- Partially reimplement deleting objects defined in a parent esX file.

- Try to reimplement multiple esX files dropping references in the same file.
NOTE: None of these features works. Maybe the code itself does not build. Anyway, after 12 hours of hacking, I am just tired and want to get a snapshot of the code out.

apps/openmw/mwworld/cellstore.cpp

@@ -83,6 +83,8 @@ namespace MWWorld
         // Load references from all plugins that do something with this cell.
         for (size_t i = 0; i < mCell->mContextList.size(); i++)
         {
+            if (mCell->mContextList.size() > 1)
+                std::cout << "number of lists " << mCell->mContextList.size() << std::endl;
             // Reopen the ESM reader and seek to the right position.
             int index = mCell->mContextList.at(i).index;
             mCell->restore (esm[index], i);

apps/openmw/mwworld/esmstore.cpp

@@ -84,6 +84,15 @@ void ESMStore::load(ESM::ESMReader &esm)
         } else {
             // Load it
             std::string id = esm.getHNOString("NAME");
+            // ... unless it got deleted! This means that the following record
+            //  has been deleted, and trying to load it using standard assumptions
+            //  on the structure will (probably) fail.
+            if (esm.isNextSub("DELE")) {
+              esm.skipRecord();
+              all.erase(id);
+              it->second->remove(id);
+              continue;
+            }
             it->second->load(esm, id);
 
             if (n.val==ESM::REC_DIAL) {
@@ -113,7 +122,7 @@ void ESMStore::load(ESM::ESMReader &esm)
     cout << *it << " ";
   cout << endl;
   */
-    setUp();
+    //setUp();
 }
 
 void ESMStore::setUp()

apps/openmw/mwworld/esmstore.hpp

@@ -168,7 +168,8 @@ namespace MWWorld
             return ptr;
         }
 
-    private:
+        // This method must be called once, after loading all master/plugin files. This can only be done
+        //  from the outside, so it must be public.
         void setUp();
     };
 

apps/openmw/mwworld/store.hpp

@@ -473,14 +473,48 @@ namespace MWWorld
         }
 
         void load(ESM::ESMReader &esm, const std::string &id) {
-            ESM::Cell cell;
-            cell.mName = id;
-            cell.load(esm);
+            // Don't automatically assume that a new cell must be spawned. Multiple plugins write to the same cell,
+            //  and we merge all this data into one Cell object. However, we can't simply search for the cell id,
+            //  as many exterior cells do not have a name. Instead, we need to search by (x,y) coordinates - and they
+            //  are not available until both cells have been loaded! So first, proceed as usual.
+            
+            // All cells have a name record, even nameless exterior cells.
+            ESM::Cell *cell = new ESM::Cell;
+            cell->mName = id;
 
-            if (cell.isExterior()) {
-                mExt.push_back(cell);
-            } else {
-                mInt.push_back(cell);
+            // The cell itself takes care of all the hairy details
+            cell->load(esm);
+
+            if(cell->mData.mFlags & ESM::Cell::Interior)
+            {
+                // Store interior cell by name, try to merge with existing parent data.
+                ESM::Cell *oldcell = const_cast<ESM::Cell*>(search(id));
+                if (oldcell) {
+                    // push the new references on the list of references to manage
+                    oldcell->mContextList.push_back(cell->mContextList.at(0));
+                    // copy list into new cell
+                    cell->mContextList = oldcell->mContextList;
+                    // have new cell replace old cell
+                    *oldcell = *cell;
+                } else
+                    mInt.push_back(*cell);
+                delete cell;
+            }
+            else
+            {
+                // Store exterior cells by grid position, try to merge with existing parent data.
+                ESM::Cell *oldcell = const_cast<ESM::Cell*>(search(cell->getGridX(), cell->getGridY()));
+                std::cout << "setup - " << oldcell << " " << cell->getGridX() << " " << cell->getGridY() << std::endl;
+                if (oldcell) {
+                    // push the new references on the list of references to manage
+                    oldcell->mContextList.push_back(cell->mContextList.at(0));
+                    // copy list into new cell
+                    cell->mContextList = oldcell->mContextList;
+                    // have new cell replace old cell
+                    *oldcell = *cell;
+                } else
+                    mExt.push_back(*cell);
+                delete cell;
             }
         }
 

apps/openmw/mwworld/worldimp.cpp

@@ -215,6 +215,8 @@ namespace MWWorld
             mEsm[idx] = lEsm;
             mStore.load (mEsm[idx]);
         }
+        
+        mStore.setUp();
 
         mPlayer = new MWWorld::Player (mStore.get<ESM::NPC>().find ("player"), *this);
         mRendering->attachCameraTo(mPlayer->getPlayer());

components/esm/loadcell.cpp

@@ -201,6 +201,7 @@ bool Cell::getNextRef(ESMReader &esm, CellRef &ref)
         ref.mRefnum &= 0x00ffffff; // delete old plugin ID
         const ESM::ESMReader::MasterList &masters = esm.getMasters();
         global = masters[local-1].index + 1;
+        std::cout << "moved ref: " << local << " " << global << std::endl;
         ref.mRefnum |= global << 24; // insert global plugin ID
     }
     else