oisyn.cc.patch

@@ -349,7 +350,8 @@
        //int minx = 0, miny = 0, maxx = 0, maxy = 0;
 
        BitGrid grid;
-       int numCells = 0;
+       grid.Set(0, 0);
+       int numCells = 1;
 
        while (ptr < end)
        {
@@ -364,17 +366,18 @@
                {
                        int d = dir;
                        Move lastMove;
-                       for (int k = 0; k < NumKnots; k++)
+                       for (int k = 0; k < NumKnots && d != None; k++)
                        {
                                auto& state = knotStates[k];
                                lastMove = States[state][d];
                                state = lastMove.nextState;
                                d = lastMove.moveDir;
                        }
-                       x += lastMove.dx;
-                       y += lastMove.dy;
-
-                       numCells += grid.Set(x, y);
+                       if (d != None) {
+                               x += lastMove.dx;
+                               y += lastMove.dy;
+                               numCells += grid.Set(x, y);
+                       }
                }
        }
        tsimulate.Stop();