public void Generate()
{
if (generator == Generator.PerlinNoise)
{
map = PerlinNoise.Generate(size, scale, octaves, persistence, lacunarity);
}
else if (generator == Generator.ExponentiallyDistributedNoise)
{
map = ExponentiallyDistributedNoise.Generate(size, scale, octaves, persistence, lacunarity);
}
else if (generator == Generator.Geneveaux)
{
map = GeneveauxTerrain.Generate(size, riverCount);
}
foreach (Modifier mod in modifiers)
{
if (mod == Modifier.BeyerHydraulicErosion)
{
map = BeyerErosion.Erode(map, erosions);
}
}
if (container == Container.Texture)
{
Texture2D tex = HeightMap2Texture(map);
tex.Apply();
tex.name = "Texture";
AssetDatabase.AddObjectToAsset(tex, this);
AssetDatabase.SetMainObject(this, AssetDatabase.GetAssetPath(this)); // This is disgusting and it is the only way I can get the asset to reload and show the texture
AssetDatabase.ImportAsset(AssetDatabase.GetAssetPath(this));
}
else if (container == Container.Mesh)
{
if (obj != null)
{
DestroyImmediate(obj);
}
/* GameObject obj = new GameObject();
* Mesh mesh = HeightMap2Mesh(map);
*
* MeshFilter filter = obj.AddComponent<MeshFilter>();
* filter.sharedMesh = mesh;
*
* MeshRenderer renderer = obj.AddComponent<MeshRenderer>();
* renderer.sharedMaterial = new Material(Shader.Find("Specular"));
*
* AssetDatabase.AddObjectToAsset(obj, this);
* AssetDatabase.AddObjectToAsset(mesh, this); */
obj = HeightMap2Mesh(map);
obj.name = "Terrain";
// PrefabUtility.SaveAsPrefabAsset(obj, "Assets/terrain.prefab");
// AssetDatabase.AddObjectToAsset(obj, this);
// AssetDatabase.SetMainObject(obj, AssetDatabase.GetAssetPath(this));
}
}
/// <summary>
/// Applies the filter to the specified image.
/// </summary>
/// <param name="image">The image.</param>
/// <param name="targetLocation">The target location.</param>
/// <returns>The image</returns>
public unsafe Image Apply(Image image, Rectangle targetLocation = default(Rectangle))
{
targetLocation = targetLocation == default(Rectangle) ? new Rectangle(0, 0, image.Width, image.Height) : targetLocation.Clamp(image);
var Result = new Color[image.Pixels.Length];
Array.Copy(image.Pixels, Result, Result.Length);
var XNoise = PerlinNoise.Generate(image.Width, image.Height, 255, 0, 0.0625f, 1.0f, 0.5f, Roughness, Seed);
var YNoise = PerlinNoise.Generate(image.Width, image.Height, 255, 0, 0.0625f, 1.0f, 0.5f, Roughness, Seed * 2);
Parallel.For(targetLocation.Bottom, targetLocation.Top, y =>
{
fixed(Color * TargetPointer = &image.Pixels[(y * image.Width) + targetLocation.Left])
{
Color *TargetPointer2 = TargetPointer;
for (int x = targetLocation.Left; x < targetLocation.Right; ++x)
{
float XDistortion = x + (XNoise.Pixels[(y * image.Width) + x].Red * Power);
float YDistortion = y + (YNoise.Pixels[(y * image.Width) + x].Red * Power);
var X1 = (int)XDistortion.Clamp(0, image.Width - 1);
var Y1 = (int)YDistortion.Clamp(0, image.Height - 1);
int ResultOffset = ((y * image.Width) + x);
int SourceOffset = ((Y1 * image.Width) + X1);
