Add fallback terrain icons in campaign selector (#80)

game/campaignloader/campaign.py

@@ -32,6 +32,7 @@ DEFAULT_BUDGET = 2000
 class Campaign:
     name: str
     menu_thumbnail_dcs_relative_path: Path
+    fallback_icon_path: Path
     authors: str
     description: str
 
@@ -90,6 +91,7 @@ class Campaign:
         return cls(
             data["name"],
             TheaterLoader(data["theater"].lower()).menu_thumbnail_dcs_relative_path,
+            TheaterLoader(data["theater"].lower()).icon_path,
             data.get("authors", "???"),
             data.get("description", ""),
             (version.major, version.minor),

game/theater/theaterloader.py

@@ -90,6 +90,10 @@ class TheaterLoader:
     def landmap_path(self) -> Path:
         return self.descriptor_path.with_name("landmap.p")
 
+    @property
+    def icon_path(self) -> Path:
+        return self.descriptor_path.with_name("icon.gif")
+
     @property
     def menu_thumbnail_dcs_relative_path(self) -> Path:
         with self.descriptor_path.open() as descriptor_file: