ESSImport: player is placed in correct cell, npc cellrefs work

apps/essimporter/CMakeLists.txt

@@ -5,9 +5,11 @@ set(ESSIMPORTER_FILES
     importnpcc.cpp
     importcrec.cpp
     importcellref.cpp
-    importacdt.hpp
+    importacdt.cpp
     importercontext.cpp
     converter.cpp
+    convertacdt.cpp
+    convertnpcc.cpp
 )
 
 add_executable(openmw-essimporter

apps/essimporter/convertacdt.cpp

@@ -0,0 +1,42 @@
+#include "convertacdt.hpp"
+
+namespace ESSImport
+{
+
+    int translateDynamicIndex(int mwIndex)
+    {
+        if (mwIndex == 1)
+            return 2;
+        else if (mwIndex == 2)
+            return 1;
+        return mwIndex;
+    }
+
+    void convertACDT (const ACDT& acdt, ESM::CreatureStats& cStats)
+    {
+        for (int i=0; i<3; ++i)
+        {
+            int writeIndex = translateDynamicIndex(i);
+            cStats.mDynamic[writeIndex].mBase = acdt.mDynamic[i][1];
+            cStats.mDynamic[writeIndex].mMod = acdt.mDynamic[i][1];
+            cStats.mDynamic[writeIndex].mCurrent = acdt.mDynamic[i][0];
+        }
+        for (int i=0; i<8; ++i)
+        {
+            cStats.mAttributes[i].mBase = acdt.mAttributes[i][1];
+            cStats.mAttributes[i].mMod = acdt.mAttributes[i][0];
+            cStats.mAttributes[i].mCurrent = acdt.mAttributes[i][0];
+        }
+    }
+
+    void convertNpcData (const ActorData& actorData, ESM::NpcStats& npcStats)
+    {
+        for (int i=0; i<ESM::Skill::Length; ++i)
+        {
+            npcStats.mSkills[i].mRegular.mMod = actorData.mSkills[i][1];
+            npcStats.mSkills[i].mRegular.mCurrent = actorData.mSkills[i][1];
+            npcStats.mSkills[i].mRegular.mBase = actorData.mSkills[i][0];
+        }
+    }
+
+}

apps/essimporter/convertacdt.hpp

@@ -0,0 +1,22 @@
+#ifndef OPENMW_ESSIMPORT_CONVERTACDT_H
+#define OPENMW_ESSIMPORT_CONVERTACDT_H
+
+#include <components/esm/creaturestats.hpp>
+#include <components/esm/npcstats.hpp>
+#include <components/esm/loadskil.hpp>
+
+#include "importacdt.hpp"
+
+namespace ESSImport
+{
+
+    // OpenMW uses Health,Magicka,Fatigue, MW uses Health,Fatigue,Magicka
+    int translateDynamicIndex(int mwIndex);
+
+
+    void convertACDT (const ACDT& acdt, ESM::CreatureStats& cStats);
+
+    void convertNpcData (const ActorData& actorData, ESM::NpcStats& npcStats);
+}
+
+#endif

apps/essimporter/converter.cpp

@@ -43,8 +43,15 @@ namespace ESSImport
     {
         ESM::Cell cell;
         std::string id = esm.getHNString("NAME");
+        cell.mName = id;
         cell.load(esm, false);
 
+        // note if the player is in a nameless exterior cell, we will assign the cellId later based on player position
+        if (id == mContext->mPlayerCellName)
+        {
+            mContext->mPlayer.mCellId = cell.getCellId();
+        }
+
         Cell newcell;
         newcell.mCell = cell;
 
@@ -55,7 +62,12 @@ namespace ESSImport
         unsigned char nam8[32];
         if (esm.isNextSub("NAM8"))
         {
-            esm.getHExact(nam8, 32);
+            esm.getSubHeader();
+            // FIXME: different size in interior cells for some reason
+            if (esm.getSubSize() == 36)
+                esm.skip(4);
+
+            esm.getExact(nam8, 32);
 
             newcell.mFogOfWar.reserve(16*16);
             for (int x=0; x<16; ++x)
@@ -87,6 +99,8 @@ namespace ESSImport
         }
 
         newcell.mRefs = cellrefs;
+
+        // FIXME: map by ID for exterior cells
         mCells[id] = newcell;
     }
 
