Need Help

[wazofski]

I have a little box called: Box1. If you press the "START" Button the backcolor of the box will change in a random color of: Red, Blue, Yellow Or Green. But how can I do that? So it will random pick a color.

[Xav]

First, load up the START button's click event handler. Then, use System.Random.

First, you create a new random object:

Dim r As New System.Random(Now.Millisecond)

Then, to choose a random number between 1 and 4:

Dim i As Integer = r.Next(1,5)

Note we use '5' and not '4'. This is because the upper bound is exclusive, so it means "everything below the upper number. This does not apply to the lower number.

Then, use a select case statement:

Select Case i

  Case 1
    Box1.BackColor = Color.Red
  End Case

  Case 2
    Box1.BackColor = Color.Blue
  End Case

Case 3
    Box1.BackColor = Color.Yellow
  End Case

  Case 4
    Box1.BackColor = Color.Green
  End Case

End Select

I think that's how you do it in VB. I'm more used to C#, so it might not be exactly how you do Select Case statements.

[wazofski]

Thank you very much, I got it now and it works

[Xav]

Great! I'm glad to be of assistance. And if you thought I was helpful, click the little icon of the scales above my post on the right, to add to my reputation. Ta!

[wazofski]

And how would I do that with instead of one box with 4 boxes?

EDIT:

NVM already have it :P

[Xav]

You mean every box has the same colour, or every box has its own randomised colour?

And also, consider that some boxes may get the same colour as each other. Does this matter to you, as if it does, we will need lots of extra code to make sure!

[wazofski]

Erm another thing I need to know. I'm making the game: Mastermind with vb, but I got a few panels with colors and when you click it then the colors in the left panel will get that color you clicked. But I know how to set the colors, but when one of those boxes already has a color and you click it then the next box will get that color you clicked etc.

Few notes to screen:
- Top Panel is the random colors, the code you need to guess.
- Under that top panel, are the boxes that will get the color if you press a color at the right panel, to gues the code.

[Xav]

Use an If statement. If the box isn't white, move to the next one.

[wazofski]

It doenst work with the IF statements, because when I press a color all the white boxes will be filled.

[Xav]

What's it supposed to do, then?