chore: fix loading and writing code for IW5

src/ObjLoading/Game/IW5/Weapon/RawLoaderWeaponIW5.cpp

@@ -0,0 +1,54 @@
+#include "RawLoaderWeaponIW5.h"
+
+#include "Game/IW5/IW5.h"
+#include "Game/IW5/ObjConstantsIW5.h"
+#include "InfoString/InfoString.h"
+#include "InfoStringLoaderWeaponIW5.h"
+
+#include <cstring>
+#include <format>
+#include <iostream>
+
+using namespace IW5;
+
+namespace
+{
+    class RawLoaderWeapon final : public AssetCreator<AssetWeapon>
+    {
+    public:
+        RawLoaderWeapon(MemoryManager& memory, ISearchPath& searchPath, Zone& zone)
+            : m_search_path(searchPath),
+              m_info_string_loader(memory, searchPath, zone)
+        {
+        }
+
+        AssetCreationResult CreateAsset(const std::string& assetName, AssetCreationContext& context) override
+        {
+            const auto fileName = std::format("weapons/{}", assetName);
+            const auto file = m_search_path.Open(fileName);
+            if (!file.IsOpen())
+                return AssetCreationResult::NoAction();
+
+            InfoString infoString;
+            if (!infoString.FromStream(ObjConstants::INFO_STRING_PREFIX_WEAPON, *file.m_stream))
+            {
+                std::cerr << std::format("Could not parse as info string file: \"{}\"\n", fileName);
+                return AssetCreationResult::Failure();
+            }
+
+            return m_info_string_loader.CreateAsset(assetName, infoString, context);
+        }
+
+    private:
+        ISearchPath& m_search_path;
+        InfoStringLoaderWeapon m_info_string_loader;
+    };
+} // namespace
+
+namespace IW5
+{
+    std::unique_ptr<AssetCreator<AssetWeapon>> CreateRawWeaponLoader(MemoryManager& memory, ISearchPath& searchPath, Zone& zone)
+    {
+        return std::make_unique<RawLoaderWeapon>(memory, searchPath, zone);
+    }
+} // namespace IW5