add assimp submodule

5 files changed, 1373 insertions, 0 deletions

diff --git a/src/mesh/assimp-master/code/AssetLib/Q3BSP/Q3BSPFileData.h b/src/mesh/assimp-master/code/AssetLib/Q3BSP/Q3BSPFileData.h
new file mode 100644
index 0000000..8ccee0b
--- /dev/null
+++ b/src/mesh/assimp-master/code/AssetLib/Q3BSP/Q3BSPFileData.h
@@ -0,0 +1,214 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+#ifndef ASSIMP_Q3BSPFILEDATA_H_INC
+#define ASSIMP_Q3BSPFILEDATA_H_INC
+
+#include <vector>
+#include <string.h>
+#include <string>
+
+namespace Assimp {
+namespace Q3BSP {
+
+static const unsigned int CE_BSP_LIGHTMAPWIDTH = 128;
+static const unsigned int CE_BSP_LIGHTMAPHEIGHT = 128;
+
+static const unsigned int CE_BSP_LIGHTMAPSIZE = 128*128*3;  ///< = 128( width ) * 128 ( height ) * 3 ( channels / RGB ).
+static const int VERION_Q3LEVEL = 46;                       ///< Supported version.
+
+/// Geometric type enumeration
+enum Q3BSPGeoType {
+    Polygon = 1,
+    Patch,
+    TriangleMesh,
+    Billboard
+};
+
+/// Integer vector.
+struct ceVec3i {
+    int x, y, z;
+    ceVec3i(): x( 0 ), y( 0 ), z( 0 ) { /* empty */ }
+    ceVec3i( int iX, int iY=0, int iZ=0) : x( iX ), y( iY ), z( iZ ) { /* empty */ }
+};
+
+/// the file header
+struct sQ3BSPHeader {
+    char strID[ 4 ]; ///< Should be "IBSP"
+    int iVersion;    ///< 46 for standard levels
+};
+
+/// Describes an entry.
+struct sQ3BSPLump {
+    int iOffset;    ///< Offset from start pointer of file
+    int iSize;      ///< Size of part
+};
+
+struct vec2f {
+    float x,y;
+};
+
+struct vec3f {
+    float x, y, z;
+};
+
+/// Vertex of a Q3 level
+struct sQ3BSPVertex {
+    vec3f vPosition;    ///< Position of vertex
+    vec2f vTexCoord;    ///< (u,v) Texturecoordinate of detailtexture
+    vec2f vLightmap;    ///< (u,v) Texturecoordinate of lightmap
+    vec3f vNormal;      ///< vertex normal
+    unsigned char bColor[ 4 ];          ///< Color in RGBA
+};
+
+/// A face in bsp format info
+struct sQ3BSPFace {
+    int iTextureID;                 ///< Index in texture array
+    int iEffect;                    ///< Index in effect array (-1 = no effect)
+    int iType;                      ///< 1=Polygon, 2=Patch, 3=Mesh, 4=Billboard
+    int iVertexIndex;               ///< Start index of polygon
+    int iNumOfVerts;                ///< Number of vertices
+    int iFaceVertexIndex;           ///< Index of first mesh vertex
+    int iNumOfFaceVerts;            ///< number of mesh vertices
+    int iLightmapID;                ///< Index to the light-map array
+    int iLMapCorner[ 2 ];           ///< edge of the light-map in texture
+    int iLMapSize[ 2 ];             ///< Size of the light-map stored on the texture
+    vec3f vLMapPos;                 ///< 3D origin of the light-map
+    vec3f vLMapVecs[ 2 ];           ///< 3D-s-t-vectors
+    vec3f vNormal;                  ///< Polygon normals
+    int patchWidth, patchHeight;    ///< bezier patch
+};
+
+/// A quake3 texture name.
+struct sQ3BSPTexture {
+    char strName[ 64 ];     ///< Name of the texture without extension
+    int iFlags;             ///< Not used
+    int iContents;          ///< Not used
+};
+
+/// A light-map of the level, size 128 x 128, RGB components.
+struct sQ3BSPLightmap {
+    unsigned char bLMapData[ CE_BSP_LIGHTMAPSIZE ];
+    sQ3BSPLightmap() {
+        ::memset(bLMapData, 0, CE_BSP_LIGHTMAPSIZE );
+    }
+};
+
+struct SubPatch {
+    std::vector<size_t> indices;
+    int lightmapID;
+};
+
+enum eLumps {
+    kEntities = 0,
+    kTextures,
+    kPlanes,
+    kNodes,
+    kLeafs,
+    kLeafFaces,
+    kLeafBrushes,
+    kModels,
+    kBrushes,
+    kBrushSides,
+    kVertices,
+    kMeshVerts,
+    kShaders,
+    kFaces,
+    kLightmaps,
+    kLightVolumes,
+    kVisData,
+    kMaxLumps
+};
+
+struct Q3BSPModel {
+    std::vector<unsigned char> m_Data;
+    std::vector<sQ3BSPLump*> m_Lumps;
+    std::vector<sQ3BSPVertex*> m_Vertices;
+    std::vector<sQ3BSPFace*> m_Faces;
+    std::vector<int> m_Indices;
+    std::vector<sQ3BSPTexture*> m_Textures;
+    std::vector<sQ3BSPLightmap*> m_Lightmaps;
+    std::vector<char> m_EntityData;
+    std::string m_ModelName;
+
+    Q3BSPModel() :
+        m_Data(),
+        m_Lumps(),
+        m_Vertices(),
+        m_Faces(),
+        m_Indices(),
+        m_Textures(),
+        m_Lightmaps(),
+        m_EntityData(),
+        m_ModelName()
+    {
+        // empty
+    }
+
+    ~Q3BSPModel() {
+        for ( unsigned int i=0; i<m_Lumps.size(); i++ ) {
+            delete m_Lumps[ i ];
+        }
+        for ( unsigned int i=0; i<m_Vertices.size(); i++ ) {
+            delete m_Vertices[ i ];
+        }
+        for ( unsigned int i=0; i<m_Faces.size(); i++ ) {
+            delete m_Faces[ i ];
+        }
+        for ( unsigned int i=0; i<m_Textures.size(); i++ ) {
+            delete m_Textures[ i ];
+        }
+        for ( unsigned int i=0; i<m_Lightmaps.size(); i++ ) {
+            delete m_Lightmaps[ i ];
+        }
+
+        m_Lumps.clear();
+        m_Vertices.clear();
+        m_Faces.clear();
+        m_Textures.clear();
+        m_Lightmaps.clear();
+    }
+};
+
