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GiantsTools
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Serialization of navmesh and build settings.

This commit is contained in:
Nick Blakely 2021-01-04 19:19:21 -08:00
parent 7874502ca2
commit 23d3136e3f
9 changed files with 25783 additions and 63 deletions
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21
External/json/LICENSE.MIT vendored Normal file
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@ -0,0 +1,21 @@
MIT License
Copyright (c) 2013-2021 Niels Lohmann
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

25597
External/json/json.hpp vendored Normal file
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File diff suppressed because it is too large Load Diff

4
GiantsTools.sln
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@ -308,6 +308,7 @@ Global
{2AFB71CA-8313-472E-B242-0517343764B4}.ReleaseBeta|x86.ActiveCfg = Release|Any CPU
{2AFB71CA-8313-472E-B242-0517343764B4}.ReleaseBeta|x86.Build.0 = Release|Any CPU
{8AEE9CFF-0E24-498F-B60A-627A7F4A727D}.Debug|Any CPU.ActiveCfg = Debug|Win32
{8AEE9CFF-0E24-498F-B60A-627A7F4A727D}.Debug|Any CPU.Build.0 = Debug|Win32
{8AEE9CFF-0E24-498F-B60A-627A7F4A727D}.Debug|x64.ActiveCfg = Debug|x64
{8AEE9CFF-0E24-498F-B60A-627A7F4A727D}.Debug|x64.Build.0 = Debug|x64
{8AEE9CFF-0E24-498F-B60A-627A7F4A727D}.Debug|x86.ActiveCfg = Debug|Win32
@ -319,6 +320,7 @@ Global
{8AEE9CFF-0E24-498F-B60A-627A7F4A727D}.DebugBeta|x86.ActiveCfg = Debug|Win32
{8AEE9CFF-0E24-498F-B60A-627A7F4A727D}.DebugBeta|x86.Build.0 = Debug|Win32
{8AEE9CFF-0E24-498F-B60A-627A7F4A727D}.Release|Any CPU.ActiveCfg = Release|Win32
{8AEE9CFF-0E24-498F-B60A-627A7F4A727D}.Release|Any CPU.Build.0 = Release|Win32
{8AEE9CFF-0E24-498F-B60A-627A7F4A727D}.Release|x64.ActiveCfg = Release|x64
{8AEE9CFF-0E24-498F-B60A-627A7F4A727D}.Release|x64.Build.0 = Release|x64
{8AEE9CFF-0E24-498F-B60A-627A7F4A727D}.Release|x86.ActiveCfg = Release|Win32
@ -330,6 +332,7 @@ Global
{8AEE9CFF-0E24-498F-B60A-627A7F4A727D}.ReleaseBeta|x86.ActiveCfg = Release|Win32
{8AEE9CFF-0E24-498F-B60A-627A7F4A727D}.ReleaseBeta|x86.Build.0 = Release|Win32
{CA9C0938-3ADA-4C73-A89A-E9447ABCE101}.Debug|Any CPU.ActiveCfg = Debug|Win32
{CA9C0938-3ADA-4C73-A89A-E9447ABCE101}.Debug|Any CPU.Build.0 = Debug|Win32
{CA9C0938-3ADA-4C73-A89A-E9447ABCE101}.Debug|x64.ActiveCfg = Debug|x64
{CA9C0938-3ADA-4C73-A89A-E9447ABCE101}.Debug|x64.Build.0 = Debug|x64
{CA9C0938-3ADA-4C73-A89A-E9447ABCE101}.Debug|x86.ActiveCfg = Debug|Win32
@ -341,6 +344,7 @@ Global
{CA9C0938-3ADA-4C73-A89A-E9447ABCE101}.DebugBeta|x86.ActiveCfg = Debug|Win32
{CA9C0938-3ADA-4C73-A89A-E9447ABCE101}.DebugBeta|x86.Build.0 = Debug|Win32
{CA9C0938-3ADA-4C73-A89A-E9447ABCE101}.Release|Any CPU.ActiveCfg = Release|Win32
{CA9C0938-3ADA-4C73-A89A-E9447ABCE101}.Release|Any CPU.Build.0 = Release|Win32
{CA9C0938-3ADA-4C73-A89A-E9447ABCE101}.Release|x64.ActiveCfg = Release|x64
{CA9C0938-3ADA-4C73-A89A-E9447ABCE101}.Release|x64.Build.0 = Release|x64
{CA9C0938-3ADA-4C73-A89A-E9447ABCE101}.Release|x86.ActiveCfg = Release|Win32

