ClassiCube/ClassicalSharp/Map/Formats/MapFcm3.Importer.cs
2016-11-27 14:50:45 +11:00

59 lines
1.9 KiB
C#

// ClassicalSharp copyright 2014-2016 UnknownShadow200 | Licensed under MIT
// Part of fCraft | Copyright (c) 2009-2014 Matvei Stefarov <me@matvei.org> | BSD-3 | See LICENSE.txt
using System;
using System.IO;
using System.IO.Compression;
using System.Text;
using ClassicalSharp.Entities;
namespace ClassicalSharp.Map {
/// <summary> Imports a world from a FCMv3 map file (fCraft server map) </summary>
public sealed class MapFcm3Importer : IMapFormatImporter {
const uint Identifier = 0x0FC2AF40;
const byte Revision = 13;
public byte[] Load(Stream stream, Game game, out int width, out int height, out int length) {
BinaryReader r = new BinaryReader(stream);
if (r.ReadInt32() != Identifier || r.ReadByte() != Revision)
throw new InvalidDataException("Unexpected constant in .fcm file");
width = r.ReadInt16();
height = r.ReadInt16();
length = r.ReadInt16();
LocalPlayer p = game.LocalPlayer;
p.Spawn.X = r.ReadInt32() / 32f;
p.Spawn.Y = r.ReadInt32() / 32f;
p.Spawn.Z = r.ReadInt32() / 32f;
p.SpawnYaw = (float)Utils.PackedToDegrees(r.ReadByte());
p.SpawnPitch = (float)Utils.PackedToDegrees(r.ReadByte());
r.ReadUInt32(); // date modified
r.ReadUInt32(); // date created
game.World.Uuid = new Guid(r.ReadBytes(16));
r.ReadBytes(26); // layer index
int metaSize = r.ReadInt32();
using (DeflateStream ds = new DeflateStream(stream, CompressionMode.Decompress)) {
r = new BinaryReader(ds);
for (int i = 0; i < metaSize; i++) {
string group = ReadString(r);
string key = ReadString(r);
string value = ReadString(r);
}
byte[] blocks = new byte[width * height * length];
int read = ds.Read(blocks, 0, blocks.Length);
return blocks;
}
}
static string ReadString(BinaryReader reader) {
int length = reader.ReadUInt16();
byte[] data = reader.ReadBytes(length);
return Encoding.ASCII.GetString(data);
}
}
}