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@@ -1,19 +1,7 @@
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#include "Header.h"
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#include "ModelLoader.h"
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-#define STB_IMAGE_IMPLEMENTATION
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-#include "stb_image.h"
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-
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-ModelLoader::ModelLoader()
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-{
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-}
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-
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-
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-ModelLoader::~ModelLoader()
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-{
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-}
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-
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-std::string replace(std::string str, std::string toReplace, std::string replacement)
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+string replace(string str, string toReplace, string replacement)
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{
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size_t index = 0;
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while (true)
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@@ -27,7 +15,7 @@ std::string replace(std::string str, std::string toReplace, std::string replacem
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return str;
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}
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-std::vector<std::string> split(std::string str, std::string sep)
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+vector<string> split(string str, string sep)
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{
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std::vector<std::string> ret;
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size_t index;
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@@ -41,293 +29,4 @@ std::vector<std::string> split(std::string str, std::string sep)
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}
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ret.push_back(str);
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return ret;
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-}
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-
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-inline std::string toLower(std::string data)
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-{
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- std::transform(data.begin(), data.end(), data.begin(), ::tolower);
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- return data;
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-}
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-
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-
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-
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-
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-ObjModel::ObjModel(std::string fileName)
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-{
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- std::string dirName = fileName;
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- if (dirName.rfind("/") != std::string::npos)
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- dirName = dirName.substr(0, dirName.rfind("/"));
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- if (dirName.rfind("\\") != std::string::npos)
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- dirName = dirName.substr(0, dirName.rfind("\\"));
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- if (fileName == dirName)
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- dirName = "";
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-
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-
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- std::ifstream pFile(fileName.c_str());
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-
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- if (!pFile.is_open())
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- {
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- std::cout << "Could not open file " << fileName << std::endl;
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- return;
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- }
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-
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-
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- ObjGroup* currentGroup = new ObjGroup();
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- currentGroup->materialIndex = -1;
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-
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-
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- while (!pFile.eof())
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- {
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- std::string line;
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- std::getline(pFile, line);
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-
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- line = replace(line, "\t", " ");
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- while (line.find(" ") != std::string::npos)
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- line = replace(line, " ", " ");
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- if (line == "")
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- continue;
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- if (line[0] == ' ')
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- line = line.substr(1);
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- if (line == "")
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- continue;
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- if (line[line.length() - 1] == ' ')
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- line = line.substr(0, line.length() - 1);
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- if (line == "")
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- continue;
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- if (line[0] == '#')
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- continue;
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-
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- std::vector<std::string> params = split(line, " ");
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- params[0] = toLower(params[0]);
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-
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- if (params[0] == "v")
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- vertices.push_back(Vec3f((float)atof(params[1].c_str()), (float)atof(params[2].c_str()), (float)atof(params[3].c_str())));
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- else if (params[0] == "vn")
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- normals.push_back(Vec3f((float)atof(params[1].c_str()), (float)atof(params[2].c_str()), (float)atof(params[3].c_str())));
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- else if (params[0] == "vt")
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- texcoords.push_back(Vec2f((float)atof(params[1].c_str()), (float)atof(params[2].c_str())));
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- else if (params[0] == "f")
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- {
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- for (size_t ii = 4; ii <= params.size(); ii++)
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- {
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- Face face;
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-
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- for (size_t i = ii - 3; i < ii; i++) //magische forlus om van quads triangles te maken ;)
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- {
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- Vertex vertex;
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- std::vector<std::string> indices = split(params[i == (ii - 3) ? 1 : i], "/");
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- if (indices.size() >= 1) //er is een positie
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- vertex.position = atoi(indices[0].c_str()) - 1;
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- if (indices.size() == 2) //alleen texture
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- vertex.texcoord = atoi(indices[1].c_str()) - 1;
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- if (indices.size() == 3) //v/t/n of v//n
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- {
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- if (indices[1] != "")
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- vertex.texcoord = atoi(indices[1].c_str()) - 1;
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- vertex.normal = atoi(indices[2].c_str()) - 1;
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- }
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- face.vertices.push_back(vertex);
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- }
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- currentGroup->faces.push_back(face);
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- }
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- }
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- else if (params[0] == "s")
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- {//smoothing
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- }
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- else if (params[0] == "mtllib")
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- {
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- loadMaterialFile(dirName + "/" + params[1], dirName);
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- }
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- else if (params[0] == "usemtl")
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- {
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- if (currentGroup->faces.size() != 0)
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- groups.push_back(currentGroup);
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- currentGroup = new ObjGroup();
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- currentGroup->materialIndex = -1;
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-
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- for (size_t i = 0; i < materials.size(); i++)
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- {
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- MaterialInfo* info = materials[i];
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- if (info->name == params[1])
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- {
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- currentGroup->materialIndex = i;
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- break;
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- }
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- }
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- if (currentGroup->materialIndex == -1)
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- std::cout << "Could not find material name " << params[1] << std::endl;
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- }
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- }
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- groups.push_back(currentGroup);
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-}
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-
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-
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-ObjModel::~ObjModel(void)
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-{
