C# XNA - Klicka på en SpriteFont

using System;
using System.Collections.Generic;
using System.Linq;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Audio;
using Microsoft.Xna.Framework.Content;
using Microsoft.Xna.Framework.GamerServices;
using Microsoft.Xna.Framework.Graphics;
using Microsoft.Xna.Framework.Input;
using Microsoft.Xna.Framework.Media;

namespace CollisionTextTest
{
    /// <summary>
    /// This is the main type for your game
    /// </summary>
    public class Game1 : Microsoft.Xna.Framework.Game
    {
        GraphicsDeviceManager graphics;
        SpriteBatch spriteBatch;
        SpriteFont font;
        Vector2 FontPos;
        private int _characterFeet;
        private string _MoreText = "Jag ar en text";
        private int _pixelWidth;
        private bool _displayWarning;

        public Game1()
        {
            graphics = new GraphicsDeviceManager(this);
            Content.RootDirectory = "Content";
        }

        /// <summary>
        /// Allows the game to perform any initialization it needs to before starting to run.
        /// This is where it can query for any required services and load any non-graphic
        /// related content.  Calling base.Initialize will enumerate through any components
        /// and initialize them as well.
        /// </summary>
        protected override void Initialize()
        {
            // TODO: Add your initialization logic here
            FontPos = new Vector2(20f, 20f);
            this.IsMouseVisible = true;
            this._displayWarning = false;
            this._characterFeet = 0;
            base.Initialize();
        }

        /// <summary>
        /// LoadContent will be called once per game and is the place to load
        /// all of your content.
        /// </summary>
        protected override void LoadContent()
        {
            // Create a new SpriteBatch, which can be used to draw textures.
            spriteBatch = new SpriteBatch(GraphicsDevice);
            font = Content.Load<SpriteFont>("Text");
            
            // TODO: use this.Content to load your game content here
        }

        /// <summary>
        /// UnloadContent will be called once per game and is the place to unload
        /// all content.
        /// </summary>
        protected override void UnloadContent()
        {
            // TODO: Unload any non ContentManager content here
        }

        /// <summary>
        /// Allows the game to run logic such as updating the world,
        /// checking for collisions, gathering input, and playing audio.
        /// </summary>
        /// <param name="gameTime">Provides a snapshot of timing values.</param>
        protected override void Update(GameTime gameTime)
        {
            // Allows the game to exit
            if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed)
                this.Exit();

            _pixelWidth = (this._MoreText.Length * 14) - Convert.ToInt32(FontPos.X) ;
            _characterFeet = 14 + Convert.ToInt32(FontPos.Y);

            if (Mouse.GetState().Y >= FontPos.Y && Mouse.GetState().Y <= _characterFeet && Mouse.GetState().X > FontPos.X && Mouse.GetState().X < this._pixelWidth)
            {
                _displayWarning = true;
            }
            else
            {
                _displayWarning = false;
            }

            // TODO: Add your update logic here

            base.Update(gameTime);
        }

        /// <summary>
        /// This is called when the game should draw itself.
        /// </summary>
        /// <param name="gameTime">Provides a snapshot of timing values.</param>
        protected override void Draw(GameTime gameTime)
        {
            GraphicsDevice.Clear(Color.CornflowerBlue);
            spriteBatch.Begin();
            spriteBatch.DrawString(this.font, this._MoreText, FontPos, Color.White);
            spriteBatch.DrawString(this.font, string.Format("{0}f X, {1}f Y\nAssumed width: {2}f X\nAssumed height: {3} and {4}", Mouse.GetState().X, Mouse.GetState().Y, _pixelWidth, _characterFeet, FontPos.Y), new Vector2(20f, 120f), Color.White);

            if (this._displayWarning)
            {
                spriteBatch.DrawString(this.font, "Collision detected", new Vector2(this.graphics.PreferredBackBufferHeight / 2, this.graphics.PreferredBackBufferWidth / 2), Color.Red);
            }
            spriteBatch.End();
            // TODO: Add your drawing code here