@@ -127,20 +141,36 @@ namespace ESSImport
                             std::make_pair(refIndex, out.mRefID));
                 if (crecIt != mContext->mCreatureChanges.end())
                 {
-                    std::cerr << "Can't' find CREC for " << refIndex << " " << out.mRefID << std::endl;
-                    continue;
-                }
-
                     ESM::CreatureState objstate;
-                objstate.mCount = 1;
+                    objstate.blank();
+                    convertACDT(cellref.mActorData.mACDT, objstate.mCreatureStats);
                     objstate.mEnabled = cellref.mEnabled;
-                objstate.mHasLocals = 0;
-                objstate.mLocalRotation[0] = objstate.mLocalRotation[1] = objstate.mLocalRotation[2] = 0;
                     objstate.mPosition = cellref.mPos;
                     objstate.mRef = out;
                     objstate.mRef.mRefNum = cellref.mRefNum;
                     esm.writeHNT ("OBJE", ESM::REC_CREA);
                     objstate.save(esm);
+                    continue;
+                }
+
+                std::map<std::pair<int, std::string>, NPCC>::const_iterator npccIt = mContext->mNpcChanges.find(
+                            std::make_pair(refIndex, out.mRefID));
+                if (npccIt != mContext->mNpcChanges.end())
+                {
+                    ESM::NpcState objstate;
+                    objstate.blank();
+                    convertACDT(cellref.mActorData.mACDT, objstate.mCreatureStats);
+                    convertNpcData(cellref.mActorData, objstate.mNpcStats);
+                    objstate.mEnabled = cellref.mEnabled;
+                    objstate.mPosition = cellref.mPos;
+                    objstate.mRef = out;
+                    objstate.mRef.mRefNum = cellref.mRefNum;
+                    esm.writeHNT ("OBJE", ESM::REC_NPC_);
+                    objstate.save(esm);
+                    continue;
+                }
+
+                std::cerr << "Can't find type for " << refIndex << " " << out.mRefID << std::endl;
             }
 
             esm.endRecord(ESM::REC_CSTA);

apps/essimporter/converter.hpp

@@ -14,6 +14,9 @@
 #include "importercontext.hpp"
 #include "importcellref.hpp"
 
+#include "convertacdt.hpp"
+#include "convertnpcc.hpp"
+
 namespace ESSImport
 {
 
@@ -151,9 +154,10 @@ public:
         npcc.load(esm);
         if (id == "PlayerSaveGame")
         {
-            mContext->mPlayer.mObject.mNpcStats.mReputation = npcc.mNPDT.mReputation;
+            convertNPCC(npcc, mContext->mPlayer.mObject);
         }
-        //mContext->mNpcChanges.insert(std::make_pair(std::make_pair(npcc.mIndex,id), crec));
+        else
+            mContext->mNpcChanges.insert(std::make_pair(std::make_pair(npcc.mIndex,id), npcc));
     }
 };
 
@@ -168,36 +172,10 @@ public:
         mContext->mPlayer.mObject.mPosition = refr.mPos;
 
         ESM::CreatureStats& cStats = mContext->mPlayer.mObject.mCreatureStats;
-        for (int i=0; i<3; ++i)
+        convertACDT(refr.mActorData.mACDT, cStats);
-        {
-            int writeIndex = translateDynamicIndex(i);
-            cStats.mDynamic[writeIndex].mBase = refr.mACDT.mDynamic[i][1];
-            cStats.mDynamic[writeIndex].mMod = refr.mACDT.mDynamic[i][1];
-            cStats.mDynamic[writeIndex].mCurrent = refr.mACDT.mDynamic[i][0];
-        }
-        for (int i=0; i<8; ++i)
-        {
-            cStats.mAttributes[i].mBase = refr.mACDT.mAttributes[i][1];
-            cStats.mAttributes[i].mMod = refr.mACDT.mAttributes[i][0];
-            cStats.mAttributes[i].mCurrent = refr.mACDT.mAttributes[i][0];
-        }
-        ESM::NpcStats& npcStats = mContext->mPlayer.mObject.mNpcStats;
-        for (int i=0; i<ESM::Skill::Length; ++i)
-        {
-            npcStats.mSkills[i].mRegular.mMod = refr.mSkills[i][1];
-            npcStats.mSkills[i].mRegular.mCurrent = refr.mSkills[i][1];
-            npcStats.mSkills[i].mRegular.mBase = refr.mSkills[i][0];
-        }
-    }
 
