Allow creation of DarkSquares in EditPosition mode

[xboard.git] / backend.c

diff --git a/backend.c b/backend.c
index bdafe3d..0b4ad84 100644 (file)
--- a/backend.c
+++ b/backend.c
@@ -6948,7 +6948,7 @@ UserMoveEvent(int fromX, int fromY, int toX, int toY, int promoChar)
        /* EditPosition, empty square, or different color piece;
           click-click move is possible */
        if (toX == -2 || toY == -2) {
-           boards[0][fromY][fromX] = EmptySquare;
+           boards[0][fromY][fromX] = (boards[0][fromY][fromX] == EmptySquare ? DarkSquare : EmptySquare);
            DrawPosition(FALSE, boards[currentMove]);
            return;
        } else if (toX >= 0 && toY >= 0) {
@@ -15121,7 +15121,7 @@ EditPositionMenuEvent (ChessSquare selection, int x, int y)
                                     AAA + x, ONE + y);
                            SendToICS(buf);
                        }
-                   } else {
+                   } else if(boards[0][y][x] != DarkSquare) {
                        if(boards[0][y][x] != p) nonEmpty++;
                        boards[0][y][x] = p;
                    }