#region License
#endregion
#region Using Statements
using System;
#endregion
namespace Microsoft.Xna.Framework.Graphics.PackedVector
{
public struct NormalizedShort2 : IPackedVector<uint>, IEquatable<NormalizedShort2>
{
#region Public Properties
[CLSCompliant(false)]
public uint PackedValue
{
get
{
return packedValue;
}
set
{
packedValue = value;
}
}
#endregion
#region Private Variables
private uint packedValue;
#endregion
#region Public Constructors
public NormalizedShort2(Vector2 vector)
{
packedValue = Pack(vector.X, vector.Y);
}
public NormalizedShort2(float x, float y)
{
packedValue = Pack(x, y);
}
#endregion
#region Public Methods
public Vector2 ToVector2()
{
const float maxVal = 0x7FFF;
return new Vector2(
((short) (packedValue & 0xFFFF)) / maxVal,
((short) (packedValue >> 0x10)) / maxVal
);;
}
#endregion
#region IPackedVector Methods
void IPackedVector.PackFromVector4(Vector4 vector)
{
packedValue = Pack(vector.X, vector.Y);
}
Vector4 IPackedVector.ToVector4()
{
const float maxVal = 0x7FFF;
return new Vector4(
((short) ((packedValue >> 0x00) & 0xFFFF)) / maxVal,
((short) ((packedValue >> 0x10) & 0xFFFF)) / maxVal,
0,
1
);
}
#endregion
#region Public Static Operators and Override Methods
public static bool operator !=(NormalizedShort2 a, NormalizedShort2 b)
{
return !a.Equals(b);
}
public static bool operator ==(NormalizedShort2 a, NormalizedShort2 b)
{
return a.Equals(b);
}
public override bool Equals(object obj)
{
return (obj is NormalizedShort2) && Equals((NormalizedShort2) obj);
}
public bool Equals(NormalizedShort2 other)
{
return packedValue.Equals(other.packedValue);
}
public override int GetHashCode()
{
return packedValue.GetHashCode();
}
public override string ToString()
{
return packedValue.ToString("X");
}
#endregion
#region Private Static Pack Method
private static uint Pack(float vectorX, float vectorY)
{
const float maxPos = 0x7FFF;
const float minNeg = -maxPos;
return (
((uint) ((int) MathHelper.Clamp((float) Math.Round(vectorX * maxPos), minNeg, maxPos) & 0xFFFF)) |
((uint) (((int) MathHelper.Clamp((float) Math.Round(vectorY * maxPos), minNeg, maxPos) & 0xFFFF) << 0x10))
);
}
#endregion
}
}
