Fix wallmounted rotations along Y axis for 90 and 270 degree cases

diff --git a/src/mapnode.cpp b/src/mapnode.cpp
index 388818c426b0366c6b200b2521805afcd8a56e9f..f9323118770a11178bb8d0357f201174b5489690 100644 (file)
--- a/src/mapnode.cpp
+++ b/src/mapnode.cpp
@@ -31,6 +31,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 static const Rotation wallmounted_to_rot[] = {
        ROTATE_0, ROTATE_180, ROTATE_90, ROTATE_270
 };
+
 static const u8 rot_to_wallmounted[] = {
        2, 4, 3, 5
 };
@@ -154,7 +155,7 @@ void MapNode::rotateAlongYAxis(INodeDefManager *nodemgr, Rotation rot) {
                        
                Rotation oldrot = wallmounted_to_rot[wmountface - 2];
                param2 &= ~7;
-               param2 |= rot_to_wallmounted[(oldrot + rot) & 3];
+               param2 |= rot_to_wallmounted[(oldrot - rot) & 3];
        }
 }