-    // OpenMW uses Health,Magicka,Fatigue, MW uses Health,Fatigue,Magicka
+        ESM::NpcStats& npcStats = mContext->mPlayer.mObject.mNpcStats;
-    int translateDynamicIndex(int mwIndex)
+        convertNpcData(refr.mActorData, npcStats);
-    {
-        if (mwIndex == 1)
-            return 2;
-        else if (mwIndex == 2)
-            return 1;
-        return mwIndex;
     }
 };
 

apps/essimporter/convertnpcc.cpp

@@ -0,0 +1,22 @@
+#include "convertnpcc.hpp"
+
+namespace ESSImport
+{
+
+    void convertNPCC(const NPCC &npcc, ESM::NpcState &npcState)
+    {
+        npcState.mNpcStats.mReputation = npcc.mNPDT.mReputation;
+
+        for (std::vector<NPCC::InventoryItem>::const_iterator it = npcc.mInventory.begin();
+             it != npcc.mInventory.end(); ++it)
+        {
+            ESM::ObjectState obj;
+            obj.blank();
+            obj.mRef.mRefID = it->mId;
+            obj.mRef.mCharge = it->mCondition;
+
+            // Don't know type of object :( change save format?
+            // npcState.mInventory.mItems.push_back(std::make_pair(obj, std::make_pair(0,0)));
+        }
+    }
+}

apps/essimporter/convertnpcc.hpp

@@ -0,0 +1,15 @@
+#ifndef OPENMW_ESSIMPORT_CONVERTNPCC_H
+#define OPENMW_ESSIMPORT_CONVERTNPCC_H
+
+#include "importnpcc.hpp"
+
+#include <components/esm/npcstate.hpp>
+
+namespace ESSImport
+{
+
+    void convertNPCC (const NPCC& npcc, ESM::NpcState& npcState);
+
+}
+
+#endif

apps/essimporter/importacdt.cpp

@@ -0,0 +1,28 @@
+#include "importacdt.hpp"
+
+#include <components/esm/esmreader.hpp>
+
+namespace ESSImport
+{
+
+    void ActorData::load(ESM::ESMReader &esm)
+    {
+        esm.getHNT(mACDT, "ACDT");
+
+        ACSC acsc;
+        esm.getHNOT(acsc, "ACSC");
+        esm.getHNOT(acsc, "ACSL");
+
+        if (esm.isNextSub("CHRD")) // npc only
+                esm.getHExact(mSkills, 27*2*sizeof(int));
+
+        if (esm.isNextSub("CRED")) // creature only
+            esm.getHExact(mCombatStats, 3*2*sizeof(int));
+
+        mScript = esm.getHNOString("SCRI");
+
+        if (esm.isNextSub("ND3D"))
+            esm.skipHSub();
+    }
+
+}

apps/essimporter/importacdt.hpp

@@ -1,9 +1,17 @@
 #ifndef OPENMW_ESSIMPORT_ACDT_H
 #define OPENMW_ESSIMPORT_ACDT_H
 
+#include <string>
+
+namespace ESM
+{
+    struct ESMReader;
+}
+
 namespace ESSImport
 {
 
+
     /// Actor data, shared by (at least) REFR and CellRef
     struct ACDT
     {
@@ -14,6 +22,22 @@ namespace ESSImport
         unsigned char mUnknown3[120];
     };
 
+    struct ActorData
+    {
+        ACDT mACDT;
+
+        int mSkills[27][2];
+
+        // creature combat stats, base and modified
+        // I think these can be ignored in the conversion, because it is not possible
+        // to change them ingame
+        int mCombatStats[3][2];
+
+        std::string mScript;
+
+        void load(ESM::ESMReader& esm);
+    };
+
     /// Unknown, shared by (at least) REFR and CellRef
     struct ACSC
     {

apps/essimporter/importcellref.cpp

@@ -16,22 +16,19 @@ namespace ESSImport
 
         mIndexedRefId = esm.getHNString("NAME");
 
-        esm.getHNT(mACDT, "ACDT");
+        // the following two occur in ESM::CellRef too (Charge and Gold),
+        // but may have entirely different meanings here
+        int intv;
+        esm.getHNOT(intv, "INTV");
+        int nam9;
+        esm.getHNOT(nam9, "NAM9");
 
-        ACSC acsc;
+        mActorData.load(esm);
-        esm.getHNOT(acsc, "ACSC");
-        esm.getHNOT(acsc, "ACSL");
-
-        if (esm.isNextSub("CRED"))
-            esm.skipHSub();
-
-        if (esm.isNextSub("ND3D"))
-            esm.skipHSub();
 
         mEnabled = true;
         esm.getHNOT(mEnabled, "ZNAM");
 
