"new id" functions

src/game.rs

@@ -429,6 +429,18 @@ impl Game {
         new_unique_id(self.item_ids())
     }
 
+    pub fn new_dialogue_id(&self) -> String {
+        new_unique_id(self.dialogue_ids())
+    }
+
+    pub fn new_ending_id(&self) -> String {
+        new_unique_id(self.ending_ids())
+    }
+
+    pub fn new_variable_id(&self) -> String {
+        new_unique_id(self.variable_ids())
+    }
+    
     /// adds a palette safely and returns the new palette ID
     #[inline]
     pub fn add_palette(&mut self, mut palette: Palette) -> String {