handle late naming of first object in OBJ loader

lib/mittsu/loaders/obj_loader.rb

@@ -53,7 +53,7 @@ def parse_line(line)
 
       when FACE_PATTERN         then parse_face(line)
 
-      when OBJECT_PATTERN       then new_object($1) and reset_vertices
+      when OBJECT_PATTERN       then handle_object($1)
       when GROUP_PATTERN        # ignore
       when SMOOTH_GROUP_PATTERN # ignore
 
@@ -105,9 +105,13 @@ def relevant_lines(raw_lines)
       raw_lines.split("\n").map(&:strip).reject(&:empty?).reject{|l| l.start_with? '#'}
     end
 
-    def new_object(object_name = '')
-      end_object
-      @object = Object3D.new
+    def handle_object(object_name = '')
+      unless @object&.name.nil? # Name the first object if it exists and hasn't been named yet
+        end_object
+        reset_vertices
+        @object = nil
+      end
+      @object ||= Object3D.new
       @object.name = object_name
     end
 
@@ -120,7 +124,7 @@ def end_object
 
     def new_mesh
       end_mesh
-      new_object if @object.nil?
+      handle_object if @object.nil?
       @geometry = Geometry.new
       @mesh = Mesh.new(@geometry, @material || MeshLambertMaterial.new)
       @mesh.name = @object.name

test/loaders/test_obj_loader.rb

@@ -485,18 +485,16 @@ def test_parse_with_objects
     loader = Mittsu::OBJLoader.new
 
     object = loader.parse """
-o square1
-
 v 0.0 1.0 0.0
 v 0.0 0.0 0.0
 v 1.0 0.0 0.0
 v 1.0 1.0 0.0
 
+o square1
 f 1 2 4
 f 2 3 4
 
 o square2
-
 v 0.0 2.0 0.0
 v 0.0 0.0 0.0
 v 2.0 0.0 0.0
@@ -518,6 +516,7 @@ def test_parse_with_objects
       square_mesh = square.children.first
       assert_kind_of Mittsu::Geometry, square_mesh.geometry, "#{square.name} geometry"
       assert_equal square.name, square_mesh.name, "#{square.name} geometry name"
+      assert_equal 4, square_mesh.geometry.vertices.count
 
       [
         Mittsu::Vector3.new(0.0, 1.0, 0.0).multiply_scalar(i+1),