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Implemented equality operators.

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the_fiddler 2010-10-28 08:41:48 +00:00
parent 22ae245306
commit 20ecd2232d
1 changed files with 75 additions and 0 deletions
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75
Source/OpenTK/Input/KeyboardState.cs
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@ -84,6 +84,81 @@ namespace OpenTK.Input
return !ReadBit((int)key);
}
/// <summary>
/// Checks whether two <see cref="KeyboardState" /> instances are equal.
/// </summary>
/// <param name="left">
/// A <see cref="KeyboardState"/> instance.
/// </param>
/// <param name="right">
/// A <see cref="KeyboardState"/> instance.
/// </param>
/// <returns>
/// True if both left is equal to right; false otherwise.
/// </returns>
public static bool operator ==(KeyboardState left, KeyboardState right)
{
return left.Equals(right);
}
/// <summary>
/// Checks whether two <see cref="KeyboardState" /> instances are not equal.
/// </summary>
/// <param name="left">
/// A <see cref="KeyboardState"/> instance.
/// </param>
/// <param name="right">
/// A <see cref="KeyboardState"/> instance.
/// </param>
/// <returns>
/// True if both left is not equal to right; false otherwise.
/// </returns>
public static bool operator !=(KeyboardState left, KeyboardState right)
{
return !left.Equals(right);
}
/// <summary>
/// Compares to an object instance for equality.
/// </summary>
/// <param name="obj">
/// The <see cref="System.Object"/> to compare to.
/// </param>
/// <returns>
/// True if this instance is equal to obj; false otherwise.
/// </returns>
public override bool Equals(object obj)
{
if (obj is KeyboardState)
{
return this == (KeyboardState)obj;
}
else
{
return false;
}
}
/// <summary>
/// Generates a hashcode for the current instance.
/// </summary>
/// <returns>
/// A <see cref="System.Int32"/> represting the hashcode for this instance.
/// </returns>
public override int GetHashCode()
{
unsafe
{
fixed (int* k = Keys)
{
int hashcode = 0;
for (int i = 0; i < NumInts; i++)
hashcode ^= (k + i)->GetHashCode();
return hashcode;
}
}
}
#endregion
#region Internal Members