+} // Namespace Q3BSP
+} // Namespace Assimp
+
+#endif // ASSIMP_Q3BSPFILEDATA_H_INC
diff --git a/src/mesh/assimp-master/code/AssetLib/Q3BSP/Q3BSPFileImporter.cpp b/src/mesh/assimp-master/code/AssetLib/Q3BSP/Q3BSPFileImporter.cpp
new file mode 100644
index 0000000..db9a4a0
--- /dev/null
+++ b/src/mesh/assimp-master/code/AssetLib/Q3BSP/Q3BSPFileImporter.cpp
@@ -0,0 +1,680 @@
+/*
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+---------------------------------------------------------------------------------------------------
+*/
+
+#ifndef ASSIMP_BUILD_NO_Q3BSP_IMPORTER
+
+#include "Q3BSPFileImporter.h"
+#include "Q3BSPFileData.h"
+#include "Q3BSPFileParser.h"
+
+#include <assimp/DefaultLogger.hpp>
+
+#ifdef ASSIMP_BUILD_NO_OWN_ZLIB
+#include <zlib.h>
+#else
+#include "../contrib/zlib/zlib.h"
+#endif
+
+#include <assimp/DefaultIOSystem.h>
+#include <assimp/StringComparison.h>
+#include <assimp/ZipArchiveIOSystem.h>
+#include <assimp/ai_assert.h>
+#include <assimp/importerdesc.h>
+#include <assimp/mesh.h>
+#include <assimp/scene.h>
+#include <assimp/types.h>
+#include <sstream>
+#include <vector>
+
+static const aiImporterDesc desc = {
+    "Quake III BSP Importer",
+    "",
+    "",
+    "",
+    aiImporterFlags_SupportBinaryFlavour,
+    0,
+    0,
+    0,
+    0,
+    "bsp pk3"
+};
+
+namespace Assimp {
+
+using namespace Q3BSP;
+
+// ------------------------------------------------------------------------------------------------
+//  Local function to create a material key name.
+static void createKey(int id1, int id2, std::string &key) {
+    std::ostringstream str;
+    str << id1 << "." << id2;
+    key = str.str();
+}
+
+// ------------------------------------------------------------------------------------------------
+//  Local function to extract the texture ids from a material key-name.
+static void extractIds(const std::string &key, int &id1, int &id2) {
+    id1 = -1;
+    id2 = -1;
+    if (key.empty()) {
+        return;
+    }
+
+    const std::string::size_type pos = key.find('.');
+    if (std::string::npos == pos) {
+        return;
+    }
+
+    std::string tmp1 = key.substr(0, pos);
+    std::string tmp2 = key.substr(pos + 1, key.size() - pos - 1);
+    id1 = atoi(tmp1.c_str());
+    id2 = atoi(tmp2.c_str());
+}
+
+// ------------------------------------------------------------------------------------------------
+//  Local helper function to normalize filenames.
+static void normalizePathName(const std::string &rPath, std::string &normalizedPath) {
+    normalizedPath = std::string();
+    if (rPath.empty()) {
+        return;
+    }
+
+#ifdef _WIN32
+    std::string sep = "\\";
+#else
+    std::string sep = "/";
+#endif
+
+    static const unsigned int numDelimiters = 2;
+    const char delimiters[numDelimiters] = { '/', '\\' };
+    normalizedPath = rPath;
+    for (const char delimiter : delimiters) {
+        for (size_t j = 0; j < normalizedPath.size(); ++j) {
+            if (normalizedPath[j] == delimiter) {
+                normalizedPath[j] = sep[0];
+            }
+        }
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+//  Constructor.
+Q3BSPFileImporter::Q3BSPFileImporter() :
+        m_pCurrentMesh(nullptr), m_pCurrentFace(nullptr), m_MaterialLookupMap(), mTextures() {
+    // empty
+}
+
+// ------------------------------------------------------------------------------------------------
+//  Destructor.
+Q3BSPFileImporter::~Q3BSPFileImporter() {
+    // Clear face-to-material map
+    for (FaceMap::iterator it = m_MaterialLookupMap.begin(); it != m_MaterialLookupMap.end(); ++it) {
+        const std::string &matName = it->first;
+        if (!matName.empty()) {
+            delete it->second;
+        }
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+//  Returns true if the loader can read this.
+bool Q3BSPFileImporter::CanRead(const std::string &filename, IOSystem * /*pIOHandler*/, bool checkSig) const {
+    if (!checkSig) {
+        return SimpleExtensionCheck(filename, "pk3", "bsp");
+    }
+    return false;
+}
+
+// ------------------------------------------------------------------------------------------------
+//  Adds extensions.
+const aiImporterDesc *Q3BSPFileImporter::GetInfo() const {
+    return &desc;
+}
+
+// ------------------------------------------------------------------------------------------------
+//  Import method.
+void Q3BSPFileImporter::InternReadFile(const std::string &rFile, aiScene *scene, IOSystem *ioHandler) {
+    ZipArchiveIOSystem Archive(ioHandler, rFile);
+    if (!Archive.isOpen()) {
+        throw DeadlyImportError("Failed to open file ", rFile, ".");
+    }
+
+    std::string archiveName, mapName;
+    separateMapName(rFile, archiveName, mapName);
+
+    if (mapName.empty()) {
+        if (!findFirstMapInArchive(Archive, mapName)) {
+            return;
+        }
+    }
+
+    Q3BSPFileParser fileParser(mapName, &Archive);
+    Q3BSPModel *pBSPModel = fileParser.getModel();
+    if (nullptr != pBSPModel) {
+        CreateDataFromImport(pBSPModel, scene, &Archive);
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+//  Separates the map name from the import name.
