Add CWorldLayerState

include/MetroidPrime/Player/CWorldLayerState.hpp

@@ -0,0 +1,68 @@
+#ifndef _CWORLDLAYERSTATE
+#define _CWORLDLAYERSTATE
+
+#include "MetroidPrime/TGameTypes.hpp"
+
+#include "rstl/vector.hpp"
+
+class CBitStreamReader;
+class CWorldSaveGameInfo;
+class CMemoryStreamOut;
+
+class CWorldLayers {
+public:
+  class Area {
+  public:
+    int m_startNameIdx;
+    int m_layerCount;
+    // u64 m_layerBits;
+    uint m_layerBitsHi;
+    uint m_layerBitsLo;
+  };
+};
+
+class WordBitmap {
+public:
+  WordBitmap() : bitCount(0) {}
+
+  int GetBitCount() const { return bitCount; }
+
+  bool GetBit(int idx) const {
+    int wordIdx = idx / 32;
+    if (wordIdx >= words.size()) {
+      return false;
+    }
+    int wordCur = idx % 32;
+    return ((words[wordIdx] >> wordCur) & 0x1) != 0u;
+  }
+
+  void operator=(const WordBitmap&);
+
+  void Clear() {
+    words.clear();
+    bitCount = 0;
+  }
+
+private:
+  int bitCount;
+  rstl::vector< uint > words;
+};
+
+class CWorldLayerState {
+public:
+  CWorldLayerState(CBitStreamReader&, const CWorldSaveGameInfo&);
+
+  void PutTo(CMemoryStreamOut&);
+
+  void SetLayerActive(const TAreaId& areaIdx, const int& layerIdx, bool active);
+  bool IsLayerActive(const TAreaId& areaIdx, const int& layerIdx);
+
+  void InitializeWorldLayers(const rstl::vector< CWorldLayers::Area >&);
+  int GetAreaLayerCount(const TAreaId&);
+
+private:
+  rstl::vector< CWorldLayers::Area > x0_areaLayers;
+  WordBitmap x10_saveLayers;
+};
+
+#endif // _CWORLDLAYERSTATE