some physics stuff idk

components/nif/physics.cpp

@@ -29,4 +29,26 @@ namespace Nif
         shape.post(nif);
     }
 
+    void bhkEntity::read(NIFStream *nif)
+    {
+        bhkWorldObject::read(nif);
+        responseType = static_cast<hkResponseType>(nif->getChar());
+        nif->skip(1); // Unused
+        processContactDelay = nif->getUShort();
+    }
+
+    void HavokMaterial::read(NIFStream *nif)
+    {
+        if (nif->getVersion() <= NIFFile::NIFVersion::VER_OB_OLD)
+            nif->skip(4); // Unknown
+        material = nif->getUInt();
+    }
+
+    void hkSubPartData::read(NIFStream *nif)
+    {
+        havokFilter = nif->getUInt();
+        numVertices = nif->getUInt();
+        material.read(nif);
+    }
+
 } // Namespace

components/nif/physics.hpp

@@ -57,5 +57,33 @@ struct bhkWorldObject : public Record
 
 struct bhkShape : public Record {};
 
+enum class hkResponseType : uint8_t
+{
+    Invalid = 0,
+    SimpleContact = 1,
+    Reporting = 2,
+    None = 3
+};
+
+struct bhkEntity : public bhkWorldObject
+{
+    hkResponseType responseType;
+    unsigned short processContactDelay;
+    void read(NIFStream *nif) override;
+};
+
+struct HavokMaterial
+{
+    unsigned int material;
+    void read(NIFStream *nif);
+};
+
+struct hkSubPartData
+{
+    HavokMaterial material;
+    unsigned int numVertices, havokFilter;
+    void read(NIFStream *nif);
+};
+
 } // Namespace
 #endif