+ /* copy properties to some elements that are only stored in level file */
+ for (i=0; i < NUM_ELEMENT_PROPERTIES; i++)
+ for (j=0; copy_properties[j][0] != -1; j++)
+ if (HAS_PROPERTY(copy_properties[j][0], i))
+ for (k=1; k<=4; k++)
+ SET_PROPERTY(copy_properties[j][k], i, TRUE);
+}
+
+void InitElementPropertiesEngine(int engine_version)
+{
+#if 0
+ static int active_properties[] =
+ {
+ EP_AMOEBALIVE,
+ EP_AMOEBOID,
+ EP_PFORTE,
+ EP_DONT_COLLIDE_WITH,
+ EP_MAUER,
+ EP_CAN_FALL,
+ EP_CAN_SMASH,
+ EP_CAN_PASS_MAGIC_WALL,
+ EP_CAN_MOVE,
+ EP_DONT_TOUCH,
+ EP_DONT_RUN_INTO,
+ EP_GEM,
+ EP_CAN_EXPLODE_BY_FIRE,
+ EP_PUSHABLE,
+ EP_PLAYER,
+ EP_HAS_CONTENT,
+ EP_DIGGABLE,
+ EP_PASSABLE_INSIDE,
+ EP_OVER_PLAYER,
+ EP_ACTIVE_BOMB,
+
+ EP_BELT,
+ EP_BELT_ACTIVE,
+ EP_BELT_SWITCH,
+ EP_WALKABLE_UNDER,
+ EP_EM_SLIPPERY_WALL,
+ EP_CAN_BE_CRUMBLED,
+ };
+#endif
+
+ static int no_wall_properties[] =
+ {
+ EP_DIGGABLE,
+ EP_COLLECTIBLE,
+ EP_DONT_RUN_INTO,
+ EP_DONT_COLLIDE_WITH,
+ EP_CAN_MOVE,
+ EP_CAN_FALL,
+ EP_CAN_SMASH_PLAYER,
+ EP_CAN_SMASH_ENEMIES,
+ EP_CAN_SMASH_EVERYTHING,
+ EP_PUSHABLE,
+
+ EP_CAN_BE_CRUMBLED,
+
+ EP_PLAYER,
+ EP_GEM,
+ EP_FOOD_DARK_YAMYAM,
+ EP_FOOD_PENGUIN,
+ EP_BELT,
+ EP_BELT_ACTIVE,
+ EP_TUBE,
+ EP_AMOEBOID,
+ EP_AMOEBALIVE,
+ EP_ACTIVE_BOMB,
+
+ EP_ACCESSIBLE,
+ -1
+ };
+
+ int i, j;
+
+#if 0
+ InitElementPropertiesStatic();
+#endif
+
+ /* set all special, combined or engine dependent element properties */
+ for (i=0; i < MAX_NUM_ELEMENTS; i++)
+ {
+#if 0
+ for (j=EP_ACCESSIBLE_OVER; j < NUM_ELEMENT_PROPERTIES; j++)
+ SET_PROPERTY(i, j, FALSE);
+#endif
+
+ /* ---------- INACTIVE ------------------------------------------------- */
+ if (i >= EL_CHAR_START && i <= EL_CHAR_END)
+ SET_PROPERTY(i, EP_INACTIVE, TRUE);
+
+ /* ---------- WALKABLE, PASSABLE, ACCESSIBLE --------------------------- */
+ SET_PROPERTY(i, EP_WALKABLE, (IS_WALKABLE_OVER(i) ||
+ IS_WALKABLE_INSIDE(i) ||
+ IS_WALKABLE_UNDER(i)));
+
+ SET_PROPERTY(i, EP_PASSABLE, (IS_PASSABLE_OVER(i) ||
+ IS_PASSABLE_INSIDE(i) ||
+ IS_PASSABLE_UNDER(i)));
+
+ SET_PROPERTY(i, EP_ACCESSIBLE_OVER, (IS_WALKABLE_OVER(i) ||
+ IS_PASSABLE_OVER(i)));
+
+ SET_PROPERTY(i, EP_ACCESSIBLE_INSIDE, (IS_WALKABLE_INSIDE(i) ||
+ IS_PASSABLE_INSIDE(i)));
+
+ SET_PROPERTY(i, EP_ACCESSIBLE_UNDER, (IS_WALKABLE_UNDER(i) ||
+ IS_PASSABLE_UNDER(i)));
+
+ SET_PROPERTY(i, EP_ACCESSIBLE, (IS_WALKABLE(i) ||
+ IS_PASSABLE(i)));
+
+ /* ---------- SNAPPABLE ------------------------------------------------ */
+ SET_PROPERTY(i, EP_SNAPPABLE, (IS_DIGGABLE(i) ||
+ IS_COLLECTIBLE(i) ||
+ IS_SWITCHABLE(i) ||
+ i == EL_BD_ROCK));
+
+ /* ---------- WALL ----------------------------------------------------- */
+ SET_PROPERTY(i, EP_WALL, TRUE); /* default: element is wall */
+
+ for (j=0; no_wall_properties[j] != -1; j++)
+ if (HAS_PROPERTY(i, no_wall_properties[j]) ||
+ i >= EL_FIRST_RUNTIME_UNREAL)
+ SET_PROPERTY(i, EP_WALL, FALSE);
+
+ if (IS_HISTORIC_WALL(i))
+ SET_PROPERTY(i, EP_WALL, TRUE);
