public void WriteToObj(LeagueMap map, Stream outputStream, VertexType type)
{
using (StreamWriter writer = new StreamWriter(outputStream)) {
// Write out some meta data as comments
writer.WriteLine(@"// This file was auto generated from a League of Legends .nvr file by liblolmap, which is part of The Dargon Project");
writer.WriteLine();
var vertexOffsets = 0;
foreach (var mesh in map.meshes)
{
var meshData = type == VertexType.COMPLEX ? mesh.complexMesh : mesh.simpleMesh;
var vertexBuffer = map.vertexBuffers[meshData.vertexBufferIndex];
for (var i = meshData.vertexBufferOffset; i < meshData.vertexBufferOffset + meshData.vertexCount; ++i)
{
if (type == VertexType.COMPLEX)
{
writer.WriteComplexVertex((ComplexVertex)vertexBuffer[i]);
}
else
{
writer.WriteSimpleVertex((SimpleVertex)vertexBuffer[i]);
}
}
var indexBuffer = map.indexBuffers[meshData.indexBufferIndex];
var vertexOffset = meshData.vertexBufferOffset;
for (var i = meshData.indexBufferOffset; i < meshData.indexBufferOffset + meshData.indexCount; i += 3)
{
var index1 = indexBuffer[i] - vertexOffset + vertexOffsets + 1;
var index2 = indexBuffer[i + 1] - vertexOffset + vertexOffsets + 1;
var index3 = indexBuffer[i + 2] - vertexOffset + vertexOffsets + 1;
writer.WriteLine("f " + index1 + "/" + index1 + "/" + index1 +
" " + index2 + "/" + index2 + "/" + index2 +
" " + index3 + "/" + index3 + "/" + index3);
}
vertexOffsets += meshData.vertexCount;
}
}
}
public LeagueMap LoadFromNVR(IFileSystem system, IFileSystemHandle mapFolderHandle)
{
// Find the .nvr file
IFileSystemHandle nvrFileHandle;
if (system.AllocateRelativeHandleFromPath(mapFolderHandle, @"Scene/room.nvr", out nvrFileHandle) != IoResult.Success)
{
throw new FileNotFoundException();
}
// Read the file and put it into a stream for easy processing
byte[] nvrFileRawData;
if (system.ReadAllBytes(nvrFileHandle, out nvrFileRawData) != IoResult.Success)
{
throw new FileLoadException();
}
using (var ms = new MemoryStream(nvrFileRawData)) {
using (var reader = new BinaryReader(ms)) {
var leagueMap = new LeagueMap();
// Check magic
var magic = reader.ReadBytes(4);
if (!magic.SequenceEqual(fileMagic))
{
throw new Exception("NVR file magic number is not correct");
}
// Read meta data
leagueMap.majorVersion = reader.ReadUInt16();
leagueMap.minorVersion = reader.ReadUInt16();
var materialCount = reader.ReadInt32();
var vertexBufferCount = reader.ReadInt32();
var indexBufferCount = reader.ReadInt32();
var meshCount = reader.ReadInt32();
var aabbCount = reader.ReadInt32();
// Read materials
leagueMap.materials = Util.Generate(materialCount, i => reader.ReadMaterial());
// Read vertex buffers raw data
var vertexBuffers = Util.Generate(vertexBufferCount, i => reader.ReadVertexBufferRawData());
// Read index buffers
leagueMap.indexBuffers = Util.Generate(indexBufferCount, i => reader.ReadIndexBuffer());
// Read meshes
leagueMap.meshes = Util.Generate(meshCount, i => reader.ReadMesh());
// Classify the vertex buffers
var vertexBufferTypes = new VertexType[vertexBufferCount];
foreach (var mesh in leagueMap.meshes)
{
vertexBufferTypes[mesh.simpleMesh.vertexBufferIndex] = VertexType.SIMPLE;
vertexBufferTypes[mesh.complexMesh.vertexBufferIndex] = VertexType.COMPLEX;
}
// Parse the vertexBuffers
leagueMap.vertexBuffers = Util.Generate(vertexBufferCount, i => ReadVertexBuffer(vertexBuffers[i], vertexBufferTypes[i]));
// Read AABB data
leagueMap.AABBs = new AABB[aabbCount];
for (var i = 0; i < aabbCount; ++i)
{
leagueMap.AABBs[i] = reader.ReadAABB();
var unknown1 = reader.ReadSingle();
var unknown2 = reader.ReadSingle();
var unknown3 = reader.ReadSingle();
}
return(leagueMap);
}
}
}