public int CostlyUpdate(WaveParticlesQuadtree quadtree, float deltaTime)
{
float depth;
if (frequency < 0.025f) // in case of big waves, sample center and front of the particle to get a better result
{
float posx = position.x + direction.x / frequency;
float posy = position.y + direction.y / frequency;
depth = Mathf.Max(StaticWaterInteraction.GetTotalDepthAt(position.x, position.y), StaticWaterInteraction.GetTotalDepthAt(posx, posy));
}
else
{
depth = StaticWaterInteraction.GetTotalDepthAt(position.x, position.y);
}
if (depth <= 0.001f)
{
Destroy();
return(0);
}
UpdateWaveParameters(deltaTime, depth);
int numSubdivisions = 0;
if (quadtree != null && !disallowSubdivision)
{
if (leftNeighbour != null)
{
Subdivide(quadtree, leftNeighbour, this, ref numSubdivisions);
}
if (rightNeighbour != null)
{
Subdivide(quadtree, this, rightNeighbour, ref numSubdivisions);
}
}
return(numSubdivisions);
}
private void CreateShoalingSpawnPoints()
{
var bounds = new Bounds(transform.position, new Vector3(boundsSize.x, 0.0f, boundsSize.y));
float minX = bounds.min.x;
float minZ = bounds.min.z;
float maxX = bounds.max.x;
float maxZ = bounds.max.z;
float spawnPointsDensitySqrt = Mathf.Sqrt(spawnPointsDensity);
float stepX = Mathf.Max(35.0f, bounds.size.x / 256.0f) / spawnPointsDensitySqrt;
float stepZ = Mathf.Max(35.0f, bounds.size.z / 256.0f) / spawnPointsDensitySqrt;
bool[,] tiles = new bool[32, 32];
var spawnPoints = new List <SpawnPoint>();
var waves = windWaves.SpectrumResolver.SelectShorelineWaves(50, 0, 360);
if (waves.Length == 0)
{
this.spawnPoints = new SpawnPoint[0];
return;
}
float minSpawnDepth = spawnDepth * 0.85f;
float maxSpawnDepth = spawnDepth * 1.18f;
for (float z = minZ; z < maxZ; z += stepZ)
{
for (float x = minX; x < maxX; x += stepX)
{
int tileX = Mathf.FloorToInt(32.0f * (x - minX) / (maxX - minX));
int tileZ = Mathf.FloorToInt(32.0f * (z - minZ) / (maxZ - minZ));
if (!tiles[tileX, tileZ])
{
float depth = StaticWaterInteraction.GetTotalDepthAt(x, z);
if (depth > minSpawnDepth && depth < maxSpawnDepth && Random.value < 0.06f)
{
tiles[tileX, tileZ] = true;
Vector2 dir;
dir.x = StaticWaterInteraction.GetTotalDepthAt(x - 3.0f, z) - StaticWaterInteraction.GetTotalDepthAt(x + 3.0f, z);
dir.y = StaticWaterInteraction.GetTotalDepthAt(x, z - 3.0f) - StaticWaterInteraction.GetTotalDepthAt(x, z + 3.0f);
dir.Normalize();
var bestWave = waves[0];
float bestWaveDot = Vector2.Dot(dir, waves[0].direction);
for (int i = 1; i < waves.Length; ++i)
{
float dot = Vector2.Dot(dir, waves[i].direction);
if (dot > bestWaveDot)
{
bestWaveDot = dot;
bestWave = waves[i];
}
}
spawnPoints.Add(new SpawnPoint(new Vector2(x, z), dir, bestWave.frequency, Mathf.Abs(bestWave.amplitude), bestWave.speed));
}
}
}
}
this.spawnPoints = spawnPoints.ToArray();
}