+void Q3BSPFileImporter::separateMapName(const std::string &importName, std::string &archiveName, std::string &mapName) {
+    archiveName = std::string();
+    mapName = std::string();
+    if (importName.empty()) {
+        return;
+    }
+
+    const std::string::size_type pos = importName.rfind(',');
+    if (std::string::npos == pos) {
+        archiveName = importName;
+        return;
+    }
+
+    archiveName = importName.substr(0, pos);
+    mapName = importName.substr(pos, importName.size() - pos - 1);
+}
+
+// ------------------------------------------------------------------------------------------------
+//  Returns the first map in the map archive.
+bool Q3BSPFileImporter::findFirstMapInArchive(ZipArchiveIOSystem &bspArchive, std::string &mapName) {
+    mapName = std::string();
+    std::vector<std::string> fileList;
+    bspArchive.getFileListExtension(fileList, "bsp");
+    if (fileList.empty()) {
+        return false;
+    }
+
+    std::vector<std::string>::iterator it(fileList.begin());
+    for (; it != fileList.end(); ++it) {
+        const std::string::size_type pos = (*it).find("maps/");
+        if (std::string::npos != pos) {
+            std::string::size_type extPos = (*it).find(".bsp");
+            if (std::string::npos != extPos) {
+                mapName = *it;
+                return true;
+            }
+        }
+    }
+
+    return false;
+}
+
+// ------------------------------------------------------------------------------------------------
+//  Creates the assimp specific data.
+void Q3BSPFileImporter::CreateDataFromImport(const Q3BSP::Q3BSPModel *pModel, aiScene *pScene,
+        ZipArchiveIOSystem *pArchive) {
+    if (nullptr == pModel || nullptr == pScene) {
+        return;
+    }
+
+    pScene->mRootNode = new aiNode;
+    if (!pModel->m_ModelName.empty()) {
+        pScene->mRootNode->mName.Set(pModel->m_ModelName);
+    }
+
+    // Create the face to material relation map
+    createMaterialMap(pModel);
+
+    // Create all nodes
+    CreateNodes(pModel, pScene, pScene->mRootNode);
+
+    // Create the assigned materials
+    createMaterials(pModel, pScene, pArchive);
+}
+
+// ------------------------------------------------------------------------------------------------
+//  Creates all assimp nodes.
+void Q3BSPFileImporter::CreateNodes(const Q3BSP::Q3BSPModel *pModel, aiScene *pScene,
+        aiNode *pParent) {
+    if (nullptr == pModel) {
+        return;
+    }
+
+    unsigned int matIdx(0);
+    std::vector<aiMesh *> MeshArray;
+    std::vector<aiNode *> NodeArray;
+    for (FaceMapIt it = m_MaterialLookupMap.begin(); it != m_MaterialLookupMap.end(); ++it) {
+        std::vector<Q3BSP::sQ3BSPFace *> *pArray = (*it).second;
+        size_t numVerts = countData(*pArray);
+        if (0 != numVerts) {
+            aiMesh *pMesh(nullptr);
+            aiNode *pNode = CreateTopology(pModel, matIdx, *pArray, &pMesh);
+            if (nullptr != pNode) {
+                NodeArray.push_back(pNode);
+                MeshArray.push_back(pMesh);
+            }
+        }
+        matIdx++;
+    }
+
+    pScene->mNumMeshes = static_cast<unsigned int>(MeshArray.size());
+    if (pScene->mNumMeshes > 0) {
+        pScene->mMeshes = new aiMesh *[pScene->mNumMeshes];
+        for (size_t i = 0; i < MeshArray.size(); i++) {
+            aiMesh *pMesh = MeshArray[i];
+            if (nullptr != pMesh) {
+                pScene->mMeshes[i] = pMesh;
+            }
+        }
+    }
+
+    pParent->mNumChildren = static_cast<unsigned int>(MeshArray.size());
+    pParent->mChildren = new aiNode *[pScene->mRootNode->mNumChildren];
+    for (size_t i = 0; i < NodeArray.size(); i++) {
+        aiNode *pNode = NodeArray[i];
+        pNode->mParent = pParent;
+        pParent->mChildren[i] = pNode;
+        pParent->mChildren[i]->mMeshes[0] = static_cast<unsigned int>(i);
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+//  Creates the topology.
+aiNode *Q3BSPFileImporter::CreateTopology(const Q3BSP::Q3BSPModel *pModel, unsigned int materialIdx,
+        std::vector<sQ3BSPFace *> &rArray, aiMesh **pMesh) {
+    size_t numVerts = countData(rArray);
+    if (0 == numVerts) {
+        return nullptr;
+    }
+
+    size_t numFaces = countFaces(rArray);
+    if (0 == numFaces) {
+        return nullptr;
+    }
+
+    aiMesh *mesh = new aiMesh;
+    size_t numTriangles = countTriangles(rArray);
+    mesh->mPrimitiveTypes = aiPrimitiveType_TRIANGLE;
+
+    mesh->mFaces = new aiFace[numTriangles];
+    mesh->mNumFaces = static_cast<unsigned int>(numTriangles);
+
+    mesh->mNumVertices = static_cast<unsigned int>(numVerts);
+    mesh->mVertices = new aiVector3D[numVerts];
+    mesh->mNormals = new aiVector3D[numVerts];
+    mesh->mTextureCoords[0] = new aiVector3D[numVerts];
+    mesh->mTextureCoords[1] = new aiVector3D[numVerts];
+    mesh->mMaterialIndex = materialIdx;
+
+    unsigned int faceIdx = 0;
+    unsigned int vertIdx = 0;
+    mesh->mNumUVComponents[0] = 2;
+    mesh->mNumUVComponents[1] = 2;
+    for (std::vector<sQ3BSPFace *>::const_iterator it = rArray.begin(); it != rArray.end(); ++it) {
+        Q3BSP::sQ3BSPFace *pQ3BSPFace = *it;
+        ai_assert(nullptr != pQ3BSPFace);
+        if (nullptr == pQ3BSPFace) {
+            continue;
+        }
+
+        if (pQ3BSPFace->iNumOfFaceVerts > 0) {
+            if (pQ3BSPFace->iType == Polygon || pQ3BSPFace->iType == TriangleMesh) {
+                createTriangleTopology(pModel, pQ3BSPFace, mesh, faceIdx, vertIdx);
+            }
+        }
+    }
+
+    aiNode *pNode = new aiNode;
+    pNode->mNumMeshes = 1;
+    pNode->mMeshes = new unsigned int[1];
+    *pMesh = mesh;
+
+    return pNode;
+}
+
+// ------------------------------------------------------------------------------------------------
+//  Creates the triangle topology from a face array.