Result[ResultOffset] = image.Pixels[SourceOffset];
}
}
});
return(image.ReCreate(image.Width, image.Height, Result));
}
private Bitmap FillBitmap(int width, int height, double scale, double offsetX, double offsetY, double offsetZ, double persistence, int octaves)
{
PerlinNoise perlinNoise = new PerlinNoise {
scale = scale,
offsetX = offsetX,
offsetY = offsetY,
offsetZ = offsetZ,
octaves = octaves,
persistence = persistence
};
DirectBitmap directBitmap = new DirectBitmap(width, height);
Parallel.For(0, width, (x, state) => {
if (generateToken.IsCancellationRequested)
{
state.Break();
}
for (int y = 0; y < height; y++)
{
int value = (int)(perlinNoise.Generate((double)x / width, (double)y / height) * 255);
directBitmap.SetPixel(x, y, Color.FromArgb(value, value, value));
}
});
if (generateToken.IsCancellationRequested)
{
directBitmap.Dispose();
throw new TaskCanceledException();
}
Bitmap result = directBitmap.Bitmap;
directBitmap.Dispose();
return(result);
}
private void Start()
{
heightmap = PerlinNoise.Generate(width, height, scale, octaves, persistance, lacunarity);
Terrain.terrainData.SetHeights(0, 0, heightmap);
Debug.Log(LocalToWorldFlat(IndicesToLocalFlat(512, 512)));
}
public void KeyMoreThanDataTest()
{
const int _keyLength = 25;
const int _dataLength = 12;
var _noiser = new PerlinNoise();
var _secretData = _noiser.Generate(_dataLength);
var _crypter = new CryptoProvider();
_crypter.Key = _noiser.Generate(_keyLength);
var _crypted = _crypter.Encode(_secretData);
var _deCrypted = _crypter.Decode(_crypted);
CollectionAssert.AreEqual(_secretData, _deCrypted);
}
private bool GenerateIronSample(BlockSpacePosition blockPosition)
{
double calcX = blockPosition.x * 0.1 + 20.0;
double calcY = blockPosition.y * 0.05 - 20.0;
double calcZ = blockPosition.z * 0.1;
double noiseSample = PerlinNoise.Generate(calcX, calcY + 0.01, calcZ);
return(noiseSample < -7.5);
}
private bool GenerateCoalSample(BlockSpacePosition blockPosition)
{
double calcX = blockPosition.x * 0.20;
double calcY = blockPosition.y * 0.20 + 5.0;
double calcZ = blockPosition.z * 0.20;
double noiseSample = PerlinNoise.Generate(calcX, calcY + 0.01, calcZ);
return(noiseSample < -0.465);
}
private bool GenerateRockSample(BlockSpacePosition blockPosition)
{
double calcX = blockPosition.x * 0.018;
double calcY = blockPosition.y * 0.020;
double calcZ = blockPosition.z * 0.018;
double noiseSample = PerlinNoise.Generate(calcX, calcY + 0.01, calcZ);
return((1.0 + noiseSample - ((double)blockPosition.y / 32.0)) > -1.45 ||
noiseSample < -0.3);
}
/// <summary>
/// Generate Perlin Noise procedurally
/// /// </summary>
/// <param name="width"></param>
/// <param name="height"></param>
/// <param name="octavesPercent"></param>
/// <param name="percentFrequency"></param>
/// <returns>Bitmap stream in jpg format</returns>
public async Task <Stream> GetPerlinNoise(int width, int height, int octavesPercent, int percentFrequency)
{
if ((octavesPercent < 1) || (octavesPercent > 100))
{
