Bool ApplinkImporter::parseObjFile(char* path)
{
char line[256];
vector<string> stringArray;
vector<string> subArray;
ifstream fsImportObj;
fsImportObj.open(path);
if(!fsImportObj.is_open()){GePrint("File " + String(path) + " not found!");return false;}
GePrint("Open file: " + String(path) + ".");
long faceIndex = 0;
int groupIndex = -1; // First group at 0
long pointIndex = 0;
long texCoordIndex = 0;
String matName;
long idxMat = -1;
StatusSetText("Parse file...");
while(!fsImportObj.eof())
{
fsImportObj.getline(line, 255);
//GePrint("row: " + String(buffer));
if(!strncmp("mtllib ", line, 7))
{
char file[256];
sscanf(line, "mtllib %s", file);
this->mtlFilePath = path;
this->mtlFilePath.ClearSuffix();
this->mtlFilePath.SetFile(file);
}
else if(!strncmp("usemtl ", line, 7))
{
String newMat;
stringArray.clear();
istringstream iss(line);
copy(istream_iterator<string>(iss), istream_iterator<string>(), back_inserter<vector<string> >(stringArray));
newMat = stringArray[1].c_str();
bool inMats = false;
for(unsigned int i = 0; i < this->matArray.size(); i++)
{
if(this->matArray[i].Name == newMat)
{
inMats = true;
idxMat = i;
break;
}
}
if(!inMats)
{
this->matArray.resize(this->matArray.size() + 1);
this->matArray[this->matArray.size() - 1].Name = newMat;
idxMat = (long)this->matArray.size() - 1;
}
}
else if(!strncmp("g ", line, 2))
{
groupIndex++;
faceIndex = 0;
sscanf(line, "g %s", &groups[groupIndex].groupName);
}
else if(!strncmp("v ", line, 2))
{
sscanf(line, "v %lf %lf %lf", &(verticies[pointIndex].x), &(verticies[pointIndex].y), &(verticies[pointIndex].z));
pointIndex++;
}
else if(!strncmp("vt", line, 2))
{
sscanf(line, "vt %lf %lf", &(this->uvw[texCoordIndex].x), &(this->uvw[texCoordIndex].y));
sscanf(line, "vt %lf %lf %lf", &(this->uvw[texCoordIndex].x), &(this->uvw[texCoordIndex].y), &(this->uvw[texCoordIndex].z));
this->uvw[texCoordIndex].y = 1 - this->uvw[texCoordIndex].y;
texCoordIndex++;
}
else if(!strncmp("f ", line, 2))
{
if(idxMat != -1)
{
groups[groupIndex].polyMatIdx[faceIndex] = idxMat;
}
//GePrint("size: " + LongToString(sizeof(line)));
stringArray.clear();
istringstream iss(line);
copy(istream_iterator<string>(iss), istream_iterator<string>(), back_inserter<vector<string> >(stringArray));
//GePrint("size: " + LongToString(stringArray.size()));
subArray.clear();
int numFaces = (int)(stringArray.size() -1);
if(numFaces == 3 || numFaces == 4)
{
for(UInt32 i = 1; i <= numFaces; i++)
{
subArray = this->Split(stringArray[i], '/');
for(UInt32 j=0; j < subArray.size(); j++)
{
string vIdx = subArray[j];
if(j==0)//position
{
groups[groupIndex].faces[faceIndex].vp[i-1] = atol(vIdx.c_str()) -1;
}
else if(j ==1 && vIdx != "")//tex coord
{
groups[groupIndex].faces[faceIndex].vt[i-1] = atol(vIdx.c_str()) - 1;
}
//Normals is not persent in this plugin.
}
}
if(numFaces == 3)// this triangle, non quad.
{
groups[groupIndex].faces[faceIndex].vp[3] = atol(subArray[0].c_str()) - 1;
if(subArray.size() > 1 && subArray[1] != "")
{
groups[groupIndex].faces[faceIndex].vt[3] = atol(subArray[1].c_str()) - 1;
}
}
faceIndex++;
}
else// N-Gons
{
Triangulator* t = createTriangulator();
vector<UInt32> vpIdxs;
vector<UInt32> vtIdxs;
for(UInt32 j=1; j <= numFaces; j++)
{
subArray = this->Split(stringArray[j], '/');
UInt32 idx = atol(subArray[0].c_str()) -1;
vpIdxs.push_back(idx);
if(subArray[1] != "")
{
vtIdxs.push_back(atol(subArray[1].c_str()) -1);
}
t->addPoint(verticies[idx].x, verticies[idx].y, verticies[idx].z);
}
unsigned int tcount;
unsigned int *indices = t->triangulate(tcount);
for(UInt32 f = 0; f < tcount; f++)
{
for(UInt32 v=0; v < 4; v++)
{
UInt32 vv = 2-v;
if(v == 3) vv = 0;
groups[groupIndex].faces[faceIndex].vp[v] = vpIdxs[indices[f*3+vv]];//vp
if(vpIdxs.size() > 0)//vt
{
groups[groupIndex].faces[faceIndex].vt[v] = vtIdxs[indices[f*3+vv]];
}
}
faceIndex++;
//GePrint("Face3: " + LongToString(groups[groupIndex].faces[faceIndex].vp[0]) + ", " + LongToString(groups[groupIndex].faces[faceIndex].vp[1]) + ", " + LongToString(groups[groupIndex].faces[faceIndex].vp[2]));
}
releaseTriangulator(t);
}
}
}
fsImportObj.close();
return true;
}
