#define EP_BD_ELEMENT 35
#define EP_SP_ELEMENT 36
#define EP_SB_ELEMENT 37
-#define EP_GEM 38
-#define EP_FOOD_DARK_YAMYAM 39
-#define EP_FOOD_PENGUIN 40
-#define EP_FOOD_PIG 41
-#define EP_HISTORIC_WALL 42
-#define EP_HISTORIC_SOLID 43
-#define EP_CLASSIC_ENEMY 44
-#define EP_BELT 45
-#define EP_BELT_ACTIVE 46
-#define EP_BELT_SWITCH 47
-#define EP_TUBE 48
-#define EP_KEYGATE 49
-#define EP_AMOEBOID 50
-#define EP_AMOEBALIVE 51
-#define EP_HAS_CONTENT 52
-#define EP_CAN_TURN_EACH_MOVE 53
-#define EP_CAN_GROW 54
-#define EP_ACTIVE_BOMB 55
-#define EP_INACTIVE 56
+#define EP_SP_BUGGY_BASE 38
+#define EP_GEM 39
+#define EP_FOOD_DARK_YAMYAM 40
+#define EP_FOOD_PENGUIN 41
+#define EP_FOOD_PIG 42
+#define EP_HISTORIC_WALL 43
+#define EP_HISTORIC_SOLID 44
+#define EP_CLASSIC_ENEMY 45
+#define EP_BELT 46
+#define EP_BELT_ACTIVE 47
+#define EP_BELT_SWITCH 48
+#define EP_TUBE 49
+#define EP_KEYGATE 50
+#define EP_AMOEBOID 51
+#define EP_AMOEBALIVE 52
+#define EP_HAS_CONTENT 53
+#define EP_CAN_TURN_EACH_MOVE 54
+#define EP_CAN_GROW 55
+#define EP_ACTIVE_BOMB 56
+#define EP_INACTIVE 57
/* values for special configurable properties (depending on level settings) */
-#define EP_EM_SLIPPERY_WALL 57
+#define EP_EM_SLIPPERY_WALL 58
/* values for special graphics properties (no effect on game engine) */
-#define EP_GFX_CRUMBLED 58
+#define EP_GFX_CRUMBLED 59
/* values for derived properties (determined from properties above) */
-#define EP_ACCESSIBLE_OVER 59
-#define EP_ACCESSIBLE_INSIDE 60
-#define EP_ACCESSIBLE_UNDER 61
-#define EP_WALKABLE 62
-#define EP_PASSABLE 63
-#define EP_ACCESSIBLE 64
-#define EP_COLLECTIBLE 65
-#define EP_SNAPPABLE 66
-#define EP_WALL 67
-#define EP_SOLID_FOR_PUSHING 68
-#define EP_DRAGONFIRE_PROOF 69
-#define EP_EXPLOSION_PROOF 70
-#define EP_CAN_SMASH 71
-#define EP_CAN_EXPLODE 72
-#define EP_CAN_EXPLODE_3X3 73
-#define EP_SP_PORT 74
-#define EP_CAN_EXPLODE_BY_DRAGONFIRE 75
-#define EP_CAN_EXPLODE_BY_EXPLOSION 76
-#define EP_COULD_MOVE_INTO_ACID 77
-#define EP_MAYBE_DONT_COLLIDE_WITH 78
+#define EP_ACCESSIBLE_OVER 60
+#define EP_ACCESSIBLE_INSIDE 61
+#define EP_ACCESSIBLE_UNDER 62
+#define EP_WALKABLE 63
+#define EP_PASSABLE 64
+#define EP_ACCESSIBLE 65
+#define EP_COLLECTIBLE 66
+#define EP_SNAPPABLE 67
+#define EP_WALL 68
+#define EP_SOLID_FOR_PUSHING 69
+#define EP_DRAGONFIRE_PROOF 70
+#define EP_EXPLOSION_PROOF 71
+#define EP_CAN_SMASH 72
+#define EP_CAN_EXPLODE 73
+#define EP_CAN_EXPLODE_3X3 74
+#define EP_SP_PORT 75
+#define EP_CAN_EXPLODE_BY_DRAGONFIRE 76
+#define EP_CAN_EXPLODE_BY_EXPLOSION 77
+#define EP_COULD_MOVE_INTO_ACID 78
+#define EP_MAYBE_DONT_COLLIDE_WITH 79
+#define EP_DIGGABLE_WITH_GRAVITY 80
/* values for internal purpose only (level editor) */
-#define EP_EXPLODE_RESULT 79
-#define EP_WALK_TO_OBJECT 80
-#define EP_DEADLY 81
+#define EP_EXPLODE_RESULT 81
+#define EP_WALK_TO_OBJECT 82
+#define EP_DEADLY 83
-#define NUM_ELEMENT_PROPERTIES 82
+#define NUM_ELEMENT_PROPERTIES 84
#define NUM_EP_BITFIELDS ((NUM_ELEMENT_PROPERTIES + 31) / 32)
#define EP_BITFIELD_BASE 0
#define IS_BD_ELEMENT(e) HAS_PROPERTY(e, EP_BD_ELEMENT)
#define IS_SP_ELEMENT(e) HAS_PROPERTY(e, EP_SP_ELEMENT)
#define IS_SB_ELEMENT(e) HAS_PROPERTY(e, EP_SB_ELEMENT)
+#define IS_SP_BUGGY_BASE(e) HAS_PROPERTY(e, EP_SP_BUGGY_BASE)
#define IS_GEM(e) HAS_PROPERTY(e, EP_GEM)
#define IS_FOOD_DARK_YAMYAM(e) HAS_PROPERTY(e, EP_FOOD_DARK_YAMYAM)
#define IS_FOOD_PENGUIN(e) HAS_PROPERTY(e, EP_FOOD_PENGUIN)
#define CAN_EXPLODE_BY_EXPLOSION(e) \
HAS_PROPERTY(e, EP_CAN_EXPLODE_BY_EXPLOSION)
#define COULD_MOVE_INTO_ACID(e) HAS_PROPERTY(e, EP_COULD_MOVE_INTO_ACID)
-#define MAYBE_DONT_COLLIDE_WITH(e) HAS_PROPERTY(e, EP_MAYBE_DONT_COLLIDE_WITH)
+#define MAYBE_DONT_COLLIDE_WITH(e) HAS_PROPERTY(e, EP_MAYBE_DONT_COLLIDE_WITH)
+#define IS_DIGGABLE_WITH_GRAVITY(e) HAS_PROPERTY(e, EP_DIGGABLE_WITH_GRAVITY)
/* special macros used in game engine */
#define IS_CUSTOM_ELEMENT(e) ((e) >= EL_CUSTOM_START && \