Make all "origin" fields strongly typed, and fix building.origin to actually be meaningful

library/include/modules/Buildings.h

@@ -24,6 +24,8 @@ distribution.
 
 #pragma once
 #include "Export.h"
+#include "DataDefs.h"
+#include "df/building.h"
 
 namespace DFHack
 {
@@ -45,7 +47,7 @@ struct t_building
     t_matglossPair material;
     uint32_t type;
     int32_t custom_type;
-    void * origin;
+    df::building * origin;
 };
 
 /**

library/include/modules/Maps.h

@@ -39,7 +39,7 @@ distribution.
 #include "modules/Materials.h"
 
 #include "df/world.h"
-#include "df/feature_type.h"
+#include "df/feature_init.h"
 #include "df/map_block.h"
 #include "df/block_square_event.h"
 #include "df/block_square_event_mineralst.h"
@@ -84,7 +84,7 @@ struct t_feature
     /// placeholder
     bool discovered;
     /// this is NOT part of the DF feature, but an address of the feature as seen by DFhack.
-    void * origin;
+    df::feature_init * origin;
 };
 
 /**
@@ -178,7 +178,7 @@ typedef struct
     /// values used for geology/biome assignment
     biome_indices40d biome_indices;
     /// the address where the block came from
-    void * origin;
+    df::map_block * origin;
     t_blockflags blockflags;
     /// index into the global feature vector
     int32_t global_feature;

library/include/modules/Vermin.h

@@ -3,6 +3,9 @@
  * \defgroup grp_vermin Wild vermin (ants, bees, etc)
  */
 #include "Export.h"
+#include "DataDefs.h"
+#include "df/vermin.h"
+
 namespace DFHack { namespace Simple { namespace Vermin
 {
     /**
@@ -11,7 +14,7 @@ namespace DFHack { namespace Simple { namespace Vermin
      */
     struct t_vermin
     {
-        void * origin;
+        df::vermin * origin;
         int16_t race;
         int16_t caste;
         uint16_t x;

library/modules/Buildings.cpp

@@ -43,7 +43,6 @@ using namespace DFHack::Simple;
 #include "DataDefs.h"
 #include "df/world.h"
 #include "df/building_def.h"
-#include "df/building.h"
 #include "df/building_workshopst.h"
 
 using namespace df::enums;
@@ -72,7 +71,7 @@ bool Buildings::Read (const uint32_t index, t_building & building)
     building.material.type = bld_40d->mat_type;
     building.type = type;
     building.custom_type = bld_40d->getCustomType();
-    building.origin = (void *) &bld_40d;
+    building.origin = bld_40d;
     return true;
 }