Added a menudisplay class for menus with a value such as the menu of the merchants

squirrelbattle/display/menudisplay.py

@@ -94,3 +94,10 @@ class MainMenuDisplay(Display):
         self.menudisplay.refresh(
             menuy, menux, min(self.menudisplay.preferred_height,
                               self.height - menuy), menuwidth)
+
+class VariableMenuDisplay(MenuDisplay):
+    @property
+    def values(self) -> List[str]:
+        return [a[1][1] + (" : "
+                + (a[1][0])
+            if a[1][0] else "" for a in self.menu.values]