XNA Extension Methods

Here I am going to gather the extensionmethods I come up with during my XNA coding.
There are probably other coders out there who have come up with similar code, but usually when I get the idea it's faster to just write the method than to go Googling :) .

There are other sites out there with extensionmethods for XNA - XNAWiki is one of them.
Nick Gravelyn has a collection of extension methods on Codeplex for download as well.
I also add my extensionmethods to the XNAWiki, but I also like to add some comments and sample usage, which I can do here.

You can Downloaddownload them as a Windows Game Library with a project that displays some of the methods in use.

MouseState extensionmethods

/// <summary>
/// Returns the mouseposition as a Vector2
/// </summary>
/// <param name="mouse">The current MouseState</param>
/// <returns>The mouseposition as a Vector2</returns>
public static Vector2 GetPosition(this MouseState mouse)
{
    return new Vector2(mouse.X, mouse.Y);
}

Sample usage 1:

//displays the mouse's position on screen
spriteBatch.DrawString(defaultFont,
                                "Mouseposition: " + mouseState.GetPosition(),
                                mouseState.GetPosition(), Color.White);

Sample usage 2:

//displays a custom mousecursor (here a Texture2D)
spriteBatch.Draw(txt2DcustomCursor,
                        mouseState.GetPosition(),
                        Color.White);

Viewport extensionmethods

/// <summary>
/// Gets the center of the Viewport
/// </summary>
/// <param name="viewPort">The Viewport to get the center of</param>
/// <returns>The center of the Viewport</returns>
public static Vector2 GetCenter(this Viewport viewPort)
{
    return new Vector2(viewPort.Width / 2, viewPort.Height / 2);
}

Sample usage 1:

//centers a string onscreen
string strCenter = "CENTER";
Vector2 textSize = defaultFont.MeasureString(strCenter);
spriteBatch.DrawString(defaultFont, //font to use
                                strCenter,   //what to write
                                graphics.GraphicsDevice.Viewport.GetCenter() - textSize / 2,
                                Color.White);

Texture2D extensionmethods

/// <summary>
/// Returns the size of the Texture2D as a Vector2
/// </summary>
/// <param name="texture">The texture to get the size of</param>
/// <returns>The size of the Texture2D as a Vector2</returns>
public static Vector2 GetSize(this Texture2D texture)
{
    return new Vector2(texture.Width, texture.Height);
}

Sample usage 1:

//Centers a Texture2D on screen
spriteBatch.Draw(texture,
                        graphics.GraphicsDevice.Viewport.GetCenter() - texture.GetSize() / 2,
                        Color.White);