use string intersection instead of set intersections

also when selection animated nodes, make sure to intersect with the current set first so that we don't export all animated nodes in the scene.

Author: vkovec

Assets/Integrations/Autodesk/maya/scripts/unityCommands.mel

@@ -238,9 +238,7 @@ proc unityExport(int $exportAnim){
         return;
     }
 
-    // create temporary set containing selection
-    string $selectedSet = `sets`;
-    $selectedSetList = {$selectedSet};
+    string $myIntersector = `stringArrayIntersector`;
 
     $i = 0;
     string $setsToExport[];
@@ -249,17 +247,23 @@ proc unityExport(int $exportAnim){
             continue;
         }
 
-        if(`sets -isIntersecting $exportSet $selectedSetList` ||
+        stringArrayIntersector -edit -reset $myIntersector;
+        stringArrayIntersector -edit -intersect $origSelection $myIntersector;
+        
+        string $exportSetContents[] = `listConnections $exportSet`; 
+        
+        stringArrayIntersector -edit -intersect $exportSetContents $myIntersector;
+        
+        string $intersection[] = `stringArrayIntersector -query $myIntersector`;
+        
+        if(size($intersection) > 0 ||
             stringArrayContains($exportSet, $origSelection)){
 
             $setsToExport[$i] = $exportSet;
             $i++;
         }
     }
 
-    // delete temporary selection set
-    delete $selectedSet;
-    
     // if selection doesn't belong to a set, export to a new file
     if(size($setsToExport) <= 0){
         eval "SendToUnitySelection";
@@ -269,12 +273,19 @@ proc unityExport(int $exportAnim){
     for($unitySet in $setsToExport){
         print ("exporting set: " + $unitySet);
 
-        select -r -ne $unitySet;
+        string $unitySetContents[] = `listConnections $unitySet`;
 
         if($exportAnim){
             string $animCurveSelect[] = `ls -typ animCurve`;
             string $animatedTransforms[] = `listConnections -t transform $animCurveSelect`;
-            select -r $animatedTransforms;
+            
+            stringArrayIntersector -edit -reset $myIntersector;
+            stringArrayIntersector -edit -intersect $animatedTransforms $myIntersector;
+            stringArrayIntersector -edit -intersect $unitySetContents $myIntersector;
+            
+            string $setAnimatedTransforms[] = `stringArrayIntersector -query $myIntersector`;
+            
+            select -r $setAnimatedTransforms;
         }
 
         $pathAttr = $UnityFbxFilePathAttr;
@@ -295,6 +306,9 @@ proc unityExport(int $exportAnim){
         }
     }
 
+    // Delete the intersector
+    deleteUI $myIntersector;
+    
     select -cl;
     if (size($origSelection) > 0){    
         select -add -ne $origSelection;