Interaction folder is finalized with adjustable box and tested for rotating drum

src/Interaction/contactSearch/methods/cellBased/NBS/cellsWallLevel0.hpp

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+/*------------------------------- phasicFlow ---------------------------------
+      O        C enter of
+     O O       E ngineering and
+    O   O      M ultiscale modeling of
+   OOOOOOO     F luid flow       
+------------------------------------------------------------------------------
+  Copyright (C): www.cemf.ir
+  email: hamid.r.norouzi AT gmail.com
+------------------------------------------------------------------------------  
+Licence:
+  This file is part of phasicFlow code. It is a free software for simulating 
+  granular and multiphase flows. You can redistribute it and/or modify it under
+  the terms of GNU General Public License v3 or any other later versions. 
+ 
+  phasicFlow is distributed to help others in their research in the field of 
+  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+-----------------------------------------------------------------------------*/
+
+#ifndef __cellsWallLevel0_hpp__
+#define __cellsWallLevel0_hpp__
+
+#include "contactSearchGlobals.hpp"
+#include "contactSearchFunctions.hpp"
+#include "mapperNBS.hpp"
+#include "iBox.hpp"
+
+
+
+namespace pFlow
+{
+
+class cellsWallLevel0
+{
+public:
+
+	using execution_space = csExecutionSpace;
+
+	using memory_space 	= typename execution_space::memory_space;
+
+	using iBoxType 		= iBox<int32>;	
+
+	class TagFindCellRange2{};
+
+private:
+
+	// - box extent
+	real 			cellExtent_ = 0.5;
+
+	// - number of triangle elements 
+	uint32			numElements_ = 0;
+
+	// - number of points
+	uint32 			numPoints_ = 0;
+
+	// - ref to vectices (borrowed)
+	ViewType1D<uint32x3, memory_space> 	vertices_;
+
+	// - ref to points in the trisurface (borrowed)
+	ViewType1D<realx3, memory_space> 	points_;
+
+	// cell range of element/triangle bounding box
+	ViewType1D<iBoxType, memory_space> 	elementBox_;
+	
+
+	using tpPWContactSearch = Kokkos::TeamPolicy<
+			execution_space,
+			Kokkos::Schedule<Kokkos::Dynamic>,
+			Kokkos::IndexType<uint32>>;
+	
+	FUNCTION_H
+	void allocateArrays()
+	{
+		reallocNoInit( elementBox_, numElements_);
+	}
+
+public:
+
+	TypeInfoNV("cellsWallLevel0");
+
+	INLINE_FUNCTION_HD
+	cellsWallLevel0(){}
+
+	FUNCTION_H
+	cellsWallLevel0(
+		real 					cellExtent,
+		uint32 					numPoints,
+		uint32 					numElements,
+		const ViewType1D<realx3,memory_space>& 		points, 
+		const ViewType1D<uint32x3,memory_space>& 	vertices);
+	
+
+	
+	// - host call
+	//   reset triangle elements if they have changed
+	bool resetElements( 
+		uint32 		numElements,
+		uint32      numPoints,
+		ViewType1D<realx3, memory_space>& points, 
+		ViewType1D<uint32x3, memory_space>& vertices);
+	
+
+	INLINE_FUNCTION_HD
+	iBoxType elementBox(uint32 i)const
+	{
+		return elementBox_[i];
+	}
+
+	INLINE_FUNCTION_HD
+	uint32 numElements()const
+	{
+		return numElements_;
+	}
+
+	bool broadSearch(
+		csPairContainerType& pairs,
+		const cells& searchBox, 
+		const mapperNBS::CellIterator& particleMap);
+	
+
+	bool build(const cells& searchBox);
+	
+	bool particleWallFindPairs(
+		csPairContainerType& pairs, 
+		const mapperNBS::CellIterator& particleMap);
+
+	int32 findPairsElementRangeCount(
+		csPairContainerType& pairs, 
+		const mapperNBS::CellIterator& particleMap); 
+	
+
+
+}; // cellsWallLevel0
+
+} // pFlow
+
+
+#endif // __cellsWallLevel0_hpp__