IEnumerator ProcessQueue()
{
while (true)
{
if (!Switch())
{
yield return(null);
}
if (queue.Count > 0)
{
int index = Dequeue();
GrassDataChunk chunk = new GrassDataChunk();
chunk.center = data.chunkPos [index];
int steps = CalSteps(index);
yield return(Builder.GenChunk(chunk, steps, data.texSpawnMap));
chunks [index] = chunk;
chunkState [index] = ChunkState.done;
}
else
{
yield return(null);
}
}
}
int CalLod(GrassDataChunk chunk)
{
float dis = Vector3.Distance(chunk.center, playerPos);
for (int i = 0; i < LODCount; i++)
{
if (dis < settings.lodDis [i])
{
return(i);
}
}
return(LODCount - 1);
}
bool Sort_Need(GrassDataChunk chunk)
{
if (chunk.sortState == SortState.idle)
{
chunk.lastDir = playerPos - chunk.center;
return(true);
}
else if (chunk.sortState == SortState.inQueue)
{
return(false);
}
else if (chunk.sortState == SortState.done)
{
Vector3 dir = playerPos - chunk.center;
if (Vector3.Angle(dir, chunk.lastDir) > 30)
{
chunk.lastDir = dir;
return(true);
}
}
return(false);
}
public IEnumerator GenChunk(GrassDataChunk chunk, int steps, Texture2D spawnMapTex)
{
if (initColors == false)
{
initColors = true;
colors = spawnMapTex.GetPixels();
}
var spawnMapTexWidth = spawnMapTex.width;
var spawnMapTexHeight = spawnMapTex.height;
var data = holder.data;
float channel = 0;
var centerVector = chunk.center;
Vector2 texUV;
Vector2 lmUV;
Matrix4x4[] mas = new Matrix4x4[settings.ChunkSize];
Vector4[] uv = new Vector4[settings.ChunkSize];
Vector3[] pos = new Vector3[settings.ChunkSize];
int index = 0;
for (int i = 0; i < settings.ChunkSize; i++)
{
if (steps >= 0 && (i % steps == 0))
{
yield return(null);
}
mOrigon.x = Random.Range(centerVector.x - mHalfLength, centerVector.x + mHalfLength);
mOrigon.z = Random.Range(centerVector.z - mHalfLength, centerVector.z + mHalfLength);
mRay.origin = mOrigon;
mPos = new Vector3(mOrigon.x, 0, mOrigon.z);
///////////////////////////
/// Get Color
///////////////////////////
float uvx = (mPos.x - (settings.MapCenter.x - settings.MapSize)) / (settings.MapSize * 2);
float uvy = (mPos.z - (settings.MapCenter.z - settings.MapSize)) / (settings.MapSize * 2);
uvx = Mathf.Clamp(uvx, 0f, 1f);
uvy = Mathf.Clamp(uvy, 0f, 1f);
int idx = (int)(uvx * spawnMapTexWidth);
int idy = (int)(uvy * spawnMapTexHeight);
idx = Mathf.Clamp(idx, 0, spawnMapTexWidth);
idy = Mathf.Clamp(idy, 0, spawnMapTexHeight);
//lsy Todo dont use GetPixel
var c = spawnMapTex.GetPixelBilinear(uvx, uvy);
//var cid = XYtoIndex(spawnMapTexWidth,spawnMapTexHeight,idx,idy);
//var c = colors[cid];
///////////////////////////
///////////////////////////
///////////////////////////
channel = c.r;
var height = data.heightMin + c.g * (data.heightMax - data.heightMin);
//1 Pos from map
mPos = new Vector3(mPos.x, height - 0.03f, mPos.z);
//2 Pos from raycast
// if (Physics.Raycast (mRay, out mHitInfo, 2000, 1 << 28 | 1 << 17)) {
// mPos = mHitInfo.point;
// }
if (channel > 0 && CanPlace(channel))
{
float scaleModi = Mathf.Clamp01(channel);
float scaleModi2 = scaleModi * scaleModi;
mPos += yDelta * scaleModi;
mScale = Random.Range(0.9f, 1.2f) * settings.prefabsLOD [0].transform.localScale;
//1 For map
//Rotation by terrain up vector
var x = c.b * 2 - 1;
var z = c.a * 2 - 1;
//var up = new Vector3 (x, Mathf.Sqrt( 1-x*x-z*z),z);
var up = new Vector3(x, 1, z);
mRot = Quaternion.Euler(0, Random.Range(0, 360), 0);
//Debug.Log (string.Format("{0} {1} {2}",up.x,up.y,up.z));
mRot = Quaternion.FromToRotation(Vector3.up, up) * mRot;
//2 For raycast
//mRot = Quaternion.Euler (0, Random.Range (0, 360), 0);
transMatrix = Matrix4x4.TRS(mPos, mRot, mScale);
//int lmIndex = mHitInfo.collider.GetComponentInChildren<MeshRenderer> ().lightmapIndex;
//int lmIndex = data.GetLMIndex(mPos);
//CreateMaterial (lmIndex);
// if (!chunk.dataLMIndex.Contains (lmIndex)) {
// chunk.dataLMIndex.Add (lmIndex);
// chunk.data.Add (new GrassDataChunkDataPerLM ());
// }
// int id = FindIndex(chunk.dataLMIndex,lmIndex);
// if (id >= mas.Count) {
// mas.Add (new List<Matrix4x4> ());
// uv.Add (new List<Vector4> ());
// pos.Add (new List<Vector3> ());
// }
// mas [id].Add (transMatrix);
// pos [id].Add (mPos);
// //uv [id].Add (new Vector4 (lmUV.x, lmUV.y, channel, 0));
// uv [id].Add (new Vector4 (0, 0, channel, 0));
mas[index] = transMatrix;
pos[index] = mPos;
//uv [id].Add (new Vector4 (lmUV.x, lmUV.y, channel, 0));
uv[index] = new Vector4(0, 0, channel, 0);
++index;
}
}
/////////
var item = chunk.data;
int count = index;
item.count = count;
item.mas = mas;
item.uv = uv;
item.pos = pos;
item.masB = new Matrix4x4[count];
item.uvB = new Vector4[count];
item.posB = new Vector3[count];
item.dis = new int[count];
}
void Sort_AddToQueue(GrassDataChunk chunk)
{
chunk.sortState = SortState.inQueue;
sortQueue.Enqueue(chunk);
}