1 files changed, 32 insertions, 2 deletions

diff --git a/extern/bullet2/src/BulletCollision/CollisionShapes/btHeightfieldTerrainShape.h b/extern/bullet2/src/BulletCollision/CollisionShapes/btHeightfieldTerrainShape.h
index 85fd49638ce..49f3e106733 100644
--- a/extern/bullet2/src/BulletCollision/CollisionShapes/btHeightfieldTerrainShape.h
+++ b/extern/bullet2/src/BulletCollision/CollisionShapes/btHeightfieldTerrainShape.h
@@ -25,16 +25,46 @@ protected:
 	btVector3	m_localAabbMin;
 	btVector3	m_localAabbMax;
 	
-	//todo: terrain data
+	///terrain data
+	int	m_width;
+	int m_length;
+	btScalar	m_maxHeight;
+	union
+	{
+		unsigned char*	m_heightfieldDataUnsignedChar;
+		btScalar*			m_heightfieldDataFloat;
+		void*			m_heightfieldDataUnknown;
+	};
+	
+	bool	m_useFloatData;
+	bool	m_flipQuadEdges;
+  bool  m_useDiamondSubdivision;
 
+	int	m_upAxis;
+	
 	btVector3	m_localScaling;
 
+	virtual btScalar	getHeightFieldValue(int x,int y) const;
+	void		quantizeWithClamp(int* out, const btVector3& point) const;
+	void		getVertex(int x,int y,btVector3& vertex) const;
+
+	inline bool testQuantizedAabbAgainstQuantizedAabb(int* aabbMin1, int* aabbMax1,const  int* aabbMin2,const  int* aabbMax2) const
+	{
+		bool overlap = true;
+		overlap = (aabbMin1[0] > aabbMax2[0] || aabbMax1[0] < aabbMin2[0]) ? false : overlap;
+		overlap = (aabbMin1[2] > aabbMax2[2] || aabbMax1[2] < aabbMin2[2]) ? false : overlap;
+		overlap = (aabbMin1[1] > aabbMax2[1] || aabbMax1[1] < aabbMin2[1]) ? false : overlap;
+		return overlap;
+	}
+
 public:
-	btHeightfieldTerrainShape();
+	btHeightfieldTerrainShape(int width,int height,void* heightfieldData, btScalar maxHeight,int upAxis,bool useFloatData,bool flipQuadEdges);
 
 	virtual ~btHeightfieldTerrainShape();
 
 
+	void setUseDiamondSubdivision(bool useDiamondSubdivision=true) { m_useDiamondSubdivision = useDiamondSubdivision;}
+
 	virtual int	getShapeType() const
 	{
 		return TERRAIN_SHAPE_PROXYTYPE;