+ 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_FRIENDS ------------------ */
+ if (CAN_SMASH_EXPLOSIVES(i))
+ SET_PROPERTY(i, EP_CAN_SMASH_ENEMIES, TRUE);
+ if (CAN_SMASH_ENEMIES(i))
+ SET_PROPERTY(i, EP_CAN_SMASH_FRIENDS, TRUE);
+ }
+
+ /* ---------- CAN_SMASH ------------------------------------------------ */
+ SET_PROPERTY(i, EP_CAN_SMASH, (CAN_SMASH_FRIENDS(i) ||
+ CAN_SMASH_ENEMIES(i) ||
+ CAN_SMASH_EXPLOSIVES(i)));
+
+ /* ---------- CAN_EXPLODE ---------------------------------------------- */
+ SET_PROPERTY(i, EP_CAN_EXPLODE, (CAN_EXPLODE_BY_FIRE(i) ||
+ CAN_EXPLODE_SMASHED(i) ||
+ CAN_EXPLODE_BY_FIRE(i)));