shithub: moonfish

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fix castling

--- a/chess.c

+++ b/chess.c

@@ -86,6 +86,7 @@

 	if (moonfish_check(ctx)) return;

 	if (moonfish_attacked(ctx, from, from - 1)) return;

+	if (moonfish_attacked(ctx, from, from - 2)) return;

 	(*moves)->from = from;

 	(*moves)->to = from - 2;

@@ -106,6 +107,7 @@

 	if (moonfish_check(ctx)) return;

 	if (moonfish_attacked(ctx, from, from + 1)) return;

+	if (moonfish_attacked(ctx, from, from + 2)) return;

 	(*moves)->from = from;

 	(*moves)->to = from + 2;

@@ -310,10 +312,10 @@

 	if (move->piece == moonfish_our_king)

 	{

 		x0 = 0;

-		if (move->from == 42 && move->to == 22) x0 = 1, x1 = 3;

-		if (move->from == 42 && move->to == 62) x0 = 8, x1 = 5;

-		if (move->from == 52 && move->to == 72) x0 = 8, x1 = 6;

-		if (move->from == 52 && move->to == 32) x0 = 1, x1 = 4;

+		if (move->from == 24 && move->to == 22) x0 = 1, x1 = 3;

+		if (move->from == 24 && move->to == 26) x0 = 8, x1 = 5;

+		if (move->from == 25 && move->to == 27) x0 = 8, x1 = 6;

+		if (move->from == 25 && move->to == 23) x0 = 1, x1 = 4;

 		if (x0) ctx->board[x1 + 20] = moonfish_empty, ctx->board[x0 + 20] = moonfish_our_rook;

 	}

 }

-- 

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