public NoiseGenerator(int seed, float frequency)
{
_hash1 = new XXHash(seed);
_hash2 = new XXHash(seed ^ 0x1327495a);
_hash3 = new XXHash(seed ^ 0x3cbe84f2);
_frequency = frequency;
}
public void Execute([ReadOnly] ref Voxel voxel, ref Translation position, ref Scale scale)
{
// Per-instance random number
var hash = new XXHash(voxel.ID);
var rand1 = hash.Value01(1);
var rand2 = hash.Value01(2);
// Extract the current position/scale.
var _pos = position.Value;
var _scale = scale.Value;
// Move/Shrink.
_pos += new float3(0.1f, -2.0f, 0.3f) * (rand2 + 0.1f) * dt;
_scale *= math.lerp(0.9f, 0.98f, rand1);
//Build a new position and scale
position = new Translation {
Value = _pos
};
scale = new Scale {
Value = _scale
};
// Build a new matrix.
//matrix = new TransformMatrix {
// Value = new float4x4(
// new float4(scale, 0, 0, 0),
// new float4(0, scale, 0, 0),
// new float4(0, 0, scale, 0),
// new float4(pos.x, pos.y, pos.z, 1)
// )
//};
}
public SourceCodeFile(string fileName, string sourceCode)
{
FileName = fileName;
SourceCode = null;
SourceCode = sourceCode;
HashCode = XXHash.XXH32(Encoding.UTF8.GetBytes(SourceCode));
}
/// <summary>
/// A representative hash code.
/// </summary>
/// <returns>A number that is guaranteed to be the same when generated from two objects that are the same.</returns>
public override int GetHashCode()
{
int hash = 0;
int flags = 0;
flags |= (receiveShadows ? 1 : 0) << 0;
flags |= (needMotionVectorPass ? 1 : 0) << 1;
unsafe
{
var buffer = stackalloc[]
{
ReferenceEquals(mesh, null) ? 0 : mesh.GetHashCode(),
ReferenceEquals(material, null) ? 0 : material.GetHashCode(),
subMesh.GetHashCode(),
layer.GetHashCode(),
castShadows.GetHashCode(),
flags
};
hash = (int)XXHash.Hash32((byte *)buffer, 6 * 4);
}
return(hash);
}
internal void GenerateGlobalObjectIdHash()
{
// HEAD: DO NOT USE! TEST ONLY TEMP IMPL, WILL BE REMOVED
if (TempGlobalObjectIdHashOverride != 0)
{
GlobalObjectIdHash = TempGlobalObjectIdHashOverride;
return;
}
// TAIL: DO NOT USE! TEST ONLY TEMP IMPL, WILL BE REMOVED
// do NOT regenerate GlobalObjectIdHash for NetworkPrefabs while Editor is in PlayMode
if (UnityEditor.EditorApplication.isPlaying && !string.IsNullOrEmpty(gameObject.scene.name))
{
return;
}
// do NOT regenerate GlobalObjectIdHash if Editor is transitining into or out of PlayMode
if (!UnityEditor.EditorApplication.isPlaying && UnityEditor.EditorApplication.isPlayingOrWillChangePlaymode)
{
return;
}
var globalObjectIdString = UnityEditor.GlobalObjectId.GetGlobalObjectIdSlow(this).ToString();
GlobalObjectIdHash = XXHash.Hash32(globalObjectIdString);
}
public NoiseGenerator(float frequency)
{
_hash1 = new XXHash(Random.Range(0, 0x7fffffff));
_hash2 = new XXHash(Random.Range(0, 0x7fffffff));
_hash3 = new XXHash(Random.Range(0, 0x7fffffff));
_frequency = frequency;
}
public void Hash64_LongStream_ReturnsExpected()
{
var buffer = getLargeBuffer();
using var stream = new MemoryStream(buffer);
