Make Knight hop first straight, then diagonal

[xboard.git] / winboard / winboard.c

diff --git a/winboard/winboard.c b/winboard/winboard.c
index ec17e47..73a36b6 100644 (file)
--- a/winboard/winboard.c
+++ b/winboard/winboard.c
@@ -9658,17 +9658,17 @@ AnimateMove(board, fromX, fromY, toX, toY)
   ScreenSquare(fromX, fromY, &start);\r
   ScreenSquare(toX, toY, &finish);\r
 \r
-  /* All pieces except knights move in straight line */\r
-  if (piece != WhiteKnight && piece != BlackKnight) {\r
+  /* All moves except knight jumps move in straight line */\r
+  if (!(abs(fromX-toX) == 1 && abs(fromY-toY) == 2 || abs(fromX-toX) == 2 && abs(fromY-toY) == 1)) {\r
     mid.x = start.x + (finish.x - start.x) / 2;\r
     mid.y = start.y + (finish.y - start.y) / 2;\r
   } else {\r
-    /* Knight: make diagonal movement then straight */\r
+    /* Knight: make straight movement then diagonal */\r
     if (abs(toY - fromY) < abs(toX - fromX)) {\r
        mid.x = start.x + (finish.x - start.x) / 2;\r
-       mid.y = finish.y;\r
+       mid.y = start.y;\r
      } else {\r
-       mid.x = finish.x;\r
+       mid.x = start.x;\r
        mid.y = start.y + (finish.y - start.y) / 2;\r
      }\r
   }\r