-        esm.getHNOT(mPos, "DATA", 24);
+        esm.getHNT(mPos, "DATA", 24);
     }
 
 }

apps/essimporter/importcellref.hpp

@@ -21,10 +21,12 @@ namespace ESSImport
         std::string mIndexedRefId;
         ESM::RefNum mRefNum;
 
-        ACDT mACDT;
+        ActorData mActorData;
 
         ESM::Position mPos;
 
+        std::string mScript;
+
         bool mEnabled;
 
         void load(ESM::ESMReader& esm);

apps/essimporter/importer.cpp

@@ -185,6 +185,9 @@ namespace ESSImport
 
         Context context;
 
+        const ESM::Header& header = esm.getHeader();
+        context.mPlayerCellName = header.mGameData.mCurrentCell.toString();
+
         const unsigned int recREFR = ESM::FourCC<'R','E','F','R'>::value;
         const unsigned int recPCDT = ESM::FourCC<'P','C','D','T'>::value;
         const unsigned int recFMAP = ESM::FourCC<'F','M','A','P'>::value;
@@ -234,8 +237,6 @@ namespace ESSImport
             }
         }
 
-        const ESM::Header& header = esm.getHeader();
-
         ESM::ESMWriter writer;
 
         writer.setFormat (ESM::Header::CurrentFormat);
@@ -247,6 +248,11 @@ namespace ESSImport
         writer.setAuthor("");
         writer.setDescription("");
         writer.setRecordCount (0);
+
+        for (std::vector<ESM::Header::MasterData>::const_iterator it = header.mMaster.begin();
+             it != header.mMaster.end(); ++it)
+            writer.addMaster (it->name, 0); // not using the size information anyway -> use value of 0
+
         writer.save (stream);
 
         ESM::SavedGame profile;
@@ -298,6 +304,15 @@ namespace ESSImport
         }
 
         writer.startRecord(ESM::REC_PLAY);
+        if (context.mPlayer.mCellId.mPaged)
+        {
+            // exterior cell -> determine cell coordinates based on position
+            const int cellSize = 8192;
+            int cellX = std::floor(context.mPlayer.mObject.mPosition.pos[0]/cellSize);
+            int cellY = std::floor(context.mPlayer.mObject.mPosition.pos[1]/cellSize);
+            context.mPlayer.mCellId.mIndex.mX = cellX;
+            context.mPlayer.mCellId.mIndex.mY = cellY;
+        }
         context.mPlayer.save(writer);
         writer.endRecord(ESM::REC_PLAY);
     }

apps/essimporter/importercontext.hpp

@@ -17,6 +17,9 @@ namespace ESSImport
 
     struct Context
     {
+        // set from the TES3 header
+        std::string mPlayerCellName;
+
         ESM::Player mPlayer;
         ESM::NPC mPlayerBase;
         std::string mCustomPlayerClassName;
@@ -38,33 +41,8 @@ namespace ESSImport
             //mPlayer.mLastKnownExteriorPosition
             mPlayer.mHasMark = 0; // TODO
             mPlayer.mCurrentCrimeId = 0; // TODO
-            mPlayer.mObject.mCount = 1;
+            mPlayer.mObject.blank();
-            mPlayer.mObject.mEnabled = 1;
-            mPlayer.mObject.mHasLocals = false;
             mPlayer.mObject.mRef.mRefID = "player"; // REFR.mRefID would be PlayerSaveGame
-            mPlayer.mObject.mCreatureStats.mHasAiSettings = true;
-            mPlayer.mObject.mCreatureStats.mDead = false;
-            mPlayer.mObject.mCreatureStats.mDied = false;
-            mPlayer.mObject.mCreatureStats.mKnockdown = false;
-            mPlayer.mObject.mCreatureStats.mKnockdownOneFrame = false;
-            mPlayer.mObject.mCreatureStats.mKnockdownOverOneFrame = false;
-            mPlayer.mObject.mCreatureStats.mHitRecovery = false;
-            mPlayer.mObject.mCreatureStats.mBlock = false;
-            mPlayer.mObject.mCreatureStats.mMovementFlags = 0;
-            mPlayer.mObject.mCreatureStats.mAttackStrength = 0.f;
-            mPlayer.mObject.mCreatureStats.mFallHeight = 0.f;
-            mPlayer.mObject.mCreatureStats.mRecalcDynamicStats = false;
-            mPlayer.mObject.mCreatureStats.mDrawState = 0;
-            mPlayer.mObject.mCreatureStats.mDeathAnimation = 0;
-            mPlayer.mObject.mNpcStats.mIsWerewolf = false;
-            mPlayer.mObject.mNpcStats.mTimeToStartDrowning = 20;
-            mPlayer.mObject.mNpcStats.mLevelProgress = 0;
-            mPlayer.mObject.mNpcStats.mDisposition = 0;
-            mPlayer.mObject.mNpcStats.mTimeToStartDrowning = 20;
-            mPlayer.mObject.mNpcStats.mReputation = 0;
-            mPlayer.mObject.mNpcStats.mCrimeId = -1;
-            mPlayer.mObject.mNpcStats.mWerewolfKills = 0;
-            mPlayer.mObject.mNpcStats.mProfit = 0;
         }
     };
 