throw new ArgumentException(nameof(octavesPercent) + " must between 1 and 100");
}
if ((percentFrequency < 1) || (percentFrequency > 100))
{
throw new ArgumentException(nameof(percentFrequency) + " must between 1 and 100");
}
return(await Task.Run(() => { return GetStreamFromBitmap(PerlinNoise.Generate(Width: width, Height: height, Octaves: (int)Math.Ceiling(octavesPercent / 33d), Frequency: (float)new Random().NextDouble() + new Random().Next((int)Math.Ceiling(percentFrequency / 25d)), Amplitude: 1f, Persistance: 1f, MinRGBValue: 0, MaxRGBValue: 255, Seed: Guid.NewGuid().GetHashCode())); }));
}
public override ChunkData[,] Generate(World world, int seed)
{
var size = world.WorldWidth * world.ChunkSize;
var noise = PerlinNoise.Generate(size, size, octaveCount, amplitude, seed);
for (int exp = 0; exp < ExplosionsCount; exp++)
{
int randomExpX = Random.Range(0, size);
int randomExpZ = Random.Range(0, size);
var selection = Selections.SelectSphere(
new Vector3Int(randomExpX, (int)(world.ChunkHeight * 0.25f), randomExpZ), ExplosionsSize).ToList();
for (int i = 0; i < selection.Count; i++)
{
if (selection[i].x < 0 || selection[i].x >= size || selection[i].z < 0 || selection[i].z >= size)
{
continue;
}
noise[selection[i].x, selection[i].z] = 0;
}
}
for (int x = 0; x < size; x++)
{
for (int z = 0; z < size; z++)
{
noise[x, z] *= CurveX.Evaluate((float)x / size) * CurveZ.Evaluate((float)z / size);
}
}
var data = new ChunkData[world.WorldWidth, world.WorldDepth];
for (byte i = 0; i < world.WorldWidth; i++)
{
for (byte j = 0; j < world.WorldDepth; j++)
{
var chunk = new ChunkData(world.ChunkSize, world.ChunkHeight);
FillChunk(world, chunk, noise, i, j);
data[i, j] = chunk;
}
}
return(data);
}
public HeightMap(bool pPerlin, int pSize)
{
_size = pSize;
if (pPerlin)
{
var n = new PerlinNoise(pSize);
_map = n.Generate(4, .7f, .4f, .3f, .1f);
}
else
{
var n = new DiamondSquareNoise(pSize);
_map = n.Generate(0, 5, .5f);
float maxHeight = 0;
float maxDepth = 1;
for (int x = 0; x < pSize; x++)
{
for (int y = 0; y < pSize; y++)
{
if (_map[x, y] > maxHeight)
{
maxHeight = _map[x, y];
}
if (_map[x, y] < maxDepth)
{
maxDepth = _map[x, y];
}
}
}
//Scale all points so they are within max/min
maxDepth = Math.Abs(maxDepth);
for (int x = 0; x < pSize; x++)
{
for (int y = 0; y < pSize; y++)
{
if (_map[x, y] < 0)
{
_map[x, y] = _map[x, y] / maxDepth;
}
else if (_map[x, y] > 0)
{
_map[x, y] = _map[x, y] / maxHeight;
}
}
}
}
}
private void Reload()
{
var matrix = PerlinNoise.Generate(Width, Height, OctavesCount, Amplitude, 0);
var maxX = matrix.GetLength(0);
var maxY = matrix.GetLength(1);
perlin = new float[maxX * maxY];
for (var i = 0; i < maxX; i++)
{
for (var j = 0; j < maxY; j++)
{
var index = j * maxX + i;
perlin[index] = matrix[i, j];
}
}
}
public void CryptStringTest()
{
const int _keyLength = 12;
var _noiser = new PerlinNoise();
var _secretData = "Однажды, в студеную зимнюю пору я из лесу вышел; был сильный мороз.";
var _crypter = new CryptoProvider();