Assert.AreEqual(17345881079506341799, XXHash.Hash64(stream));
}
public NoiseGenerator(float frequency)
{
_hash1 = new XXHash(Random.Range(0, 0x7fffffff));
_hash2 = new XXHash(Random.Range(0, 0x7fffffff));
_hash3 = new XXHash(Random.Range(0, 0x7fffffff));
_frequency = frequency;
}
private static void doRename(string[] args)
{
List <String> images = new List <String>();
rescursiveDig(args[1], images);
List <String> rawDataFiles = new List <String>();
rescursiveDig(args[2], rawDataFiles);
foreach (String imageName in images)
{
if (imageName.Contains(".png"))
{
int count = 0;
String sub = imageName.Substring(args[1].Length, imageName.Length - 5 - args[1].Length);
foreach (String rawFileName in rawDataFiles)
{
if (!rawFileName.Contains(".c") && rawFileName.Contains(sub))
{
byte[] bytes = File.ReadAllBytes(rawFileName);
uint result = XXHash.Hash32(bytes);
Console.WriteLine("Found one " + count + " - " + sub + " crc " + getHex((int)result, 8) + rawFileName);
byte[] imageData = File.ReadAllBytes(imageName);
File.WriteAllBytes(args[3] + getHex((int)result, 8) + ".png", imageData);
count++;
}
}
}
}
}
public Region GetOrGenerateRegion(Vector2Int position)
{
if (this.regions.TryGetValue(position, out Region region))
{
return(region);
}
byte[] buf = BitConverter.GetBytes(position.x).Concat(BitConverter.GetBytes(position.y)).ToArray();
uint valueX = XXHash.CalculateHash(buf, buf.Length, seed: Convert.ToUInt32(seed));
uint valueZ = XXHash.CalculateHash(buf, buf.Length, seed: Convert.ToUInt32(seed + 1));
Vector2 relativeVoronoiPoint = new Vector2(valueX, valueZ) / uint.MaxValue;
Vector2 voronoiPoint = (position + relativeVoronoiPoint);
float humidity = (float)SimplexNoise.Scale(NoiseGenerator.Eval(voronoiPoint.x, voronoiPoint.y), 0d, 1d);
float temperature = (float)SimplexNoise.Scale(NoiseGenerator.Eval(voronoiPoint.y, voronoiPoint.x), 0d, 1d);
region = new Region(
name: "",
regionID: position,
relativeVoronoiPoint,
humidity, temperature
);
Debug.Log($"Generated Region {region.RegionID} with Humidity: {region.Humidity} and Temperature: {region.Temperature}");
regions.Add(region.RegionID, region);
// TODO: Remove this later, it is for debugging
// GameObject go = new GameObject($"Voronoi {x} {z}");
// go.transform.position = new Vector3(region.VoronoiWorldPoint.x, 0, region.VoronoiWorldPoint.y);
return(region);
}
public void Hash32_LongStream_ReturnsExpected()
{
var buffer = getLargeBuffer();
using var stream = new MemoryStream(buffer);
Assert.AreEqual(3662909991, XXHash.Hash32(stream));
}
public void Execute([ReadOnly] ref Voxel voxel, ref TransformMatrix matrix)
{
// Per-instance random number
var hash = new XXHash(voxel.ID);
var rand1 = hash.Value01(1);
var rand2 = hash.Value01(2);
// Extract the current position/scale.
var pos = matrix.Value.m3.xyz;
var scale = matrix.Value.m0.x;
// Move/Shrink.
pos += new float3(0.1f, -2.0f, 0.3f) * (rand2 + 0.1f) * dt;
scale *= math.lerp(0.9f, 0.98f, rand1);
// Build a new matrix.
