Core: Add entity_cast

src/map/entities/baseentity.h

@@ -227,6 +227,7 @@ struct EntityID_t
 };
 
 class CAIContainer;
+class CBaseEntity;
 class CBattlefield;
 class CInstance;
 class CZone;
@@ -250,6 +251,23 @@ struct location_t
     }
 };
 
+template <typename TBase, typename TRequested>
+inline auto entity_cast(TBase* basePtr) -> TRequested*
+{
+    if (const auto* entityPtr = dynamic_cast<TRequested*>(basePtr))
+    {
+        return entityPtr;
+    }
+
+    const auto baseName      = typeid(TBase).name();
+    const auto requestedName = typeid(TRequested).name();
+    const auto errString     = fmt::format("entity_cast: Failed to cast entity from base type '{}' to requested type '{}'.", baseName, requestedName);
+
+    ShowCritical(errString);
+
+    return nullptr;
+}
+
 /************************************************************************
  *                                                                       *
  *  Basic class for all entities in the game                             *