/// <summary>
/// Start generating the mesh.
/// </summary>
public void GenerateNewMesh(Vector2[] terrainNoiseOffset, Vector2 biomeNoiseOffset)
{
// Disable renderer so the old mesh can't be seen in the new place.
meshRenderer.enabled = false;
// Check the terrain tile's 9(3x3 grid) closest voronoi tiles if some tiles are missing create them. Otherwise do nothing.
VoronoiTiling.GenerateMissingCentroids(transform.position);
// Get the closest centroids to the terrain tile to have less centroids for the tiles vertices to go through.
// "amount" is the centroid amount that every vertex in a tile goes through to find the closest one(to get the biome it belongs to).
// Too small => Artifacts, Too large => Lag spike
closestCentroids = VoronoiTiling.GetClosestCentroids(transform.position, 5);
// Stop possible previous coroutines from affecting the latest coroutine
StopAllCoroutines();
StartCoroutine(GenerateDraft(terrainNoiseOffset, biomeNoiseOffset));
}
/// <summary>
/// Get biome that given vertex belongs to.
/// </summary>
private int GetBiome(int x, int z, Vector3 terrainSize, int biomeAmount, Vector2 noiseOffset)
{
float noiseX, noiseZ, value;
if (TerrainController.UsePerlinNoiseForBiomes)
{
noiseX = TerrainController.BiomeFrequency * 0.1f * x / xSegments + noiseOffset.x;
noiseZ = TerrainController.BiomeFrequency * 0.1f * z / zSegments + noiseOffset.y;
value = Mathf.PerlinNoise(noiseX, noiseZ);
}
else
{
noiseX = x * xStep + transform.position.x - terrainSize.x / 2;
noiseZ = z * zStep + transform.position.z - terrainSize.z / 2;
value = VoronoiTiling.GetClosestCentroidValue(new Vector2Int((int)noiseX, (int)noiseZ), closestCentroids);
}
return(Mathf.FloorToInt(value / (1.00f / biomeAmount)));
}