matrix = new TransformMatrix {
Value = new float4x4(
scale, 0, 0, 0,
0, scale, 0, 0,
0, 0, scale, 0,
pos.x, pos.y, pos.z, 1
)
};
}
public void Hash64_BinaryTests(string text, uint seed, uint _, ulong hash64)
{
var buffer = Encoding.UTF8.GetBytes(text);
var result = XXHash.Hash64(buffer, seed);
Assert.AreEqual(hash64, result);
}
void Start()
{
var hash = new XXHash(_randomSeed);
var mat = new MaterialOverride(_randomSeed);
var parent = transform;
var rot = quaternion.identity;
// Column - Row - Depth
for (var col = 0u; col < _extent.x; col++)
{
for (var row = 0u; row < _extent.y; row++)
{
// Per-strip parameters
var seed = hash.UInt(col) + hash.UInt(row);
mat.SetParameters(seed + 500);
for (var depth = 0u; depth < _extent.z; depth++)
{
// Random removal
if (hash.Float(seed + depth) < _removalRate)
{
continue;
}
// Instance position
var p = math.float3(col, row, depth);
p.xy = p.xy - _extent.xy / 2 + math.float2(0, 0.5f);
// Instantiation and material overriding
mat.Apply(Instantiate(_prefab, p, rot, parent));
}
}
}
}
public void SetParameters(uint seed)
{
var hash = new XXHash(seed);
_props.SetFloat(_seed1Key, hash.Float(0));
_props.SetFloat(_seed2Key, hash.Float(1));
}
static void Scan(ScanOptions options)
{
var files = Directory.GetFiles(options.Source, "*.*", SearchOption.AllDirectories);
var entries = new List <JsonFileEntry>();
foreach (var file in files)
{
using var fileStream = new FileStream(file, FileMode.Open, FileAccess.Read);
using var streamReader = new BufferedStreamReader(fileStream, 8);
// Check if compressed archive (magic header)
var header = streamReader.Read <uint>();
if (header == 0x80000001)
{
Console.WriteLine($"Found: {Path.GetFileName(file)}, hashing and adding.");
var wholeFile = File.ReadAllBytes(file);
var checksum = XXHash.Hash32(wholeFile);
entries.Add(new JsonFileEntry(Path.GetFileName(file), streamReader.Read <int>(), (int)fileStream.Length, checksum));
}
}
var jsonFile = new JsonFile(entries);
File.WriteAllText(options.SavePath, jsonFile.ToFile());
}
/// <summary>
/// Sends a named message
/// </summary>
/// <param name="name">The message name to send</param>
/// <param name="clientId">The client to send the message to</param>
/// <param name="stream">The message stream containing the data</param>
/// <param name="networkChannel">The channel to send the data on</param>
public void SendNamedMessage(string name, ulong clientId, Stream stream, NetworkChannel networkChannel = NetworkChannel.Internal)
{
ulong hash = 0;
switch (m_NetworkManager.NetworkConfig.RpcHashSize)
{
case HashSize.VarIntFourBytes:
hash = XXHash.Hash32(name);
break;
case HashSize.VarIntEightBytes:
hash = XXHash.Hash64(name);
break;
}
using (var messageBuffer = PooledNetworkBuffer.Get())
using (var writer = PooledNetworkWriter.Get(messageBuffer))
{
writer.WriteUInt64Packed(hash);
messageBuffer.CopyFrom(stream);
m_NetworkManager.MessageSender.Send(clientId, NetworkConstants.NAMED_MESSAGE, networkChannel, messageBuffer);
PerformanceDataManager.Increment(ProfilerConstants.NamedMessageSent);
}
}
public StatementInfo(string statement, int start, int end, int startLine)
{
Hashcode = XXHash.XXH32(Encoding.UTF8.GetBytes(statement));
Start = start;
End = end;
StartLine = startLine;
}
private void PackWadFolders(string wadLocation)
{
//Loop through each WAD folder
