A lil C# help

[Huhuh]

-snip-

Thanks, that really helped.

After a quick play, I've got my player sprite moving across the screen by itself. I'll simply have to write the appropriate methods for controlling it.

---

[Huhuh]

Hey guys, another question:

How to do read and write to a text file from resource?
I have already created and populated the text file, and I have added it to my program. I'm just having trouble figuring out how to access it.

edit:

Code:

/// <summary>
        /// Loads the high scores from a resource file
        /// </summary>
        public void LoadScores()
        {

            StreamReader reader = new StreamReader(Assembly.GetExecutingAssembly().GetManifestResourceStream(SpaceInvaders.Properties.Resources.hiscores));

            string line;
            string[] fileArray;

            while (!reader.EndOfStream)
            {
                line = reader.ReadLine();
                fileArray = line.Split(','); // splits the information from the csv file by commas

                string name = fileArray[0];
                int score = int.Parse(fileArray[1]);

                Score s = new Score(name, score);
                scoresList.Add(s);
                listBoxScores.Items.Add(s.GetScore());
                Debug.WriteLine(s.GetScore());
            }//while
          
            
            reader.Close();
        }

This is my code as it is, I'm being thrown this error in the output window:
A first chance exception of type 'System.ArgumentNullException' occurred in mscorlib.dll

My thinking is the file not being read in correctly.

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[Huhuh]

Hey guys, new issue:

Where do I find the keydown/press/up for the arrow keys? Do I need some sort of listener or can I just have an event on my form that triggers when an arrow key is pressed?

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[Stuffz]

Google helps a lot.
http://msdn.microsoft.com/en-us/library/ms171538.aspx

[Huhuh]

Google helps a lot.
http://msdn.microsoft.com/en-us/library/ms171538.aspx

Does not show how to use arrow keys.

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[Stuffz]

Another 5 seconds google..
http://www.dreamincode.net/forums/topic/...rrow-keys/

If e.KeyCode = Keys.Up Then
MessageBox.Show("It worked")

You'll have to use KeyDown for arrow keys tho

[Huhuh]

Another 5 seconds google..
http://www.dreamincode.net/forums/topic/...rrow-keys/

If e.KeyCode = Keys.Up Then
MessageBox.Show("It worked")

You'll have to use KeyDown for arrow keys tho

That is VB, and it appears that the syntax is different.

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[Ichiru]

Try this Crackpunch

In Form1() or whatever your constructor is called
this.KeyDown += HandleKeyDown;

void HandleKeyDown (object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.Up) {
//do stuff here
}
}

Also for your high scores use a file instead of a resource, you can't write to a resource. Also make sure that scoresList has been set somewhere. So in Form1() Or Form1_Load etc. make sure there is a line that says scoresList = new List<string>();

Add me on skype at crazy.ichiru if you want any more help. I've got enough experience

---

Acolyte of NoMe

[Huhuh]

I fixed the high scores file a while ago.

The key presses still aren't working. I'm thinking it might have something to do with my listbox on the form, as I can see it selecting things while I'm actually trying to steer my space ship.

I'll skype ya later, off to bed now.

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[Stuffz]

Alright. So I opened VS myself and coded a bit.

This works for me:

Code:

void Form1_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.KeyCode == Keys.Left)
            {
                MessageBox.Show("Form.KeyPress: '" +
                    e.KeyCode.ToString() + "' pressed.");

            }
       }

And this in the constructor of the form:

Code:

this.KeyPreview = true;
this.KeyDown+=
                new KeyEventHandler(Form1_KeyDown);