byte[] MergeWaterData(IntVector4 chunkPos, byte[] baseChunkData)
{
List <string> files = _riverChunkFileList[chunkPos];
int n = files.Count;
if (n > 0)
{
byte[] chunkData = baseChunkData;
for (int i = 0; i < n; i++)
{
chunkData = VFDataReader.MergeChunkData(chunkData, File.ReadAllBytes(files[i]), chunkPos.w);
}
if (chunkPos.w == 0) // || chunkData.Length > VFVoxel.c_VTSize){ //let waterchunk_lod(not full/empty) do minus
{
VFVoxelChunkData tChunk = _terraReader.ReadChunkImm(chunkPos);
chunkData = VFDataReader.MinusChunkData(chunkData, tChunk.DataVT, 0);
}
return(chunkData);
}
return(baseChunkData);
}
private void GenARiverChunk(ref Vector3 boundMin, ref Vector3 boundMax, MeshCollider mc, IntVector4 chunkPos, string filePrefix)
{
int lodPrefix = VoxelTerrainConstants._numVoxelsPrefix << chunkPos.w;
int lodAxisSize = VoxelTerrainConstants.VOXEL_ARRAY_AXIS_SIZE << chunkPos.w;
int sx = (chunkPos.x << VoxelTerrainConstants._shift) - lodPrefix;
int sy = (chunkPos.y << VoxelTerrainConstants._shift) - lodPrefix;
int sz = (chunkPos.z << VoxelTerrainConstants._shift) - lodPrefix;
int ex = sx + lodAxisSize;
int ey = sy + lodAxisSize;
int ez = sz + lodAxisSize;
int minx = Mathf.Max((int)boundMin.x, sx);
int miny = Mathf.Max((int)boundMin.y, sy);
int minz = Mathf.Max((int)boundMin.z, sz);
int maxx = Mathf.Min((int)boundMax.x, ex);
int maxy = Mathf.Min((int)boundMax.y, ey);
int maxz = Mathf.Min((int)boundMax.z, ez);
if (minx >= maxx || miny >= maxy || minz >= maxz)
{
return;
}
//if(miny < VFVoxelWater.c_fWaterLvl) miny = (int)VFVoxelWater.c_fWaterLvl;
VFVoxelChunkData terraChunkData = terraReader.ReadChunkImm(chunkPos);
byte[] terraData = terraChunkData.DataVT;
VFVoxelChunkData waterChunkData0 = waterReader.ReadChunkImm(chunkPos);
byte[] waterData0 = waterChunkData0.DataVT;
//int idxOfs = 32*VoxelTerrainConstants.VOXEL_ARRAY_AXIS_SIZE_VT;
//int yOverlap = VoxelTerrainConstants._numVoxelsPrefix + VoxelTerrainConstants._numVoxelsPostfix;
Ray ray = new Ray();
ray.direction = Vector3.down;
Vector3 origin = new Vector3(0, boundMax.y + 0.5f, 0);
float distance = boundMax.y - miny + 1;
RaycastHit hitInfo;
int step = 1 << chunkPos.w;
int mask = (-1) << chunkPos.w;
minx &= mask;
miny &= mask;
minz &= mask;
int minYIdx = sy < 0 ? 1 : 0; // ignore pos -1;
int start = VFVoxelChunkData.OneIndexNoPrefix((minx - sx) >> chunkPos.w, 0, (minz - sz) >> chunkPos.w);
bool bChunkDirty0 = false;
bool bColDirty;
int cur, y, idx, leftVol, tmpVol;
for (int z = minz; z < maxz; z += step, start += VoxelTerrainConstants.VOXEL_ARRAY_AXIS_SQUARED)
{
cur = start;
origin.z = z;
for (int x = minx; x < maxx; x += step, cur++)
{
origin.x = x;
ray.origin = origin;
if (mc.Raycast(ray, out hitInfo, distance) &&
hitInfo.point.y >= VFVoxelWater.c_fWaterLvl) // this check of y can be removed if neccessary
{
float fHitY = hitInfo.point.y;
int iHitY = (int)(fHitY + 0.5f * step);
int iy = (iHitY - sy) >> chunkPos.w;
if (iy >= 0)
{
bColDirty = false;
if (iy >= VoxelTerrainConstants.VOXEL_ARRAY_AXIS_SIZE)
{
iy = VoxelTerrainConstants.VOXEL_ARRAY_AXIS_SIZE;
y = (VoxelTerrainConstants.VOXEL_ARRAY_AXIS_SIZE - 1);
idx = (cur << 1) + y * VoxelTerrainConstants.VOXEL_ARRAY_AXIS_SIZE_VT;
}
else
{
idx = (cur << 1) + iy * VoxelTerrainConstants.VOXEL_ARRAY_AXIS_SIZE_VT;
leftVol = 255 - terraData[idx];
byte surfVol = 0;
if (leftVol > 0)
{
float fLodHitY = fHitY / step;
float fLodHitYDec = fLodHitY - (int)fLodHitY;
surfVol = fLodHitYDec < 0.5f ? (byte)(256.0f * 0.5f / (1 - fLodHitYDec)) : (byte)(255.999f * (1 - 0.5f / fLodHitYDec));
if (surfVol > waterData0[idx])
{
waterData0[idx] = surfVol;
waterData0[idx + 1] = (byte)VFVoxel.EType.WaterSourceBeg;
bColDirty = true;
}
}
idx -= VoxelTerrainConstants.VOXEL_ARRAY_AXIS_SIZE_VT;
y = iy - 1;
if (bColDirty && y >= 0) //for seamlessness with terrain
{
if (surfVol < 128)
{
waterData0[idx] = 255;
waterData0[idx + 1] = (byte)VFVoxel.EType.WaterSourceBeg;
idx -= VoxelTerrainConstants.VOXEL_ARRAY_AXIS_SIZE_VT;
y--;
}
else
{
waterData0[idx] = 128;
waterData0[idx + 1] = (byte)VFVoxel.EType.WaterSourceBeg;
}
}
}
bool bOverChanged = false, bTmpOverChange = false;
for (; y >= minYIdx; y--, idx -= VoxelTerrainConstants.VOXEL_ARRAY_AXIS_SIZE_VT)
{
bTmpOverChange = false;
leftVol = 255 - terraData[idx];
if (bOverChanged)
{
leftVol += VolPlus;
}
if (leftVol > waterData0[idx])
{
if (!bOverChanged)
{
leftVol += VolPlus;
}
if (leftVol > 255)
{
if (y + 1 < iy)
{
tmpVol = waterData0[idx + VoxelTerrainConstants.VOXEL_ARRAY_AXIS_SIZE_VT];
if (tmpVol < 255)
{
tmpVol += VolPlus;
if (tmpVol > 255)
{
tmpVol = 255;
}
waterData0[idx + VoxelTerrainConstants.VOXEL_ARRAY_AXIS_SIZE_VT] = (byte)tmpVol;
waterData0[idx + VoxelTerrainConstants.VOXEL_ARRAY_AXIS_SIZE_VT + 1] = (byte)VFVoxel.EType.WaterSourceBeg;
}
}
bTmpOverChange = true;
leftVol = 255;
}
waterData0[idx] = (byte)(leftVol);
waterData0[idx + 1] = (byte)VFVoxel.EType.WaterSourceBeg;
bColDirty = true;
}
bOverChanged = bTmpOverChange;
}
if (bColDirty)
{
bChunkDirty0 = true;
}
}
}
}
}
if (bChunkDirty0)
{
WriteChunkToFile(filePrefix, waterChunkData0);
}
waterChunkData0.ClearMem();
terraChunkData.ClearMem();
}