refactor for NiFltAnimationNode

components/nif/node.hpp

@@ -433,17 +433,17 @@ struct NiLODNode : public NiSwitchNode
 
 struct NiFltAnimationNode : public NiSwitchNode
 {
-    float mInterval;
+    float mDuration;
     enum Flags
     {
-        Flag_Reverse = 0x40
+        Flag_Swing = 0x40
     };
 
 
     void read(NIFStream *nif) override
     {
         NiSwitchNode::read(nif);
-        mInterval = nif->getFloat();
+        mDuration = nif->getFloat();
     }
 };
 

components/nifosg/nifloader.cpp

@@ -417,19 +417,33 @@ namespace NifOsg
             return switchNode;
         }
 
-        static osg::ref_ptr<osg::Sequence> handleSequenceNode(const Nif::NiFltAnimationNode* niFltAnimationNode)
+        static osg::ref_ptr<osg::Sequence> prepareSequenceNode(const Nif::Node* nifNode)
         {
+            const Nif::NiFltAnimationNode* niFltAnimationNode = static_cast<const Nif::NiFltAnimationNode*>(nifNode);
             osg::ref_ptr<osg::Sequence> sequenceNode (new osg::Sequence);
             sequenceNode->setName(niFltAnimationNode->name);
-            sequenceNode->setDefaultTime(niFltAnimationNode->mInterval);
-            sequenceNode->setMode(osg::Sequence::START);
-            if (niFltAnimationNode->flags & Nif::NiFltAnimationNode::Flag_Reverse)
-                sequenceNode->setDuration(0.2f, -1);
-            else
-                sequenceNode->setDuration(-0.2f, -1);
+            if (niFltAnimationNode->children.length()!=0)
+            {
+                if (niFltAnimationNode->flags & Nif::NiFltAnimationNode::Flag_Swing)
+                    sequenceNode->setDefaultTime(niFltAnimationNode->mDuration/(niFltAnimationNode->children.length()*2));
+                else
+                    sequenceNode->setDefaultTime(niFltAnimationNode->mDuration/niFltAnimationNode->children.length());
+            }
             return sequenceNode;
         }
 
+        static void activateSequenceNode(osg::Group* osgNode, const Nif::Node* nifNode)
+        {
+            const Nif::NiFltAnimationNode* niFltAnimationNode = static_cast<const Nif::NiFltAnimationNode*>(nifNode);
+            osg::Sequence* sequenceNode = static_cast<osg::Sequence*>(osgNode);
+            if (niFltAnimationNode->flags & Nif::NiFltAnimationNode::Flag_Swing)
+                sequenceNode->setInterval(osg::Sequence::SWING, 0,-1);
+            else
+                sequenceNode->setInterval(osg::Sequence::LOOP, 0,-1);
+            sequenceNode->setDuration(1.0f, -1);
+            sequenceNode->setMode(osg::Sequence::START);
+        }
+
         osg::ref_ptr<osg::Image> handleSourceTexture(const Nif::NiSourceTexture* st, Resource::ImageManager* imageManager)
         {
             if (!st)
@@ -727,8 +741,7 @@ namespace NifOsg
             }
             else if (nifNode->recType == Nif::RC_NiFltAnimationNode)
             {
-                const Nif::NiFltAnimationNode* niFltAnimationNode = static_cast<const Nif::NiFltAnimationNode*>(nifNode);
-                osg::ref_ptr<osg::Sequence> sequenceNode = handleSequenceNode(niFltAnimationNode);
+                osg::ref_ptr<osg::Sequence> sequenceNode = prepareSequenceNode(nifNode);
                 node->addChild(sequenceNode);
                 currentNode = sequenceNode;
             }
@@ -752,6 +765,9 @@ namespace NifOsg
                 }
             }
 
+            if (nifNode->recType == Nif::RC_NiFltAnimationNode)
+                activateSequenceNode(currentNode,nifNode);
+
             return node;
         }