Do you know any chess move validation library for ActionScript 3 ? I have searched in google but I can not find anything. Please tell me if you know.
If there isn't any library, I think that I have to port from Java to AS3.
I think I'd just write it because it is going to end up very tightly bound to your game/position representation.
Think about it: ust legal moves, or move validation in game context (50-move rule, 3-time repeated position, en-passant, promoted pieces, castling availability...?).
You might even have to pass the entire move history for the game.
It is not that much work if you think about it.