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]

src/text.rs

@@ -18,6 +18,16 @@ impl Font {
             _ => Font::Custom,
         }
     }
+
+    pub(crate) fn to_string(&self) -> Result<String, &'static str> {
+        match &self {
+            Font::UnicodeEuropeanSmall => Ok("unicode_european_small".to_string()),
+            Font::UnicodeEuropeanLarge => Ok("unicode_european_large".to_string()),
+            Font::UnicodeAsian         => Ok("unicode_asian".to_string()),
+            Font::Arabic               => Ok("arabic".to_string()),
+            _                          => Err("No string available for this Font"),
+        }
+    }
 }
 
 #[derive(Debug, Eq, PartialEq)]