+void Q3BSPFileImporter::createTriangleTopology(const Q3BSP::Q3BSPModel *pModel, sQ3BSPFace *pQ3BSPFace,
+        aiMesh *pMesh, unsigned int &faceIdx, unsigned int &vertIdx) {
+    ai_assert(faceIdx < pMesh->mNumFaces);
+
+    m_pCurrentFace = getNextFace(pMesh, faceIdx);
+    if (nullptr == m_pCurrentFace) {
+        return;
+    }
+
+    m_pCurrentFace->mNumIndices = 3;
+    m_pCurrentFace->mIndices = new unsigned int[m_pCurrentFace->mNumIndices];
+
+    size_t idx(0);
+    for (size_t i = 0; i < (size_t)pQ3BSPFace->iNumOfFaceVerts; ++i) {
+        const size_t index = pQ3BSPFace->iVertexIndex + pModel->m_Indices[pQ3BSPFace->iFaceVertexIndex + i];
+        if (index >= pModel->m_Vertices.size()) {
+            continue;
+        }
+
+        sQ3BSPVertex *pVertex = pModel->m_Vertices[index];
+        if (nullptr == pVertex) {
+            continue;
+        }
+        if (idx > 2) {
+            idx = 0;
+            m_pCurrentFace = getNextFace(pMesh, faceIdx);
+            if (nullptr != m_pCurrentFace) {
+                m_pCurrentFace->mNumIndices = 3;
+                m_pCurrentFace->mIndices = new unsigned int[3];
+                m_pCurrentFace->mIndices[idx] = vertIdx;
+            }
+        }
+
+        pMesh->mVertices[vertIdx].Set(pVertex->vPosition.x, pVertex->vPosition.y, pVertex->vPosition.z);
+        pMesh->mNormals[vertIdx].Set(pVertex->vNormal.x, pVertex->vNormal.y, pVertex->vNormal.z);
+
+        pMesh->mTextureCoords[0][vertIdx].Set(pVertex->vTexCoord.x, pVertex->vTexCoord.y, 0.0f);
+        pMesh->mTextureCoords[1][vertIdx].Set(pVertex->vLightmap.x, pVertex->vLightmap.y, 0.0f);
+
+        vertIdx++;
+        idx++;
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+//  Creates all referenced materials.
+void Q3BSPFileImporter::createMaterials(const Q3BSP::Q3BSPModel *pModel, aiScene *pScene,
+        ZipArchiveIOSystem *pArchive) {
+    if (m_MaterialLookupMap.empty()) {
+        return;
+    }
+
+    pScene->mMaterials = new aiMaterial *[m_MaterialLookupMap.size()];
+    aiString aiMatName;
+    int textureId(-1), lightmapId(-1);
+    for (FaceMapIt it = m_MaterialLookupMap.begin(); it != m_MaterialLookupMap.end();
+            ++it) {
+        const std::string matName(it->first);
+        if (matName.empty()) {
+            continue;
+        }
+
+        aiMatName.Set(matName);
+        aiMaterial *pMatHelper = new aiMaterial;
+        pMatHelper->AddProperty(&aiMatName, AI_MATKEY_NAME);
+
+        extractIds(matName, textureId, lightmapId);
+
+        // Adding the texture
+        if (-1 != textureId) {
+            sQ3BSPTexture *pTexture = pModel->m_Textures[textureId];
+            if (nullptr != pTexture) {
+                std::string tmp("*"), texName;
+                tmp += pTexture->strName;
+                tmp += ".jpg";
+                normalizePathName(tmp, texName);
+
+                if (!importTextureFromArchive(pModel, pArchive, pScene, pMatHelper, textureId)) {
+                    ASSIMP_LOG_ERROR("Cannot import texture from archive ", texName);
+                }
+            }
+        }
+        if (-1 != lightmapId) {
+            importLightmap(pModel, pScene, pMatHelper, lightmapId);
+        }
+        pScene->mMaterials[pScene->mNumMaterials] = pMatHelper;
+        pScene->mNumMaterials++;
+    }
+    pScene->mNumTextures = static_cast<unsigned int>(mTextures.size());
+    pScene->mTextures = new aiTexture *[pScene->mNumTextures];
+    std::copy(mTextures.begin(), mTextures.end(), pScene->mTextures);
+}
+
+// ------------------------------------------------------------------------------------------------
+//  Counts the number of referenced vertices.
+size_t Q3BSPFileImporter::countData(const std::vector<sQ3BSPFace *> &faceArray) const {
+    size_t numVerts(0);
+    for (std::vector<sQ3BSPFace *>::const_iterator it = faceArray.begin(); it != faceArray.end();
+            ++it) {
+        sQ3BSPFace *pQ3BSPFace = *it;
+        if (pQ3BSPFace->iType == Polygon || pQ3BSPFace->iType == TriangleMesh) {
+            Q3BSP::sQ3BSPFace *face = *it;
+            if (nullptr != face) {
+                numVerts += face->iNumOfFaceVerts;
+            }
+        }
+    }
+
+    return numVerts;
+}
+
+// ------------------------------------------------------------------------------------------------
+//  Counts the faces with vertices.
