public void ProcessFace(string line, Mesh mesh)
{
var tokens = line.Remove(0, 2).Split(' ');
Face face = new Face();
foreach (var token in tokens)
{
FaceItem item = new FaceItem();
string[] items = token.Split('/');
switch (items.Length)
{
case 1:
if (!string.IsNullOrWhiteSpace(items[0])) item.Vertex = uint.Parse(items[0], Style, Info);
break;
case 2:
if (!string.IsNullOrWhiteSpace(items[0])) item.Vertex = uint.Parse(items[0], Style, Info);
if (!string.IsNullOrWhiteSpace(items[1])) item.Texture = uint.Parse(items[1], Style, Info);
break;
case 3:
if (!string.IsNullOrWhiteSpace(items[0])) item.Vertex = uint.Parse(items[0], Style, Info);
if (!string.IsNullOrWhiteSpace(items[1])) item.Texture = uint.Parse(items[1], Style, Info);
if (!string.IsNullOrWhiteSpace(items[2])) item.Normal = uint.Parse(items[2], Style, Info);
break;
}
face.Items.Add(item);
}
mesh.SubMeshes.Last().Faces.Add(face);
}
public void ProcessVertex(string line, Mesh mesh)
{
if (!mesh.SubMeshes.Any())
mesh.SubMeshes.Add(new SubMesh());
var tokens = line.Split(' ');
if (tokens.Length != 4) return;
Vector3 vertex = new Vector3
{
X = float.Parse(tokens[1], Style, Info),
Y = float.Parse(tokens[2], Style, Info),
Z = float.Parse(tokens[3], Style, Info)
};
mesh.SubMeshes.Last().Vertices.Add(vertex);
// Bounds
if (vertex.X < mesh.MinVertex.X) mesh.MinVertex.X = vertex.X;
if (vertex.Y < mesh.MinVertex.Y) mesh.MinVertex.Y = vertex.Y;
if (vertex.Z < mesh.MinVertex.Z) mesh.MinVertex.Z = vertex.Z;
if (vertex.X > mesh.MaxVertex.X) mesh.MaxVertex.X = vertex.X;
if (vertex.Y > mesh.MaxVertex.Y) mesh.MaxVertex.Y = vertex.Y;
if (vertex.Z > mesh.MaxVertex.Z) mesh.MaxVertex.Z = vertex.Z;
}
public void ThrowsWhenProcessIdIsNotDefined()
{
string unknownProcessId = _fixture.Create<string>();
Mesh mesh = new Mesh();
ParsingService service = new ParsingService();
Assert.That(() => service.ProcessLine(unknownProcessId, mesh), Throws.InvalidOperationException);
}
public Mesh LoadMesh(string path)
{
var mesh = new Mesh();
IEnumerable<string> lines = _fileLoader.LoadFile(path);
foreach (string line in lines)
{
_parsingService.ProcessLine(line, mesh);
}
return mesh;
}
public void ReturnWhenLineIsEmpty(string line)
{
Mesh mesh = new Mesh();
ParsingService service = new ParsingService();
service.ProcessLine(line, mesh);
Mesh emptyMesh = new Mesh();
Assert.That(mesh.MinVertex, Is.EqualTo(emptyMesh.MinVertex));
Assert.That(mesh.MaxVertex, Is.EqualTo(emptyMesh.MaxVertex));
Assert.That(mesh.Filename, Is.Null);
Assert.That(mesh.SubMeshes, Is.Empty);
}
public void ProcessTextCoord(string line, Mesh mesh)
{
var tokens = line.Split(' ');
if (tokens.Length != 3) return;
Vector3 texture = new Vector3
{
X = float.Parse(tokens[1], Style, Info),
Y = float.Parse(tokens[2], Style, Info)
};
mesh.SubMeshes.Last().Textures.Add(texture);
}
public void ProcessNormal(string line, Mesh mesh)
{
var tokens = line.Split(' ');
if (tokens.Length != 4) return;
Vector3 normal = new Vector3
{
X = float.Parse(tokens[1], Style, Info),
Y = float.Parse(tokens[2], Style, Info),
Z = float.Parse(tokens[3], Style, Info)
};
mesh.SubMeshes.Last().Normals.Add(normal);
}
public void ProcessLine(string line, Mesh mesh)
{
// comment
if (string.IsNullOrWhiteSpace(line) || line.StartsWith("#")) return;
string action = line.Split(' ').FirstOrDefault();
if (action != null && ProcessDictionary.ContainsKey(action))
{
ProcessDictionary[action].Invoke(line, mesh);
}
else
{
throw new InvalidOperationException($"Cannot find a correct process for line {line}");
}
}
public void ProcessObject(string line, Mesh mesh)
{
mesh.SubMeshes.Add(new SubMesh());
}