+#if 0
+ if (effective_element == EL_EMC_GRASS &&
+ effective_action == ACTION_DIGGING)
+ printf("::: %d\n", crumbled);
+#endif
+
+#if 0
+ if (has_crumbled_graphics && crumbled == IMG_EMPTY_SPACE)
+ printf("::: empty crumbled: %d [%s], %d, %d\n",
+ effective_element, element_info[effective_element].token_name,
+ effective_action, direction);
+#endif
+
+ /* if element can be crumbled, but certain action graphics are just empty
+ space (like snapping sand with the original R'n'D graphics), do not
+ treat these empty space graphics as crumbled graphics in EMC engine */
+ if (has_crumbled_graphics && crumbled != IMG_EMPTY_SPACE)