Represents a timeline key.
        void ReadTimelineObject(XmlElement element, SpriterTimelineKey key, VariableType variableType)
        {
            SpriterTimelineObject obj = new SpriterTimelineObject();
            key.objects.Add(obj);

            Vector2 position = Vector2.zero, pivot = new Vector2(0,1), scale = Vector2.one;
            Color color = Color.white;

            foreach(XmlAttribute attribute in element.Attributes)
            {
                // atlas
                if (attribute.Name.Equals("atlas"))
                    obj.atlas = int.Parse(attribute.Value);

                // folder
                else if (attribute.Name.Equals("folder"))
                    obj.folder = int.Parse(attribute.Value);

                // file
                else if (attribute.Name.Equals("file"))
                    obj.file = int.Parse(attribute.Value);

                // name
                else if (attribute.Name.Equals("name"))
                    obj.name = attribute.Value;

                // x, y
                else if (attribute.Name.Equals("x"))
                    position.x = float.Parse(attribute.Value);
                else if (attribute.Name.Equals("y"))
                    position.y = float.Parse(attribute.Value);

                // pivot_x, pivot_y
                else if (attribute.Name.Equals("pivot_x"))
                    pivot.x = float.Parse(attribute.Value);
                else if (attribute.Name.Equals("pivot_y"))
                    pivot.y = float.Parse(attribute.Value);

                // angle
                else if (attribute.Name.Equals("angle"))
                    obj.angle = float.Parse(attribute.Value);

                // w, h
                else if (attribute.Name.Equals("w"))
                    obj.pixelWidth = int.Parse(attribute.Value);
                else if (attribute.Name.Equals("h"))
                    obj.pixelHeight = int.Parse(attribute.Value);

                // scale_x, scale_y
                else if (attribute.Name.Equals("scale_x"))
                    scale.x = float.Parse(attribute.Value);
                else if (attribute.Name.Equals("scale_y"))
                    scale.y = float.Parse(attribute.Value);

                // color
                else if (attribute.Name.Equals("r"))
                    color.r = float.Parse(attribute.Value);
                else if (attribute.Name.Equals("g"))
                    color.g = float.Parse(attribute.Value);
                else if (attribute.Name.Equals("b"))
                    color.b = float.Parse(attribute.Value);
                else if (attribute.Name.Equals("a"))
                    color.a = float.Parse(attribute.Value);

                // blend_mode
                else if (attribute.Name.Equals("blend_mode"))
                {
                    obj.blendModeRaw = attribute.Value;
                    obj.blendMode = SpriterDataHelpers.ParseSpriterEnum<BlendMode>(obj.blendModeRaw);
                }

                // value
                else if (attribute.Name.Equals("value"))
                    obj.value = ReadVariable(variableType, attribute.Value);

                // min, max
                else if (attribute.Name.Equals("min"))
                    obj.min = ReadVariable(variableType, attribute.Value);
                else if (attribute.Name.Equals("max"))
                    obj.max = ReadVariable(variableType, attribute.Value);

                // animation
                else if (attribute.Name.Equals("animation"))
                    obj.entityAnimation = int.Parse(attribute.Value);

                // t
                else if (attribute.Name.Equals("t"))
                    obj.entityT = float.Parse(attribute.Value);

                // volume
                else if (attribute.Name.Equals("volume"))
                    obj.volume = float.Parse(attribute.Value);

                // panning
                else if (attribute.Name.Equals("panning"))
                    obj.panning = float.Parse(attribute.Value);
            }

            foreach(XmlElement child in element)
            {
                // meta_data
                if (child.Name.Equals("meta_data"))
                    ReadMetaData(child, obj.metaData);
            }

            // Assign vector values
            obj.position = position;
            obj.pivot = pivot;
            obj.scale = scale;
            obj.color = color;

            // Object references
            obj.targetAtlas = m_Data.FindAtlas(obj.atlas);
            obj.targetFile = m_Data.FindFile(obj.folder, obj.file);
        }
        void ReadTimeline(XmlElement element, SpriterAnimation animation)
        {
            SpriterTimeline timeline = new SpriterTimeline();
            animation.timelines.Add(timeline);

            foreach(XmlAttribute attribute in element.Attributes)
            {
                // id
                if (attribute.Name.Equals("id"))
                    timeline.ID = int.Parse(attribute.Value);

