ECS System WIP

registry/NameRegistry.cpp

@@ -0,0 +1,52 @@
+#include "NameRegistry.h"
+#include "NameHash.h"
+
+#include <cassert>
+
+uint64_t NameRegistry::GetOrCreate(std::string_view name)
+{
+    if (name.empty())
+        return 0;
+
+    const uint64_t hash = HashRuntime(name);
+
+    std::lock_guard<std::mutex> lock(GetMutex());
+    auto& map = GetMap();
+
+    auto [it, inserted] = map.emplace(hash, std::string(name));
+    if (!inserted)
+    {
+        assert(it->second == name && "Name hash collision detected");
+    }
+
+    return hash;
+}
+
+const std::string& NameRegistry::GetString(uint64_t id)
+{
+    static const std::string Empty;
+
+    if (id == 0)
+        return Empty;
+
+    std::lock_guard<std::mutex> lock(GetMutex());
+    auto& map = GetMap();
+
+    auto it = map.find(id);
+    if (it != map.end())
+        return it->second;
+
+    return Empty;
+}
+
+std::unordered_map<uint64_t, std::string>& NameRegistry::GetMap()
+{
+    static std::unordered_map<uint64_t, std::string> map;
+    return map;
+}
+
+std::mutex& NameRegistry::GetMutex()
+{
+    static std::mutex mutex;
+    return mutex;
+}