chore: refactor IW4 asset loaders

src/ObjLoading/Gdt/GdtLookup.cpp

@@ -0,0 +1,44 @@
+#include "GdtLookup.h"
+
+void GdtLookup::Initialize(const std::vector<const Gdt*>& gdtFiles)
+{
+    m_entries_by_gdf_and_by_name.clear();
+
+    for (const auto* gdt : gdtFiles)
+    {
+        for (const auto& entry : gdt->m_entries)
+        {
+            auto gdfMapEntry = m_entries_by_gdf_and_by_name.find(entry->m_gdf_name);
+            if (gdfMapEntry == m_entries_by_gdf_and_by_name.end())
+            {
+                std::unordered_map<std::string, GdtEntry*> entryMap;
+                entryMap.emplace(entry->m_name, entry.get());
+                m_entries_by_gdf_and_by_name.emplace(entry->m_gdf_name, std::move(entryMap));
+            }
+            else
+            {
+                auto entryMapEntry = gdfMapEntry->second.find(entry->m_name);
+
+                if (entryMapEntry == gdfMapEntry->second.end())
+                    gdfMapEntry->second.emplace(entry->m_name, entry.get());
+                else
+                    entryMapEntry->second = entry.get();
+            }
+        }
+    }
+}
+
+GdtEntry* GdtLookup::GetGdtEntryByGdfAndName(const std::string& gdfName, const std::string& entryName)
+{
+    const auto foundGdtMap = m_entries_by_gdf_and_by_name.find(gdfName);
+
+    if (foundGdtMap == m_entries_by_gdf_and_by_name.end())
+        return nullptr;
+
+    const auto foundGdtEntry = foundGdtMap->second.find(entryName);
+
+    if (foundGdtEntry == foundGdtMap->second.end())
+        return nullptr;
+
+    return foundGdtEntry->second;
+}

src/ObjLoading/Gdt/GdtLookup.h

@@ -0,0 +1,18 @@
+#pragma once
+
+#include "IGdtQueryable.h"
+#include "Obj/Gdt/Gdt.h"
+
+#include <string>
+#include <unordered_map>
+#include <vector>
+
+class GdtLookup : public IGdtQueryable
+{
+public:
+    void Initialize(const std::vector<const Gdt*>& gdtFiles);
+    GdtEntry* GetGdtEntryByGdfAndName(const std::string& gdfName, const std::string& entryName) override;
+
+private:
+    std::unordered_map<std::string, std::unordered_map<std::string, GdtEntry*>> m_entries_by_gdf_and_by_name;
+};

src/ObjLoading/Gdt/IGdtQueryable.h

@@ -0,0 +1,18 @@
+#pragma once
+
+#include "Obj/Gdt/GdtEntry.h"
+
+#include <string>
+
+class IGdtQueryable
+{
+public:
+    IGdtQueryable() = default;
+    virtual ~IGdtQueryable() = default;
+    IGdtQueryable(const IGdtQueryable& other) = default;
+    IGdtQueryable(IGdtQueryable&& other) noexcept = default;
+    IGdtQueryable& operator=(const IGdtQueryable& other) = default;
+    IGdtQueryable& operator=(IGdtQueryable&& other) noexcept = default;
+
+    virtual GdtEntry* GetGdtEntryByGdfAndName(const std::string& gdfName, const std::string& entryName) = 0;
+};