From: H.G.Muller <hgm@hgm-xboard.(none)>
Date: Wed, 25 Nov 2015 18:26:54 +0000 (+0100)
Subject: Allow skipping over black squares
X-Git-Url: http://winboard.nl/cgi-bin?p=xboard.git;a=commitdiff_plain;h=4d13e321177f50fb53e4cec3335c9d3966c88308

Allow skipping over black squares

'Skip pieces', defined with a 'j' prefix on a slider(asopposedto rider),
which skip the first square(s)of their path irrespective of occupation
should also be able to skip over holes in the board.
---

diff --git a/moves.c b/moves.c
index b5b6ffe..1e9ba9e 100644
--- a/moves.c
+++ b/moves.c
@@ -408,8 +408,8 @@ MovesFromString (Board board, int flags, int f, int r, int tx, int ty, int angle
 		if(y < 0 || y >= BOARD_HEIGHT) break; // vertically off-board: always done
 		if(x <  BOARD_LEFT) { if(mode & 128) x += BOARD_RGHT - BOARD_LEFT, loop++; else break; }
 		if(x >= BOARD_RGHT) { if(mode & 128) x -= BOARD_RGHT - BOARD_LEFT, loop++; else break; }
-		if(board[y][x] == DarkSquare) break;  // black squares are supposed to be off board
 		if(j) { j--; continue; }              // skip irrespective of occupation
+		if(board[y][x] == DarkSquare) break;  // black squares are supposed to be off board
 		if(!jump    && board[y - vy + vy/2][x - vx + vx/2] != EmptySquare) break; // blocked
 		if(jump > 1 && board[y - vy + vy/2][x - vx + vx/2] == EmptySquare) break; // no hop
 		if(x == f && y == r && !loop) occup = 4;     else // start square counts as empty (if not around cylinder!)