/// <summary>
/// Does a check for either FrontZ or BackZ
/// </summary>
/// <param name="box">Box</param>
/// <param name="side">Side</param>
/// <param name="visMatrix">Visibility matrix</param>
/// <param name="z">Z coordinate</param>
/// <param name="x1">X1 coordinate</param>
/// <param name="x2">X2 coordinate</param>
/// <param name="y1">Y1 coordinate</param>
/// <param name="y2">Y2 coordinate</param>
/// <param name="hiddenFaces">Hidden sides reference</param>
private static void CheckHiddenZ(ClientBox box, int side, BinaryMatrix3D visMatrix, int z, ref int x1, ref int x2, ref int y1, ref int y2, ref int hiddenFaces)
{
box.HiddenSides[side] = true;
for (int x = x1; x <= x2; x++)
{
for (int y = y1; y <= y2; y++)
{
if (!visMatrix.Get(ref x, ref y, ref z))
{
box.HiddenSides[side] = false;
break;
}
}
if (!box.HiddenSides[side])
{
break;
}
}
if (box.HiddenSides[side])
{
hiddenFaces++;
}
}
/// <summary>
/// Checks whether the box side is blocked by the neighbour's blocking
/// side.
/// </summary>
/// <param name="box">Box</param>
/// <param name="side">Side</param>
/// <param name="neighbours">Neighbours array</param>
/// <param name="hiddenFaces">Hidden sides reference</param>
/// <returns>True if the box side is blocked</returns>
private bool CheckHidden(ClientBox box, int side, ref ClientSegment[] neighbours, ref int hiddenFaces)
{
if (neighbours[side]._Flags[side])
{
hiddenFaces++;
box.HiddenSides[side] = true;
return(true);
}
return(false);
}