public static MyComplexObjFactory LoadFile(string filename)
{
MyComplexObjFactory obj = new MyComplexObjFactory();
try
{
using (StreamReader reader = new StreamReader(new FileStream(filename, FileMode.Open, FileAccess.Read)))
{
obj = LoadFromString(reader.ReadToEnd());
}
}
catch (FileNotFoundException e)
{
Console.WriteLine("File not found: {0}", filename);
}
catch (Exception e)
{
Console.WriteLine("Error loading file: {0}", filename);
}
return obj;
}
public static MyComplexObjFactory LoadFromString(string content)
{
NumberStyles style = NumberStyles.Float;
CultureInfo culture = CultureInfo.CreateSpecificCulture("en-US");
// Seperate lines from the file
List<String> lines = new List<string>(content.Split('\n'));
List<Vector3> vertices = new List<Vector3>();
List<Vector2> textCoord = new List<Vector2>();
List<float> normals = new List<float>();
List<int> vertIndi = new List<int>();
List<int> normInd = new List<int>();
List<int> textInd = new List<int>();
foreach (String line in lines)
{
if (line.StartsWith("v ")) // Vertex definition
{
String temp = line.Substring(2);
String[] vertparts = temp.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
// Attempt to parse each part of the vertice
Vector3 v = new Vector3();
float.TryParse(vertparts[0], style, culture, out v.X);
float.TryParse(vertparts[1], style, culture, out v.Y);
float.TryParse(vertparts[2], style, culture, out v.Z);
vertices.Add(v);
//float.TryParse(vertparts[0], style, culture, out vec.X);
//float.TryParse(vertparts[1], style, culture, out vec.Y);
//float.TryParse(vertparts[2], style, culture, out vec.Z);
}
if (line.StartsWith("vn ")) // Vertex definition
{
String temp = line.Substring(2);
String[] vertparts = temp.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
// Attempt to parse each part of the vertice
for (int i = 0; i < 3; i++)
{
float el;
float.TryParse(vertparts[i], style, culture, out el);
normals.Add(el);
}
}
if (line.StartsWith("vt ")) // Vertex definition
{
String temp = line.Substring(2);
String[] vertparts = temp.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
// Attempt to parse each part of the vertice
Vector2 t = new Vector2();
float.TryParse(vertparts[0], style, culture, out t.X);
float.TryParse(vertparts[1], style, culture, out t.Y);
// t.Y = 1 - t.Y;
textCoord.Add(t);
}
if (line.StartsWith("f ")) // Vertex definition
{
String temp = line.Substring(2);
String[] vertparts = temp.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
int i = 0;
foreach (var l in vertparts)
{
if (i > 2)
break;
bool success;
int el;
string[] elems = l.Split('/');
if (!(success = int.TryParse(elems[0], out el)))
break;
vertIndi.Add(int.Parse(elems[0])-1);
textInd.Add(int.Parse(elems[1])-1);
normInd.Add(int.Parse(elems[2])-1);
i++;
}
// Attempt to parse each part of the vertice
}
}
MyComplexObjFactory obj = new MyComplexObjFactory();
obj.vertices = CompliteVert(vertices, vertIndi);
obj.vertInd = Enumerable.Range(0, obj.vertices.Length).ToArray();
obj.textureCoordinates = CompliteTextCoord(textCoord,textInd);
return obj;
}
