How do I create an Mahjong game?

Hello and first, as always, sorry for my english ;)

As the title said, I would like to know how to create an Mahjong game?

There‘s an asset in the store, but only for C3 - I only work with C2.

What I really want to know is, how do i check if an stone is „available“ , so not enclosed by other stones and can be selected.

In best case one of you fabulous guys and/or girls have an complete mahjong-game/engine so I can learn from ;)

Thanks and greetings from Austria

drive.google.com/file/d/1W4LewpH-HBmXeGouX8km5_XlB_ih03JA/view

Something I downloaded from the forums a while ago. I forgot who made it and really couldn't answer questions about it, but I hope this helps.

Okay, thanks. You have to confirm my access request before i can download the file ;)

Thanks! That's exactly what I need (I think) ;)

drive.google.com/file/d/1W4LewpH-HBmXeGouX8km5_XlB_ih03JA/view

Something I downloaded from the forums a while ago. I forgot who made it and really couldn't answer questions about it, but I hope this helps.

Almost everything works fine and I learned a lot - thanks again.

But how could I "check" if there are possible moves left so i can restart or display a "game over" message?