Revert "Handle RootCollisionNode, attached to non-root node (bug #4311)"

This reverts commit ec9a1b0d05.

CHANGELOG.md

@@ -57,7 +57,6 @@
     Bug #4293: Faction members are not aware of faction ownerships in barter
     Bug #4304: "Follow" not working as a second AI package
     Bug #4307: World cleanup should remove dead bodies only if death animation is finished
-    Bug #4311: OpenMW does not handle RootCollisionNode correctly
     Bug #4327: Missing animations during spell/weapon stance switching
     Bug #4333: Keyboard navigation in containers is not intuitive
     Bug #4358: Running animation is interrupted when magic mode is toggled

components/nifbullet/bulletnifloader.cpp

@@ -96,17 +96,14 @@ osg::ref_ptr<Resource::BulletShape> BulletNifLoader::load(const Nif::File& nif)
     }
     else
     {
+        bool autogenerated = hasAutoGeneratedCollision(node);
+
         // files with the name convention xmodel.nif usually have keyframes stored in a separate file xmodel.kf (see Animation::addAnimSource).
         // assume all nodes in the file will be animated
         const auto filename = nif.getFilename();
         const bool isAnimated = pathFileNameStartsWithX(filename);
 
-        // If the mesh has RootCollisionNode, attached to actual root node, use it as collision mesh
-        const Nif::Node* rootCollisionNode = getCollisionNode(node);
-        if (rootCollisionNode)
-            handleNode(filename, rootCollisionNode, 0, false, isAnimated, false);
-        else
-            handleNode(filename, node, 0, true, isAnimated, true);
+        handleNode(node, 0, autogenerated, isAnimated, autogenerated);
 
         if (mCompoundShape)
         {
@@ -163,34 +160,25 @@ bool BulletNifLoader::findBoundingBox(const Nif::Node* node, int flags)
     return false;
 }
 
-const Nif::Node* BulletNifLoader::getCollisionNode(const Nif::Node* rootNode)
+bool BulletNifLoader::hasAutoGeneratedCollision(const Nif::Node* rootNode)
 {
     const Nif::NiNode *ninode = dynamic_cast<const Nif::NiNode*>(rootNode);
     if(ninode)
     {
-        // If root NiNode has only other NiNode as child, consider it as a wrapper, not as actual root node
         const Nif::NodeList &list = ninode->children;
-        if (list.length() == 1 &&
-            rootNode->recType == Nif::RC_NiNode &&
-            list[0].getPtr()->recType == Nif::RC_NiNode)
-        {
-            return getCollisionNode(list[0].getPtr());
-        }
-
-        for(size_t i = 0; i < list.length(); i++)
+        for(size_t i = 0;i < list.length();i++)
         {
-            if(list[i].empty())
-                continue;
-
-            const Nif::Node* childNode = list[i].getPtr();
-            if(childNode->recType == Nif::RC_RootCollisionNode)
-                return childNode;
+            if(!list[i].empty())
+            {
+                if(list[i].getPtr()->recType == Nif::RC_RootCollisionNode)
+                    return false;
+            }
         }
     }
-    return nullptr;
+    return true;
 }
 
-void BulletNifLoader::handleNode(const std::string& fileName, const Nif::Node *node, int flags,
+void BulletNifLoader::handleNode(const Nif::Node *node, int flags,
                                          bool isCollisionNode, bool isAnimated, bool autogenerated)
 {
     // Accumulate the flags from all the child nodes. This works for all
@@ -203,9 +191,6 @@ void BulletNifLoader::handleNode(const std::string& fileName, const Nif::Node *n
 
     isCollisionNode = isCollisionNode || (node->recType == Nif::RC_RootCollisionNode);
 
-    if (node->recType == Nif::RC_RootCollisionNode && autogenerated)
-        Log(Debug::Info) << "Found RootCollisionNode attached to non-root node in " << fileName << ". Treat it as a common NiTriShape.";
-
     // Don't collide with AvoidNode shapes
     if(node->recType == Nif::RC_AvoidNode)
         flags |= 0x800;
@@ -234,6 +219,7 @@ void BulletNifLoader::handleNode(const std::string& fileName, const Nif::Node *n
                 // Marker can still have collision if the model explicitely specifies it via a RootCollisionNode.
                 return;
             }
+
         }
     }
 
@@ -256,7 +242,7 @@ void BulletNifLoader::handleNode(const std::string& fileName, const Nif::Node *n
         for(size_t i = 0;i < list.length();i++)
         {
             if(!list[i].empty())
-                handleNode(fileName, list[i].getPtr(), flags, isCollisionNode, isAnimated, autogenerated);
+                handleNode(list[i].getPtr(), flags, isCollisionNode, isAnimated, autogenerated);
         }
     }
 }

components/nifbullet/bulletnifloader.hpp

@@ -55,9 +55,9 @@ public:
 private:
     bool findBoundingBox(const Nif::Node* node, int flags = 0);
 
-    void handleNode(const std::string& fileName, Nif::Node const *node, int flags, bool isCollisionNode, bool isAnimated=false, bool autogenerated=false);
+    void handleNode(Nif::Node const *node, int flags, bool isCollisionNode, bool isAnimated=false, bool autogenerated=false);
 
-    const Nif::Node* getCollisionNode(const Nif::Node* rootNode);
+    bool hasAutoGeneratedCollision(const Nif::Node *rootNode);
 
     void handleNiTriShape(const Nif::NiTriShape *shape, int flags, const osg::Matrixf& transform, bool isAnimated);