public static void WriteFile(string fileLocation, InstantGameworksObject objectData)
{
Stream _fileStream = new FileStream(fileLocation, FileMode.Create, FileAccess.Write, FileShare.None);
BinaryWriter _binaryWriter = new BinaryWriter(_fileStream);
_binaryWriter.Write('P'); //indicate beginning of positions array
_binaryWriter.Write(objectData.Positions.Length);
foreach (Position position in objectData.Positions)
{
_binaryWriter.Write(position.X);
_binaryWriter.Write(position.Y);
_binaryWriter.Write(position.Z);
}
_binaryWriter.Write('T'); //indicate beginning of texture coordinates array
_binaryWriter.Write(objectData.TextureCoordinates.Length);
foreach (TextureCoordinates textCoord in objectData.TextureCoordinates)
{
_binaryWriter.Write(textCoord.U);
_binaryWriter.Write(textCoord.V);
_binaryWriter.Write(textCoord.W);
}
_binaryWriter.Write('N'); //indicate beginning of normals array
_binaryWriter.Write(objectData.Normals.Length);
foreach (Position normal in objectData.Normals)
{
_binaryWriter.Write(normal.X);
_binaryWriter.Write(normal.Y);
_binaryWriter.Write(normal.Z);
}
_binaryWriter.Write('F'); //indicate beginning of normals array
_binaryWriter.Write(objectData.Faces.Length);
foreach (Face face in objectData.Faces)
{
foreach (Vertex vertex in face.Vertices)
{
_binaryWriter.Write(vertex.PositionIndex);
_binaryWriter.Write(vertex.TextureCoordinatesIndex);
_binaryWriter.Write(vertex.NormalIndex);
}
}
_binaryWriter.Close();
_fileStream.Close();
}
public static InstantGameworksObject ConvertOBJToIGWO(string[] OBJContent)
{
InstantGameworksObject _newObject = new InstantGameworksObject();
List <Position> _vertexPositions = new List <Position>();
List <TextureCoordinates> _vertexTextureCoordinates = new List <TextureCoordinates>();
List <Position> _vertexNormals = new List <Position>();
List <Face> _faces = new List <Face>();
// Parse data
foreach (string line in OBJContent)
{
string[] splitLine = line.Split(' ');
if (line.StartsWith("v "))
{
float x = float.Parse(splitLine[1]);
float y = float.Parse(splitLine[2]);
float z = float.Parse(splitLine[3]);
_vertexPositions.Add(new Position(x, y, z));
}
if (line.StartsWith("vn "))
{
float x = float.Parse(splitLine[1]);
float y = float.Parse(splitLine[2]);
float z = float.Parse(splitLine[3]);
_vertexNormals.Add(new Position(x, y, z));
}
if (line.StartsWith("vt "))
{
float u = float.Parse(splitLine[1]);
float v = float.Parse(splitLine[2]);
float w = 0;
if (splitLine.Length > 3) //bigger than 'vt u w'
{
w = float.Parse(splitLine[3]);
}
_vertexNormals.Add(new Position(u, v, w));
}
if (line.StartsWith("f "))
{
Face thisFace = new Face();
Vertex[] theseVertices = new Vertex[3];
for (int i = 1; i < 4; i++) // 1st through 3rd index
{
string[] thisVertexData = splitLine[i].Split('/'); // '5//1' becomes { '5', '', '1' }
Vertex thisVertex = new Vertex();
thisVertex.PositionIndex = int.Parse(thisVertexData[0]);
int textCoordIndex;
if (int.TryParse(thisVertexData[1], out textCoordIndex))
{
thisVertex.TextureCoordinatesIndex = textCoordIndex;
}
else
{
thisVertex.TextureCoordinatesIndex = -1;
};
int normIndex;
if (int.TryParse(thisVertexData[2], out normIndex))
{
thisVertex.NormalIndex = normIndex;
}
else
{
thisVertex.NormalIndex = -1;
};
theseVertices[i - 1] = thisVertex;
}
thisFace.Vertices = theseVertices;
_faces.Add(thisFace);
}
}
_newObject.Positions = _vertexPositions.ToArray();
_newObject.TextureCoordinates = _vertexTextureCoordinates.ToArray();
_newObject.Normals = _vertexNormals.ToArray();
_newObject.Faces = _faces.ToArray();
return(_newObject);
}
public static InstantGameworksObject ReadFile(string fileLocation)
{
InstantGameworksObject objectData = new InstantGameworksObject();
Stream _fileStream = new FileStream(fileLocation, FileMode.Open, FileAccess.Read, FileShare.Read);
BinaryReader _binaryReader = new BinaryReader(_fileStream);
List <Position> positionData = new List <Position>();
List <TextureCoordinates> textureData = new List <TextureCoordinates>();
List <Position> normalData = new List <Position>();
List <Face> faceData = new List <Face>();
int arrayLength;
_binaryReader.ReadChar(); //'P' for position
arrayLength = _binaryReader.ReadInt32();
for (int i = 0; i < arrayLength; i++)
{
Position newPos = new Position();
newPos.X = _binaryReader.ReadSingle();
newPos.Y = _binaryReader.ReadSingle();
newPos.Z = _binaryReader.ReadSingle();
positionData.Add(newPos);
}
_binaryReader.ReadChar(); //'T' for texture coordinates
arrayLength = _binaryReader.ReadInt32();
for (int i = 0; i < arrayLength; i++)
{
TextureCoordinates newUVW = new TextureCoordinates();
newUVW.U = _binaryReader.ReadSingle();
newUVW.V = _binaryReader.ReadSingle();
newUVW.W = _binaryReader.ReadSingle();
textureData.Add(newUVW);
}
_binaryReader.ReadChar(); //'N' for normals
arrayLength = _binaryReader.ReadInt32();
for (int i = 0; i < arrayLength; i++)
{
Position newPos = new Position();
newPos.X = _binaryReader.ReadSingle();
newPos.Y = _binaryReader.ReadSingle();
newPos.Z = _binaryReader.ReadSingle();
normalData.Add(newPos);
}
_binaryReader.ReadChar(); //'F' for face
arrayLength = _binaryReader.ReadInt32();
for (int i = 0; i < arrayLength; i++)
{
Face newFace = new Face();
newFace.Vertices = new Vertex[3];
for (int x = 0; x < 3; x++) //for each vertex
{
Vertex newVertex = new Vertex();
newVertex.PositionIndex = _binaryReader.ReadInt32();
newVertex.TextureCoordinatesIndex = _binaryReader.ReadInt32();
newVertex.NormalIndex = _binaryReader.ReadInt32();
newFace.Vertices[x] = newVertex;
}
faceData.Add(newFace);
}
objectData.Positions = positionData.ToArray();
objectData.TextureCoordinates = textureData.ToArray();
objectData.Normals = normalData.ToArray();
objectData.Faces = faceData.ToArray();
_binaryReader.Close();
_fileStream.Close();
return(objectData);
}
