Help with Nuclex.GameControl

October 4th, 2007ideAb

in

Programming

Hi all! First of all, excuse me for my english. I know i've to improve it :)
Second, thanks for releasing you library. It's exactly what I was looking for, but i've a small problem.

Ok, i get that WinForms GameComponent crashes when you use contentManager but.. what do I have to be able to edit the Window itself?

I mean, with your pongproject, you can edit the WinForms, but this is what happens to me:

http://img530.imageshack.us/img530/9917/visualerrorlb4.jpg

Here's the code of the class that inherits Nuclex.GameControl, in case anything is wrong:

using XNAColor = Microsoft.Xna.Framework.Graphics.Color;

using XNARectangle = Microsoft.Xna.Framework.Rectangle;

using Microsoft.Xna.Framework.Graphics;

namespace XBEditor

{

    public partial class DrawComponent : Nuclex.GameControl

    {

        #region Vars

        private ContentManager m_Content;

        private Texture2D m_Texture;

        private SpriteBatch m_Sprite;

        #endregion

        #region User Control Functions

        public DrawComponent()

        {

            InitializeComponent();

            //Init ContentManager

            m_Content = new ContentManager(Services);

        }

        private void DrawComponent_Load(object sender, EventArgs e)

        {

        }

        #endregion

        #region Game Functions (Load,Unload,Draw,Update)

        protected override void LoadGraphicsContent(bool loadAllContent)

        {

            m_Sprite = new SpriteBatch(graphics.GraphicsDevice);

            m_Texture = m_Content.Load("Content/Textures/smiley");

            base.LoadGraphicsContent(loadAllContent);

        }

        protected override void UnloadGraphicsContent(bool unloadAllContent)

        {

            base.UnloadGraphicsContent(unloadAllContent);

        }

        protected override void Draw(Microsoft.Xna.Framework.GameTime gameTime)

        {

            this.graphics.GraphicsDevice.Clear(XNAColor.Cyan);

            m_Sprite.Begin();

            m_Sprite.Draw(m_Texture, new XNARectangle(0, 0, graphics.GraphicsDevice.Viewport.Width, graphics.GraphicsDevice.Viewport.Height), XNAColor.White);

            m_Sprite.End();

            base.Draw(gameTime);

        }

        protected override void Update(Microsoft.Xna.Framework.GameTime gameTime)

        {

            base.Update(gameTime);

        }

        #endregion

    }

}

Thanks for reading ^^

Wrong Working Directory

Submitted by Cygon on Thu, 2007-10-04 20:56.

Hi!

That's easy to explain: When you view your control in the Form Designer, it will have the working directory set to some, well, random place (in this case, probably the path of the last assembly that was loaded).

To work around this, do one of the following:

Explicitly specify the path to your assets when you create the content manager, eg. content = new ContentManager(Services, @"D:\Devel\MyStuff\Xyz");. Of course there's the danger of this little hack slipping into the release build, so maybe it's best used with some check like

if(!Assembly.GetEntryAssembly().FullName.EndsWith("devenv.exe"))
content = new ContentManager(Services, @"D:\Devel\MyStuff\Xyz");
else
content = new ContentManager(Services);
Disable any resource loading (and possibly also drawing) code when your control is shown in the designer. Check Windows.Forms on MSDN, there should be somthing like IsDesignerModeActive() or similar allowing you to notice when your control is being run in the windows forms designer.