new developer release

[xboard.git] / moves.c

diff --git a/moves.c b/moves.c
index 12f9b63..af04d1e 100644 (file)
--- a/moves.c
+++ b/moves.c
@@ -5,7 +5,7 @@
  * Massachusetts.
  *
  * Enhancements Copyright 1992-2001, 2002, 2003, 2004, 2005, 2006,
- * 2007, 2008, 2009 Free Software Foundation, Inc.
+ * 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
  *
  * Enhancements Copyright 2005 Alessandro Scotti
  *
@@ -263,6 +263,7 @@ void GenPseudoLegal(board, flags, callback, closure)
     int rf, ff;
     int i, j, d, s, fs, rs, rt, ft, m;
     int epfile = (signed char)board[EP_STATUS]; // [HGM] gamestate: extract ep status from board
+    int promoRank = gameInfo.variant == VariantMakruk ? 3 : 1;
 
     for (rf = 0; rf < BOARD_HEIGHT; rf++) 
       for (ff = BOARD_LEFT; ff < BOARD_RGHT; ff++) {
@@ -306,7 +307,7 @@ void GenPseudoLegal(board, flags, callback, closure)
               }
               if (rf < BOARD_HEIGHT-1 && board[rf + 1][ff] == EmptySquare) {
                  callback(board, flags,
-                          rf == BOARD_HEIGHT-2 ? WhitePromotionQueen : NormalMove,
+                          rf >= BOARD_HEIGHT-1-promoRank ? WhitePromotionQueen : NormalMove,
                           rf, ff, rf + 1, ff, closure);
              }
              if (rf == 1 && board[2][ff] == EmptySquare &&
@@ -321,7 +322,7 @@ void GenPseudoLegal(board, flags, callback, closure)
                      ((flags & F_KRIEGSPIEL_CAPTURE) ||
                       BlackPiece(board[rf + 1][ff + s]))) {
                      callback(board, flags, 
-                              rf == BOARD_HEIGHT-2 ? WhitePromotionQueen : NormalMove,
+                              rf >= BOARD_HEIGHT-1-promoRank ? WhitePromotionQueen : NormalMove,
                               rf, ff, rf + 1, ff + s, closure);
                  }
                  if (rf == BOARD_HEIGHT-4) {
@@ -356,7 +357,7 @@ void GenPseudoLegal(board, flags, callback, closure)
               }
              if (rf > 0 && board[rf - 1][ff] == EmptySquare) {
                  callback(board, flags, 
-                          rf == 1 ? BlackPromotionQueen : NormalMove,
+                          rf <= promoRank ? BlackPromotionQueen : NormalMove,
                           rf, ff, rf - 1, ff, closure);
              }
              if (rf == BOARD_HEIGHT-2 && board[BOARD_HEIGHT-3][ff] == EmptySquare &&
@@ -371,7 +372,7 @@ void GenPseudoLegal(board, flags, callback, closure)
                      ((flags & F_KRIEGSPIEL_CAPTURE) ||
                       WhitePiece(board[rf - 1][ff + s]))) {
                      callback(board, flags, 
-                              rf == 1 ? BlackPromotionQueen : NormalMove,
+                              rf <= promoRank ? BlackPromotionQueen : NormalMove,
                               rf, ff, rf - 1, ff + s, closure);
                  }
                  if (rf == 3) {
@@ -611,6 +612,8 @@ void GenPseudoLegal(board, flags, callback, closure)
 
             /* Shogi Pawn and Silver General: first the Pawn move,    */
             /* then the General continues like a Ferz                 */
+            case WhiteMan:
+                if(gameInfo.variant != VariantMakruk) goto commoner;
             case SHOGI WhitePawn:
             case SHOGI WhiteFerz:
                   if (rf < BOARD_HEIGHT-1 &&
@@ -620,6 +623,8 @@ void GenPseudoLegal(board, flags, callback, closure)
               if(piece != SHOGI WhitePawn) goto finishSilver;
               break;
 
+            case BlackMan:
+                if(gameInfo.variant != VariantMakruk) goto commoner;
             case SHOGI BlackPawn:
             case SHOGI BlackFerz:
                   if (rf > 0 &&
@@ -647,8 +652,7 @@ void GenPseudoLegal(board, flags, callback, closure)
            case WhiteSilver:
            case BlackSilver:
                m++; // [HGM] superchess: use for Centaur
-            case WhiteMan:
-            case BlackMan:
+            commoner:
             case SHOGI WhiteKing:
             case SHOGI BlackKing:
            case WhiteKing:
@@ -855,7 +859,7 @@ int GenLegal(board, flags, callback, closure)
        }
     }
 
-  if(gameInfo.variant == VariantFischeRandom) {
+  if(flags & F_FRC_TYPE_CASTLING) {
 
     /* generate all potential FRC castling moves (KxR), ignoring flags */
     /* [HGM] test if the Rooks we find have castling rights */
@@ -1219,12 +1223,16 @@ void DisambiguateCallback(board, flags, kind, rf, ff, rt, ft, closure)
        (cl->ftIn == -1 || cl->ftIn == ft || wildCard)) {
 
        cl->count++;
-        cl->piece = board[rf][ff];
-       cl->rf = rf;
-       cl->ff = ff;
-       cl->rt = wildCard ? cl->rtIn : rt;
-       cl->ft = wildCard ? cl->ftIn : ft;
-       cl->kind = kind;
+       if(cl->count == 1 || board[rt][ft] != EmptySquare) {
+         // [HGM] oneclick: if multiple moves, be sure we remember capture
+         cl->piece = board[rf][ff];
+         cl->rf = rf;
+         cl->ff = ff;
+         cl->rt = wildCard ? cl->rtIn : rt;
+         cl->ft = wildCard ? cl->ftIn : ft;
+         cl->kind = kind;
+       }
+       cl->captures += (board[cl->rt][cl->ft] != EmptySquare); // [HGM] oneclick: count captures
     }
 }
 
@@ -1235,7 +1243,7 @@ void Disambiguate(board, flags, closure)
 {
     int illegal = 0; char c = closure->promoCharIn;
 
-    closure->count = 0;
+    closure->count = closure->captures = 0;
     closure->rf = closure->ff = closure->rt = closure->ft = 0;
     closure->kind = ImpossibleMove;
     if (appData.debugMode) {