public List <Vector2> Generate(MyRectangle generationArea, float generationCount,
float exclusionRadius, int maxTries, int maxPerGridCount, IIntensitySamplingProvider intensityProvider)
{
var random = new UnsafeRandomProvider(); //todo!
var offsetGenerationArea = new MyRectangle(0, 0, generationArea.Width, generationArea.Height);
float cellSize = exclusionRadius;
var width = generationArea.Width;
var height = generationArea.Height;
var grid = new CountingGenerationGrid(
cellSize,
new IntVector2(Mathf.CeilToInt(width / cellSize), Mathf.CeilToInt(height / cellSize))
);
var processList = new GenerationRandomQueue <Vector2>();
var acceptedPoints = new List <Vector2>(1000);
var firstPoint = new Vector2(random.Next(0, width), random.Next(0, height));
processList.Add(firstPoint);
acceptedPoints.Add(firstPoint);
grid.Increment(firstPoint);
int tryCount = 0;
while (!processList.Empty)
{
var point = processList.RandomPop();
for (int i = 0; i < generationCount; i++)
{
Vector2 newPoint = GenerateRandomPointAround(point, exclusionRadius, random);
if (offsetGenerationArea.Contains(newPoint))
{
var maxPointsInGrid =
intensityProvider.Sample(
RectangleUtils.CalculateSubelementUv(offsetGenerationArea, newPoint)) *
maxPerGridCount;
if (grid.Retrive(newPoint) < maxPointsInGrid)
{
processList.Add(newPoint);
acceptedPoints.Add(newPoint);
grid.Increment(newPoint);
}
}
tryCount++;
}
if (tryCount > maxTries)
{
break;
}
}
return(acceptedPoints.Select(c => c + generationArea.DownLeftPoint).ToList());
}
public void CreateDebugIntensityTexture(IIntensitySamplingProvider provider)
{
var tex = new Texture2D(16, 16, TextureFormat.ARGB32, false, true);
for (int x = 0; x < 16; x++)
{
for (int y = 0; y < 16; y++)
{
tex.SetPixel(x, y, new Color(provider.Sample(new Vector2(x / 15f, y / 15f)), 0, 0, 1));
}
}
tex.Apply(false);
SavingFileManager.SaveTextureToPngFile($@"C:\inz2\Intensity.png", tex);
}
public List <Vector2> Generate(MyRectangle generationArea, int generationCount, float maxTries,
float exclusionRadius, bool collisionsAreChecked, IIntensitySamplingProvider intensitySamplingProvider)
{
var random = new UnsafeRandomProvider(); //todo!
var offsetGenerationArea = new MyRectangle(0, 0, generationArea.Width, generationArea.Height);
float cellSize = exclusionRadius / Mathf.Sqrt(2);
var width = generationArea.Width;
var height = generationArea.Height;
var grid = new SingleElementGenerationGrid(
cellSize,
Mathf.CeilToInt(width / cellSize), Mathf.CeilToInt(height / cellSize),
exclusionRadius
);
var acceptedPoints = new List <Vector2>(generationCount);
int generatedPointsCount = 0;
int triesCount = 0;
while (generatedPointsCount < generationCount && triesCount < maxTries)
{
var randomPoint = new Vector2(random.Next(0, width), random.Next(0, height));
var randomPointValue = random.NextValue;
var intensity =
intensitySamplingProvider.Sample(
RectangleUtils.CalculateSubelementUv(offsetGenerationArea, randomPoint));
if (intensity >= randomPointValue)
{
if (!collisionsAreChecked || !grid.Collides(randomPoint))
{
if (collisionsAreChecked)
{
grid.Set(randomPoint);
}
acceptedPoints.Add(randomPoint);
generatedPointsCount++;
}
}
triesCount++;
}
return(acceptedPoints.Select(c => c + generationArea.DownLeftPoint).ToList());
}
private float?CalculateExclusionRadius(
Vector2 point,
MyRectangle offsetGenerationArea,
MyRange exclusionRadiusRange,
IIntensitySamplingProvider intensityProvider)
{
var uv = RectangleUtils.CalculateSubelementUv(offsetGenerationArea, point);
var sample = intensityProvider.Sample(uv);
var exclusionRadius = exclusionRadiusRange.Lerp(1 - sample);
if (sample > 0.01f)
{
return(exclusionRadius);
}
else
{
return(null);
}
}