apps/essimporter/importnpcc.cpp

@@ -7,12 +7,29 @@ namespace ESSImport
 
     void NPCC::load(ESM::ESMReader &esm)
     {
+        mIndex = 0;
+        esm.getHNOT(mIndex, "INDX");
+
         esm.getHNT(mNPDT, "NPDT");
 
-        // container:
+        while (esm.isNextSub("NPCO"))
-        // XIDX
+        {
-        // XHLT - condition
+            InventoryItem item;
-        // WIDX - equipping?
+            item.mId = esm.getHString();
+
+            if (esm.isNextSub("XIDX"))
+                esm.skipHSub();
+
+            item.mCondition = -1;
+            esm.getHNOT(item.mCondition, "XHLT");
+            mInventory.push_back(item);
+        }
+
+        while (esm.isNextSub("WIDX"))
+        {
+            // equipping?
+            esm.skipHSub();
+        }
     }
 
 }

apps/essimporter/importnpcc.hpp

@@ -1,7 +1,6 @@
 #ifndef OPENMW_ESSIMPORT_NPCC_H
 #define OPENMW_ESSIMPORT_NPCC_H
 
-#include <components/esm/loadnpc.hpp>
 #include <components/esm/loadcont.hpp>
 
 namespace ESM
@@ -12,7 +11,7 @@ namespace ESM
 namespace ESSImport
 {
 
-    struct NPCC : public ESM::NPC
+    struct NPCC
     {
         struct NPDT
         {
@@ -21,6 +20,15 @@ namespace ESSImport
             unsigned char unknown2[5];
         } mNPDT;
 
+        struct InventoryItem
+        {
+            std::string mId;
+            int mCondition;
+        };
+        std::vector<InventoryItem> mInventory;
+
+        int mIndex;
+
         void load(ESM::ESMReader &esm);
     };
 

apps/essimporter/importplayer.cpp

@@ -14,16 +14,7 @@ namespace ESSImport
         if (esm.isNextSub("STPR"))
             esm.skipHSub(); // ESS TODO
 
-        esm.getHNT(mACDT, "ACDT");
+        mActorData.load(esm);
-
-        ACSC acsc;
-        esm.getHNOT(acsc, "ACSC");
-        esm.getHNOT(acsc, "ACSL");
-
-        esm.getHNExact(mSkills, 27*2*sizeof(int), "CHRD");
-
-        if (esm.isNextSub("ND3D"))
-            esm.skipHSub(); // ESS TODO (1 byte)
 
         esm.getHNOT(mPos, "DATA", 24);
     }
@@ -45,6 +36,9 @@ namespace ESSImport
         if (esm.isNextSub("ENAM"))
             esm.skipHSub();
 
+        if (esm.isNextSub("LNAM"))
+            esm.skipHSub();
+
         while (esm.isNextSub("FNAM"))
         {
             FNAM fnam;

apps/essimporter/importplayer.hpp

@@ -21,15 +21,12 @@ namespace ESSImport
 /// Player-agnostic player data
 struct REFR
 {
-    ACDT mACDT;
+    ActorData mActorData;
 
     std::string mRefID;
     ESM::Position mPos;
     ESM::RefNum mRefNum;
 
-    int mSkills[27][2];
-    float mAttributes[8][2];
-
     void load(ESM::ESMReader& esm);
 };
 

components/esm/creaturestate.cpp

@@ -18,3 +18,9 @@ void ESM::CreatureState::save (ESMWriter &esm, bool inInventory) const
 
     mCreatureStats.save (esm);
 }
+
+void ESM::CreatureState::blank()
+{
+    ObjectState::blank();
+    mCreatureStats.blank();
+}

components/esm/creaturestate.hpp

@@ -14,6 +14,9 @@ namespace ESM
         InventoryState mInventory;
         CreatureStats mCreatureStats;
 
