Added DisplayObject.metaData support for AnimateLibrary (closes #37)

Co-authored-by: twilson90 <twilson90@users.noreply.github.com>

Author: joshtynjala

src/swf/exporters/AnimateLibraryExporter.hx

@@ -762,6 +762,11 @@ class AnimateLibraryExporter
 					frameObject.cacheAsBitmap = placeTag.bitmapCache != 0;
 				}
 
+				if (placeTag.metaData != null)
+				{
+					frameObject.metaData = placeTag.metaData;
+				}
+
 				lastModified.set(object.placedAtIndex, object.lastModifiedAtIndex);
 
 				if (frame.objects == null)

src/swf/exporters/animate/AnimateFrameObject.hx

@@ -23,6 +23,7 @@ class AnimateFrameObject
 	public var symbol:Int;
 	public var type:AnimateFrameObjectType;
 	public var visible:Null<Bool>;
+	public var metaData:Null<Dynamic>;
 
 	public function new() {}
 }

src/swf/exporters/animate/AnimateLibrary.hx

@@ -784,6 +784,7 @@ import openfl.filters.GlowFilter;
 					object.symbol = objectData.symbol;
 					object.type = objectData.type;
 					object.visible = objectData.visible;
+					object.metaData = objectData.metaData;
 					frame.objects.push(object);
 				}
 			}

src/swf/exporters/animate/AnimateTimeline.hx

@@ -516,6 +516,13 @@ class AnimateTimeline extends Timeline
 			displayObject.cacheAsBitmap = frameObject.cacheAsBitmap;
 		}
 
+		#if (openfl >= "9.5.0")
+		if (frameObject.metaData != null)
+		{
+			displayObject.metaData = frameObject.metaData;
+		}
+		#end
+
 		#if openfljs
 		Reflect.setField(__sprite, displayObject.name, displayObject);
 		#end

src/swf/tags/TagPlaceObject4.hx

@@ -1,5 +1,6 @@
 package swf.tags;
 
+import openfl.net.ObjectEncoding;
 import swf.SWFData;
 import swf.utils.StringUtils;
 
@@ -29,8 +30,10 @@ class TagPlaceObject4 extends TagPlaceObject3 implements IDisplayListTag
 		super.parse(data, length, version, async);
 		if (data.bytesAvailable > 0)
 		{
-			// TODO
-			// metaData = data.readObject();
+			var oldEncoding = data.objectEncoding;
+			data.objectEncoding = ObjectEncoding.AMF3;
+			metaData = data.readObject();
+			data.objectEncoding = oldEncoding;
 		}
 	}
 
@@ -40,8 +43,10 @@ class TagPlaceObject4 extends TagPlaceObject3 implements IDisplayListTag
 
 		if (metaData != null)
 		{
-			// TODO
-			// body.writeObject(metaData);
+			var oldEncoding = data.objectEncoding;
+			data.objectEncoding = ObjectEncoding.AMF3;
+			body.writeObject(metaData);
+			data.objectEncoding = oldEncoding;
 		}
 
 		data.writeTagHeader(type, body.length);