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			103 lines
		
	
	
	
		
			3.2 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			103 lines
		
	
	
	
		
			3.2 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
#include "debug.hpp"
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#include "exceptions.hpp"
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#include "recastmesh.hpp"
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#include <DetourNavMesh.h>
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#include <boost/filesystem.hpp>
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#include <boost/filesystem/fstream.hpp>
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namespace DetourNavigator
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{
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    void writeToFile(const RecastMesh& recastMesh, const std::string& pathPrefix, const std::string& revision)
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    {
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        const auto path = pathPrefix + "recastmesh" + revision + ".obj";
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        boost::filesystem::ofstream file(boost::filesystem::path(path), std::ios::out);
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        if (!file.is_open())
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            throw NavigatorException("Open file failed: " + path);
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        file.exceptions(std::ios::failbit | std::ios::badbit);
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        file.precision(std::numeric_limits<float>::max_exponent10);
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        std::size_t count = 0;
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        for (auto v : recastMesh.getVertices())
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        {
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            if (count % 3 == 0)
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            {
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                if (count != 0)
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                    file << '\n';
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                file << 'v';
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            }
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            file << ' ' << v;
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            ++count;
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        }
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        file << '\n';
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        count = 0;
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        for (auto v : recastMesh.getIndices())
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        {
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            if (count % 3 == 0)
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            {
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                if (count != 0)
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                    file << '\n';
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                file << 'f';
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            }
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            file << ' ' << (v + 1);
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            ++count;
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        }
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        file << '\n';
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    }
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    void writeToFile(const dtNavMesh& navMesh, const std::string& pathPrefix, const std::string& revision)
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    {
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        const int navMeshSetMagic = 'M' << 24 | 'S' << 16 | 'E' << 8 | 'T'; //'MSET';
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        const int navMeshSetVersion = 1;
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        struct NavMeshSetHeader
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        {
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            int magic;
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            int version;
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            int numTiles;
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            dtNavMeshParams params;
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        };
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        struct NavMeshTileHeader
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        {
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            dtTileRef tileRef;
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            int dataSize;
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        };
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        const auto path = pathPrefix + "all_tiles_navmesh" + revision + ".bin";
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        boost::filesystem::ofstream file(boost::filesystem::path(path), std::ios::out | std::ios::binary);
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        if (!file.is_open())
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            throw NavigatorException("Open file failed: " + path);
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        file.exceptions(std::ios::failbit | std::ios::badbit);
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        NavMeshSetHeader header;
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        header.magic = navMeshSetMagic;
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        header.version = navMeshSetVersion;
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        header.numTiles = 0;
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        for (int i = 0; i < navMesh.getMaxTiles(); ++i)
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        {
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            const auto tile = navMesh.getTile(i);
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            if (!tile || !tile->header || !tile->dataSize)
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                continue;
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            header.numTiles++;
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        }
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        header.params = *navMesh.getParams();
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        using const_char_ptr = const char*;
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        file.write(const_char_ptr(&header), sizeof(header));
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        for (int i = 0; i < navMesh.getMaxTiles(); ++i)
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        {
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            const auto tile = navMesh.getTile(i);
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            if (!tile || !tile->header || !tile->dataSize)
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                continue;
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            NavMeshTileHeader tileHeader;
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            tileHeader.tileRef = navMesh.getTileRef(tile);
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            tileHeader.dataSize = tile->dataSize;
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            file.write(const_char_ptr(&tileHeader), sizeof(tileHeader));
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            file.write(const_char_ptr(tile->data), tile->dataSize);
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        }
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    }
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}
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