foreach (string wadFolder in Directory.EnumerateDirectories(wadLocation))
{
char separator = Pathing.GetPathSeparator(wadFolder);
string wadName = wadFolder.Split(separator).Last();
using (WADFile wad = new WADFile(3, 0))
{
//Add each file to the WAD
foreach (string wadFolderFile in Directory.EnumerateFiles(wadFolder, "*", SearchOption.AllDirectories))
{
string path = wadFolderFile.Replace(wadFolder + separator, "").Replace('\\', '/');
ulong hash = XXHash.XXH64(Encoding.ASCII.GetBytes(path.ToLower()));
string extension = Path.GetExtension(wadFolderFile);
wad.AddEntry(hash, File.ReadAllBytes(wadFolderFile), extension != ".wpk" && extension != ".bnk" ? true : false);
}
//After WAD creation is finished we can write the WAD to the ZIP
ZipArchiveEntry archiveEntry = this.Content.CreateEntry(string.Format(@"WAD\{0}", wadName));
wad.Write(archiveEntry.Open());
}
}
}
public void Hash32_BinaryTests(string text, uint seed, uint hash32, ulong _)
{
var buffer = Encoding.UTF8.GetBytes(text);
var result = XXHash.Hash32(buffer, seed);
Assert.That(result, Is.EqualTo(hash32));
}
private void PackWadFolder(string wadFolderLocation)
{
string[] wadFolderFiles = Directory.GetFiles(wadFolderLocation, "*", SearchOption.AllDirectories);
if (wadFolderFiles.Length > 0)
{
char separator = Pathing.GetPathSeparator(wadFolderLocation);
string wadName = wadFolderLocation.Split(separator).Last();
WadBuilder wad = new WadBuilder();
//Add each file to the WAD
foreach (string wadFolderFile in Directory.EnumerateFiles(wadFolderLocation, "*", SearchOption.AllDirectories))
{
string path = wadFolderFile.Replace(wadFolderLocation + separator, "").Replace('\\', '/');
ulong hash = XXHash.XXH64(Encoding.ASCII.GetBytes(path.ToLower()));
WadEntryBuilder entryBuilder = new();
entryBuilder
.WithPathXXHash(hash)
.WithFileDataStream(File.OpenRead(wadFolderFile));
wad.WithEntry(entryBuilder);
}
//After WAD creation is finished we can write the WAD to the ZIP
ZipArchiveEntry archiveEntry = this.Content.CreateEntry(string.Format("WAD/{0}", wadName));
wad.Build(archiveEntry.Open(), false);
}
}
public NoiseGenerator(int seed, float frequency)
{
_hash1 = new XXHash(seed);
_hash2 = new XXHash(seed ^ 0x1327495a);
_hash3 = new XXHash(seed ^ 0x3cbe84f2);
_frequency = frequency;
}
public static string ComputeURLHash(string value)
{
byte[] vba = Encoding.UTF8.GetBytes(value);
ulong hv = XXHash.XXH64(vba);
return(Convert.ToBase64String(BitConverter.GetBytes(hv)));
}
/// <summary>XXHash 256 bytes.</summary>
/// <param name="bytes">The bytes.</param>
/// <returns>
/// <br />
/// </returns>
public static byte[] Twox256(byte[] bytes)
{
return(BitConverter.GetBytes(XXHash.XXH64(bytes, 0))
.Concat(BitConverter.GetBytes(XXHash.XXH64(bytes, 1)))
.Concat(BitConverter.GetBytes(XXHash.XXH64(bytes, 2)))
.Concat(BitConverter.GetBytes(XXHash.XXH64(bytes, 3)))
.ToArray());
}
public void Hash32_BigEndian_BinaryTests(string text, uint seed, uint hash32, ulong _)
{
Bits.IsBigEndian = true;
var buffer = Encoding.UTF8.GetBytes(text);
var result = XXHash.Hash32(buffer, seed);
Assert.AreEqual(hash32, result);
}
Vector3 RandomPoint(XXHash hash, int id)
{
float u = hash.Range(-Mathf.PI, Mathf.PI, id * 2);
float z = hash.Range(-1.0f, 1.0f, id * 2 + 1);
float l = Mathf.Sqrt(1 - z * z);
return(new Vector3(Mathf.Cos(u) * l, Mathf.Sin(u) * l, z));
}
/// <summary>
/// Writes a frame of input to the file.