+size_t Q3BSPFileImporter::countFaces(const std::vector<Q3BSP::sQ3BSPFace *> &rArray) const {
+    size_t numFaces = 0;
+    for (std::vector<sQ3BSPFace *>::const_iterator it = rArray.begin(); it != rArray.end();
+            ++it) {
+        Q3BSP::sQ3BSPFace *pQ3BSPFace = *it;
+        if (pQ3BSPFace->iNumOfFaceVerts > 0) {
+            numFaces++;
+        }
+    }
+
+    return numFaces;
+}
+
+// ------------------------------------------------------------------------------------------------
+//  Counts the number of triangles in a Q3-face-array.
+size_t Q3BSPFileImporter::countTriangles(const std::vector<Q3BSP::sQ3BSPFace *> &rArray) const {
+    size_t numTriangles = 0;
+    for (std::vector<Q3BSP::sQ3BSPFace *>::const_iterator it = rArray.begin(); it != rArray.end();
+            ++it) {
+        const Q3BSP::sQ3BSPFace *pQ3BSPFace = *it;
+        if (nullptr != pQ3BSPFace) {
+            numTriangles += pQ3BSPFace->iNumOfFaceVerts / 3;
+        }
+    }
+
+    return numTriangles;
+}
+
+// ------------------------------------------------------------------------------------------------
+//  Creates the faces-to-material map.
+void Q3BSPFileImporter::createMaterialMap(const Q3BSP::Q3BSPModel *pModel) {
+    std::string key;
+    std::vector<sQ3BSPFace *> *pCurFaceArray = nullptr;
+    for (size_t idx = 0; idx < pModel->m_Faces.size(); idx++) {
+        Q3BSP::sQ3BSPFace *pQ3BSPFace = pModel->m_Faces[idx];
+        const int texId = pQ3BSPFace->iTextureID;
+        const int lightMapId = pQ3BSPFace->iLightmapID;
+        createKey(texId, lightMapId, key);
+        FaceMapIt it = m_MaterialLookupMap.find(key);
+        if (m_MaterialLookupMap.end() == it) {
+            pCurFaceArray = new std::vector<Q3BSP::sQ3BSPFace *>;
+            m_MaterialLookupMap[key] = pCurFaceArray;
+        } else {
+            pCurFaceArray = (*it).second;
+        }
+        ai_assert(nullptr != pCurFaceArray);
+        if (nullptr != pCurFaceArray) {
+            pCurFaceArray->push_back(pQ3BSPFace);
+        }
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+//  Returns the next face.
+aiFace *Q3BSPFileImporter::getNextFace(aiMesh *mesh, unsigned int &faceIdx) {
+    aiFace *face(nullptr);
+    if (faceIdx < mesh->mNumFaces) {
+        face = &mesh->mFaces[faceIdx];
+        ++faceIdx;
+    }
+
+    return face;
+}
+
+// ------------------------------------------------------------------------------------------------
+//  Imports a texture file.
+bool Q3BSPFileImporter::importTextureFromArchive(const Q3BSP::Q3BSPModel *model,
+        ZipArchiveIOSystem *archive, aiScene *,
+        aiMaterial *pMatHelper, int textureId) {
+    if (nullptr == archive || nullptr == pMatHelper) {
+        return false;
+    }
+
+    if (textureId < 0 || textureId >= static_cast<int>(model->m_Textures.size())) {
+        return false;
+    }
+
+    bool res = true;
+    sQ3BSPTexture *pTexture = model->m_Textures[textureId];
+    if (!pTexture) {
+        return false;
+    }
+
+    std::vector<std::string> supportedExtensions;
+    supportedExtensions.push_back(".jpg");
+    supportedExtensions.push_back(".png");
+    supportedExtensions.push_back(".tga");
+    std::string textureName, ext;
+    if (expandFile(archive, pTexture->strName, supportedExtensions, textureName, ext)) {
+        IOStream *pTextureStream = archive->Open(textureName.c_str());
+        if (pTextureStream) {
+            size_t texSize = pTextureStream->FileSize();
+            aiTexture *curTexture = new aiTexture;
+            curTexture->mHeight = 0;
+            curTexture->mWidth = static_cast<unsigned int>(texSize);
+            unsigned char *pData = new unsigned char[curTexture->mWidth];
+            size_t readSize = pTextureStream->Read(pData, sizeof(unsigned char), curTexture->mWidth);
+            (void)readSize;
+            ai_assert(readSize == curTexture->mWidth);
+            curTexture->pcData = reinterpret_cast<aiTexel *>(pData);
+            curTexture->achFormatHint[0] = ext[1];
+            curTexture->achFormatHint[1] = ext[2];
+            curTexture->achFormatHint[2] = ext[3];
+            curTexture->achFormatHint[3] = '\0';
+            res = true;
+
+            aiString name;
+            name.data[0] = '*';
+            name.length = 1 + ASSIMP_itoa10(name.data + 1, static_cast<unsigned int>(MAXLEN - 1), static_cast<int32_t>(mTextures.size()));
+
+            archive->Close(pTextureStream);
+
+            pMatHelper->AddProperty(&name, AI_MATKEY_TEXTURE_DIFFUSE(0));
+            mTextures.push_back(curTexture);
+        } else {
+            // If it doesn't exist in the archive, it is probably just a reference to an external file.
+            // We'll leave it up to the user to figure out which extension the file has.
+            aiString name;
+            strncpy(name.data, pTexture->strName, sizeof name.data);
+            name.length = static_cast<ai_uint32>(strlen(name.data));
+            pMatHelper->AddProperty(&name, AI_MATKEY_TEXTURE_DIFFUSE(0));
+        }
+    }
+
+    return res;
+}
+
+// ------------------------------------------------------------------------------------------------
+//  Imports a light map file.