            base.Draw(gameTime);
        }
    }
}

using System;
using System.Collections.Generic;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using Microsoft.Xna.Framework.Input;

namespace CollisionTextTest
{
    public class Game1 : Microsoft.Xna.Framework.Game
    {
        private SomeRandomClass operations = new SomeRandomClass();
        GraphicsDeviceManager graphics;
        SpriteBatch spriteBatch;
        private SpriteFont font;

        public Game1()
        {
            graphics = new GraphicsDeviceManager(this);
            Content.RootDirectory = "Content";
        }

        protected override void Initialize()
        {
            this.IsMouseVisible = true;
            base.Initialize();
        }

        protected override void LoadContent()
        {
            spriteBatch = new SpriteBatch(GraphicsDevice);
            font = Content.Load<SpriteFont>("Text");
            operations.Add(new MyAlternateSpriteFontClass{ Font = font, Color = Color.White, Position = new Vector2(20f, 20f), Text = "Bara testar" });
        }

        protected void UnloadContents()
        {

        }

        protected override void Update(GameTime gameTime)
        {
            operations.Update();
            base.Update(gameTime);
        }

        protected override void Draw(GameTime gameTime)
        {
            GraphicsDevice.Clear(Color.CornflowerBlue);
            spriteBatch.Begin();
            operations.Draw(spriteBatch);
            spriteBatch.End();

            base.Draw(gameTime);
        }
    }
}

public class SomeRandomClass
{
    private List<MyAlternateSpriteFontClass> FontCollection = new List<MyAlternateSpriteFontClass>();

    public void Add(MyAlternateSpriteFontClass newObj)
    {
        FontCollection.Add(newObj);
    }

    public void Draw(SpriteBatch batch)
    {
        foreach (MyAlternateSpriteFontClass spriteFont in this.FontCollection)
        {
            spriteFont.Draw(batch);
        }
    }

    public void Update()
    {
        foreach (MyAlternateSpriteFontClass spriteFont in this.FontCollection)
        {
            spriteFont.Update();
        }
    }
}

public class MyAlternateSpriteFontClass
{
    /// <summary>
    /// SpriteFont
    /// </summary>
    public SpriteFont Font { private get; set; }
    /// <summary>
    /// Text som du vill ska synas
    /// </summary>
    public string Text { private get; set; }
    /// <summary>
    /// Textfärg
    /// </summary>
    public Color Color { private get; set; }
    /// <summary>
    /// Position för att placera text på skärmen
    /// </summary>
    public Vector2 Position { private get; set; }
    /// <summary>
    /// Avgör om kollision mellan mus och text har skett
    /// </summary>
    private bool Intersected { get; set; }

    /// <summary>
    /// Kontrollerar kollisionshanteringen
    /// Kollisionskrav: Mustryckning på och mouse-hover på texten
    /// </summary>
    public void Update()
    {
        if (Mouse.GetState().Y >= Position.Y && 
            Mouse.GetState().Y <= (Font.MeasureString(this.Text).Y + this.Position.Y) && 
            Mouse.GetState().X >= Position.X && 
            Mouse.GetState().X <= (this.Font.MeasureString(this.Text).X + this.Position.X) && 
            Mouse.GetState().LeftButton == ButtonState.Pressed)
        {
            this.Intersected = true;
        }
        else
        {
            this.Intersected = false;
        }
    }

    /// <summary>
    /// Skriver ut texten till klienten
    /// </summary>
    /// <param name="batch">SpriteBatch</param>
    public void Draw(SpriteBatch batch)
    {
        try
        {
            //kolla om röd text ska skrivas (vi har kolliderat eller inte)
            if (this.Intersected)
            {
                batch.DrawString(this.Font, this.Text, this.Position, Color.Red);
            }
            //Om inte skriv den vanliga definierade färgen
            else
            {
                batch.DrawString(this.Font, this.Text, this.Position, this.Color);
            }
        }
        catch (InvalidOperationException)
        {
            throw;
        }
        catch (Exception)
        {
            throw;
        }
    }
}