/// </summary>
/// <param name="inputs">a frame of input to write.</param>
public unsafe void WriteInputs(NativeSlice <PlayerInput> inputs)
{
Assert.IsTrue(inputs.Length == _config.PlayerCount);
var ptr = (byte *)NativeSliceUnsafeUtility.GetUnsafeReadOnlyPtr(inputs);
int size = _config.PlayerCount * UnsafeUtility.SizeOf <PlayerInput>();
_writer.Write(XXHash.Hash64(ptr, size));
_writer.WriteBytes(ptr, size);
}
public void Hash32_StreamTests(string text, uint seed, uint hash32, ulong _)
{
var buffer = Encoding.UTF8.GetBytes(text);
using var stream = new MemoryStream(buffer);
var result = XXHash.Hash32(stream, seed);
Assert.That(result, Is.EqualTo(hash32));
}
public void Hash64_StreamTests(string text, uint seed, uint _, ulong hash64)
{
var buffer = Encoding.UTF8.GetBytes(text);
using var stream = new MemoryStream(buffer);
var result = XXHash.Hash64(stream, seed);
Assert.AreEqual(hash64, result);
}
public static string GetStorageKey(Hasher type, byte[] bytes)
{
// byte[] key = new byte[2 * Consts.STORAGE_KEY_BYTELENGTH + 3];
string key = string.Empty;
if (type == Hasher.XXHASH)
{
var xxhash1 = XXHash.XXH64(bytes, 0, bytes.Length, 0);
byte[] bytes1 = new byte[] {
(byte)(xxhash1 & 0xFF),
(byte)((xxhash1 & 0xFF00) >> 8),
(byte)((xxhash1 & 0xFF0000) >> 16),
(byte)((xxhash1 & 0xFF000000) >> 24),
(byte)((xxhash1 & 0xFF00000000) >> 32),
(byte)((xxhash1 & 0xFF0000000000) >> 40),
(byte)((xxhash1 & 0xFF000000000000) >> 48),
(byte)((xxhash1 & 0xFF00000000000000) >> 56)
};
var xxhash2 = XXHash.XXH64(bytes, 0, bytes.Length, 1);
byte[] bytes2 = new byte[] {
(byte)(xxhash2 & 0xFF),
(byte)((xxhash2 & 0xFF00) >> 8),
(byte)((xxhash2 & 0xFF0000) >> 16),
(byte)((xxhash2 & 0xFF000000) >> 24),
(byte)((xxhash2 & 0xFF00000000) >> 32),
(byte)((xxhash2 & 0xFF0000000000) >> 40),
(byte)((xxhash2 & 0xFF000000000000) >> 48),
(byte)((xxhash2 & 0xFF00000000000000) >> 56)
};
foreach (var bt in bytes1)
{
key += bt.ToString("X2");
}
foreach (var bt in bytes2)
{
key += bt.ToString("X2");
}
}
else if (type == Hasher.BLAKE2)
{
var config = new Blake2Core.Blake2BConfig {
OutputSizeInBytes = 16
};
var hash = Blake2Core.Blake2B.ComputeHash(bytes, 0, bytes.Length, config);
foreach (var bt in hash)
{
key += bt.ToString("X2");
}
}
return(key);
}
public void SameSeedSameNumbers()
{
HashFunction duplicate = new XXHash(seed);
for (int i = 0; i < 100; i++)
{
int key = random.Next(int.MinValue, int.MaxValue);
Assert.AreEqual(function.Value(key), duplicate.Value(key), "Hash functions of same seed given same value should produce same output.");
}
}
public void Hash32_StreamTests(string text, uint seed, uint hash32, ulong _)
{
var buffer = Encoding.UTF8.GetBytes(text);
using (var stream = new MemoryStream(buffer))
{
var result = XXHash.Hash32(stream, seed);
Assert.AreEqual(hash32, result);
}
}
void Start()
{
var hash = new XXHash();
var texture = new Texture2D(size, size);
for (var y = 0; y < size; y++)
{
for (var x = 0; x < size; x++)
{
var c = hash.Value01(x + y * size);
texture.SetPixel(x, y, new Color(c, c, c));
}
}
texture.Apply();
GetComponent<Renderer>().material.mainTexture = texture;
}
