMerged(ref original, ref additional, out result);
return result;
}

public static void CreateMerged(ref BoundingBox original, ref BoundingBox additional, out BoundingBox result)
{
result.Min.X = Math.Min(original.Min.X, additional.Min.X);
result.Min.Y = Math.Min(original.Min.Y, additional.Min.Y);
result.Min.Z = Math.Min(original.Min.Z, additional.Min.Z);
result.Max.X = Math.Max(original.Max.X, additional.Max.X);
result.Max.Y = Math.Max(original.Max.Y, additional.Max.Y);
result.Max.Z = Math.Max(original.Max.Z, additional.Max.Z);
}

#endregion

#region Public Static Operators and Override Methods

public override bool Equals(object obj)
{
return (obj is BoundingBox) ? this.Equals((BoundingBox)obj) : false;
}

public override int GetHashCode()
{
return this.Min.GetHashCode() + this.Max.GetHashCode();
}

public static bool operator ==(BoundingBox a, BoundingBox b)
{
return a.Equals(b);
Expand All @@ -546,6 +557,6 @@ public override string ToString()
return string.Format("{{Min:{0} Max:{1}}}", this.Min.ToString(), this.Max.ToString());
}

#endregion Public Methods
#endregion
}
}
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