save selection history

mn_execution.py

@@ -4,6 +4,7 @@
 from mn_cache import clearExecutionCache
 from mn_network_code_generator import getAllNetworkCodeStrings
 from bpy.props import *
+from mn_selection_utils import *
 
 COMPILE_BLOCKER = 0
 
@@ -80,6 +81,7 @@ def frameChangeHandler(scene):
 			updateAnimationTrees(False)
 @persistent
 def sceneUpdateHandler(scene):
+	updateSelectionSorting()
 	if scene.mn_settings.update.sceneUpdate and not isAnimationPlaying():
 		updateAnimationTrees(False)
 @persistent

nodes/object/mn_object_list_input.py

@@ -3,6 +3,7 @@
 from mn_node_base import AnimationNode
 from mn_execution import nodePropertyChanged
 from mn_utils import *
+from mn_selection_utils import *
 
 class mn_ObjectPropertyGroup(bpy.types.PropertyGroup):
 	object = bpy.props.StringProperty(name = "Object", default = "", update = nodePropertyChanged)
@@ -66,10 +67,10 @@ def removeItemFromList(self, index):
 	def setObject(self, object, index):
 		self.objects[index].object = object.name
 
-	def newItemsFromSelection(self, objects):
-		for object in objects:
+	def newItemsFromList(self, names):
+		for name in names:
 			item = self.objects.add()
-			item.object = object.name
+			item.object = name
 
 
 class AssignActiveObjectToListNode(bpy.types.Operator):
@@ -98,7 +99,6 @@ class SelectedObjectsToObjectListNode(bpy.types.Operator):
 	nodeName = bpy.props.StringProperty()
 
 	def execute(self, context):
-		selectedObjects = bpy.context.selected_objects
 		node = getNode(self.nodeTreeName, self.nodeName)
-		node.newItemsFromSelection(selectedObjects)
+		node.newItemsFromList(getSortedSelectedObjectNames())
 		return {'FINISHED'}	

utils/mn_selection_utils.py

@@ -0,0 +1,31 @@
+import bpy
+
+enableSelectionSorting = True
+
+sortedSelectionNames = []
+
+def getSortedSelectedObjectNames():
+	return sortedSelectionNames
+
+def updateSelectionSorting():
+	global sortedSelectionNames
+
+	selectedNames = getSelectedObjectNames()
+
+	if enableSelectionSorting:
+		newSortedSelection = []
+		for name in sortedSelectionNames:
+			if name in selectedNames:
+				newSortedSelection.append(name)
+		for name in selectedNames:
+			if name not in newSortedSelection:
+				newSortedSelection.append(name)
+		sortedSelectionNames = newSortedSelection
+	else:
+		sortedSelectionNames = selectedNames		
+
+def getSelectedObjectNames():
+	selectedNames = []
+	for object in bpy.context.selected_objects:
+		selectedNames.append(object.name)
+	return selectedNames