MeshGroup(MeshGroup mg)
{
offset = mg.offset; // +parent.mesh.offset;
this.Rotation = mg.Rotation;
this.scale = mg.scale;
//physics implementation
rotVelocity = mg.rotVelocity;
posVelocity = mg.posVelocity;
meshes = mg.meshes;
}
public bool Load(MeshGroup mesh, string fileName)
{
try
{
using (StreamReader streamReader = new StreamReader(fileName))
{
filepath = fileName.Substring(0, fileName.LastIndexOf("/") + 1);
Load(mesh, streamReader);
streamReader.Close();
return(true);
}
}
catch { return(false); }
}
void Load(MeshGroup meshgroup, TextReader textReader)
{
Mesh mesh = new Mesh(null, null, null, 0);
vertices = new List <Vector3>();
normals = new List <Vector3>();
texCoords = new List <Vector2>();
objVertices = new List <Mesh.ObjVertex>();
objTriangles = new List <Mesh.ObjTriangle>();
objQuads = new List <Mesh.ObjQuad>();
int firsto = 0;
string line;
while ((line = textReader.ReadLine()) != null)
{
line = line.Trim(splitCharacters);
line = line.Replace(" ", " ");
string[] parameters = line.Split(splitCharacters);
switch (parameters[0])
{
case "p": // point
break;
case "v": // vertex
float x = float.Parse(parameters[1]);
float y = float.Parse(parameters[2]);
float z = float.Parse(parameters[3]);
vertices.Add(new Vector3(x, y, z));
break;
case "vt": // texCoord
float u = float.Parse(parameters[1]);
float v = float.Parse(parameters[2]);
texCoords.Add(new Vector2(u, v));
break;
case "vn": // normal
float nx = float.Parse(parameters[1]);
float ny = float.Parse(parameters[2]);
float nz = float.Parse(parameters[3]);
normals.Add(new Vector3(nx, ny, nz));
break;
case "f":
switch (parameters.Length)
{
case 4:
Mesh.ObjTriangle objTriangle = new Mesh.ObjTriangle();
objTriangle.Index0 = ParseFaceParameter(parameters[1]);
objTriangle.Index1 = ParseFaceParameter(parameters[2]);
objTriangle.Index2 = ParseFaceParameter(parameters[3]);
objTriangles.Add(objTriangle);
break;
case 5:
Mesh.ObjQuad objQuad = new Mesh.ObjQuad();
objQuad.Index0 = ParseFaceParameter(parameters[1]);
objQuad.Index1 = ParseFaceParameter(parameters[2]);
objQuad.Index2 = ParseFaceParameter(parameters[3]);
objQuad.Index3 = ParseFaceParameter(parameters[4]);
break;
}
break;
case "mtllib":
string mtl = parameters[1];
for (int i = 2; i < parameters.Length; i++)
{
mtl += " " + parameters[i];
}
LoadMTLFile(mtl);
break;
case "usemtl":
string umtl = "";
for (int i = 1; i < parameters.Length; i++)
{
umtl += parameters[i];
}
if (ignoreMaterials)
{
uiCurMaterial = 1;
}
else
{
uiCurMaterial = Materials[umtl].id;
}
break;
case "o":
Console.WriteLine(parameters[1]);
if (firsto > 0)
{
mesh.vertices = objVertices.ToArray();
mesh.triangles = objTriangles.ToArray();
mesh.quads = objQuads.ToArray();
mesh.texture = uiCurMaterial;
meshgroup.AddMesh(mesh);
}
mesh = new Mesh(null, null, null, 0);
firsto++;
//vertices = new List<Vector3>();
//normals = new List<Vector3>();
//texCoords = new List<Vector2>();
objVertices = new List <Mesh.ObjVertex>();
objTriangles = new List <Mesh.ObjTriangle>();
objQuads = new List <Mesh.ObjQuad>();
break;
}
}
Console.WriteLine();
mesh.vertices = objVertices.ToArray();
mesh.triangles = objTriangles.ToArray();
mesh.quads = objQuads.ToArray();
mesh.texture = uiCurMaterial;
meshgroup.AddMesh(mesh);
vertices = null;
normals = null;
texCoords = null;
objVertices = null;
objTriangles = null;
objQuads = null;
}