+bool Q3BSPFileImporter::importLightmap(const Q3BSP::Q3BSPModel *pModel, aiScene *pScene,
+        aiMaterial *pMatHelper, int lightmapId) {
+    if (nullptr == pModel || nullptr == pScene || nullptr == pMatHelper) {
+        return false;
+    }
+
+    if (lightmapId < 0 || lightmapId >= static_cast<int>(pModel->m_Lightmaps.size())) {
+        return false;
+    }
+
+    sQ3BSPLightmap *pLightMap = pModel->m_Lightmaps[lightmapId];
+    if (nullptr == pLightMap) {
+        return false;
+    }
+
+    aiTexture *pTexture = new aiTexture;
+
+    pTexture->mWidth = CE_BSP_LIGHTMAPWIDTH;
+    pTexture->mHeight = CE_BSP_LIGHTMAPHEIGHT;
+    pTexture->pcData = new aiTexel[CE_BSP_LIGHTMAPWIDTH * CE_BSP_LIGHTMAPHEIGHT];
+
+    ::memcpy(pTexture->pcData, pLightMap->bLMapData, pTexture->mWidth);
+    size_t p = 0;
+    for (size_t i = 0; i < CE_BSP_LIGHTMAPWIDTH * CE_BSP_LIGHTMAPHEIGHT; ++i) {
+        pTexture->pcData[i].r = pLightMap->bLMapData[p++];
+        pTexture->pcData[i].g = pLightMap->bLMapData[p++];
+        pTexture->pcData[i].b = pLightMap->bLMapData[p++];
+        pTexture->pcData[i].a = 0xFF;
+    }
+
+    aiString name;
+    name.data[0] = '*';
+    name.length = 1 + ASSIMP_itoa10(name.data + 1, static_cast<unsigned int>(MAXLEN - 1), static_cast<int32_t>(mTextures.size()));
+
+    pMatHelper->AddProperty(&name, AI_MATKEY_TEXTURE_LIGHTMAP(1));
+    mTextures.push_back(pTexture);
+
+    return true;
+}
+
+// ------------------------------------------------------------------------------------------------
+//  Will search for a supported extension.
+bool Q3BSPFileImporter::expandFile(ZipArchiveIOSystem *pArchive, const std::string &rFilename,
+        const std::vector<std::string> &rExtList, std::string &rFile,
+        std::string &rExt) {
+    ai_assert(nullptr != pArchive);
+    ai_assert(!rFilename.empty());
+
+    if (rExtList.empty()) {
+        rFile = rFilename;
+        rExt = std::string();
+        return true;
+    }
+
+    bool found = false;
+    for (std::vector<std::string>::const_iterator it = rExtList.begin(); it != rExtList.end(); ++it) {
+        const std::string textureName = rFilename + *it;
+        if (pArchive->Exists(textureName.c_str())) {
+            rExt = *it;
+            rFile = textureName;
+            found = true;
+            break;
+        }
+    }
+
+    return found;
+}
+
+// ------------------------------------------------------------------------------------------------
+
+} // Namespace Assimp
+
+#endif // ASSIMP_BUILD_NO_Q3BSP_IMPORTER
diff --git a/src/mesh/assimp-master/code/AssetLib/Q3BSP/Q3BSPFileImporter.h b/src/mesh/assimp-master/code/AssetLib/Q3BSP/Q3BSPFileImporter.h
new file mode 100644
index 0000000..fdcfff8
--- /dev/null
+++ b/src/mesh/assimp-master/code/AssetLib/Q3BSP/Q3BSPFileImporter.h
@@ -0,0 +1,118 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+#ifndef ASSIMP_Q3BSPFILEIMPORTER_H_INC
+#define ASSIMP_Q3BSPFILEIMPORTER_H_INC
+
+#include <assimp/BaseImporter.h>
+
+#include <map>
+#include <string>
+
+struct aiMesh;
+struct aiNode;
+struct aiFace;
+struct aiMaterial;
+struct aiTexture;
+
+namespace Assimp {
+    class ZipArchiveIOSystem;
+
+namespace Q3BSP {
+    struct Q3BSPModel;
+    struct sQ3BSPFace;
+}
+
+// ------------------------------------------------------------------------------------------------
+/** Loader to import BSP-levels from a PK3 archive or from a unpacked BSP-level.
+ */
+// ------------------------------------------------------------------------------------------------
+class Q3BSPFileImporter : public BaseImporter {
+public:
+    /// @brief  Default constructor.
+    Q3BSPFileImporter();
+
+    /// @brief  Destructor.
+    ~Q3BSPFileImporter() override;
+
+    /// @brief  Returns whether the class can handle the format of the given file.
+    /// @remark See BaseImporter::CanRead() for details.
+    bool CanRead( const std::string& pFile, IOSystem* pIOHandler, bool checkSig ) const override;
+
+protected:
+    using FaceMap = std::map<std::string, std::vector<Q3BSP::sQ3BSPFace*>*>;
+    using FaceMapIt = std::map<std::string, std::vector<Q3BSP::sQ3BSPFace*>* >::iterator;
+    using FaceMapConstIt = std::map<std::string, std::vector<Q3BSP::sQ3BSPFace*>*>::const_iterator;
+
+    const aiImporterDesc* GetInfo () const override;
+    void InternReadFile(const std::string& pFile, aiScene* pScene, IOSystem* pIOHandler) override;
+    void separateMapName( const std::string &rImportName, std::string &rArchiveName, std::string &rMapName );
+    bool findFirstMapInArchive(ZipArchiveIOSystem &rArchive, std::string &rMapName );
+    void CreateDataFromImport( const Q3BSP::Q3BSPModel *pModel, aiScene* pScene, ZipArchiveIOSystem *pArchive );
+    void CreateNodes( const Q3BSP::Q3BSPModel *pModel, aiScene* pScene, aiNode *pParent );
+    aiNode *CreateTopology( const Q3BSP::Q3BSPModel *pModel, unsigned int materialIdx,
+        std::vector<Q3BSP::sQ3BSPFace*> &rArray, aiMesh  **pMesh );
+    void createTriangleTopology( const Q3BSP::Q3BSPModel *pModel, Q3BSP::sQ3BSPFace *pQ3BSPFace, aiMesh* pMesh, unsigned int &rFaceIdx,
