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Cry3DEngine/detail_grass.h

@@ -0,0 +1,62 @@
+////////////////////////////////////////////////////////////////////////////
+//
+//  Crytek Engine Source File.
+//  Copyright (C), Crytek Studios, 2002.
+// -------------------------------------------------------------------------
+//  File name:   detail_grass.h
+//  Version:     v1.00
+//  Created:     28/5/2001 by Vladimir Kajalin
+//  Compilers:   Visual Studio.NET
+//  Description: 
+// -------------------------------------------------------------------------
+//  History:
+//
+////////////////////////////////////////////////////////////////////////////
+
+#ifndef _DETAILGRASS_H_
+#define _DETAILGRASS_H_
+
+class CVertexBuffer;
+struct GrassType;
+class CTerrain;
+struct CLeafBuffer;
+
+const int   DETAIL_GRASS_PIP_BUFFER_SIZE = 50000;
+const float CAMERA_GRASS_SHIFT = 9;
+
+class CDetailGrass : public Cry3DEngineBase
+{
+  void CreateSectorGrass(const int range, const int step, struct_VERTEX_FORMAT_P3F_COL4UB_TEX2F * pGrassVertices);
+  void CreateSectorGrassInUnit(const int x, const int y, const int nStep, 
+		struct_VERTEX_FORMAT_P3F_COL4UB_TEX2F * pGrassVertices);
+  void AddIndexedArray(GrassType * o, float X, float Y, float Z, float fbr, float fSizeRatio, 
+		float fXSign, float fYSign, int nSwapXY, struct_VERTEX_FORMAT_P3F_COL4UB_TEX2F * pGrassVertices);
+
+  list2<unsigned short> m_GrassIndices;
+//  struct_VERTEX_FORMAT_P3F_COL4UB_TEX2F * m_pGrassVertices;
+  int m_GrassVerticesCount;
+  int m_GrassFocusX, m_GrassFocusY; // grass focus
+  int m_GrassTID;
+  list2<GrassType*> m_GrassModelsArray;
+  int m_nGrassDensity;
+  CTerrain * m_pTerrain;
+  list2<GrassType*> m_arrlstSurfaceObjects[MAX_SURFACE_TYPES_COUNT];
+
+  CLeafBuffer * m_pLeafBuffer;
+  IShader * m_pShader;
+  float m_arrfShaderInfo[16];
+
+public:
+  CDetailGrass(XDOM::IXMLDOMNodeListPtr pDetTexTagList);
+  ~CDetailGrass();
+  void RenderDetailGrass(CTerrain * pTerrain);
+  void UpdateGrass() { m_GrassFocusX=m_GrassFocusY=-CTerrain::GetTerrainSize(); }
+	void PreloadResources();
+
+	static bool PrepareBufferCallback(CLeafBuffer * pLeafBuffer, bool bNeedTangents);
+	// todo: update
+	//void GetMemoryUsage(ICrySizer*pSizer);
+	int GetMemoryUsage();
+};
+
+#endif // _DETAILGRASS_H_