private Quaternion RandomYRot(ProceduralPrefab prefab)
{
return(prefab.randomRotation == RotationRandomness.AllAxes
? Quaternion.Euler(360 * (float)rnd.NextDouble(), 360 * (float)rnd.NextDouble(),
360 * (float)rnd.NextDouble())
: Quaternion.Euler(0, 360 * (float)rnd.NextDouble(), 0));
}
IEnumerator InternalGenerate()
{
Debug.Log("Generating tile " + x + ", " + z);
int counter = 0;
float[,] ditherMap = new float[world.subTiles + 2, world.subTiles + 2];
//List<GameObject> objs = new List<GameObject>();
for (int i = 0; i < world.prefabs.Length; i++)
{
ProceduralPrefab pref = world.prefabs[i];
if (pref.singleFixed)
{
Vector3 p = new Vector3((x + 0.5f) * world.tileSize, 0, (z + 0.5f) * world.tileSize);
GameObject ob = GameObject.Instantiate(pref.prefab, p, Quaternion.identity) as GameObject;
ob.transform.parent = root;
}
else
{
float subSize = world.tileSize / world.subTiles;
for (int sx = 0; sx < world.subTiles; sx++)
{
for (int sz = 0; sz < world.subTiles; sz++)
{
ditherMap[sx + 1, sz + 1] = 0;
}
}
for (int sx = 0; sx < world.subTiles; sx++)
{
for (int sz = 0; sz < world.subTiles; sz++)
{
float px = x + sx / (float)world.subTiles; //sx / world.tileSize;
float pz = z + sz / (float)world.subTiles; //sz / world.tileSize;
float perl = Mathf.Pow(Mathf.PerlinNoise((px + pref.perlinOffset.x) * pref.perlinScale, (pz + pref.perlinOffset.y) * pref.perlinScale), pref.perlinPower);
float density = pref.density * Mathf.Lerp(1, perl, pref.perlin) * Mathf.Lerp(1, (float)rnd.NextDouble(), pref.random);
float fcount = subSize * subSize * density + ditherMap[sx + 1, sz + 1];
int count = Mathf.RoundToInt(fcount);
// Apply dithering
// See http://en.wikipedia.org/wiki/Floyd%E2%80%93Steinberg_dithering
ditherMap[sx + 1 + 1, sz + 1 + 0] += (7f / 16f) * (fcount - count);
ditherMap[sx + 1 - 1, sz + 1 + 1] += (3f / 16f) * (fcount - count);
ditherMap[sx + 1 + 0, sz + 1 + 1] += (5f / 16f) * (fcount - count);
ditherMap[sx + 1 + 1, sz + 1 + 1] += (1f / 16f) * (fcount - count);
// Create a number of objects
for (int j = 0; j < count; j++)
{
// Find a random position inside the current sub-tile
Vector3 p = RandomInside(px, pz);
GameObject ob = GameObject.Instantiate(pref.prefab, p, RandomYRot()) as GameObject;
ob.transform.parent = root;
//ob.SetActive ( false );
//objs.Add ( ob );
counter++;
if (counter % 2 == 0)
{
yield return(null);
}
}
}
}
}
}
ditherMap = null;
// Wait a bit so that less tiles are being generated right now to avoid larger FPS spikes
yield return(new WaitForSeconds(0.5f));
//for ( int i=0;i<objs.Count;i++) {
// objs[i].SetActive ( true );
//if ( i % 4 == 0 ) yield return 0;
//}
//Batch everything for improved performance
// if (Application.HasProLicense ()) {
// StaticBatchingUtility.Combine (root.gameObject);
// }
}