+        unsigned int &rVertIdx  );
+    void createMaterials( const Q3BSP::Q3BSPModel *pModel, aiScene* pScene, ZipArchiveIOSystem *pArchive );
+    size_t countData( const std::vector<Q3BSP::sQ3BSPFace*> &rArray ) const;
+    size_t countFaces( const std::vector<Q3BSP::sQ3BSPFace*> &rArray ) const;
+    size_t countTriangles( const std::vector<Q3BSP::sQ3BSPFace*> &rArray ) const;
+    void createMaterialMap( const Q3BSP::Q3BSPModel *pModel);
+    aiFace *getNextFace( aiMesh *pMesh, unsigned int &rFaceIdx );
+    bool importTextureFromArchive( const Q3BSP::Q3BSPModel *pModel, ZipArchiveIOSystem *pArchive, aiScene* pScene,
+        aiMaterial *pMatHelper, int textureId );
+    bool importLightmap( const Q3BSP::Q3BSPModel *pModel, aiScene* pScene, aiMaterial *pMatHelper, int lightmapId );
+    bool importEntities( const Q3BSP::Q3BSPModel *pModel, aiScene* pScene );
+    bool expandFile(ZipArchiveIOSystem *pArchive, const std::string &rFilename, const std::vector<std::string> &rExtList,
+        std::string &rFile, std::string &rExt );
+
+private:
+    aiMesh *m_pCurrentMesh;
+    aiFace *m_pCurrentFace;
+    FaceMap m_MaterialLookupMap;
+    std::vector<aiTexture*> mTextures;
+};
+
+// ------------------------------------------------------------------------------------------------
+
+} // Namespace Assimp
+
+#endif // ASSIMP_Q3BSPFILEIMPORTER_H_INC
diff --git a/src/mesh/assimp-master/code/AssetLib/Q3BSP/Q3BSPFileParser.cpp b/src/mesh/assimp-master/code/AssetLib/Q3BSP/Q3BSPFileParser.cpp
new file mode 100644
index 0000000..910da5b
--- /dev/null
+++ b/src/mesh/assimp-master/code/AssetLib/Q3BSP/Q3BSPFileParser.cpp
@@ -0,0 +1,272 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+
+#ifndef ASSIMP_BUILD_NO_Q3BSP_IMPORTER
+
+#include "Q3BSPFileParser.h"
+#include "Q3BSPFileData.h"
+#include <vector>
+#include <assimp/DefaultIOSystem.h>
+#include <assimp/ZipArchiveIOSystem.h>
+#include <assimp/ai_assert.h>
+
+namespace Assimp {
+
+using namespace Q3BSP;
+
+// ------------------------------------------------------------------------------------------------
+Q3BSPFileParser::Q3BSPFileParser( const std::string &mapName, ZipArchiveIOSystem *pZipArchive ) :
+    m_sOffset( 0 ),
+    m_Data(),
+    m_pModel(nullptr),
+    m_pZipArchive( pZipArchive )
+{
+    ai_assert(nullptr != m_pZipArchive );
+    ai_assert( !mapName.empty() );
+
+    if ( !readData( mapName ) )
+        return;
+
+    m_pModel = new Q3BSPModel;
+    m_pModel->m_ModelName = mapName;
+    if ( !parseFile() ) {
+        delete m_pModel;
+        m_pModel = nullptr;
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+Q3BSPFileParser::~Q3BSPFileParser() {
+    delete m_pModel;
+}
+
+// ------------------------------------------------------------------------------------------------
+Q3BSP::Q3BSPModel *Q3BSPFileParser::getModel() const {
+    return m_pModel;
+}
+
+// ------------------------------------------------------------------------------------------------
+bool Q3BSPFileParser::readData( const std::string &rMapName ) {
+    if ( !m_pZipArchive->Exists( rMapName.c_str() ) )
+        return false;
+
+    IOStream *pMapFile = m_pZipArchive->Open( rMapName.c_str() );
+    if ( nullptr == pMapFile )
+        return false;
+
+    const size_t size = pMapFile->FileSize();
+    m_Data.resize( size );
+
+    const size_t readSize = pMapFile->Read( &m_Data[0], sizeof( char ), size );
+    if ( readSize != size ) {
+        m_Data.clear();
+        m_pZipArchive->Close(pMapFile);
+        return false;
+    }
+    m_pZipArchive->Close( pMapFile );
+
+    return true;
+}
+
+// ------------------------------------------------------------------------------------------------
+bool Q3BSPFileParser::parseFile() {
+    if ( m_Data.empty() ) {
+        return false;
+    }
+
+    if ( !validateFormat() )
+    {
+        return false;
+    }
+
+    // Imports the dictionary of the level
+    getLumps();
+
+    // Count data and prepare model data
+    countLumps();
+
+    // Read in Vertices
+    getVertices();
+
+    // Read in Indices
+    getIndices();
+
+    // Read Faces
+    getFaces();
+
+    // Read Textures
+    getTextures();
+
+    // Read Lightmaps
+    getLightMaps();
+
+    // Load the entities
+    getEntities();
+
+    return true;
+}
+
+// ------------------------------------------------------------------------------------------------
+bool Q3BSPFileParser::validateFormat()
+{
+    sQ3BSPHeader *pHeader = (sQ3BSPHeader*) &m_Data[ 0 ];
+    m_sOffset += sizeof( sQ3BSPHeader );
+
+    // Version and identify string validation
+    if (pHeader->strID[ 0 ] != 'I' || pHeader->strID[ 1 ] != 'B' || pHeader->strID[ 2 ] != 'S'
+        || pHeader->strID[ 3 ] != 'P')
+    {
+        return false;
+    }
+
+    return true;
+}
+
+// ------------------------------------------------------------------------------------------------
+void Q3BSPFileParser::getLumps()
+{
+    size_t Offset = m_sOffset;
+    m_pModel->m_Lumps.resize( kMaxLumps );
+    for ( size_t idx=0; idx < kMaxLumps; idx++ )
+    {
+        sQ3BSPLump *pLump = new sQ3BSPLump;
