/// <summary>
/// Export the model.
/// </summary>
/// <param name="model">Model to be exported.</param>
/// <param name="file">Output file.</param>
public static void ExportBinary(LXF model, string file)
{
// The output file is a slightly modified obj file to allow for lego materials
// and model structure so you know which parts are attached to each other.
using (BinaryWriter writer = new BinaryWriter(File.Create(file)))
{
// File name.
writer.Write(Path.GetFileName(file));
foreach (Brick brick in model.Bricks)
{
int i = 0;
// Make a group for each part.
foreach (GX part in brick.Models)
{
// Name of the group is the part number plus a subpart number.
writer.Write(brick.Name + "x" + i);
// Make bone for the piece, used to attach them.
writer.Write(short.Parse(brick.Bones[0]));
if (i == 0)
{
// If it's the main subpart then include a parent bone.
writer.Write(short.Parse(brick.Parent));
// If it's the main subpart then include transformation matrix.
for (int j = 0; j < 16; j++)
{
writer.Write(brick.Transformation[j]);
}
}
// Index of a Lego Material.
writer.Write(part.Material);
// Number of vertices and their coordinates.
writer.Write(part.Vertices.Length);
foreach (Vector3 v in part.Vertices)
{
writer.Write(v.X);
writer.Write(v.Y);
writer.Write(v.Z);
}
// Number of normals and their coordinates.
writer.Write(part.Normals.Length);
foreach (Vector3 v in part.Normals)
{
writer.Write(v.X);
writer.Write(v.Y);
writer.Write(v.Z);
}
// Number of vertex indices and their order for each face.
writer.Write(part.Indices.Length);
for (int j = 0; j < part.Indices.Length; j++)
{
writer.Write((short)part.Indices[j++]);
writer.Write((short)part.Indices[j++]);
writer.Write((short)part.Indices[j]);
}
i++;
}
}
}
}
/// <summary>
/// Console based exporter, you can give it one or more files via command line,
/// each file should be seperated by space.
/// </summary>
/// <param name="args">Command line arguments, here the files.</param>
static void Main(string[] args)
{
// If no files are given then don't do anything.
if (args.Length == 0)
{
Console.WriteLine("No file");
return;
}
// Extract each lxf file into obl file.
for (int i = 0; i < args.Length; i++)
{
if (!args[i].EndsWith(".lxf"))
{
continue;
}
LXF model = new LXF(args[i]);
OBLExporter.OBLExporter.ExportBinary(model, args[i].Replace(".lxf", ".obl"));
Console.WriteLine(args[i] + " done");
}
}
/// <summary>
/// Export the model.
/// </summary>
/// <param name="model">Model to be exported.</param>
/// <param name="file">Output file.</param>
public static void Export(LXF model, string file)
{
// The output file is a slightly modified obj file to allow for lego materials
// and model structure so you know which parts are attached to each other.
using (StreamWriter writer = new StreamWriter(file))
{
int a, b, c;
// File name.
writer.WriteLine("# " + Path.GetFileName(file));
foreach (Brick brick in model.Bricks)
{
int i = 0;
// Make a group for each part.
foreach (GX part in brick.Models)
{
writer.WriteLine();
// Name of the group is the part number plus a subpart number.
writer.WriteLine("g " + brick.Name + "x" + i);
writer.WriteLine();
// Make bone for the piece, used to attach them.
writer.WriteLine("b " + brick.Bones[0]);
writer.WriteLine();
if (i == 0)
{
// If it's the main subpart then include a parent bone.
writer.WriteLine("p " + brick.Parent);
writer.WriteLine();
// If it's the main subpart then include transformation matrix.
writer.Write("t");
for (int j = 0; j < 16; j++)
{
writer.Write(" " + brick.Transformation[j]);
}
writer.WriteLine();
writer.WriteLine();
}
// Index of a Lego Material.
writer.WriteLine("m " + part.Material);
writer.WriteLine();
// Number of vertices and their coordinates.
writer.WriteLine(part.Vertices.Length);
foreach (Vector3 v in part.Vertices)
{
writer.WriteLine("v " + v.X + " " + v.Y + " " + v.Z);
}
// Number of normals and their coordinates.
writer.WriteLine();
writer.WriteLine(part.Normals.Length);
foreach (Vector3 v in part.Normals)
{
writer.WriteLine("vn " + v.X + " " + v.Y + " " + v.Z);
}
// Number of vertex indices and their order for each face.
writer.WriteLine();
writer.WriteLine(part.Indices.Length);
for (int j = 0; j < part.Indices.Length; j++)
{
a = part.Indices[j++];
b = part.Indices[j++];
c = part.Indices[j];
writer.WriteLine("f " + a + " " + b + " " + c);
}
i++;
}
}
}
}
/// <summary>
/// Open Lego model.
/// </summary>
/// <param name="name"></param>
private void OpenFile(string name)
{
model = new LXF(name);
}
