Implement RemoveObject and RemoveObject2 tags

src/read.rs

@@ -349,6 +349,20 @@ impl<R: Read> Reader<R> {
             Some(TagCode::PlaceObject2) => try!(tag_reader.read_place_object_2()),
             //Some(TagCode::PlaceObject3) => try!(tag_reader.read_place_object_3()),
 
+            Some(TagCode::RemoveObject) => {
+                Tag::RemoveObject {
+                    character_id: Some(try!(tag_reader.read_u16())),
+                    depth: try!(tag_reader.read_i16()),
+                }
+            },
+
+            Some(TagCode::RemoveObject2) => {
+                Tag::RemoveObject {
+                    depth: try!(tag_reader.read_i16()),
+                    character_id: None,
+                }
+            },
+
             _ => {
                 let size = length as usize;
                 let mut data = Vec::with_capacity(size);

src/types.rs

@@ -180,6 +180,7 @@ pub enum Tag {
     SetBackgroundColor(Color),
 
     PlaceObject(Box<PlaceObject>),
+    RemoveObject { depth: Depth, character_id: Option<CharacterId> },
 
     FileAttributes(FileAttributes),
 

src/write.rs

@@ -317,6 +317,16 @@ impl<W: Write> Writer<W> {
                 _ => return Err(Error::new(ErrorKind::InvalidData, "Invalid PlaceObject version.")),
             },
 
+            &Tag::RemoveObject { depth, character_id } => {
+                if let Some(id) = character_id {
+                    try!(self.write_tag_header(TagCode::RemoveObject, 4));
+                    try!(self.write_u16(id));
+                } else {
+                    try!(self.write_tag_header(TagCode::RemoveObject2, 2));                    
+                }
+                try!(self.write_i16(depth));
+            },
+
             &Tag::FileAttributes(ref attributes) => {
                 try!(self.write_tag_header(TagCode::FileAttributes, 4));
                 let mut flags = 0u32;