Improve transparency processing on flat map

src/main/java/org/dynmap/flat/FlatMap.java

@@ -347,12 +347,12 @@ public class FlatMap extends MapType {
                         pixel[1] = c.getGreen();
                         pixel[2] = c.getBlue();
                         pixel[3] = c.getAlpha();
+                    }
+                }
                 /* Recurse to resolve color here */
                 process_transparent(pixel, pixel_day, mapiter);
             }
         }
-            }
-        }
         /* Blend colors from behind block and block, based on alpha */
         r *= a;
         g *= a;