CODEWITHSUNDEEP
vb.net
eren230
eren230

Reputation: 1

VB.Net - How do I find the position of several elements in an array where a condition is met

I'm a newbie programmer, and right now I'm creating a backgammon game in VB (a simple version right now which will be built up overtime).

I am trying to get the game to record how many checkers a player has, and where these checkers are on the board. The white checkers are represented as negative integers and black checkers as positive integers. Once this is done the player would be able to select which checker to move and where depending on their dice roll.

So my question is, how would I be able to record the element position in an array, for example, when the array is checked for values where the value is > 0 for the white checker player. I'll add my code for this section - sorry if my coding is poorly executed.

If possible dumb down the advice haha

Console.WriteLine("Make your first move: ")
For Each x In Gameboard
    If x > 0 Then
        Console.WriteLine("You have {0} pieces in position ", x)
    End If
Next

Upvotes: 0

Views: 163

Answers (1)

Steven Doggart
Steven Doggart

Reputation: 43743

You could, create a counter variable, above your loop, and increment it in each iteration, but that's a bit ugly. The preferable way to do it is to use a plain For loop, with a counter, rather than a For Each loop. For instance:

Console.WriteLine("Make your first move: ")
For i As Integer = 0 To Gameboard.Length
    If Gameboard(i) > 0 Then
        Console.WriteLine("You have {0} pieces in position {1}", Gameboard(i), i)
    End If
Next

General rule of thumb:

  • If you need to know the index, use a For loop
  • If you don't need to know the index, use a For Each loop

Upvotes: 1

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