                // name
                else if (attribute.Name.Equals("name"))
                    timeline.name = attribute.Value;

                // object_type
                else if (attribute.Name.Equals("object_type"))
                {
                    timeline.objectTypeRaw = attribute.Value;
                    timeline.objectType = SpriterDataHelpers.ParseSpriterEnum<ObjectType>(timeline.objectTypeRaw);
                }

                // variable_type
                else if (attribute.Name.Equals("variable_type"))
                {
                    timeline.variableTypeRaw = attribute.Value;
                    timeline.variableType = SpriterDataHelpers.ParseSpriterEnum<VariableType>(timeline.variableTypeRaw);
                }

                // usage
                else if (attribute.Name.Equals("usage"))
                {
                    timeline.usageRaw = attribute.Value;
                    timeline.usage = SpriterDataHelpers.ParseSpriterEnum<UsageType>(timeline.usageRaw);
                }
            }

            foreach(XmlElement child in element)
            {
                // meta_data
                if (child.Name.Equals("meta_data"))
                    ReadMetaData(child, timeline.metaData);

                // key
                else if (child.Name.Equals("key"))
                {
                    SpriterTimelineKey key = new SpriterTimelineKey();
                    timeline.keys.Add(key);

                    Vector2 tangents = Vector2.zero;

                    foreach(XmlAttribute attribute in child.Attributes)
                    {
                        // id
                        if (attribute.Name.Equals("id"))
                            key.ID = int.Parse(attribute.Value);

                        // time
                        else if (attribute.Name.Equals("time"))
                            key.time = int.Parse(attribute.Value);

                        // curve_type
                        else if (attribute.Name.Equals("curve_type"))
                        {
                            key.curveTypeRaw = attribute.Value;
                            key.curveType = SpriterDataHelpers.ParseSpriterEnum<CurveType>(key.curveTypeRaw);
                        }

                        // c1, c2
                        else if (attribute.Name.Equals("c1"))
                            tangents.x = float.Parse(attribute.Value);
                        else if (attribute.Name.Equals("c2"))
                            tangents.y = float.Parse(attribute.Value);

                        // spin
                        else if (attribute.Name.Equals("spin"))
                            key.spin = int.Parse(attribute.Value);
                    }

                    // Assign vector values
                    key.curveTangents = tangents;

                    foreach(XmlElement child2 in child)
                    {
                        // meta_data
                        if (child2.Name.Equals("meta_data"))
                            ReadMetaData(child2, key.metaData);

                        // bone
                        else if (child2.Name.Equals("bone"))
                            ReadTimelineBone(child2, key);

                        // object
                        else if (child2.Name.Equals("object"))
                            ReadTimelineObject(child2, key, timeline.variableType);
                    }
                }
            }
        }
        void ReadTimelineBone(XmlElement element, SpriterTimelineKey key)
        {
            SpriterTimelineBone bone = new SpriterTimelineBone();
            key.objects.Add(bone);

            Vector2 position = Vector2.zero, scale = Vector2.one;
            Color color = Color.white;

            foreach(XmlAttribute attribute in element.Attributes)
            {
                // x, y
                if (attribute.Name.Equals("x"))
                    position.x = float.Parse(attribute.Value);
                else if (attribute.Name.Equals("y"))
                    position.y = float.Parse(attribute.Value);

                // angle
                else if (attribute.Name.Equals("angle"))
                    bone.angle = float.Parse(attribute.Value);

                // scale
                else if (attribute.Name.Equals("scale_x"))
                    scale.x = float.Parse(attribute.Value);
                else if (attribute.Name.Equals("scale_y"))
                    scale.y = float.Parse(attribute.Value);

                // color
                else if (attribute.Name.Equals("r"))
                    color.r = float.Parse(attribute.Value);
                else if (attribute.Name.Equals("g"))
                    color.g = float.Parse(attribute.Value);
                else if (attribute.Name.Equals("b"))
                    color.b = float.Parse(attribute.Value);
                else if (attribute.Name.Equals("a"))
                    color.a = float.Parse(attribute.Value);
            }

            foreach(XmlElement child in element)
            {
                // meta_data
                if (child.Name.Equals("meta_data"))
                    ReadMetaData(child, bone.metaData);
            }

            // Assign vector values
            bone.position = position;
            bone.scale = scale;
            bone.color = color;
        }