+        memcpy( pLump, &m_Data[ Offset ], sizeof( sQ3BSPLump ) );
+        Offset += sizeof( sQ3BSPLump );
+        m_pModel->m_Lumps[ idx ] = pLump;
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+void Q3BSPFileParser::countLumps()
+{
+    m_pModel->m_Vertices.resize( m_pModel->m_Lumps[ kVertices ]->iSize / sizeof( sQ3BSPVertex ) );
+    m_pModel->m_Indices.resize( m_pModel->m_Lumps[ kMeshVerts ]->iSize  / sizeof( int ) );
+    m_pModel->m_Faces.resize( m_pModel->m_Lumps[ kFaces ]->iSize / sizeof( sQ3BSPFace ) );
+    m_pModel->m_Textures.resize( m_pModel->m_Lumps[ kTextures ]->iSize / sizeof( sQ3BSPTexture ) );
+    m_pModel->m_Lightmaps.resize( m_pModel->m_Lumps[ kLightmaps ]->iSize / sizeof( sQ3BSPLightmap ) );
+}
+
+// ------------------------------------------------------------------------------------------------
+void Q3BSPFileParser::getVertices()
+{
+    size_t Offset = m_pModel->m_Lumps[ kVertices ]->iOffset;
+    for ( size_t idx = 0; idx < m_pModel->m_Vertices.size(); idx++ )
+    {
+        sQ3BSPVertex *pVertex = new sQ3BSPVertex;
+        memcpy( pVertex, &m_Data[ Offset ], sizeof( sQ3BSPVertex ) );
+        Offset += sizeof( sQ3BSPVertex );
+        m_pModel->m_Vertices[ idx ] = pVertex;
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+void Q3BSPFileParser::getIndices()
+{
+    ai_assert(nullptr != m_pModel );
+
+    sQ3BSPLump *lump = m_pModel->m_Lumps[ kMeshVerts ];
+    size_t Offset = (size_t) lump->iOffset;
+    const size_t nIndices = lump->iSize / sizeof( int );
+    m_pModel->m_Indices.resize( nIndices );
+    memcpy( &m_pModel->m_Indices[ 0 ], &m_Data[ Offset ], lump->iSize );
+}
+
+// ------------------------------------------------------------------------------------------------
+void Q3BSPFileParser::getFaces()
+{
+    ai_assert(nullptr != m_pModel );
+
+    size_t Offset = m_pModel->m_Lumps[ kFaces ]->iOffset;
+    for ( size_t idx = 0; idx < m_pModel->m_Faces.size(); idx++ )
+    {
+        sQ3BSPFace *pFace = new sQ3BSPFace;
+        memcpy( pFace, &m_Data[ Offset ], sizeof( sQ3BSPFace ) );
+        m_pModel->m_Faces[ idx ] = pFace;
+        Offset += sizeof( sQ3BSPFace );
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+void Q3BSPFileParser::getTextures()
+{
+    ai_assert(nullptr != m_pModel );
+
+    size_t Offset = m_pModel->m_Lumps[ kTextures ]->iOffset;
+    for ( size_t idx=0; idx < m_pModel->m_Textures.size(); idx++ )
+    {
+        sQ3BSPTexture *pTexture = new sQ3BSPTexture;
+        memcpy( pTexture, &m_Data[ Offset ], sizeof(sQ3BSPTexture) );
+        m_pModel->m_Textures[ idx ] = pTexture;
+        Offset += sizeof(sQ3BSPTexture);
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+void Q3BSPFileParser::getLightMaps()
+{
+    ai_assert(nullptr != m_pModel );
+
+    size_t Offset = m_pModel->m_Lumps[kLightmaps]->iOffset;
+    for ( size_t idx=0; idx < m_pModel->m_Lightmaps.size(); idx++ )
+    {
+        sQ3BSPLightmap *pLightmap = new sQ3BSPLightmap;
+        memcpy( pLightmap, &m_Data[ Offset ], sizeof( sQ3BSPLightmap ) );
+        Offset += sizeof( sQ3BSPLightmap );
+        m_pModel->m_Lightmaps[ idx ] = pLightmap;
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+void Q3BSPFileParser::getEntities() {
+    const int size = m_pModel->m_Lumps[ kEntities ]->iSize;
+    m_pModel->m_EntityData.resize( size );
+    if ( size > 0 ) {
+        size_t Offset = m_pModel->m_Lumps[ kEntities ]->iOffset;
+        memcpy( &m_pModel->m_EntityData[ 0 ], &m_Data[ Offset ], sizeof( char ) * size );
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+
+} // Namespace Assimp
+
+#endif // ASSIMP_BUILD_NO_Q3BSP_IMPORTER
diff --git a/src/mesh/assimp-master/code/AssetLib/Q3BSP/Q3BSPFileParser.h b/src/mesh/assimp-master/code/AssetLib/Q3BSP/Q3BSPFileParser.h
new file mode 100644
index 0000000..15cc751
--- /dev/null
+++ b/src/mesh/assimp-master/code/AssetLib/Q3BSP/Q3BSPFileParser.h
@@ -0,0 +1,89 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+#ifndef ASSIMP_Q3BSPFILEPARSER_H_INC
+#define ASSIMP_Q3BSPFILEPARSER_H_INC
+
+#include <assimp/BaseImporter.h>
+#include <string>
+
+namespace Assimp
+{
+    class ZipArchiveIOSystem;
+
+namespace Q3BSP
+{
+    struct Q3BSPModel;
+    class ZipFile;
+}
+
+// -------------------------------------------------------------------
+///	@brief  This class implements th Q3DSP file parsing.
+// -------------------------------------------------------------------
+class Q3BSPFileParser {
+public:
+    Q3BSPFileParser( const std::string &rMapName, ZipArchiveIOSystem *pZipArchive );
+    ~Q3BSPFileParser();
+    Q3BSP::Q3BSPModel *getModel() const;
+
+protected:
+    bool readData(const std::string &rMapName);
+    bool parseFile();
+    bool validateFormat();
+    void getLumps();
+    void countLumps();
+    void getVertices();
+    void getIndices();
+    void getFaces();
+    void getTextures();
+    void getLightMaps();
+    void getEntities();
+
+private:
+    size_t m_sOffset;
+    std::vector<char> m_Data;
+    Q3BSP::Q3BSPModel *m_pModel;
+    ZipArchiveIOSystem *m_pZipArchive;
+};
+
+} // Namespace Assimp
+
+#endif // ASSIMP_Q3BSPFILEPARSER_H_INC