_crypter.Key = _noiser.Generate(_keyLength);
var _crypted = _crypter.Encode(_secretData);
var _deCrypted = _crypter.DecodeToString(_crypted);
Assert.AreEqual(_secretData, _deCrypted);
}
//public float z = 0.5f;
private void OnDrawGizmosSelected()
{
Gizmos.color = Color.blue;
for (float x = 0.0f; x < 5; x += 0.1f)
{
for (float z = 0.0f; z < 5; z += 0.1f)
{
}
}
for (int i = 0; i < 10000; i++)
{
var p = UnityEngine.Random.insideUnitSphere;
var noise = PerlinNoise.Generate(p.x + 0.5f, p.y + 0.5f, p.z + 0.5f);
p = p * (20 + noise);
Gizmos.DrawSphere(p, 0.1f);
}
}
void Generate()
{
perlinGenerator.Generate();
gridSpawner.Generate();
}
public void GenerateReturnsArrayOfData()
{
PerlinNoise tm = new PerlinNoise();
float[][] data = tm.Generate(0, 10, 0, 20, 10, 8, 128, 4);
}
// генерирует карту высот с размером SizeX, SizeY, по методу LandGenMethod c коэффициентами Convs, со сглаживанием или нет (Smoothing) с долинизацией (Valley)
public void GenerateHeightmap(int SizeX, int SizeY, GenMethod LandGenMethod, Convolution[] Convs, bool Smoothing, bool Valley, bool Island)
{
this.SizeX = SizeX;
this.SizeY = SizeY;
Heightmap = new double[SizeX, SizeY];
PerlinNoise Noise = new PerlinNoise(256);
double min = 99999;
double max = -99999;
double[,] ar = new double[SizeX, SizeY];
if (LandGenMethod == GenMethod.Perlin)
{
for (int i = 0; i < SizeX; i++)
{
for (int j = 0; j < SizeY; j++)
{
for (int l = 0; l < Convs.Length; l++)
{
if (Convs[l].Operation == Operation.Plus)
{
if (Convs[l].Coef != 0)
{
ar[i, j] += Noise.Generate(i, j, Convs[l].Coef);
}
else
if (Convs[l].Coef != 0)
{
ar[i, j] *= Noise.Generate(i, j, Convs[l].Coef);
}
}
}
if (max < ar[i, j])
{
max = ar[i, j];
}
if (min > ar[i, j])
{
min = ar[i, j];
}
}
}
}
else
{
Random rand = new Random();
double theta;
double distanceX, distanceY;
double Radius;
double x, y;
double t;
min = 0;
for (int k = 0; k < Convs[0].Coef; k++)
{
Radius = rand.NextDouble() * (SizeX * Convs[1].Coef);
if (Island)
{
theta = rand.NextDouble() * Math.PI * 2;
t = rand.NextDouble();
distanceX = t * (SizeX * Convs[2].Coef - Radius);
distanceY = t * (SizeY * Convs[2].Coef - Radius);
x = SizeX / 2.0 + Math.Cos(theta) * distanceX;
y = SizeY / 2.0 + Math.Sin(theta) * distanceY;
}
else
{
x = SizeX * rand.NextDouble();
y = SizeY * rand.NextDouble();
}
for (int i = 0; i < SizeX; i++)
{
for (int j = 0; j < SizeY; j++)
{
t = Radius * Radius - ((i - x) * (i - x) + (j - y) * (j - y));
if (t > 0)
{
ar[i, j] += t;
}
if (max < ar[i, j])
{
max = ar[i, j];
}
//if (min > ar[i, j]) min = ar[i, j];
}
}
}
}
double coef = 1 / ((max - min));
for (int i = 1; i < SizeX - 1; i++)
{
for (int j = 1; j < SizeY - 1; j++)
{
if (Smoothing)
{
Heightmap[i, j] = (ar[i - 1, j - 1] + ar[i - 1, j] + ar[i - 1, j + 1] +
ar[i, j - 1] + ar[i, j] + ar[i, j + 1] +
ar[i + 1, j - 1] + ar[i + 1, j] + ar[i + 1, j + 1] - 9.0 * min) / (9.0 * (max - min));
}
else
{
Heightmap[i, j] = (ar[i, j] - min) * coef;
}
if (Valley)
{
Heightmap[i, j] = Math.Sqrt(Heightmap[i, j]);
}
}
}
}
