- Support deleting references from a plugin

- Add preliminary support for loading some unique fields appearing only in savegames
- Add a few lines required for supporting respawning references. Incomplete.

apps/openmw/mwworld/cellstore.cpp

@@ -61,11 +61,15 @@ namespace MWWorld
             while (mCell->getNextRef (esm[index], ref))
             {
                 std::string lowerCase;
+                if (ref.mDeleted) {
+                    // Right now, don't do anything. Wehere is "listRefs" actually used, anyway?
+                    //  Skipping for now...
+                    continue;
+                }
 
                 std::transform (ref.mRefID.begin(), ref.mRefID.end(), std::back_inserter (lowerCase),
                     (int(*)(int)) std::tolower);
 
-                // TODO: Fully support deletion of references.
                 mIds.push_back (lowerCase);
             }
         }
@@ -97,7 +101,6 @@ namespace MWWorld
                 std::transform (ref.mRefID.begin(), ref.mRefID.end(), std::back_inserter (lowerCase),
                     (int(*)(int)) std::tolower);
 
-                // TODO: Fully support deletion of references.
                 int rec = store.find(ref.mRefID);
 
                 ref.mRefID = lowerCase;

apps/openmw/mwworld/cellstore.hpp

@@ -59,6 +59,13 @@ namespace MWWorld
     /// on miss
     void load(ESM::CellRef &ref, const MWWorld::ESMStore &esmStore)
     {
+        // Skip this when reference was deleted.
+        // TODO: Support respawning references, in this case, we need to track it somehow.
+        if (ref.mDeleted) {
+            mList.erase(ref.mRefnum);
+            return;
+        }
+        
         // for throwing exception on unhandled record type
         const MWWorld::Store<X> &store = esmStore.get<X>();
         const X *ptr = store.search(ref.mRefID);

components/esm/esmreader.hpp

@@ -119,6 +119,14 @@ public:
       getHT(x);
   }
 
+  template <typename X>
+  void getHNOT(X &x, const char* name, int size)
+  {
+      assert(sizeof(X) == size);
+      if(isNextSub(name))
+          getHT(x);
+  }
+
   int64_t getHNLong(const char *name);
 
   // Get data of a given type/size, including subrecord header

components/esm/loadcell.cpp

@@ -213,7 +213,24 @@ bool Cell::getNextRef(ESMReader &esm, CellRef &ref)
     // missing
     ref.mScale = 1.0;
     esm.getHNOT(ref.mScale, "XSCL");
-
+    
+    // TODO: support loading references from saves, there are tons of keys not recognized yet.
+    // The following is just an incomplete list.
+    if (esm.isNextSub("ACTN"))
+        esm.skipHSub();
+    if (esm.isNextSub("STPR"))
+        esm.skipHSub();
+    if (esm.isNextSub("ACDT"))
+        esm.skipHSub();
+    if (esm.isNextSub("ACSC"))
+        esm.skipHSub();
+    if (esm.isNextSub("ACSL"))
+        esm.skipHSub();
+    if (esm.isNextSub("CHRD"))
+        esm.skipHSub();
+    else if (esm.isNextSub("CRED")) // ???
+        esm.skipHSub();
+    
     ref.mOwner = esm.getHNOString("ANAM");
     ref.mGlob = esm.getHNOString("BNAM");
     ref.mSoul = esm.getHNOString("XSOL");
@@ -251,7 +268,7 @@ bool Cell::getNextRef(ESMReader &esm, CellRef &ref)
     esm.getHNOT(ref.mUnam, "UNAM");
     esm.getHNOT(ref.mFltv, "FLTV");
 
-    esm.getHNT(ref.mPos, "DATA", 24);
+    esm.getHNOT(ref.mPos, "DATA", 24);
     
     // Number of references in the cell? Maximum once in each cell,
     // but not always at the beginning, and not always right. In other
@@ -265,6 +282,13 @@ bool Cell::getNextRef(ESMReader &esm, CellRef &ref)
         esm.getHT(ref.mNam0);
         //esm.getHNOT(NAM0, "NAM0");
     }
+    
+    if (esm.isNextSub("DELE")) {
+        esm.skipHSub();
+        ref.mDeleted = 2; // Deleted, will not respawn.
+        // TODO: find out when references do respawn.
+    } else
+        ref.mDeleted = 0;
 
     return true;
 }

components/esm/loadcell.hpp

@@ -70,6 +70,9 @@ public:
 
   // No idea - occurs ONCE in Morrowind.esm, for an activator
   char mUnam;
+  
+  // Track deleted references. 0 - not deleted, 1 - deleted, but respawns, 2 - deleted and does not respawn.
+  int mDeleted;
 
   // Occurs in Tribunal.esm, eg. in the cell "Mournhold, Plaza
   // Brindisi Dorom", where it has the value 100. Also only for