31
NavMeshGenerator/Main.cpp
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@ -3,10 +3,13 @@
#include "NavMeshGenerator.h"
#include "RecastContext.h"
using namespace std::filesystem;
int main(int argc, char** argv)
{
std::filesystem::path inputPath;
std::filesystem::path outputPath;
path inputPath;
path outputPath;
path outputPath2;
bool enableLogging = false;
for (int i = 1; i < argc; ++i)
@ -19,21 +22,27 @@ int main(int argc, char** argv)
{
outputPath = argv[++i];
}
else if (!_stricmp(argv[i], "--output2"))
{
outputPath2 = argv[++i];
}
else if (!_stricmp(argv[i], "--enableLogging"))
{
enableLogging = true;
}
}
InputGeom* geom = new InputGeom();
geom->load(nullptr, inputPath.string());
const auto context = std::make_shared<RecastContext>(enableLogging);
auto geom = std::make_shared<InputGeom>();
geom->load(context.get(), inputPath.string());
if (outputPath.empty())
{
printf("Warning: no output path set, no file will be generated.\n");
}
const auto context = std::make_shared<RecastContext>(enableLogging);
NavMeshGenerator generator(geom, context);
bool success = generator.BuildNavMesh();
@ -45,5 +54,17 @@ int main(int argc, char** argv)
if (!outputPath.empty())
{
generator.Serialize(outputPath);
if (!outputPath2.empty())
{
try
{
copy_file(outputPath, outputPath2);
}
catch (const filesystem_error& ex)
{
printf("Unable to copy output file to secondary path: %s.\n", ex.what());
}
}
}
}

104
NavMeshGenerator/NavMeshGenerator.cpp
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@ -5,7 +5,34 @@
#include "Recast.h"
#include "RecastContext.h"
NavMeshGenerator::NavMeshGenerator(InputGeom* geom, std::shared_ptr<RecastContext> context)
using namespace nlohmann;
using namespace std::filesystem;
inline unsigned int nextPow2(unsigned int v)
{
v--;
v |= v >> 1;
v |= v >> 2;
v |= v >> 4;
v |= v >> 8;
v |= v >> 16;
v++;
return v;
}
inline unsigned int ilog2(unsigned int v)
{
unsigned int r;
unsigned int shift;
r = (v > 0xffff) << 4; v >>= r;
shift = (v > 0xff) << 3; v >>= shift; r |= shift;
shift = (v > 0xf) << 2; v >>= shift; r |= shift;
shift = (v > 0x3) << 1; v >>= shift; r |= shift;
r |= (v >> 1);
return r;
}
NavMeshGenerator::NavMeshGenerator(std::shared_ptr<InputGeom> geom, std::shared_ptr<RecastContext> context)
: m_geom(geom),
m_navMeshQuery(dtAllocNavMeshQuery()),
m_navMesh(dtAllocNavMesh()),
@ -36,6 +63,8 @@ void NavMeshGenerator::Cleanup()
bool NavMeshGenerator::BuildNavMesh()
{
CalculateTileSize();
dtNavMeshParams params{};
rcVcopy(params.orig, m_geom->getNavMeshBoundsMin());
params.tileWidth = m_tileSize * m_cellSize;
@ -60,6 +89,27 @@ bool NavMeshGenerator::BuildNavMesh()
return true;
}
void NavMeshGenerator::CalculateTileSize()
{
const float* bmin = m_geom->getNavMeshBoundsMin();
const float* bmax = m_geom->getNavMeshBoundsMax();
int gw = 0, gh = 0;
rcCalcGridSize(bmin, bmax, m_cellSize, &gw, &gh);
const int ts = (int)m_tileSize;
const int tw = (gw + ts - 1) / ts;
const int th = (gh + ts - 1) / ts;
const float tcs = m_tileSize * m_cellSize;
// Max tiles and max polys affect how the tile IDs are caculated.
// There are 22 bits available for identifying a tile and a polygon.
int tileBits = rcMin((int)ilog2(nextPow2(tw * th)), 14);
if (tileBits > 14) tileBits = 14;
int polyBits = 22 - tileBits;
m_maxTiles = 1 << tileBits;
m_maxPolysPerTile = 1 << polyBits;
}
void NavMeshGenerator::BuildAllTiles()
{
const float* bmin = m_geom->getNavMeshBoundsMin();
@ -485,13 +535,14 @@ unsigned char* NavMeshGenerator::BuildTileMesh(const int tx, const int ty, const
return navData;
}
void NavMeshGenerator::Serialize(const std::filesystem::path& path) const
bool NavMeshGenerator::Serialize(const std::filesystem::path& path, bool saveStatistics)
{
if (!m_navMesh) return;
if (!m_navMesh)
return false;
FILE* fp = fopen(path.string().c_str(), "wb");
if (!fp)
return;
return false;
// Store header.
NavMeshSetHeader header;
@ -524,4 +575,49 @@ void NavMeshGenerator::Serialize(const std::filesystem::path& path) const
}
fclose(fp);
if (saveStatistics)
{
std::filesystem::path statsPath = path;
statsPath = statsPath.replace_extension(".navstats");
WriteStatistics(statsPath);
}
return true;
}
bool NavMeshGenerator::WriteStatistics(const std::filesystem::path& path)
{
std::ofstream outputFile(path);
if (!outputFile.is_open())
return false;
njson json;
json["m_cellSize"] = m_cellSize;
json["m_cellHeight"] = m_cellHeight;
json["m_agentHeight"] = m_agentHeight;
json["m_agentRadius"] = m_agentRadius;
json["m_agentMaxClimb"] = m_agentMaxClimb;
json["m_agentMaxSlope"] = m_agentMaxSlope;
json["m_regionMinSize"] = m_regionMinSize;
json["m_regionMergeSize"] = m_regionMergeSize;
json["m_edgeMaxLen"] = m_edgeMaxLen;
json["m_edgeMaxError"] = m_edgeMaxError;
json["m_vertsPerPoly"] = m_vertsPerPoly;
json["m_detailSampleDist"] = m_detailSampleDist;
json["m_detailSampleMaxError"] = m_detailSampleMaxError;
json["m_partitionType"] = m_partitionType;
json["m_filterLowHangingObstacles"] = m_filterLowHangingObstacles;
json["m_filterLedgeSpans"] = m_filterLedgeSpans;
json["m_filterWalkableLowHeightSpans"] = m_filterWalkableLowHeightSpans;
json["m_maxTiles"] = m_maxTiles;
json["m_maxPolysPerTile"] = m_maxPolysPerTile;
json["m_tileSize"] = m_tileSize;
json["m_tileCol"] = m_tileCol;
json["m_tileMemUsage"] = m_tileMemUsage;
json["m_tileBuildTime"] = m_tileBuildTime;
json["m_tileTriCount"] = m_tileTriCount;
outputFile << std::setw(4) << json;
return true;
}

