protected bool[] GetVisibility(int i, int j, int k)
{
bool[] visibility = new bool[6];
BlockType type = _blocks[i, j, k].type;
// Up, Down, Front, Back, Left, Right
Vector3Int[] neighbors =
{
new Vector3Int(i, j + 1, k),
new Vector3Int(i, j - 1, k),
new Vector3Int(i + 1, j, k),
new Vector3Int(i - 1, j, k),
new Vector3Int(i, j, k + 1),
new Vector3Int(i, j, k - 1)
};
for (int ni = 0; ni < neighbors.Length; ni++)
{
Vector3Int npos = neighbors[ni];
BlockType ntype;
if (LocalPositionIsInRange(npos))
{
Block block = _blocks[npos.x, npos.y, npos.z];
ntype = block == null ? null : block.type;
}
else
{
Vector3Int worldPos = LocalToWorldPosition(npos);
WorldChunk chunkNeighbor = chunkManager.GetNearestChunk(worldPos);
if (chunkNeighbor != null)
{
ntype = chunkNeighbor.ReadBlockType(worldPos);
}
else
{
ntype = GetBlockType(worldPos, _seed);
}
}
visibility[ni] = (ntype == null || ntype.isTransparent) && (type != ntype);
}
return(visibility);
}