ksys/res: Add GameResourceSystem header

src/KingSystem/Resource/resGameResourceSystem.h

@@ -0,0 +1,41 @@
+#pragma once
+
+#include <heap/seadDisposer.h>
+
+namespace ksys::res {
+
+class CompactionMgr;
+
+// Also known as game::ResourceSystem (?)
+class GameResourceSystem {
+    SEAD_SINGLETON_DISPOSER(GameResourceSystem)
+    GameResourceSystem() = default;
+    virtual ~GameResourceSystem();
+
+public:
+    struct InitArg {
+        sead::Heap* heap;
+    };
+
+    bool init(const InitArg& arg);
+
+    void calc();
+    void pauseCompaction();
+    void resumeCompaction();
+
+private:
+    CompactionMgr* mCompactionMgr = nullptr;
+    bool mPauseCompaction = false;
+};
+
+class ScopedCompactionPauser {
+public:
+    ScopedCompactionPauser() { GameResourceSystem::instance()->pauseCompaction(); }
+    ~ScopedCompactionPauser() { GameResourceSystem::instance()->resumeCompaction(); }
+    ScopedCompactionPauser(const ScopedCompactionPauser&) = delete;
+    ScopedCompactionPauser(ScopedCompactionPauser&&) = delete;
+    auto operator=(const ScopedCompactionPauser&) = delete;
+    auto operator=(ScopedCompactionPauser&&) = delete;
+};
+
+}  // namespace ksys::res