13
NavMeshGenerator/NavMeshGenerator.h
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@ -15,23 +15,24 @@
class NavMeshGenerator
{
public:
NavMeshGenerator(InputGeom* geom, std::shared_ptr<RecastContext> context);
NavMeshGenerator(std::shared_ptr<InputGeom> geom, std::shared_ptr<RecastContext> context);
virtual ~NavMeshGenerator();
bool BuildNavMesh();
void Serialize(const std::filesystem::path& path) const;
bool Serialize(const std::filesystem::path& path, bool saveStatistics = true);
private:
void BuildAllTiles();
void CalculateTileSize();
void Cleanup();
bool WriteStatistics(const std::filesystem::path& path);
unsigned char* BuildTileMesh(const int tx, const int ty, const float* bmin, const float* bmax, int& dataSize);
std::unique_ptr<InputGeom> m_geom;
std::shared_ptr<InputGeom> m_geom;
std::unique_ptr<dtNavMesh, NavMeshDeleter> m_navMesh;
std::unique_ptr<dtNavMeshQuery, NavMeshQueryDeleter> m_navMeshQuery;
std::shared_ptr<rcContext> m_ctx;
unsigned char* m_triareas{};
rcHeightfield* m_solid{};
rcCompactHeightfield* m_chf{};
@ -46,7 +47,7 @@ private:
float m_agentHeight = 2.0f;
float m_agentRadius = 0.6f;
float m_agentMaxClimb = 0.9f;
float m_agentMaxSlope = 50.0f; //45.0f;
float m_agentMaxSlope = 60.0f; // Sample: 45.0f
float m_regionMinSize = 8;
float m_regionMergeSize = 20;
float m_edgeMaxLen = 12.0f;
@ -65,7 +66,7 @@ private:
// Tile configuration
int m_maxTiles = 0;
int m_maxPolysPerTile = 0;
float m_tileSize = 32;
float m_tileSize = 96; //Sample: 32
unsigned int m_tileCol{};
float m_lastBuiltTileBmin[3]{};

