fixes

workshop/controllers/core/selection.lua

@@ -12,6 +12,7 @@ local boundingBox = engine.construct("block", workspace, {
 })
 
 controller.selection = {}
+controller.destroyingListeners = {}
 
 controller.callbacks = {}
 
@@ -27,14 +28,34 @@ end
 
 controller.setSelection = function(obj)
 	controller.selection = {}
+
+	for _,v in pairs(controller.destroyingListeners) do
+		v:disconnect()
+	end
+	controller.destroyingListeners = {}
+
 	controller.addSelection(obj)
 end
 
+local function destroyListener()
+	for i,v in pairs(controller.selection) do
+		if v == self.object then
+			table.remove(controller.selection, i)
+			break
+		end
+	end
+
+	controller.destroyingListeners[self.object] = nil
+
+	self:disconnect()
+end
+
 controller.addSelection = function(obj)
 	if type(obj) == "table" then
 		for _,v in pairs(obj) do
 			if v.isA and v:isA("baseClass") then
 				table.insert(controller.selection, v)
+				controller.destroyingListeners[v] = v:once("destroying", destroyListener)
 			else
 				warn("selecting unknown object")
 			end
@@ -42,6 +63,7 @@ controller.addSelection = function(obj)
 	else
 		if obj.isA and obj:isA("baseClass") then
 			table.insert(controller.selection, obj)
+			controller.destroyingListeners[obj] = obj:once("destroying", destroyListener)
 		else
 			warn("selecting unknown object")
 		end
@@ -64,17 +86,19 @@ end
 local boundingEvents = {}
 
 local function boundUpdate() 
+	if not boundingBox or not boundingBox.alive then return end
+
 	--inefficient, is called for each change
 	local bounds = aabb()
 
-	if #controller.selection > 0 then
+	if #controller.selection > 0 and controller.selection[1].position then
 		bounds.min = controller.selection[1].position
 		bounds.max = controller.selection[1].position
-	end
 
-	for _,v in pairs(controller.selection) do
+		for _,v in pairs(controller.selection) do
-		bounds:expand(v.position + (v.size/2))
+			bounds:expand(v.position + (v.size/2))
-		bounds:expand(v.position - (v.size/2))
+			bounds:expand(v.position - (v.size/2))
+		end
 	end
 
 	boundingBox.position = bounds:getCentre()
@@ -87,17 +111,21 @@ controller.registerCallback(function()
 	end
 	boundingEvents = {}
 
+	if not boundingBox or not boundingBox.alive then return end
+
 	local bounds = aabb()
 
-	if #controller.selection > 0 then
+	if #controller.selection > 0 and type(controller.selection[1].position) == "vector3" then
 		bounds.min = controller.selection[1].position
 		bounds.max = controller.selection[1].position
-	end
 
-	for _,v in pairs(controller.selection) do
+		for _,v in pairs(controller.selection) do
-		bounds:expand(v.position + (v.size/2))
+			if type(v.position) == "vector3" then
-		bounds:expand(v.position - (v.size/2))
+				bounds:expand(v.position + (v.size/2))
-		table.insert(boundingEvents, v:changed(boundUpdate))
+				bounds:expand(v.position - (v.size/2))
+				table.insert(boundingEvents, v:changed(boundUpdate))
+			end
+		end
 	end
 
 	boundingBox.position = bounds:getCentre()

workshop/controllers/ui/components/hierarchy.lua

@@ -2,6 +2,7 @@ local controller = {}
 
 local shared = require("tevgit:workshop/controllers/shared.lua")
 local selection = require("tevgit:workshop/controllers/core/selection.lua")
+local context = require("tevgit:workshop/controllers/ui/core/contextMenu.lua")
 local ui = require("tevgit:workshop/controllers/ui/core/ui.lua")
 
 -- store icons for each class type
@@ -189,7 +190,7 @@ local function createHierarchyButton(object, guiParent)
 
     if object:isA("luaSharedFolder") or object:isA("luaServerFolder") or
         object:isA("luaClientFolder") then
-        contextMenu.bind(btn, luaFolderContextOptions)
+        context.bind(btn, context.exampleOptions)
     else
         -- selectionController.applyContext(btn)
     end

workshop/controllers/ui/core/contextMenu.lua

@@ -88,4 +88,14 @@ controller.generateMenu = function(options, position)
 	menu.size = guiCoord(0, 160, 0, yPos)
 end
 
+controller.bind = function(object, options)
+	if not object.mouseRightReleased then
+		return warn("Could not hook onto mouse event?!")
+	end
+
+	object:on("mouseRightReleased", function()
+		controller.generateMenu(options)
+	end)
+end
+
 return controller