//Copy a grid into context
private static void CopyInto(GridContext bgc, int x, int y, int z, Grid grid, byte groupId)
{
if (bgc == null || grid == null)
{
return;
}
int width = grid.SizeX;
int height = grid.SizeY;
int depth = grid.SizeZ;
IPainter painter = new CPainter();
painter.RectBlit(bgc, grid, x, y, z, x + width, y + height, z + depth, groupId);
}