66
NavMeshGenerator/NavMeshGenerator.vcxproj.filters
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@ -1,18 +1,6 @@
<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<ItemGroup>
<Filter Include="Source Files">
<UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
<Extensions>cpp;c;cc;cxx;c++;cppm;ixx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
</Filter>
<Filter Include="Header Files">
<UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
<Extensions>h;hh;hpp;hxx;h++;hm;inl;inc;ipp;xsd</Extensions>
</Filter>
<Filter Include="Resource Files">
<UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
<Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
</Filter>
<Filter Include="Recast">
<UniqueIdentifier>{82f0fd75-bb9d-4e6c-849a-71f66d5a8f0a}</UniqueIdentifier>
</Filter>
@ -52,7 +40,7 @@
<Filter Include="Recast\Recast\Include">
<UniqueIdentifier>{54fffb89-f106-45f9-9a78-119f59e17fed}</UniqueIdentifier>
</Filter>
<Filter Include="Source Files\Framework">
<Filter Include="Framework">
<UniqueIdentifier>{c5ca75e6-1ec9-4c06-a733-4323f130f5c4}</UniqueIdentifier>
</Filter>
</ItemGroup>
@ -129,30 +117,22 @@
<ClCompile Include="..\External\recastnavigation\Recast\Source\RecastRegion.cpp">
<Filter>Recast\Recast\Source</Filter>
</ClCompile>
<ClCompile Include="Main.cpp">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="NavMeshGenerator.cpp">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="pch.cpp">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="RecastContext.cpp">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="Framework\ChunkyTriMesh.cpp">
<Filter>Source Files\Framework</Filter>
<Filter>Framework</Filter>
</ClCompile>
<ClCompile Include="Framework\InputGeom.cpp">
<Filter>Source Files\Framework</Filter>
<Filter>Framework</Filter>
</ClCompile>
<ClCompile Include="Framework\MeshLoaderObj.cpp">
<Filter>Source Files\Framework</Filter>
<Filter>Framework</Filter>
</ClCompile>
<ClCompile Include="Framework\PerfTimer.cpp">
<Filter>Source Files\Framework</Filter>
<Filter>Framework</Filter>
</ClCompile>
<ClCompile Include="Main.cpp" />
<ClCompile Include="NavMeshGenerator.cpp" />
<ClCompile Include="pch.cpp" />
<ClCompile Include="RecastContext.cpp" />
</ItemGroup>
<ItemGroup>
<ClInclude Include="..\External\recastnavigation\DebugUtils\Include\DebugDraw.h">
@ -209,35 +189,27 @@
<ClInclude Include="..\External\recastnavigation\Recast\Include\RecastAssert.h">
<Filter>Recast\Recast\Include</Filter>
</ClInclude>
<ClInclude Include="NavMeshGenerator.h">
<Filter>Source Files</Filter>
</ClInclude>
<ClInclude Include="pch.h">
<Filter>Source Files</Filter>
</ClInclude>
<ClInclude Include="NavMeshUtil.h">
<Filter>Source Files</Filter>
</ClInclude>
<ClInclude Include="RecastContext.h">
<Filter>Source Files</Filter>
</ClInclude>
<ClInclude Include="Framework\ChunkyTriMesh.h">
<Filter>Source Files\Framework</Filter>
<Filter>Framework</Filter>
</ClInclude>
<ClInclude Include="Framework\InputGeom.h">
<Filter>Source Files\Framework</Filter>
<Filter>Framework</Filter>
</ClInclude>
<ClInclude Include="Framework\MeshLoaderObj.h">
<Filter>Source Files\Framework</Filter>
<Filter>Framework</Filter>
</ClInclude>
<ClInclude Include="Framework\PerfTimer.h">
<Filter>Source Files\Framework</Filter>
<Filter>Framework</Filter>
</ClInclude>
<ClInclude Include="Framework\Sample.h">
<Filter>Source Files\Framework</Filter>
<Filter>Framework</Filter>
</ClInclude>
<ClInclude Include="Framework\SampleInterfaces.h">
<Filter>Source Files\Framework</Filter>
<Filter>Framework</Filter>
</ClInclude>
<ClInclude Include="NavMeshGenerator.h" />
<ClInclude Include="NavMeshUtil.h" />
<ClInclude Include="pch.h" />
<ClInclude Include="RecastContext.h" />
</ItemGroup>
</Project>

1
NavMeshGenerator/NavMeshUtil.h
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@ -23,6 +23,7 @@ struct NavMeshQueryDeleter
//////////////////////////////////////////////////////////
// Serialization logic
// Note: identical to Recast's demo app so it can be loaded by it
struct NavMeshSetHeader
{
int magic;

9
NavMeshGenerator/pch.h
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@ -1,3 +1,10 @@
#pragma once
#include <filesystem>
// STL
#include <filesystem>
#include <fstream>
#include <iostream>
// External libraries
#include "../External/json/json.hpp"
using njson = nlohmann::json;