export font and text direction to string

src/game.rs

@@ -209,10 +209,12 @@ impl ToString for Game {
         }
 
         format!(
-            "{}\n{}\n{}\n\n{}\n\n",
+            "{}\n{}\n{}{}{}\n\n{}\n\n",
             &self.name,
             &self.version_line(),
             &self.room_format_line(),
+            &self.font_line(),
+            &self.text_direction_line(),
             segments.join("\n\n"),
         )
     }
@@ -257,6 +259,22 @@ impl Game {
     fn room_format_line(&self) -> String {
         optional_data_line("! ROOM_FORMAT", Some(self.room_format))
     }
+
+    fn font_line(&self) -> String {
+        if self.font == Font::AsciiSmall {
+            "".to_string()
+        } else {
+            if self.font == Font::Custom {
+                format!("\n\nDEFAULT FONT {}", self.custom_font.as_ref().unwrap())
+            } else {
+                format!("\n\nDEFAULT FONT {}", self.font.to_string().unwrap())
+            }
+        }
+    }
+
+    fn text_direction_line(&self) -> &str {
+        if self.text_direction == TextDirection::RightToLeft {"\n\nTEXT_DIRECTION RTL"} else {""}
+    }
 }
 
 #[test]