public TerrainChunk(Vector2 coord, HeightMapSettings heightMapSettings, MeshSettings meshSettings, LODInfo[] detailLevels, int colliderLODIndex, Transform parent, Transform viewer, Material material)
{
this.coord = coord;
this.detailLevels = detailLevels;
this.colliderLODIndex = colliderLODIndex;
this.heightMapSettings = heightMapSettings;
this.meshSettings = meshSettings;
this.viewer = viewer;
sampleCentre = coord * meshSettings.meshWorldSize / meshSettings.meshScale;
Vector2 position = coord * meshSettings.meshWorldSize;
bounds = new Bounds(position, Vector2.one * meshSettings.meshWorldSize);
meshObject = new GameObject("Terrain Chunk");
meshRenderer = meshObject.AddComponent <MeshRenderer>();
meshFilter = meshObject.AddComponent <MeshFilter>();
meshCollider = meshObject.AddComponent <MeshCollider>();
meshRenderer.material = material;
meshObject.transform.position = new Vector3(position.x, 0, position.y);
meshObject.transform.parent = parent;
SetVisible(false);
lodMeshes = new LODMesh[detailLevels.Length];
for (int i = 0; i < detailLevels.Length; i++)
{
lodMeshes[i] = new LODMesh(detailLevels[i].lod);
lodMeshes[i].updateCallback += UpdateTerrainChunk;
if (i == colliderLODIndex)
{
lodMeshes[i].updateCallback += UpdateCollisionMesh;
}
}
maxViewDst = detailLevels[detailLevels.Length - 1].visibleDstThreshold;
}
public static HeightMap GenerateHeightMap(int width, int height, HeightMapSettings settings, Vector2 sampleCentre)
{
float[,] values = Noise.GenerateNoiseMap(width, height, settings.noiseSettings, sampleCentre);
AnimationCurve heightCurve_threadsafe = new AnimationCurve(settings.heightCurve.keys);
float minValue = float.MaxValue;
float maxValue = float.MinValue;
if (settings.useFalloff)
{
if (falloffMap == null)
{
falloffMap = FalloffGenerator.GenerateFalloffMap(width);
}
}
for (int i = 0; i < width; i++)
{
for (int j = 0; j < height; j++)
{
values [i, j] *= heightCurve_threadsafe.Evaluate(values [i, j] - (settings.useFalloff ? falloffMap[i, j] : 0)) * settings.heightMultiplier;
if (values[i, j] > maxValue)
{
maxValue = values[i, j];
}
if (values[i, j] < minValue)
{
minValue = values[i, j];
}
}
}
return(new HeightMap(values, minValue, maxValue));
}