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-}
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-
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-
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-
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-
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-void ObjModel::draw()
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-{
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- for (auto &g : groups)
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- {
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- if (materials[g->materialIndex]->hasTexture)
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- {
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- glEnable(GL_TEXTURE_2D);
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- materials[g->materialIndex]->texture->bind();
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- }
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-
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- glBegin(GL_TRIANGLES);
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- for (auto &f : g->faces)
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- {
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- for (auto &v : f.vertices)
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- {
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- glNormal3f(normals[v.normal].x, normals[v.normal].y, normals[v.normal].z);
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- glTexCoord2f(texcoords[v.texcoord].x, texcoords[v.texcoord].y);
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- glVertex3f(vertices[v.position].x, vertices[v.position].y, vertices[v.position].z);
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- }
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- }
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- glEnd();
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- }
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-}
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-
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-void ObjModel::loadMaterialFile(std::string fileName, std::string dirName)
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-{
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- std::ifstream pFile(fileName.c_str());
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- if (!pFile.is_open())
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- {
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- std::cout << "Could not open file " << fileName << std::endl;
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- return;
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- }
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-
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- MaterialInfo* currentMaterial = NULL;
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-
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- while (!pFile.eof())
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- {
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- std::string line;
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- std::getline(pFile, line);
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-
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- line = replace(line, "\t", " ");
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- while (line.find(" ") != std::string::npos)
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- line = replace(line, " ", " ");
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- if (line == "")
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- continue;
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- if (line[0] == ' ')
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- line = line.substr(1);
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- if (line == "")
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- continue;
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- if (line[line.length() - 1] == ' ')
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- line = line.substr(0, line.length() - 1);
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- if (line == "")
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- continue;
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- if (line[0] == '#')
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- continue;
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-
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- std::vector<std::string> params = split(line, " ");
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- params[0] = toLower(params[0]);
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-
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- if (params[0] == "newmtl")
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- {
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- if (currentMaterial != NULL)
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- {
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- materials.push_back(currentMaterial);
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- }
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- currentMaterial = new MaterialInfo();
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- currentMaterial->name = params[1];
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- }
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- else if (params[0] == "map_kd")
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- {
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- currentMaterial->hasTexture = true;
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- currentMaterial->texture = new Texture(dirName + "/" + params[1]);
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- }
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- else
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- std::cout << "Didn't parse " << params[0] << " in material file" << std::endl;
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- }
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- if (currentMaterial != NULL)
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- materials.push_back(currentMaterial);
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-
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-}
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-
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-ObjModel::MaterialInfo::MaterialInfo()
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-{
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- Texture *texture;
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- hasTexture = false;
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-}
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-
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-
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-Vec3f::Vec3f(float x, float y, float z)
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-{
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- this->x = x;
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- this->y = y;
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- this->z = z;
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-}
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-Vec3f::Vec3f()
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-{
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- this->x = 0;
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- this->y = 0;
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- this->z = 0;
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-}
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-Vec3f::Vec3f(Vec3f &other)
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-{
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- this->x = other.x;
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- this->y = other.y;
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- this->z = other.z;
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-}
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-
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-float& Vec3f::operator [](int index)
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-{
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- return v[index];
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-}
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-
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-
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-
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-Vec2f::Vec2f(float x, float y)
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-{
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- this->x = x;
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- this->y = y;
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-}
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-Vec2f::Vec2f()
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-{
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- this->x = 0;
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- this->y = 0;
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-}
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-Vec2f::Vec2f(Vec2f &other)
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-{
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- this->x = other.x;
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- this->y = other.y;
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-}
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-
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-float& Vec2f::operator [](int index)
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-{
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- return v[index];
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-}
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-
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-ObjModel::Texture::Texture(const std::string & fileName)
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-{
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- int width, height, bpp;
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- stbi_set_flip_vertically_on_load(true);
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- unsigned char* imgData = stbi_load(fileName.c_str(), &width, &height, &bpp, 4);
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-
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- glGenTextures(1, &index);
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- glBindTexture(GL_TEXTURE_2D, index);
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-
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- glTexImage2D(GL_TEXTURE_2D,
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- 0, //level
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- GL_RGBA, //internal format
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- width, //width
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- height, //height
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- 0, //border
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- GL_RGBA, //data format
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- GL_UNSIGNED_BYTE, //data type
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- imgData); //data
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- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
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- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
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- stbi_image_free(imgData);
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-}
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-
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-void ObjModel::Texture::bind()
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-{
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- glBindTexture(GL_TEXTURE_2D, index);
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}
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