+
+ /* ---------- SOLID_FOR_PUSHING ---------------------------------------- */
+ if (engine_version < VERSION_IDENT(2,2,0))
+ SET_PROPERTY(i, EP_SOLID_FOR_PUSHING, IS_HISTORIC_SOLID(i));
+ else
+ SET_PROPERTY(i, EP_SOLID_FOR_PUSHING, (!IS_WALKABLE(i) &&
+ !IS_DIGGABLE(i) &&
+ !IS_COLLECTIBLE(i)));
+
+ /* ---------- DRAGONFIRE_PROOF ----------------------------------------- */
+
+ if (IS_HISTORIC_SOLID(i) || i == EL_EXPLOSION)
+ SET_PROPERTY(i, EP_DRAGONFIRE_PROOF, TRUE);
+ else
+ SET_PROPERTY(i, EP_DRAGONFIRE_PROOF, (IS_CUSTOM_ELEMENT(i) &&
+ IS_INDESTRUCTIBLE(i)));
+
+ /* ---------- EXPLOSION_PROOF ------------------------------------------ */
+ if (i == EL_FLAMES)
+ SET_PROPERTY(i, EP_EXPLOSION_PROOF, TRUE);
+ else if (engine_version < VERSION_IDENT(2,2,0))
+ SET_PROPERTY(i, EP_EXPLOSION_PROOF, IS_INDESTRUCTIBLE(i));
+ else
+ SET_PROPERTY(i, EP_EXPLOSION_PROOF, (IS_INDESTRUCTIBLE(i) &&
+ !IS_WALKABLE_OVER(i) &&
+ !IS_WALKABLE_UNDER(i)));
+
+ if (IS_CUSTOM_ELEMENT(i))
+ {
+ /* ---------- DONT_COLLIDE_WITH / DONT_RUN_INTO ---------------------- */
+ if (DONT_TOUCH(i))
+ SET_PROPERTY(i, EP_DONT_COLLIDE_WITH, TRUE);
+ if (DONT_COLLIDE_WITH(i))
+ SET_PROPERTY(i, EP_DONT_RUN_INTO, TRUE);
+
+ /* ---------- CAN_SMASH_ENEMIES / CAN_SMASH_PLAYER ------------------- */
+ if (CAN_SMASH_EVERYTHING(i))
+ SET_PROPERTY(i, EP_CAN_SMASH_ENEMIES, TRUE);
+ if (CAN_SMASH_ENEMIES(i))
+ SET_PROPERTY(i, EP_CAN_SMASH_PLAYER, TRUE);
+ }
+
+ /* ---------- CAN_SMASH ------------------------------------------------ */
+ SET_PROPERTY(i, EP_CAN_SMASH, (CAN_SMASH_PLAYER(i) ||
+ CAN_SMASH_ENEMIES(i) ||
+ CAN_SMASH_EVERYTHING(i)));
+
+ /* ---------- CAN_EXPLODE ---------------------------------------------- */
+ SET_PROPERTY(i, EP_CAN_EXPLODE, (CAN_EXPLODE_BY_FIRE(i) ||
+ CAN_EXPLODE_SMASHED(i) ||
+ CAN_EXPLODE_IMPACT(i)));
+ }
+
+#if 0
+ /* determine inactive elements (used for engine main loop optimization) */
+ for (i=0; i < MAX_NUM_ELEMENTS; i++)
+ {
+ boolean active = FALSE;
+
+ for (j=0; i < NUM_ELEMENT_PROPERTIES; j++)
+ {
+ if (HAS_PROPERTY(i, j))
+ active = TRUE;
+ }
+
+#if 0
+ if (!active)
+ SET_PROPERTY(i, EP_INACTIVE, TRUE);
+#endif
+ }
+#endif
+
+ /* dynamically adjust element properties according to game engine version */
+ {
+ static int ep_em_slippery_wall[] =
+ {
+ EL_STEELWALL,
+ EL_WALL,
+ EL_EXPANDABLE_WALL,
+ EL_EXPANDABLE_WALL_HORIZONTAL,
+ EL_EXPANDABLE_WALL_VERTICAL,
+ EL_EXPANDABLE_WALL_ANY,
+ -1
+ };
+
+ /* special EM style gems behaviour */
+ for (i=0; ep_em_slippery_wall[i] != -1; i++)
+ SET_PROPERTY(ep_em_slippery_wall[i], EP_EM_SLIPPERY_WALL,
+ level.em_slippery_gems);
+
+ /* "EL_EXPANDABLE_WALL_GROWING" wasn't slippery for EM gems in 2.0.1 */
+ SET_PROPERTY(EL_EXPANDABLE_WALL_GROWING, EP_EM_SLIPPERY_WALL,
+ (level.em_slippery_gems &&
+ engine_version > VERSION_IDENT(2,0,1)));
+ }
+
+#if 0
+ /* dynamically adjust element properties according to game engine version */
+#if 0
+ if (engine_version < RELEASE_IDENT(2,2,0,7))
+#endif