private void AddChunksToLoad(Dictionary <Vector3Int, ChunkLoadType> chunksToLoad, Vector3Int center, int targetRadius, ChunkLoadType loadType)
{
Vector3Int releativePos;
for (int y = 0; y <= targetRadius; y = GetNextY(y))
{
int radius = 0;
Vector3Int offset = new Vector3Int(0, 0, -1);
releativePos = new Vector3Int(0, y, 0);
for (int i = 0; ; i++)
{
if (i == MathExt.Pow(radius * 2 + 1, 2))
{
radius++;
if (radius == targetRadius + 1)
{
break;
}
releativePos = new Vector3Int(radius, y, radius);
}
else if (radius > 0)
{
SwithOffset();
releativePos += offset;
}
if (releativePos.magnitude <= targetRadius)
{
if (!chunksToLoad.ContainsKey(releativePos + center))
{
chunksToLoad.Add(releativePos + center, loadType);
}
}
}
void SwithOffset()
{
if (releativePos.x == radius && releativePos.z == radius)
{
offset = new Vector3Int(0, 0, -1);
}
if (releativePos.x == radius && releativePos.z == -radius)
{
offset = new Vector3Int(-1, 0, 0);
}
if (releativePos.x == -radius && releativePos.z == -radius)
{
offset = new Vector3Int(0, 0, 1);
}
if (releativePos.x == -radius && releativePos.z == radius)
{
offset = new Vector3Int(1, 0, 0);
}
}
}
int GetNextY(int y)
{
if (y == 0)
{
return(1);
}
else if (y < 0)
{
return(-y + 1);
}
else
{
return(-y);
}
}
}