+        /// Initialize to default state
+        void blank();
+
         virtual void load (ESMReader &esm);
         virtual void save (ESMWriter &esm, bool inInventory = false) const;
     };

components/esm/creaturestats.cpp

@@ -218,6 +218,38 @@ void ESM::CreatureStats::save (ESMWriter &esm) const
     }
 
     esm.writeHNT("AISE", mHasAiSettings);
+    if (mHasAiSettings)
+    {
         for (int i=0; i<4; ++i)
             mAiSettings[i].save(esm);
     }
+}
+
+void ESM::CreatureStats::blank()
+{
+    mTradeTime.mHour = 0;
+    mTradeTime.mDay = 0;
+    mGoldPool = 0;
+    mActorId = 0;
+    mHasAiSettings = false;
+    mDead = false;
+    mDied = false;
+    mMurdered = false;
+    mFriendlyHits = 0;
+    mTalkedTo = false;
+    mAlarmed = false;
+    mAttacked = false;
+    mAttackingOrSpell = false;
+    mKnockdown = false;
+    mKnockdownOneFrame = false;
+    mKnockdownOverOneFrame = false;
+    mHitRecovery = false;
+    mBlock = false;
+    mMovementFlags = 0;
+    mAttackStrength = 0.f;
+    mFallHeight = 0.f;
+    mRecalcDynamicStats = false;
+    mDrawState = 0;
+    mDeathAnimation = 0;
+    mLevel = 1;
+}

components/esm/creaturestats.hpp

@@ -66,6 +66,9 @@ namespace ESM
         SpellState mSpells;
         ActiveSpells mActiveSpells;
 
+        /// Initialize to default state
+        void blank();
+
         void load (ESMReader &esm);
         void save (ESMWriter &esm) const;
     };

components/esm/npcstate.cpp

@@ -22,3 +22,10 @@ void ESM::NpcState::save (ESMWriter &esm, bool inInventory) const
 
     mCreatureStats.save (esm);
 }
+
+void ESM::NpcState::blank()
+{
+    ObjectState::blank();
+    mNpcStats.blank();
+    mCreatureStats.blank();
+}

components/esm/npcstate.hpp

@@ -16,6 +16,9 @@ namespace ESM
         NpcStats mNpcStats;
         CreatureStats mCreatureStats;
 
+        /// Initialize to default state
+        void blank();
+
         virtual void load (ESMReader &esm);
         virtual void save (ESMWriter &esm, bool inInventory = false) const;
     };

components/esm/npcstats.cpp

@@ -150,3 +150,18 @@ void ESM::NpcStats::save (ESMWriter &esm) const
     if (mCrimeId != -1)
         esm.writeHNT ("CRID", mCrimeId);
 }
+
+void ESM::NpcStats::blank()
+{
+    mIsWerewolf = false;
+    mDisposition = 0;
+    mBounty = 0;
+    mReputation = 0;
+    mWerewolfKills = 0;
+    mProfit = 0;
+    mLevelProgress = 0;
+    for (int i=0; i<8; ++i)
+        mSkillIncrease[i] = 0;
+    mTimeToStartDrowning = 20;
+    mCrimeId = -1;
+}

components/esm/npcstats.hpp

@@ -47,6 +47,9 @@ namespace ESM
         float mTimeToStartDrowning;
         int mCrimeId;
 
+        /// Initialize to default state
+        void blank();
+
         void load (ESMReader &esm);
         void save (ESMWriter &esm) const;
     };

components/esm/objectstate.cpp

@@ -48,4 +48,18 @@ void ESM::ObjectState::save (ESMWriter &esm, bool inInventory) const
     }
 }
 
+void ESM::ObjectState::blank()
+{
+    mRef.blank();
+    mHasLocals = 0;
+    mEnabled = false;
+    mCount = 1;
+    for (int i=0;i<3;++i)
+    {
+        mPosition.pos[i] = 0;
+        mPosition.rot[i] = 0;
+        mLocalRotation[i] = 0;
+    }
+}
+
 ESM::ObjectState::~ObjectState() {}

components/esm/objectstate.hpp

@@ -29,6 +29,9 @@ namespace ESM
         virtual void load (ESMReader &esm);
         virtual void save (ESMWriter &esm, bool inInventory = false) const;
 
+        /// Initialize to default state
+        void blank();
+
         virtual ~ObjectState();
     };
 }