Пример #1
0
        public Planet(IPlanetData terrain, int seed)
        {
            Terrain = terrain;
            Biomes  = Terrain.BiomeList;
            Seed    = seed;

            var PRNG = new System.Random(seed);

            int icosphereLevel = 7;

            if (Tiles == null)
            {
                string cachepath = Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location) + "/tiles.dat";

                try
                {
                    using (var stream = new FileStream(cachepath, FileMode.Open, FileAccess.Read, FileShare.Read))
                    {
                        var reader = new BinaryReader(stream);

                        var version = reader.ReadString();
                        if (version != System.Reflection.Assembly.GetExecutingAssembly().GetName().Version.ToString())
                        {
                            throw new Exception(string.Format("Wrong version in cache file: found {0}, expected {1}", version, System.Reflection.Assembly.GetExecutingAssembly().GetName().Version));
                        }

                        int level = reader.ReadInt32();
                        if (level != icosphereLevel)
                        {
                            throw new Exception(string.Format("Wrong tessellation level in cache file: found {0}, expected {1}", level, icosphereLevel));
                        }

                        int n = reader.ReadInt32();
                        Tiles = new TileGeometry[n];
                        for (int i = 0; i < n; i++)
                        {
                            Tiles[i] = new TileGeometry(reader);
                        }
                    }
                }
                catch (Exception e)
                {
                    Log("Cannot open geometry from cache: {0}", e.Message);

                    var sphere = new Icosphere(icosphereLevel);
                    Tiles = sphere.GetDual();

                    try
                    {
                        using (var stream = new FileStream(cachepath, FileMode.Create, FileAccess.Write))
                        {
                            var writer = new BinaryWriter(stream);
                            writer.Write(System.Reflection.Assembly.GetExecutingAssembly().GetName().Version.ToString());
                            writer.Write(icosphereLevel);
                            writer.Write(Tiles.Length);
                            for (int i = 0; i < Tiles.Length; i++)
                            {
                                Tiles[i].Write(writer);
                            }
                        }
                    }
                    catch (Exception e2)
                    {
                        Log("Cannot write geometry to cache: {0}", e2.Message);
                    }
                }
            }

            TileSeeds = new int[Tiles.Length];
            for (int i = 0; i < Tiles.Length; i++)
            {
                TileSeeds[i] = PRNG.Next();
            }

            data = new LRUCache <TileData>(idx => new TileData(this, idx), 200);
        }
Пример #2
0
        public Planet(IPlanetData terrain, int seed)
        {
            Terrain = terrain;
            Biomes = Terrain.BiomeList;
            Seed = seed;

            var PRNG = new System.Random(seed);

            int icosphereLevel = 7;

            if (Tiles == null)
            {
                string cachepath = Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location) + "/tiles.dat";

                try
                {
                    using (var stream = new FileStream(cachepath, FileMode.Open, FileAccess.Read, FileShare.Read))
                    {
                        var reader = new BinaryReader(stream);

                        var version = reader.ReadString();
                        if (version != System.Reflection.Assembly.GetExecutingAssembly().GetName().Version.ToString())
                        {
                            throw new Exception(string.Format("Wrong version in cache file: found {0}, expected {1}", version, System.Reflection.Assembly.GetExecutingAssembly().GetName().Version));
                        }

                        int level = reader.ReadInt32();
                        if (level != icosphereLevel)
                        {
                            throw new Exception(string.Format("Wrong tessellation level in cache file: found {0}, expected {1}", level, icosphereLevel));
                        }

                        int n = reader.ReadInt32();
                        Tiles = new TileGeometry[n];
                        for (int i = 0; i < n; i++)
                        {
                            Tiles[i] = new TileGeometry(reader);
                        }
                    }
                }
                catch (Exception e)
                {
                    Log("Cannot open geometry from cache: {0}", e.Message);

                    var sphere = new Icosphere(icosphereLevel);
                    Tiles = sphere.GetDual();

                    try
                    {
                        using(var stream = new FileStream(cachepath, FileMode.Create, FileAccess.Write))
                        {
                            var writer = new BinaryWriter(stream);
                            writer.Write(System.Reflection.Assembly.GetExecutingAssembly().GetName().Version.ToString());
                            writer.Write(icosphereLevel);
                            writer.Write(Tiles.Length);
                            for(int i = 0; i < Tiles.Length; i++)
                            {
                                Tiles[i].Write(writer);
                            }
                        }
                    }
                    catch(Exception e2)
                    {
                        Log("Cannot write geometry to cache: {0}", e2.Message);
                    }
                }
            }

            TileSeeds = new int[Tiles.Length];
            for (int i = 0; i < Tiles.Length; i++)
            {
                TileSeeds[i] = PRNG.Next();
            }

            data = new LRUCache<TileData>(idx => new TileData(this, idx), 200);
        }