Scratch

You could have a list with nine entries- each one signifying a space on the board.  At first all nine entries can be stated as "open", so you would have nine "open" entries in the list.  Also include a variable called "turn" and set it to 1 when the green flag is clicked.

If you are newer to programming, the easiest way to define an area you can place a nought or cross on would be to have nine sprites occupying the places you can click.  Such as Sprite1 occupying the top left space.

Then you can include a script like this:

If Sprite1 clicked
     If item 1 of spaces = open
          If Turn = 1
               replace item 1 of spaces with nought
               set turn to (3-turn)
          else
               replace item 1 of spaces with cross
               set turn to (3-turn)
          switch to costume (item 1 of spaces)

Click here for a visual of the above script

Give Sprite 1 three costumes- one blank named open, one with a nought, and one with a cross, and have it switch to item 1 of spaces.

The same can be repeated for each space.  The "turn" variable decides whose turn it is- the person placing a nought or a cross.

Last edited by Kileymeister_test (2012-01-06 15:11:18)

RedRocker227 wrote:

schusteralex2 wrote:

So, is this like tic tac toe

Yes, noughts and crosses is what we call it in UK 

ok

markdad wrote:

Thanks, that's really helpful, but I don't see the red block containing "replace" anywhere in Scratch.  I'll write out the rules and have a go in the next few days

It's under variables, near the bottom.

My-chemical-romance has made noughts and crosses, not advertising it or anything, but you could open that and see how it's done. There's the list method too, but that's complicated if you're fairly new.