#region License
#endregion
#region Using Statements
using System;
#endregion
namespace Microsoft.Xna.Framework.Graphics.PackedVector
{
public struct NormalizedByte2 : IPackedVector<ushort>, IEquatable<NormalizedByte2>
{
#region Public Properties
[CLSCompliant(false)]
public ushort PackedValue
{
get
{
return packedValue;
}
set
{
packedValue = value;
}
}
#endregion
#region Private Variables
private ushort packedValue;
#endregion
#region Public Constructors
public NormalizedByte2(Vector2 vector)
{
packedValue = Pack(vector.X, vector.Y);
}
public NormalizedByte2(float x, float y)
{
packedValue = Pack(x, y);
}
#endregion
#region Public Methods
public Vector2 ToVector2()
{
return new Vector2(
((sbyte) (packedValue & 0xFF)) / 127.0f,
((sbyte) ((packedValue >> 8) & 0xFF)) / 127.0f
);
}
#endregion
#region IPackedVector Methods
void IPackedVector.PackFromVector4(Vector4 vector)
{
packedValue = Pack(vector.X, vector.Y);
}
Vector4 IPackedVector.ToVector4()
{
return new Vector4(ToVector2(), 0.0f, 1.0f);
}
#endregion
#region Public Static Operators and Override Methods
public static bool operator !=(NormalizedByte2 a, NormalizedByte2 b)
{
return a.packedValue != b.packedValue;
}
public static bool operator ==(NormalizedByte2 a, NormalizedByte2 b)
{
return a.packedValue == b.packedValue;
}
public override bool Equals(object obj)
{
return (obj is NormalizedByte2) && Equals((NormalizedByte2) obj);
}
public bool Equals(NormalizedByte2 other)
{
return packedValue == 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 ushort Pack(float x, float y)
{
return (ushort) (
((((ushort) (MathHelper.Clamp(x, -1.0f, 1.0f) * 127.0f)) << 0) & 0x00FF) |
((((ushort) (MathHelper.Clamp(y, -1.0f, 1.0f) * 127.0f)) << 8) & 0xFF00)
);
}
#endregion
}
}
