#define IN_SCR_FIELD(x,y) ((x)>=BX1 && (x)<=BX2 && (y)>=BY1 &&(y)<=BY2)
#define IN_LEV_FIELD(x,y) ((x)>=0 && (x)<lev_fieldx && (y)>=0 &&(y)<lev_fieldy)
-/* values for base properties */
+/* values for base properties (storable) */
#define EP_AMOEBALIVE 0
#define EP_AMOEBOID 1
#define EP_CAN_BE_CRUMBLED 2
#define EP_PUSHABLE 24
#define EP_PLAYER 25
#define EP_WALKABLE_OVER 26
-#define EP_WALKABLE_THROUGH 27
+#define EP_WALKABLE_INSIDE 27
#define EP_WALKABLE_UNDER 28
#define EP_PASSABLE_OVER 29
-#define EP_PASSABLE_THROUGH 30
+#define EP_PASSABLE_INSIDE 30
#define EP_PASSABLE_UNDER 31
-/* values for runtime properties */
-#define EP_WALKABLE 32
-#define EP_PASSABLE 33
-#define EP_PLAYER_OVER 34
-#define EP_PLAYER_INSIDE 35
-#define EP_PLAYER_UNDER 36
-#define EP_DIGGABLE 37
-#define EP_COLLECTIBLE 38
-#define EP_OVER_PLAYER 39
+/* values for runtime properties (non-storable) */
+#define EP_ACCESSIBLE_OVER 32
+#define EP_ACCESSIBLE_INSIDE 33
+#define EP_ACCESSIBLE_UNDER 34
+#define EP_WALKABLE 35
+#define EP_PASSABLE 36
+#define EP_ACCESSIBLE 37
+#define EP_DIGGABLE 38
+#define EP_COLLECTIBLE 39
#define EP_ACTIVE_BOMB 40
#define EP_BELT 41
#define EP_BELT_ACTIVE 42
#define EP_BELT_SWITCH 43
#define EP_SP_ELEMENT 44
#define EP_HAS_CONTENT 45
+#define EP_TUBE 46
-#define NUM_ELEMENT_PROPERTIES 46
+#define NUM_ELEMENT_PROPERTIES 47
#define NUM_EP_BITFIELDS ((NUM_ELEMENT_PROPERTIES + 31) / 32)
#define EP_BITFIELD_BASE 0
#define IS_PUSHABLE(e) HAS_PROPERTY(e, EP_PUSHABLE)
#define ELEM_IS_PLAYER(e) HAS_PROPERTY(e, EP_PLAYER)
#define IS_WALKABLE_OVER(e) HAS_PROPERTY(e, EP_WALKABLE_OVER)
-#define IS_WALKABLE_THROUGH(e) HAS_PROPERTY(e, EP_WALKABLE_THROUGH)
+#define IS_WALKABLE_INSIDE(e) HAS_PROPERTY(e, EP_WALKABLE_INSIDE)
#define IS_WALKABLE_UNDER(e) HAS_PROPERTY(e, EP_WALKABLE_UNDER)
#define IS_PASSABLE_OVER(e) HAS_PROPERTY(e, EP_PASSABLE_OVER)
-#define IS_PASSABLE_THROUGH(e) HAS_PROPERTY(e, EP_PASSABLE_THROUGH)
+#define IS_PASSABLE_INSIDE(e) HAS_PROPERTY(e, EP_PASSABLE_INSIDE)
#define IS_PASSABLE_UNDER(e) HAS_PROPERTY(e, EP_PASSABLE_UNDER)
/* macros for runtime properties */
+#define IS_ACCESSIBLE_OVER(e) HAS_PROPERTY(e, EP_ACCESSIBLE_OVER)
+#define IS_ACCESSIBLE_INSIDE(e) HAS_PROPERTY(e, EP_ACCESSIBLE_INSIDE)
+#define IS_ACCESSIBLE_UNDER(e) HAS_PROPERTY(e, EP_ACCESSIBLE_UNDER)
#define IS_WALKABLE(e) HAS_PROPERTY(e, EP_WALKABLE)
#define IS_PASSABLE(e) HAS_PROPERTY(e, EP_PASSABLE)
-#define IS_PLAYER_OVER(e) HAS_PROPERTY(e, EP_PLAYER_OVER)
-#define IS_PLAYER_INSIDE(e) HAS_PROPERTY(e, EP_PLAYER_INSIDE)
-#define IS_PLAYER_UNDER(e) HAS_PROPERTY(e, EP_PLAYER_UNDER)
+#define IS_ACCESSIBLE(e) HAS_PROPERTY(e, EP_ACCESSIBLE)
#define IS_DIGGABLE(e) HAS_PROPERTY(e, EP_DIGGABLE)
#define IS_COLLECTIBLE(e) HAS_PROPERTY(e, EP_COLLECTIBLE)
-#define IS_OVER_PLAYER(e) HAS_PROPERTY(e, EP_OVER_PLAYER)
#define IS_ACTIVE_BOMB(e) HAS_PROPERTY(e, EP_ACTIVE_BOMB)
#define IS_BELT(e) HAS_PROPERTY(e, EP_BELT)
#define IS_BELT_ACTIVE(e) HAS_PROPERTY(e, EP_BELT_ACTIVE)
#define IS_BELT_SWITCH(e) HAS_PROPERTY(e, EP_BELT_SWITCH)
#define IS_SP_ELEMENT(e) HAS_PROPERTY(e, EP_SP_ELEMENT)
#define HAS_CONTENT(e) HAS_PROPERTY(e, EP_HAS_CONTENT)
+#define IS_TUBE(e) HAS_PROPERTY(e, EP_TUBE)
#define IS_CUSTOM_ELEMENT(e) ((e) >= EL_CUSTOM_START && \
(e) <= EL_CUSTOM_END)
#define PLAYERINFO(x,y) (&stored_player[StorePlayer[x][y]-EL_PLAYER_1])
#define SHIELD_ON(p) ((p)->shield_normal_time_left > 0)
-#define PROTECTED_FIELD(x,y) (IS_WALKABLE_UNDER(Feld[x][y]) && \
+#define PROTECTED_FIELD(x,y) (IS_ACCESSIBLE_INSIDE(Feld[x][y]) && \
IS_INDESTRUCTIBLE(Feld[x][y]))
#define PLAYER_PROTECTED(x,y) (SHIELD_ON(PLAYERINFO(x, y)) || \
PROTECTED_FIELD(x, y))