reinstate functions still used by stonesense

library/include/modules/Buildings.h

@@ -58,13 +58,46 @@ class color_ostream;
 
 namespace Buildings
 {
+/**
+ * Structure for holding a read DF building object
+ * \ingroup grp_buildings
+ */
+struct t_building
+{
+    uint32_t x1;
+    uint32_t y1;
+    uint32_t x2;
+    uint32_t y2;
+    uint32_t z;
+    t_matglossPair material;
+    df::building_type type;
+    union
+    {
+        int16_t subtype;
+        df::civzone_type civzone_type;
+        df::furnace_type furnace_type;
+        df::workshop_type workshop_type;
+        df::construction_type construction_type;
+        df::shop_type shop_type;
+        df::siegeengine_type siegeengine_type;
+        df::trap_type trap_type;
+    };
+    int32_t custom_type;
+    df::building * origin;
+};
+
 /**
  * The Buildings module - allows reading DF buildings
  * \ingroup grp_modules
  * \ingroup grp_buildings
  */
 DFHACK_EXPORT uint32_t getNumBuildings ();
 
+/**
+ * read building by index
+ */
+DFHACK_EXPORT bool Read (const uint32_t index, t_building & building);
+
 /**
  * read mapping from custom_type value to building RAW name
  * custom_type of -1 implies ordinary building

library/modules/Buildings.cpp

@@ -306,6 +306,24 @@ uint32_t Buildings::getNumBuildings()
     return world->buildings.all.size();
 }
 
+bool Buildings::Read (const uint32_t index, t_building & building)
+{
+    df::building *bld = world->buildings.all[index];
+
+    building.x1 = bld->x1;
+    building.x2 = bld->x2;
+    building.y1 = bld->y1;
+    building.y2 = bld->y2;
+    building.z = bld->z;
+    building.material.index = bld->mat_index;
+    building.material.type = bld->mat_type;
+    building.type = bld->getType();
+    building.subtype = bld->getSubtype();
+    building.custom_type = bld->getCustomType();
+    building.origin = bld;
+    return true;
+}
+
 bool Buildings::ReadCustomWorkshopTypes(map <uint32_t, string> & btypes)
 {
     vector <building_def *> & bld_def = world->raws.buildings.all;